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Linux Analysis Report
nshmips.elf

Overview

General Information

Sample name:	nshmips.elf
Analysis ID:	1580345
MD5:	5d42c3e2350b8deb6f66c2244532408b
SHA1:	2120cc63f8957f88e537d9d5e4e7f824ac4e06de
SHA256:	a7ab0411aa28088b6c6a8ae39b7542499ba1e8d7aa5f59e564bd8f450fd1c841
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Executes the "rm" command used to delete files or directories

Sample has stripped symbol table

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1580345
Start date and time:	2024-12-24 11:02:07 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 27s
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:	nshmips.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Warnings

VT rate limit hit for: nshmips.elf

Runtime Messages

Command:	/tmp/nshmips.elf
PID:	6233
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6221, Parent: 4331)

rm (PID: 6221, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2

dash New Fork (PID: 6222, Parent: 4331)

rm (PID: 6222, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2

nshmips.elf (PID: 6233, Parent: 6155, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/nshmips.elf

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: nshmips.elf

ReversingLabs: Detection: 15%

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6221)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2			Jump to behavior
Source: /usr/bin/dash (PID: 6222)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2			Jump to behavior

Source: /tmp/nshmips.elf (PID: 6233)

Queries kernel information via 'uname':

Jump to behavior

Source: nshmips.elf, 6233.1.000055929e364000.000055929e3eb000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mips
Source: nshmips.elf, 6233.1.000055929e364000.000055929e3eb000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips
Source: nshmips.elf, 6233.1.00007ffe0ec7e000.00007ffe0ec9f000.rw-.sdmp	Binary or memory string: -x86_64/usr/bin/qemu-mips/tmp/nshmips.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/nshmips.elf
Source: nshmips.elf, 6233.1.00007ffe0ec7e000.00007ffe0ec9f000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips

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	1 File Deletion	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	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	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

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
nshmips.elf	16%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

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	ASN	ASN Name	Malicious
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	nsharm5.elf	Get hash	malicious	Unknown	Browse
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	hmips.elf	Get hash	malicious	Unknown	Browse
	sparc.nn.elf	Get hash	malicious	Okiru	Browse
	nsharm6.elf	Get hash	malicious	Unknown	Browse
	arm7.nn-20241224-0652.elf	Get hash	malicious	Mirai, Okiru	Browse
	mips.nn.elf	Get hash	malicious	Okiru	Browse
91.189.91.42	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	nsharm5.elf	Get hash	malicious	Unknown	Browse
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	hmips.elf	Get hash	malicious	Unknown	Browse
	sparc.nn.elf	Get hash	malicious	Okiru	Browse
	nsharm6.elf	Get hash	malicious	Unknown	Browse
	arm7.nn-20241224-0652.elf	Get hash	malicious	Mirai, Okiru	Browse
	mips.nn.elf	Get hash	malicious	Okiru	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	Mozi.m.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	nsharm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	hmips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sparc.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	nsharm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm7.nn-20241224-0652.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	mips.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
CANONICAL-ASGB	Mozi.m.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	nsharm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	hmips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sparc.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	nsharm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm7.nn-20241224-0652.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	mips.nn.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
INIT7CH	Mozi.m.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	nsharm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse	109.202.202.202
	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	hmips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sparc.nn.elf	Get hash	malicious	Okiru	Browse	109.202.202.202
	nsharm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm7.nn-20241224-0652.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	mips.nn.elf	Get hash	malicious	Okiru	Browse	109.202.202.202

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 MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.391647228423639
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	nshmips.elf
File size:	89'100 bytes
MD5:	5d42c3e2350b8deb6f66c2244532408b
SHA1:	2120cc63f8957f88e537d9d5e4e7f824ac4e06de
SHA256:	a7ab0411aa28088b6c6a8ae39b7542499ba1e8d7aa5f59e564bd8f450fd1c841
SHA512:	dedb1185c7d26afd16c6e76ee524d5cc6d79873d3e0f8fbde1c12cc742163ccf284aaf43f708b8932e542fe969b19984b13da9dd1f3e0797fbf7f33a7d6af157
SSDEEP:	1536:NtVkRVfj1aSY4W1HW1yA1XfmIqRHp2W7SBleUIj3kSai8i:NgHa/tIqD27BkkSb8i
TLSH:	5E93E91E6E719FBDF66D823447B78A31A35923D627E0C685D2ACD2101F7024E581FFA4
File Content Preview:	.ELF.....................@.`...4..Y......4. ...(.............@...@....F...F...............P..EP..EP....x..ZH........dt.Q............................<...'..L...!'.......................<...'..(...!... ....'9... ......................<...'......!........'9.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	MIPS R3000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400260
Flags:	0x1007
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	88540
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x8c	0x0	0x6	AX	4
.text	PROGBITS	0x400120	0x120	0x12dc0	0x0	0x6	AX	16
.fini	PROGBITS	0x412ee0	0x12ee0	0x5c	0x0	0x6	AX	4
.rodata	PROGBITS	0x412f40	0x12f40	0x1750	0x0	0x2	A	16
.ctors	PROGBITS	0x455000	0x15000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x455008	0x15008	0x8	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x455014	0x15014	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x455020	0x15020	0x3c8	0x0	0x3	WA	16
.got	PROGBITS	0x4553f0	0x153f0	0x588	0x4	0x10000003	WAp	16
.sbss	NOBITS	0x455978	0x15978	0x1c	0x0	0x10000003	WAp	4
.bss	NOBITS	0x4559a0	0x15978	0x50a8	0x0	0x3	WA	16
.mdebug.abi32	PROGBITS	0xc06	0x15978	0x0	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x15978	0x64	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x14690	0x14690	5.5245	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x15000	0x455000	0x455000	0x978	0x5a48	3.7987	0x6	RW	0x10000	.ctors .dtors .data.rel.ro .data .got .sbss .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 24, 2024 11:02:52.860290051 CET	43928	443	192.168.2.23	91.189.91.42
Dec 24, 2024 11:02:58.491460085 CET	42836	443	192.168.2.23	91.189.91.43
Dec 24, 2024 11:02:59.515367031 CET	42516	80	192.168.2.23	109.202.202.202
Dec 24, 2024 11:03:12.825447083 CET	43928	443	192.168.2.23	91.189.91.42
Dec 24, 2024 11:03:25.111608982 CET	42836	443	192.168.2.23	91.189.91.43
Dec 24, 2024 11:03:29.206970930 CET	42516	80	192.168.2.23	109.202.202.202
Dec 24, 2024 11:03:53.779416084 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6221, Parent PID: 4331

General

Start time (UTC):	10:02:42
Start date (UTC):	24/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6221, Parent PID: 4331

General

Start time (UTC):	10:02:42
Start date (UTC):	24/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6222, Parent PID: 4331

General

Start time (UTC):	10:02:42
Start date (UTC):	24/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6222, Parent PID: 4331

General

Start time (UTC):	10:02:42
Start date (UTC):	24/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.lTCyMdGSee /tmp/tmp.WQGCbP7KSW /tmp/tmp.HbFgpbcSI2
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: nshmips.elf PID: 6233, Parent PID: 6155

General

Start time (UTC):	10:02:51
Start date (UTC):	24/12/2024
Path:	/tmp/nshmips.elf
Arguments:	/tmp/nshmips.elf
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
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 employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, 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

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Warning!

Linux Analysis Report nshmips.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

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

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: dash PID: 6221, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6221, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6222, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6222, Parent PID: 4331

General

Chronological Activities

Analysis Process: nshmips.elf PID: 6233, Parent PID: 6155

General

Chronological Activities

Linux Analysis Report
nshmips.elf