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Linux Analysis Report
CwJ4wKfQcgGNj

Overview

General Information

Sample name:	CwJ4wKfQcgGNj
Analysis ID:	1560410
MD5:	379dca5f10a3967381ba47e47a4a20ed
SHA1:	6e069ade70cdfed84d0acbffc71f45e9f44d0521
SHA256:	91f66ba1ad49d3062afdcc80e54da0807207d80a1b539edcdbd6e1bf99e7a2ca

Detection

Score:	20
Range:	0 - 100
Whitelisted:	false

Signatures

Sample deletes itself

Sample has stripped symbol table

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1560410
Start date and time:	2024-11-21 19:21:54 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 4s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 16.04 x64 (Kernel 4.4.0-116, Firefox 88.0, Document Viewer 3.18.2, LibreOffice 5.1.6.2, OpenJDK 1.8.0_171)
Analysis Mode:	default
Sample name:	CwJ4wKfQcgGNj
Detection:	SUS
Classification:	sus20.evad.lin@0/0@0/0

Warnings

VT rate limit hit for: CwJ4wKfQcgGNj

Runtime Messages

Command:	/tmp/CwJ4wKfQcgGNj
PID:	4698
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu1

CwJ4wKfQcgGNj (PID: 4698, Parent: 4601, MD5: unknown) Arguments: /tmp/CwJ4wKfQcgGNj

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

Source: CwJ4wKfQcgGNj	String found in binary or memory: http:///cargo/registry/src/index.crates.io-6f17d22bba15001f/reqwest-0.11.27/src/proxy.rssocks5socks5
Source: CwJ4wKfQcgGNj	String found in binary or memory: https://docs.rs/getrandom#nodejs-es-module-supportCalling

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: sus20.evad.lin@0/0@0/0

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/CwJ4wKfQcgGNj (PID: 4698)

File: /tmp/CwJ4wKfQcgGNj

Jump to behavior

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	System Service Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features

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

⊘No Antivirus matches

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http:///cargo/registry/src/index.crates.io-6f17d22bba15001f/reqwest-0.11.27/src/proxy.rssocks5socks5	CwJ4wKfQcgGNj	false		unknown
https://docs.rs/getrandom#nodejs-es-module-supportCalling	CwJ4wKfQcgGNj	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

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, stripped
Entropy (8bit):	6.451551667992499
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	CwJ4wKfQcgGNj
File size:	1'381'524 bytes
MD5:	379dca5f10a3967381ba47e47a4a20ed
SHA1:	6e069ade70cdfed84d0acbffc71f45e9f44d0521
SHA256:	91f66ba1ad49d3062afdcc80e54da0807207d80a1b539edcdbd6e1bf99e7a2ca
SHA512:	d79680315f1b4f17b4f7ff19a68fabec936789cf563ceddebeb96b49bfe66bdda0bf8438feb098802da4253e12599a25d3d207a99ae8f00ed64cd87f22fae751
SSDEEP:	24576:x4D8SfzvMfCv/G4NRRf1NxrCURCFNGGO3Qn652wOPn+mE:+D8SbMfCHZXvxrxRCFNdOKagJE
TLSH:	EC556A05F940DA6BC53362B4964FE332C9302A3457238B87BF596C347A2F791AF28756
File Content Preview:	.ELF....................a...4...........4. ...(.....................$...$....................s...s..$-..\|<...................&...&..L...............P.td.z...........Y...Y..........Q.td............................R.td.....s...s..(,..(,.....................

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:	0x804be61
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	6
Section Header Offset:	1380804
Section Header Size:	40
Number of Section Headers:	18
Header String Table Index:	17

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x80480f4	0xf4	0x7	0x0	0x6	AX	1
.text	PROGBITS	0x8048100	0x100	0xd7873	0x0	0x6	AX	16
.fini	PROGBITS	0x811f973	0xd7973	0x7	0x0	0x6	AX	1
.rodata	PROGBITS	0x811f980	0xd7980	0x5008c	0x0	0x2	A	32
.eh_frame_hdr	PROGBITS	0x816fa0c	0x127a0c	0x5914	0x0	0x2	A	4
.gcc_except_table	PROGBITS	0x8175320	0x12d320	0xf04	0x0	0x2	A	4
.eh_frame	PROGBITS	0x81773d8	0x12e3d8	0x1b2dc	0x0	0x3	WA	4
.tdata	PROGBITS	0x81926b4	0x1496b4	0x4c	0x0	0x403	WAT	4
.tbss	NOBITS	0x8192700	0x149700	0x40	0x0	0x403	WAT	4
.init_array	INIT_ARRAY	0x8192700	0x149700	0x4	0x4	0x3	WA	4
.fini_array	FINI_ARRAY	0x8192704	0x149704	0x4	0x4	0x3	WA	4
.data.rel.ro	PROGBITS	0x8192708	0x149708	0x7884	0x0	0x3	WA	8
.got	PROGBITS	0x8199f8c	0x150f8c	0x74	0x4	0x3	WA	4
.data	PROGBITS	0x819a000	0x151000	0xfc	0x0	0x3	WA	32
.bss	NOBITS	0x819a100	0x1510fc	0xf54	0x0	0x3	WA	32
.comment	PROGBITS	0x0	0x1510fc	0x2b	0x1	0x30	MS	1
.shstrtab	STRTAB	0x0	0x151127	0x9a	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0x12e224	0x12e224	6.5023	0x5	R E	0x1000	.init .text .fini .rodata .eh_frame_hdr .gcc_except_table
LOAD	0x12e3d8	0x81773d8	0x81773d8	0x22d24	0x23c7c	5.1519	0x6	RW	0x1000	.eh_frame .tdata .tbss .init_array .fini_array .data.rel.ro .got .data .bss
TLS	0x1496b4	0x81926b4	0x81926b4	0x4c	0x8c	0.2399	0x4	R	0x4	.tdata .tbss
GNU_EH_FRAME	0x127a0c	0x816fa0c	0x816fa0c	0x5914	0x5914	6.2214	0x4	R	0x4	.eh_frame_hdr
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x10
GNU_RELRO	0x12e3d8	0x81773d8	0x81773d8	0x22c28	0x22c28	5.1546	0x4	R	0x1	.eh_frame .tdata .tbss .init_array .fini_array .data.rel.ro .got

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: CwJ4wKfQcgGNj PID: 4698, Parent PID: 4601

General

Start time (UTC):	18:22:29
Start date (UTC):	21/11/2024
Path:	/tmp/CwJ4wKfQcgGNj
Arguments:	/tmp/CwJ4wKfQcgGNj
File size:	0 bytes
MD5 hash:	unknown

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report CwJ4wKfQcgGNj

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

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

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

System Behavior

Analysis Process: CwJ4wKfQcgGNj PID: 4698, Parent PID: 4601

General

Chronological Activities

Linux Analysis Report
CwJ4wKfQcgGNj