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Linux Analysis Report
killua.x86.elf

Overview

General Information

Sample name:	killua.x86.elf
Analysis ID:	1646268
MD5:	eb7d52b87ef91c7012c31b5e182967cc
SHA1:	13480e526651b03336a433a1550c96de7c321792
SHA256:	b4f2e5298a677871df72418d8a63ecc8dd22a7c0eee79936e06c2a3c2e425696
Tags:	elfuser-rollcalcifer
Infos:

Detection

Score:	52
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Sample is packed with UPX

Detected TCP or UDP traffic on non-standard ports

ELF contains segments with high entropy indicating compressed/encrypted content

Reads system information from the proc file system

Reads the 'hosts' file potentially containing internal network hosts

Sample contains only a LOAD segment without any section mappings

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1646268
Start date and time:	2025-03-23 19:47:14 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 6m 43s
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:	killua.x86.elf
Detection:	MAL
Classification:	mal52.evad.linELF@0/0@6/0

Warnings

VT rate limit hit for: kittylover321.shop

Runtime Messages

Command:	/tmp/killua.x86.elf
PID:	5432
Exit Code:
Exit Code Info:
Killed:	True
Standard Output:	t.me/kittylover321 golang botnet guys
Standard Error:

Process Tree

system is lnxubuntu20

killua.x86.elf (PID: 5432, Parent: 5356, MD5: eb7d52b87ef91c7012c31b5e182967cc) Arguments: /tmp/killua.x86.elf

killua.x86.elf New Fork (PID: 5437, Parent: 5432)

killua.x86.elf New Fork (PID: 5438, Parent: 5432)

sh (PID: 5438, Parent: 5432, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /usr/bin/sh -c "ulimit -n 9999999"

killua.x86.elf New Fork (PID: 5439, Parent: 5432)

sh (PID: 5439, Parent: 5432, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /usr/bin/sh -c "ulimit -u 9999999"

killua.x86.elf New Fork (PID: 5440, Parent: 5432)

killua.x86.elf (PID: 5440, Parent: 5432, MD5: eb7d52b87ef91c7012c31b5e182967cc) Arguments: /tmp/killua.x86.elf

killua.x86.elf New Fork (PID: 5479, Parent: 5440)

udisksd New Fork (PID: 5451, Parent: 802)

dumpe2fs (PID: 5451, Parent: 802, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

udisksd New Fork (PID: 5540, Parent: 802)

dumpe2fs (PID: 5540, Parent: 802, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Persistence and Installation Behavior
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: killua.x86.elf	Virustotal: Detection: 9%			Perma Link
Source: killua.x86.elf	ReversingLabs: Detection: 16%

Source: global traffic

TCP traffic: 192.168.2.13:49470 -> 176.65.134.43:3333

Source: /tmp/killua.x86.elf (PID: 5432)	Reads hosts file: /etc/hosts			Jump to behavior
Source: /tmp/killua.x86.elf (PID: 5440)	Reads hosts file: /etc/hosts			Jump to behavior

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: global traffic	DNS traffic detected: DNS query: kittylover321.shop
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

Source: killua.x86.elf

String found in binary or memory: http://upx.sf.net

Source: LOAD without section mappings

Program segment: 0x8048000

Source: classification engine

Classification label: mal52.evad.linELF@0/0@6/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $

Source: /tmp/killua.x86.elf (PID: 5432)	Reads from proc file: /proc/meminfo	Jump to behavior
Source: /tmp/killua.x86.elf (PID: 5432)	Reads from proc file: /proc/sys/net/core/somaxconn	Jump to behavior
Source: /tmp/killua.x86.elf (PID: 5440)	Reads from proc file: /proc/meminfo	Jump to behavior

Source: killua.x86.elf

Submission file: segment LOAD with 7.9996 entropy (max. 8.0)

Source: /tmp/killua.x86.elf (PID: 5432)	Queries kernel information via 'uname':			Jump to behavior
Source: /tmp/killua.x86.elf (PID: 5440)	Queries kernel information via 'uname':			Jump to behavior

Source: killua.x86.elf, 5432.1.0000000008800000.0000000008c00000.rw-.sdmp	Binary or memory string: /tmp//vmware-root_727-4290690966/tmp//vmware-root_727-4290690966Deleted config-err-IN1GlB
Source: killua.x86.elf, 5432.1.0000000008800000.0000000008c00000.rw-.sdmp	Binary or memory string: /tmp//vmware-root_727-4290690966/tmp//vmware-root_727-4290690966/tmp//vmware-root_727-4290690966Deleted vmware-root_727-42906909662
Source: killua.x86.elf, 5432.1.0000000008800000.0000000008c00000.rw-.sdmp	Binary or memory string: /tmp//vmware-root_727-4290690966
Source: killua.x86.elf, 5432.1.0000000008800000.0000000008c00000.rw-.sdmp	Binary or memory string: Deleted vmware-root_727-4290690966

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	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	11 Obfuscated Files or Information	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	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	1 File and Directory 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	1 System Information Discovery	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
killua.x86.elf	9%	Virustotal		Browse
killua.x86.elf	17%	ReversingLabs	Linux.Trojan.ZkarletFlash

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high
kittylover321.shop	176.65.134.43	true	false		unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	killua.x86.elf	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
176.65.134.43	kittylover321.shop	Germany		56325	DIOGELO-ASGB	false

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	gigab.sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	yakuza.arm6.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.i586.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.m68k.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.mips.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.sh4.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	yakuza.x32.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	m68k.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
DIOGELO-ASGB	a55fee51fe469b7ed4f23ef3753b380fb548d65f40306962.pptm.ps1	Get hash	malicious	RHADAMANTHYS	Browse	176.65.134.153
	sparc.nn.elf	Get hash	malicious	Mirai	Browse	176.65.134.15
	jae1h6e218.exe	Get hash	malicious	RHADAMANTHYS	Browse	176.65.134.145
	5IY8PW2nOl.exe	Get hash	malicious	RHADAMANTHYS	Browse	176.65.134.145
	tdm.js	Get hash	malicious	Remcos	Browse	176.65.134.41
	morte.x64.elf	Get hash	malicious	Unknown	Browse	176.65.134.62
	morte.m68k.elf	Get hash	malicious	Unknown	Browse	176.65.134.62
	morte.mips.elf	Get hash	malicious	Unknown	Browse	176.65.134.62
	morte.arm.elf	Get hash	malicious	Unknown	Browse	176.65.134.62
	morte.x86.elf	Get hash	malicious	Unknown	Browse	176.65.134.62

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.999581013628897
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	killua.x86.elf
File size:	773'504 bytes
MD5:	eb7d52b87ef91c7012c31b5e182967cc
SHA1:	13480e526651b03336a433a1550c96de7c321792
SHA256:	b4f2e5298a677871df72418d8a63ecc8dd22a7c0eee79936e06c2a3c2e425696
SHA512:	d09fbc1c9fe10928b89857c07638935c158c6b7c19a6b21f011853620290b15f04ea1e3be3c86d04e3365230b3917ae331a915a5d21b20d8c203e4d5f8ec9b26
SSDEEP:	12288:0umUwLjBP+ZIzmtuRwCDTjJMgVgl1U7zSu+3/bohuaMie6o8kXpKA1aPD73lxUmL:0TUuPPzmCFgl1UfSnvbSeie6fk5KQgDX
TLSH:	EEF4338339CFE440A5A2B47B26F00787C270BFE2CEBD85EAB75B7027154B457C60955A
File Content Preview:	.ELF.....................:..4...........4. ...(..............................................P...P..................Q.td.............................i.(UPX!.........@$..@$.....}..........?.E.h;....#..\|`SS.....u ....\..G=...X0.......}.....i.....S.!.....#u.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x8103a10
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8048000	0x8048000	0xbcc8d	0xbcc8d	7.9996	0x5	R E	0x1000
LOAD	0x0	0x8105000	0x8105000	0x0	0x198ea0	0.0000	0x6	RW	0x1000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 24
• 3333 undefined
• 80 (HTTP)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 23, 2025 19:48:02.879729033 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:02.894180059 CET	49470	3333	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.082528114 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:03.082880020 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.083561897 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.111162901 CET	3333	49470	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:03.111392021 CET	49470	3333	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.112282991 CET	49470	3333	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.113153934 CET	49470	3333	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:03.285115957 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:03.327532053 CET	3333	49470	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:03.347080946 CET	3333	49470	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:03.347280979 CET	49470	3333	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:18.287432909 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:18.420490026 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:18.420715094 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:18.499109030 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:33.499466896 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:33.627283096 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:33.627449989 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:33.702019930 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:48:47.507836103 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:48:47.760704041 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:49:02.966484070 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:49:02.966706038 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:49:18.170865059 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:49:18.171140909 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:49:33.428461075 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:49:33.428781033 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:49:48.631968975 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:49:48.632246017 CET	45276	80	192.168.2.13	176.65.134.43
Mar 23, 2025 19:50:03.891333103 CET	80	45276	176.65.134.43	192.168.2.13
Mar 23, 2025 19:50:03.891797066 CET	45276	80	192.168.2.13	176.65.134.43

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 23, 2025 19:48:02.605021000 CET	43735	53	192.168.2.13	8.8.8.8
Mar 23, 2025 19:48:02.606476068 CET	47297	53	192.168.2.13	8.8.8.8
Mar 23, 2025 19:48:02.702701092 CET	53	43735	8.8.8.8	192.168.2.13
Mar 23, 2025 19:48:02.713655949 CET	53	47297	8.8.8.8	192.168.2.13
Mar 23, 2025 19:48:03.026115894 CET	57848	53	192.168.2.13	8.8.8.8
Mar 23, 2025 19:48:03.026273966 CET	55841	53	192.168.2.13	8.8.8.8
Mar 23, 2025 19:48:03.136426926 CET	53	55841	8.8.8.8	192.168.2.13
Mar 23, 2025 19:48:03.136459112 CET	53	57848	8.8.8.8	192.168.2.13
Mar 23, 2025 19:50:46.782079935 CET	49877	53	192.168.2.13	1.1.1.1
Mar 23, 2025 19:50:46.782195091 CET	53118	53	192.168.2.13	1.1.1.1
Mar 23, 2025 19:50:46.880039930 CET	53	53118	1.1.1.1	192.168.2.13
Mar 23, 2025 19:50:46.881237984 CET	53	49877	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 23, 2025 19:48:02.605021000 CET	192.168.2.13	8.8.8.8	0xaccf	Standard query (0)	kittylover321.shop	28	IN (0x0001)	false
Mar 23, 2025 19:48:02.606476068 CET	192.168.2.13	8.8.8.8	0xe56c	Standard query (0)	kittylover321.shop	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:48:03.026115894 CET	192.168.2.13	8.8.8.8	0xda04	Standard query (0)	kittylover321.shop	28	IN (0x0001)	false
Mar 23, 2025 19:48:03.026273966 CET	192.168.2.13	8.8.8.8	0x4d1b	Standard query (0)	kittylover321.shop	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:50:46.782079935 CET	192.168.2.13	1.1.1.1	0x7740	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:50:46.782195091 CET	192.168.2.13	1.1.1.1	0x5b2f	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	Address	Type	Class	DNS over HTTPS
Mar 23, 2025 19:48:02.713655949 CET	8.8.8.8	192.168.2.13	0xe56c	No error (0)	kittylover321.shop	176.65.134.43	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:48:03.136426926 CET	8.8.8.8	192.168.2.13	0x4d1b	No error (0)	kittylover321.shop	176.65.134.43	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:50:46.881237984 CET	1.1.1.1	192.168.2.13	0x7740	No error (0)	daisy.ubuntu.com	162.213.35.24	A (IP address)	IN (0x0001)	false
Mar 23, 2025 19:50:46.881237984 CET	1.1.1.1	192.168.2.13	0x7740	No error (0)	daisy.ubuntu.com	162.213.35.25	A (IP address)	IN (0x0001)	false

HTTP Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port
0	192.168.2.13	45276	176.65.134.43	80

Timestamp	Bytes transferred	Direction	Data
Mar 23, 2025 19:48:03.083561897 CET	31	OUT	Data Raw: 75 6e 6b 6e 6f 77 6e 3b 74 72 75 65 3b 32 3b 32 39 39 32 Data Ascii: unknown;true;2;2992

System Behavior

Analysis Process: killua.x86.elf PID: 5432, Parent PID: 5356

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	/tmp/killua.x86.elf
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

File Activities

File Opened

File Deleted

File Read

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: killua.x86.elf PID: 5437, Parent PID: 5432

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	-
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

Analysis Process: killua.x86.elf PID: 5438, Parent PID: 5432

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	-
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: sh PID: 5438, Parent PID: 5432

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/usr/bin/sh
Arguments:	/usr/bin/sh -c "ulimit -n 9999999"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: killua.x86.elf PID: 5439, Parent PID: 5432

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	-
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: sh PID: 5439, Parent PID: 5432

General

Start time (UTC):	18:48:01
Start date (UTC):	23/03/2025
Path:	/usr/bin/sh
Arguments:	/usr/bin/sh -c "ulimit -u 9999999"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: killua.x86.elf PID: 5440, Parent PID: 5432

General

Start time (UTC):	18:48:02
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	-
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: killua.x86.elf PID: 5440, Parent PID: 5432

General

Start time (UTC):	18:48:02
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	/tmp/killua.x86.elf
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

File Activities

File Opened

File Read

Process Activities

Process Forked

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: killua.x86.elf PID: 5479, Parent PID: 5440

General

Start time (UTC):	18:48:02
Start date (UTC):	23/03/2025
Path:	/tmp/killua.x86.elf
Arguments:	-
File size:	773504 bytes
MD5 hash:	eb7d52b87ef91c7012c31b5e182967cc

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: udisksd PID: 5451, Parent PID: 802

General

Start time (UTC):	18:48:02
Start date (UTC):	23/03/2025
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: dumpe2fs PID: 5451, Parent PID: 802

General

Start time (UTC):	18:48:02
Start date (UTC):	23/03/2025
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

File Activities

File Opened

File Read

Process Activities

Prctl Requested

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: udisksd PID: 5540, Parent PID: 802

General

Start time (UTC):	18:48:46
Start date (UTC):	23/03/2025
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: dumpe2fs PID: 5540, Parent PID: 802

General

Start time (UTC):	18:48:46
Start date (UTC):	23/03/2025
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	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 enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory 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, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information 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, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, 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 killua.x86.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

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

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

HTTP Packets

System Behavior

Analysis Process: killua.x86.elf PID: 5432, Parent PID: 5356

General

File Activities

File Opened

File Deleted

File Read

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: killua.x86.elf PID: 5437, Parent PID: 5432

General

Analysis Process: killua.x86.elf PID: 5438, Parent PID: 5432

General

Process Activities

Linux Analysis Report
killua.x86.elf