MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Socks5Systemz


Vendor detections: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97
SHA3-384 hash: 6027f58d429c55c7a2b773324ea84cecee68fdd3e1d4a86c7c322f71f88212d203c51d66649b2be694c3914829875a96
SHA1 hash: 48ab056e73438adc737a8f8bde7b8a1cfb89a73d
MD5 hash: 2e2d37352299d1a10242fae682820c7f
humanhash: september-sixteen-tennis-west
File name:silk.exe
Download: download sample
Signature Socks5Systemz
Create hunting rule
File size:3'678'523 bytes
First seen:2025-02-20 08:54:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'566 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 98304:3+8BC+aBONHS4zWI/OCqOz9BizZukdY81pTpkaV35XwndbVh:OwUDG15BBkBDT35Xw/h
Threatray 1'718 similar samples on MalwareBazaar
TLSH T1B506331683054E7DF33AAAB54D28D548197BDDD224B4A4CDF6DF8A2C07358E2C80BBE5
TrID 76.2% (.EXE) Inno Setup installer (107240/4/30)
10.0% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.4% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter skocherhan
Tags:exe Socks5Systemz


Avatar
skocherhan
http://91.240.118.49/forsale/silk.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
394
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
silk.exe
Verdict:
Malicious activity
Analysis date:
2025-02-20 08:59:03 UTC
Tags:
inno installer delphi
Link:
https://app.any.run/tasks/477368e8-be1a-4a67-91c3-90fc4f77ae40

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Application.Agent.AIQ.2330.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
98.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67b6ef5ba0fd713c335c0a11
Tags:
injection dropper virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Moving a recently created file
Creating a service
Enabling autorun for a service
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d2f174c5-01d5-4ed1-92b1-3da648acdc77
Result
Threat name:
Socks5Systemz
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1619783
Signature
Contains functionality to infect the boot sector
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Yara detected Socks5Systemz
Behaviour
Behavior Graph:
Download SVG
Score:
84%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97/
Threat name:
Win32.Trojan.Sockssystemz
Create hunting rule
Status:
Suspicious
First seen:
2025-02-20 08:55:14 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yc3tdnll4utzwgrljropfgdc4adkk4gu7lfaf2pxctpchb5rjwlq._file
Verdict:
malicious
Label(s):
socks5systemz
Create hunting rule
Similar samples:
374aeafac5287996cc4707e995ae96a6ead0971c29e09bb11a4f2e59c2f8b87a
Socks5Systemz
60747e80c3dece47b5c7dc3cfdcfe18abfd4cf12fe9b794749e068760dcb4847
Socks5Systemz
74fe2816f24bc6d472b2d5a71cad259a4c5c635c5f221c3f7e51ea52b49a336e
Socks5Systemz
917d90bdc61a625aa1bb34e598149df7e92833c3a230b9fa006b395eb0005d39
Socks5Systemz
9911fd0a27e8221ca6be055443e9dda8985e9f79c761efb6ecabaa095567ec71
Socks5Systemz
9f768badd73c47a68ceabde639429d3b53b40270186eae8bce35b2f2aaa8628d
Socks5Systemz
ec252c14b60754a9e280e0e4624077fcc3af03347f1a585b539f8d100777ad22
Socks5Systemz
error
Socks5Systemz
f8284e9f066236f5587f2e174b48c5f9b85e1619c9c733a15e98be42ecefdbe1
Socks5Systemz
+ 1'708 additional samples on MalwareBazaar
Result
Malware family:
socks5systemz
Create hunting rule
Score:
  10/10
Tags:
family:socks5systemz botnet discovery
Link:
https://tria.ge/reports/250220-kvjpka1paj/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Checks installed software on the system
Executes dropped EXE
Loads dropped DLL
Detect Socks5Systemz Payload
Socks5Systemz
Socks5systemz family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b026fe93-e152-4cf8-9b40-0e0275ac69b1
Unpacked files
SH256 hash:
c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97
MD5 hash:
2e2d37352299d1a10242fae682820c7f
SHA1 hash:
48ab056e73438adc737a8f8bde7b8a1cfb89a73d
Link:
https://www.unpac.me/results/c7879505-48f1-4a27-803c-70c56dac45c9/
SH256 hash:
3c3e5532d4d96f2c273326e8edb8055edfacd1791acf3dbc1739ae91ec826782
MD5 hash:
a8e04bd272192924a8fa34f792d021e5
SHA1 hash:
3f4ecc4fc986745d770aa56dfc61e709cdbb561d
Link:
https://www.unpac.me/results/c7879505-48f1-4a27-803c-70c56dac45c9/
SH256 hash:
77be65d8868d51ae0abbebbad69ad9cb2415d97eb571a9562f40af611f3d531c
MD5 hash:
d916d7b895b0edc2e32f6beed47d0398
SHA1 hash:
d5478ea1dba0f586ad59ce2efb5f0ba8b2924c86
Link:
https://www.unpac.me/results/c7879505-48f1-4a27-803c-70c56dac45c9/
SH256 hash:
44b8e6a310564338968158a1ed88c8535dece20acb06c5e22d87953c261dfed0
MD5 hash:
9c8886759e736d3f27674e0fff63d40a
SHA1 hash:
ceff6a7b106c3262d9e8496d2ab319821b100541
Link:
https://www.unpac.me/results/c7879505-48f1-4a27-803c-70c56dac45c9/
SH256 hash:
d93d2c8b57459bc18856aa7533b19c52a2e3e8e322dc5368ead5ac79bbeee0b6
MD5 hash:
4bde30a32ef9bd2023dbc8704a995ad8
SHA1 hash:
5dbcaf032ceb608e5842002d8c5f63404bfaa86b
Link:
https://www.unpac.me/results/c7879505-48f1-4a27-803c-70c56dac45c9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_VMProtect
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with VMProtect.
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:ScanStringsInsocks5systemz
Create hunting rule
Author:Byambaa@pubcert.mn
Description:Scans presence of the found strings using the in-house brute force method
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Socks5Systemz

Executable exe c0b731b56be5279b1a2b4c5cf29862e006a570d4faca02e9f714de2387b14d97

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3432094/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessA
advapi32.dll::OpenProcessToken
kernel32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::GetSystemInfo
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryA
kernel32.dll::CreateFileA
kernel32.dll::DeleteFileA
kernel32.dll::GetWindowsDirectoryA
kernel32.dll::GetFileAttributesA
kernel32.dll::RemoveDirectoryA
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageA
user32.dll::CreateWindowExA

Comments