MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c. 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: 15


Intelligence 15 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
SHA3-384 hash: 5277009320477430cfc9ef9bfc8230c7d4f1ca78009b550979f933a7878bc5c3e8ff0a00406d07ea2baf1bf4d85d6842
SHA1 hash: 10b09c65d81dcc2c1230a2ad39a32e8fea42ba6a
MD5 hash: 66c625cef9aa371ac55a64c94691891c
humanhash: happy-twelve-oven-berlin
File name:66c625cef9aa371ac55a64c94691891c.exe
Download: download sample
Signature Socks5Systemz
Create hunting rule
File size:445'440 bytes
First seen:2024-10-16 00:45:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f8250be4329d3243c57b4a0ef0e0e955 (2 x Socks5Systemz)
ssdeep 6144:AfVdcFmfL/4eNwXKPD0olLV1P83S6EbINbGaktafk7DA+L:Unf74eNwXKtV1iS6EbI4/tlD
Threatray 2'313 similar samples on MalwareBazaar
TLSH T1AD94AF9262A1FCE0F916463D8D2ACEE436EDFC718E186A6732987E1F1C711E2D163711
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 030903230a123100 (1 x Socks5Systemz)
Reporter abuse_ch
Tags:exe Socks5Systemz


Avatar
abuse_ch
Socks5Systemz C2:
http://91.211.248.13/316ea06a752c4625.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://91.211.248.13/316ea06a752c4625.php https://threatfox.abuse.ch/ioc/1336784/

Intelligence

File Origin
# of uploads :
1
# of downloads :
436
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
66c625cef9aa371ac55a64c94691891c.exe
Verdict:
Malicious activity
Analysis date:
2024-10-16 00:46:58 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/a36c7d3a-b50f-4eb8-a643-1c33fa3b9119

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670f0ccb1d4ef219fa632952
Tags:
Phishing Hype Onli
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc
Link:
https://www.filescan.io/uploads/670f0cca86f9fbacf7a0f2b7/reports/178cbe5a-a0a2-4fdd-b3f3-2e2bc06b552d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/db66bf5c-7f18-4121-89ba-ea8d97c944a0
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1534639
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1534639 Sample: XXT4sOOJjk.exe Startdate: 16/10/2024 Architecture: WINDOWS Score: 100 23 volisc.biz 2->23 25 tnc-corp.ru 2->25 27 2 other IPs or domains 2->27 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 6 other signatures 2->47 7 XXT4sOOJjk.exe 2->7         started        10 bvtrbgt 2->10         started        12 bvtrbgt 2->12         started        signatures3 process4 signatures5 49 Detected unpacking (changes PE section rights) 7->49 51 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->51 53 Maps a DLL or memory area into another process 7->53 55 Switches to a custom stack to bypass stack traces 7->55 14 explorer.exe 67 3 7->14 injected 57 Antivirus detection for dropped file 10->57 59 Machine Learning detection for dropped file 10->59 61 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->61 63 Checks if the current machine is a virtual machine (disk enumeration) 12->63 65 Creates a thread in another existing process (thread injection) 12->65 process6 dnsIp7 29 130.204.29.121, 54815, 64134, 64135 IBGCBG Bulgaria 14->29 31 tnc-corp.ru 63.143.98.185, 49736, 54811, 54812 DIG001JM Jamaica 14->31 19 C:\Users\user\AppData\Roaming\bvtrbgt, PE32 14->19 dropped 21 C:\Users\user\...\bvtrbgt:Zone.Identifier, ASCII 14->21 dropped 33 System process connects to network (likely due to code injection or exploit) 14->33 35 Benign windows process drops PE files 14->35 37 Deletes itself after installation 14->37 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->39 file8 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqjzk6n5fqe7up4hnqk3as7dhpjf4xcsj63iovlxogqh5gpcfooa._file
Verdict:
malicious
Label(s):
shellcode_loader_002
Create hunting rule
smokeloader
Create hunting rule
Similar samples:
0cf8ad6b4b1a25137fb42e0d831386e514620c851f782e37ebbd0d68105eb3d1
Socks5Systemz
5d2e0f8cc9eb2b09f11c0e90303eafd9bf4593426cdc0bc649e074a1ad913247
Socks5Systemz
71e552270361997f7b42b4ffa227ebd6a791948bfed757e61f2c3c7390bacaa3
Socks5Systemz
c2647db7431c0ad5d159b8630e17a5f97a3ed537671d61e1a55634d10b59fb9c
Socks5Systemz
c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
Socks5Systemz
d4e16d64c907e94582b597ee468f3ffbb85f4563db0b69ac1cb427c978158f5f
Socks5Systemz
error
Socks5Systemz
+ 2'303 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor discovery trojan
Link:
https://tria.ge/reports/241016-a4mgpsycrn/
Behaviour
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
SmokeLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/fa53fa93-f112-4477-aa94-758305540c35
Unpacked files
SH256 hash:
aaf66610fa41dbdb7274c274954d697a0e81e83e677bf3b58102222c291b6949
MD5 hash:
2577ec6102eea4a1af020833990069fc
SHA1 hash:
7aa9cfbe30c72c855887931ed217e576dc70b284
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/12464269-8f18-4b1e-88ab-531620b6d101/
Parent samples :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 hash:
c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
MD5 hash:
66c625cef9aa371ac55a64c94691891c
SHA1 hash:
10b09c65d81dcc2c1230a2ad39a32e8fea42ba6a
Link:
https://www.unpac.me/results/12464269-8f18-4b1e-88ab-531620b6d101/
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/c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Socks5Systemz

Executable exe c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3192422/
  
Delivery method
Distributed via web download

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetDiskFreeSpaceExA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesA
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

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