Edit tour

Linux Analysis Report
fs_elf_64.elf

Overview

General Information

Sample name:	fs_elf_64.elf
Analysis ID:	1582395
MD5:	ff1e9d1fc459dd83333fd94dbe36229a
SHA1:	0e76f4c72295fe851b775dac8c49ec53108f1df6
SHA256:	bdcbe3391365cdff66b9084280eb9884df48bebf38295d2f4bd7273666d04fed
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	68
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Machine Learning detection for sample

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

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1582395
Start date and time:	2024-12-30 14:38:05 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 29s
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:	fs_elf_64.elf
Detection:	MAL
Classification:	mal68.linELF@0/0@0/0

Warnings

VT rate limit hit for: fs_elf_64.elf

Runtime Messages

Command:	/tmp/fs_elf_64.elf
PID:	6242
Exit Code:	134
Exit Code Info:	SIGABRT (6) Abort signal from abort
Killed:	False
Standard Output:
Standard Error:	fs_elf_64.elf: semtex.c:51: sheep: Assertion `!close(fd)' failed.

Process Tree

system is lnxubuntu20

fs_elf_64.elf (PID: 6242, Parent: 6161, MD5: ff1e9d1fc459dd83333fd94dbe36229a) Arguments: /tmp/fs_elf_64.elf

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
fs_elf_64.elf	Linux_Exploit_Intfour_0ca45cd3	unknown	unknown	0x1049:$a: 6D 28 63 6F 64 65 2C 20 31 30 32 34 2C 20 26 6E 65 65 64 6C 65

Memory Dumps

Source	Rule	Description	Author	Strings
6242.1.0000000000400000.0000000000402000.r-x.sdmp	Linux_Exploit_Intfour_0ca45cd3	unknown	unknown	0x1049:$a: 6D 28 63 6F 64 65 2C 20 31 30 32 34 2C 20 26 6E 65 65 64 6C 65

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: fs_elf_64.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: fs_elf_64.elf

ReversingLabs: Detection: 76%

Machine Learning detection for sample

Source: fs_elf_64.elf

Joe Sandbox ML: detected

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

System Summary

Malicious sample detected (through community Yara rule)

Source: fs_elf_64.elf, type: SAMPLE	Matched rule: Linux_Exploit_Intfour_0ca45cd3 Author: unknown
Source: 6242.1.0000000000400000.0000000000402000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Exploit_Intfour_0ca45cd3 Author: unknown

Source: fs_elf_64.elf, type: SAMPLE	Matched rule: Linux_Exploit_Intfour_0ca45cd3 reference_sample = 9d32c5447aa5182b4be66b7a283616cf531a2fd3ba3dde1bc363b24d8b22682f, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Exploit.Intfour, fingerprint = 8926a8cfd7f3adf29e399a945592063039b80dcc0545b133b453aaf198d31461, id = 0ca45cd3-089c-4d7f-9088-dc972c14bd9d, last_modified = 2021-09-16
Source: 6242.1.0000000000400000.0000000000402000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Exploit_Intfour_0ca45cd3 reference_sample = 9d32c5447aa5182b4be66b7a283616cf531a2fd3ba3dde1bc363b24d8b22682f, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Exploit.Intfour, fingerprint = 8926a8cfd7f3adf29e399a945592063039b80dcc0545b133b453aaf198d31461, id = 0ca45cd3-089c-4d7f-9088-dc972c14bd9d, last_modified = 2021-09-16

Source: classification engine

Classification label: mal68.linELF@0/0@0/0

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	Direct Volume Access	OS Credential Dumping	System Service 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
fs_elf_64.elf	76%	ReversingLabs	Linux.Exploit.CVE-2013-2094
fs_elf_64.elf	100%	Avira	EXP/Agent.cvne
fs_elf_64.elf	100%	Joe Sandbox ML

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	arm5.elf	Get hash	malicious	Unknown	Browse
	tftp.elf	Get hash	malicious	Unknown	Browse
	i.elf	Get hash	malicious	Unknown	Browse
	xmrig.elf	Get hash	malicious	Xmrig	Browse
	vcimanagement.x86.elf	Get hash	malicious	Mirai	Browse
	vcimanagement.sh4.elf	Get hash	malicious	Mirai	Browse
	Aqua.m68k.elf	Get hash	malicious	Mirai	Browse
	botx.arm5.elf	Get hash	malicious	Mirai	Browse
	i.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Mirai, Moobot	Browse
91.189.91.42	arm5.elf	Get hash	malicious	Unknown	Browse
	tftp.elf	Get hash	malicious	Unknown	Browse
	i.elf	Get hash	malicious	Unknown	Browse
	xmrig.elf	Get hash	malicious	Xmrig	Browse
	vcimanagement.x86.elf	Get hash	malicious	Mirai	Browse
	vcimanagement.m68k.elf	Get hash	malicious	Mirai	Browse
	vcimanagement.sh4.elf	Get hash	malicious	Mirai	Browse
	Aqua.m68k.elf	Get hash	malicious	Mirai	Browse
	botx.arm5.elf	Get hash	malicious	Mirai	Browse
	i.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	xmrig.elf	Get hash	malicious	Xmrig	Browse	91.189.91.42
	vcimanagement.x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	vcimanagement.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	vcimanagement.sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Aqua.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	botx.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	xmrig.elf	Get hash	malicious	Xmrig	Browse	91.189.91.42
	vcimanagement.x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	vcimanagement.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	vcimanagement.sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Aqua.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	botx.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	tftp.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	xmrig.elf	Get hash	malicious	Xmrig	Browse	109.202.202.202
	vcimanagement.x86.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	vcimanagement.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	vcimanagement.sh4.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	Aqua.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	botx.arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	i.elf	Get hash	malicious	Unknown	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 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.15, BuildID[sha1]=3dee735e1f8dc19266660eb2b50e502639bef080, not stripped
Entropy (8bit):	3.2970994402840748
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 49.77% ELF Executable and Linkable format (generic) (4004/1) 49.46% Lumena CEL bitmap (63/63) 0.78%
File name:	fs_elf_64.elf
File size:	13'413 bytes
MD5:	ff1e9d1fc459dd83333fd94dbe36229a
SHA1:	0e76f4c72295fe851b775dac8c49ec53108f1df6
SHA256:	bdcbe3391365cdff66b9084280eb9884df48bebf38295d2f4bd7273666d04fed
SHA512:	4b538433fc13d579e0640af84cc653ffe8df318e1bec2cbe5aa5e3acfe1ee99c1e04dddc515b3ecdb0d2d9b58ae5d418a3c33f3047e78cc2eb24db407d0b2011
SSDEEP:	96:GoYFTWgbSw0rNlVYJzde7sa1Ip2/boYOqMvMpJ+JTfWPrSvdy00KDH8PhXNCM0zU:GlnLQl/7sa1h0HqM0sTfyrSc98r89R
TLSH:	E452744BE6D2CE7FC4E94338804743317273E8749B52A7331644A5B95E337881E6EA5A
File Content Preview:	.ELF..............>.....P.@.....@........!..........@.8...@.............@.......@.@.....@.@.....................................8.......8.@.....8.@...............................................@.......@....................... .......................`....

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400850
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	9
Section Header Offset:	8624
Section Header Size:	64
Number of Section Headers:	31
Header String Table Index:	28

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Info	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0	0
.interp	PROGBITS	0x400238	0x238	0x1c	0x0	0x2	A	0	0	1
.note.ABI-tag	NOTE	0x400254	0x254	0x20	0x0	0x2	A	0	0	4
.note.gnu.build-id	NOTE	0x400274	0x274	0x24	0x0	0x2	A	0	0	4
.hash	HASH	0x400298	0x298	0x58	0x4	0x2	A	6	0	8
.gnu.hash	GNU_HASH	0x4002f0	0x2f0	0x1c	0x0	0x2	A	6	0	8
.dynsym	DYNSYM	0x400310	0x310	0x198	0x18	0x2	A	7	1	8
.dynstr	STRTAB	0x4004a8	0x4a8	0xb6	0x0	0x2	A	0	0	1
.gnu.version	VERSYM	0x40055e	0x55e	0x22	0x2	0x2	A	6	0	2
.gnu.version_r	VERNEED	0x400580	0x580	0x30	0x0	0x2	A	7	1	8
.rela.dyn	RELA	0x4005b0	0x5b0	0x18	0x18	0x2	A	6	0	8
.rela.plt	RELA	0x4005c8	0x5c8	0x168	0x18	0x2	A	6	13	8
.init	PROGBITS	0x400730	0x730	0x18	0x0	0x6	AX	0	0	4
.plt	PROGBITS	0x400748	0x748	0x100	0x10	0x6	AX	0	0	4
.text	PROGBITS	0x400850	0x850	0x6b8	0x0	0x6	AX	0	0	16
.fini	PROGBITS	0x400f08	0xf08	0xe	0x0	0x6	AX	0	0	4
.rodata	PROGBITS	0x400f18	0xf18	0x169	0x0	0x2	A	0	0	8
.eh_frame_hdr	PROGBITS	0x401084	0x1084	0x34	0x0	0x2	A	0	0	4
.eh_frame	PROGBITS	0x4010b8	0x10b8	0xd4	0x0	0x2	A	0	0	8
.ctors	PROGBITS	0x601e18	0x1e18	0x10	0x0	0x3	WA	0	0	8
.dtors	PROGBITS	0x601e28	0x1e28	0x10	0x0	0x3	WA	0	0	8
.jcr	PROGBITS	0x601e38	0x1e38	0x8	0x0	0x3	WA	0	0	8
.dynamic	DYNAMIC	0x601e40	0x1e40	0x1a0	0x10	0x3	WA	7	0	8
.got	PROGBITS	0x601fe0	0x1fe0	0x8	0x8	0x3	WA	0	0	8
.got.plt	PROGBITS	0x601fe8	0x1fe8	0x90	0x8	0x3	WA	0	0	8
.data	PROGBITS	0x602078	0x2078	0x10	0x0	0x3	WA	0	0	8
.bss	NOBITS	0x602088	0x2088	0x10	0x0	0x3	WA	0	0	8
.comment	PROGBITS	0x0	0x2088	0x25	0x1	0x30	MS	0	0	1
.shstrtab	STRTAB	0x0	0x20ad	0xfe	0x0	0x0		0	0	1
.symtab	SYMTAB	0x0	0x2970	0x7b0	0x18	0x0		30	49	8
.strtab	STRTAB	0x0	0x3120	0x345	0x0	0x0		0	0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Prog Interpreter	Section Mappings
PHDR	0x40	0x400040	0x400040	0x1f8	0x1f8	1.8390	0x5	R E	0x8
INTERP	0x238	0x400238	0x400238	0x1c	0x1c	3.9408	0x4	R	0x1	/lib64/ld-linux-x86-64.so.2	.interp
LOAD	0x0	0x400000	0x400000	0x118c	0x118c	5.0836	0x5	R E	0x200000		.interp .note.ABI-tag .note.gnu.build-id .hash .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rela.dyn .rela.plt .init .plt .text .fini .rodata .eh_frame_hdr .eh_frame
LOAD	0x1e18	0x601e18	0x601e18	0x270	0x280	1.7675	0x6	RW	0x200000		.ctors .dtors .jcr .dynamic .got .got.plt .data .bss
DYNAMIC	0x1e40	0x601e40	0x601e40	0x1a0	0x1a0	1.5207	0x6	RW	0x8		.dynamic
NOTE	0x254	0x400254	0x400254	0x44	0x44	3.4630	0x4	R	0x4		.note.ABI-tag .note.gnu.build-id
GNU_EH_FRAME	0x1084	0x401084	0x401084	0x34	0x34	3.2109	0x4	R	0x4		.eh_frame_hdr
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8
GNU_RELRO	0x1e18	0x601e18	0x601e18	0x1e8	0x1e8	1.5375	0x4	R	0x1		.ctors .dtors .jcr .dynamic .got

Dynamic Tags

Type	Meta	Value	Tag
DT_NEEDED	sharedlib	libc.so.6	0x1
DT_INIT	value	0x400730	0xc
DT_FINI	value	0x400f08	0xd
DT_HASH	value	0x400298	0x4
DT_GNU_HASH	value	0x4002f0	0x6ffffef5
DT_STRTAB	value	0x4004a8	0x5
DT_SYMTAB	value	0x400310	0x6
DT_STRSZ	bytes	182	0xa
DT_SYMENT	bytes	24	0xb
DT_DEBUG	value	0x0	0x15
DT_PLTGOT	value	0x601fe8	0x3
DT_PLTRELSZ	bytes	360	0x2
DT_PLTREL	pltrel	DT_RELA	0x14
DT_JMPREL	value	0x4005c8	0x17
DT_RELA	value	0x4005b0	0x7
DT_RELASZ	bytes	24	0x8
DT_RELAENT	bytes	24	0x9
DT_VERNEED	value	0x400580	0x6ffffffe
DT_VERNEEDNUM	value	1	0x6fffffff
DT_VERSYM	value	0x40055e	0x6ffffff0
DT_NULL	value	0x0	0x0

Symbols

Name	Version Info Name	Version Info File Name	Section Name	Value	Size	Symbol Type	Symbol Bind	Symbol Visibility	Ndx
			.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__assert_fail	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__gmon_start__			.dynsym	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__libc_start_main	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__printf_chk	GLIBC_2.3.4	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
close	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
execl	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getgid	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getuid	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memcpy	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmem	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
mmap	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setresgid	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setresuid	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setuid	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
syscall	GLIBC_2.2.5	libc.so.6	.dynsym	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
			.symtab	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
	GLIBC_2.2.5	libc.so.6	.symtab	0x400238	0	SECTION	<unknown>	DEFAULT	1
	GLIBC_2.2.5	libc.so.6	.symtab	0x400254	0	SECTION	<unknown>	DEFAULT	2
	GLIBC_2.2.5	libc.so.6	.symtab	0x400274	0	SECTION	<unknown>	DEFAULT	3
			.symtab	0x400298	0	SECTION	<unknown>	DEFAULT	4
	GLIBC_2.2.5	libc.so.6	.symtab	0x4002f0	0	SECTION	<unknown>	DEFAULT	5
	GLIBC_2.3.4	libc.so.6	.symtab	0x400310	0	SECTION	<unknown>	DEFAULT	6
	GLIBC_2.2.5	libc.so.6	.symtab	0x4004a8	0	SECTION	<unknown>	DEFAULT	7
	GLIBC_2.2.5	libc.so.6	.symtab	0x40055e	0	SECTION	<unknown>	DEFAULT	8
	GLIBC_2.2.5	libc.so.6	.symtab	0x400580	0	SECTION	<unknown>	DEFAULT	9
	GLIBC_2.2.5	libc.so.6	.symtab	0x4005b0	0	SECTION	<unknown>	DEFAULT	10
	GLIBC_2.2.5	libc.so.6	.symtab	0x4005c8	0	SECTION	<unknown>	DEFAULT	11
	GLIBC_2.2.5	libc.so.6	.symtab	0x400730	0	SECTION	<unknown>	DEFAULT	12
	GLIBC_2.2.5	libc.so.6	.symtab	0x400748	0	SECTION	<unknown>	DEFAULT	13
	GLIBC_2.2.5	libc.so.6	.symtab	0x400850	0	SECTION	<unknown>	DEFAULT	14
	GLIBC_2.2.5	libc.so.6	.symtab	0x400f08	0	SECTION	<unknown>	DEFAULT	15
	GLIBC_2.2.5	libc.so.6	.symtab	0x400f18	0	SECTION	<unknown>	DEFAULT	16
			.symtab	0x401084	0	SECTION	<unknown>	DEFAULT	17
			.symtab	0x4010b8	0	SECTION	<unknown>	DEFAULT	18
			.symtab	0x601e18	0	SECTION	<unknown>	DEFAULT	19
			.symtab	0x601e28	0	SECTION	<unknown>	DEFAULT	20
			.symtab	0x601e38	0	SECTION	<unknown>	DEFAULT	21
			.symtab	0x601e40	0	SECTION	<unknown>	DEFAULT	22
			.symtab	0x601fe0	0	SECTION	<unknown>	DEFAULT	23
			.symtab	0x601fe8	0	SECTION	<unknown>	DEFAULT	24
			.symtab	0x602078	0	SECTION	<unknown>	DEFAULT	25
			.symtab	0x602088	0	SECTION	<unknown>	DEFAULT	26
			.symtab	0x0	0	SECTION	<unknown>	DEFAULT	27
_DYNAMIC			.symtab	0x601e40	0	OBJECT	<unknown>	HIDDEN	22
_GLOBAL_OFFSET_TABLE_			.symtab	0x601fe8	0	OBJECT	<unknown>	HIDDEN	24
_IO_stdin_used			.symtab	0x400f18	4	OBJECT	<unknown>	DEFAULT	16
_Jv_RegisterClasses			.symtab	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__CTOR_END__			.symtab	0x601e20	0	OBJECT	<unknown>	DEFAULT	19
__CTOR_LIST__			.symtab	0x601e18	0	OBJECT	<unknown>	DEFAULT	19
__DTOR_END__			.symtab	0x601e30	0	OBJECT	<unknown>	HIDDEN	20
__DTOR_LIST__			.symtab	0x601e28	0	OBJECT	<unknown>	DEFAULT	20
__FRAME_END__			.symtab	0x401188	0	OBJECT	<unknown>	DEFAULT	18
__JCR_END__			.symtab	0x601e38	0	OBJECT	<unknown>	DEFAULT	21
__JCR_LIST__			.symtab	0x601e38	0	OBJECT	<unknown>	DEFAULT	21
__PRETTY_FUNCTION__.5274			.symtab	0x40107b	6	OBJECT	<unknown>	DEFAULT	16
__PRETTY_FUNCTION__.5295			.symtab	0x401076	5	OBJECT	<unknown>	DEFAULT	16
__assert_fail@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__bss_start			.symtab	0x602088	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
__data_start			.symtab	0x602078	0	NOTYPE	<unknown>	DEFAULT	25
__do_global_ctors_aux			.symtab	0x400ed0	0	FUNC	<unknown>	DEFAULT	14
__do_global_dtors_aux			.symtab	0x4008a0	0	FUNC	<unknown>	DEFAULT	14
__dso_handle			.symtab	0x602080	0	OBJECT	<unknown>	HIDDEN	25
__gmon_start__			.symtab	0x0	0	NOTYPE	<unknown>	DEFAULT	SHN_UNDEF
__init_array_end			.symtab	0x601e14	0	NOTYPE	<unknown>	HIDDEN	19
__init_array_start			.symtab	0x601e14	0	NOTYPE	<unknown>	HIDDEN	19
__libc_csu_fini			.symtab	0x400e30	2	FUNC	<unknown>	DEFAULT	14
__libc_csu_init			.symtab	0x400e40	137	FUNC	<unknown>	DEFAULT	14
__libc_start_main@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
__printf_chk@@GLIBC_2.3.4			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
_edata			.symtab	0x602088	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_end			.symtab	0x602098	0	NOTYPE	<unknown>	DEFAULT	SHN_ABS
_fini			.symtab	0x400f08	0	FUNC	<unknown>	DEFAULT	15
_init			.symtab	0x400730	0	FUNC	<unknown>	DEFAULT	12
_start			.symtab	0x400850	0	FUNC	<unknown>	DEFAULT	14
call_gmon_start			.symtab	0x40087c	0	FUNC	<unknown>	DEFAULT	14
close@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
completed.7382			.symtab	0x602088	1	OBJECT	<unknown>	DEFAULT	26
crtstuff.c			.symtab	0x0	0	FILE	<unknown>	DEFAULT	SHN_ABS
crtstuff.c			.symtab	0x0	0	FILE	<unknown>	DEFAULT	SHN_ABS
data_start			.symtab	0x602078	0	NOTYPE	<unknown>	DEFAULT	25
dtor_idx.7384			.symtab	0x602090	8	OBJECT	<unknown>	DEFAULT	26
execl@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
frame_dummy			.symtab	0x400910	0	FUNC	<unknown>	DEFAULT	14
fuck			.symtab	0x400940	293	FUNC	<unknown>	DEFAULT	14
getgid@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
getuid@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
main			.symtab	0x400af0	830	FUNC	<unknown>	DEFAULT	14
memcpy@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memmem@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
memset@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
mmap@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
semtex.c			.symtab	0x0	0	FILE	<unknown>	DEFAULT	SHN_ABS
setresgid@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setresuid@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
setuid@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF
sheep			.symtab	0x400a70	117	FUNC	<unknown>	DEFAULT	14
syscall@@GLIBC_2.2.5			.symtab	0x0	0	FUNC	<unknown>	DEFAULT	SHN_UNDEF

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 30, 2024 14:38:52.096486092 CET	43928	443	192.168.2.23	91.189.91.42
Dec 30, 2024 14:38:57.471728086 CET	42836	443	192.168.2.23	91.189.91.43
Dec 30, 2024 14:38:58.751697063 CET	42516	80	192.168.2.23	109.202.202.202
Dec 30, 2024 14:39:13.597512960 CET	43928	443	192.168.2.23	91.189.91.42
Dec 30, 2024 14:39:23.836076021 CET	42836	443	192.168.2.23	91.189.91.43
Dec 30, 2024 14:39:29.979182959 CET	42516	80	192.168.2.23	109.202.202.202
Dec 30, 2024 14:39:54.552346945 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: fs_elf_64.elf PID: 6242, Parent PID: 6161

General

Start time (UTC):	13:38:50
Start date (UTC):	30/12/2024
Path:	/tmp/fs_elf_64.elf
Arguments:	/tmp/fs_elf_64.elf
File size:	13413 bytes
MD5 hash:	ff1e9d1fc459dd83333fd94dbe36229a

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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report fs_elf_64.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

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

Dynamic Tags

Symbols

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: fs_elf_64.elf PID: 6242, Parent PID: 6161

General

Chronological Activities

Linux Analysis Report
fs_elf_64.elf