MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce. 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


Stealc


Vendor detections: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
SHA3-384 hash: 607ee3bf0f78cb77969d54675b26b673dee35534dc5df716f9d3fa1c7f1997bd023ef2b38f7e79acc7fd097ca460c4a7
SHA1 hash: fa206876084178b61238d11b860443acc571b965
MD5 hash: 517723763103f23dcd3a692066db6aee
humanhash: december-gee-louisiana-jersey
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:5'170'688 bytes
First seen:2024-08-24 13:02:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 49152:peeR5LjrbcWhqhPGIvoXtlFlFlmiQ3de3DHC9Vpnmnro5R11fd1JPevYCE4fbXJT:pxRdrb1q+7XXHMHn4rIR1Hr2xeih
Threatray 16 similar samples on MalwareBazaar
TLSH T170366B127E94CE12C02E1637CDEF552483FCEC946B13EAAB79D973AC6446362190E1DE
TrID 36.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
28.9% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
15.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
5.2% (.EXE) Win64 Executable (generic) (10523/12/4)
3.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
File icon (PE):PE icon
dhash icon fc34fcc4a686ce40 (1 x Stealc)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://147.45.44.104/yuop/66c9d38385a86_crypto.exe#kiscr

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-24 13:04:27 UTC
Tags:
stealer stealc loader raccoonclipper
Link:
https://app.any.run/tasks/6fd24a45-a2b3-4e4e-aae7-b9b6418fa658

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Malwarex-10033462-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c9d9d1e7ff3f5a063bd8b2
Tags:
Generic Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Unknown
Threat level:
  10/10
Confidence:
100%
Tags:
explorer lolbin net_reactor obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/66c9d9cf950c378bfba59111/reports/688121b1-e56a-4d18-b4b9-8106309686ca/overview
Verdict:
Malicious
Labled as:
MSIL/Kryptik.ALRR trojan
Link:
https://www.hybrid-analysis.com/sample/a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
Result
Verdict:
MALICIOUS
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eab4faa8-5d52-4412-96f7-99a84fcfdbff
Result
Threat name:
Clipboard Hijacker, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1498408
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Clipboard Hijacker
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1498408 Sample: file.exe Startdate: 24/08/2024 Architecture: WINDOWS Score: 100 54 aldiablo.cl 2->54 56 Multi AV Scanner detection for domain / URL 2->56 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 14 other signatures 2->62 11 file.exe 3 2->11         started        15 oobeldr.exe 2->15         started        signatures3 process4 file5 46 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 11->46 dropped 72 Found many strings related to Crypto-Wallets (likely being stolen) 11->72 17 RegAsm.exe 37 11->17         started        74 Antivirus detection for dropped file 15->74 76 Multi AV Scanner detection for dropped file 15->76 78 Detected unpacking (changes PE section rights) 15->78 80 Switches to a custom stack to bypass stack traces 15->80 22 schtasks.exe 1 15->22         started        signatures6 process7 dnsIp8 50 aldiablo.cl 186.64.114.115, 443, 49706 ZAMLTDACL Chile 17->50 52 193.176.190.41, 49699, 49711, 80 AGROSVITUA unknown 17->52 38 C:\Users\user\AppData\...\softokn3[1].dll, PE32 17->38 dropped 40 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 17->40 dropped 42 C:\Users\user\AppData\...\mozglue[1].dll, PE32 17->42 dropped 44 11 other files (7 malicious) 17->44 dropped 64 Found many strings related to Crypto-Wallets (likely being stolen) 17->64 66 Tries to harvest and steal ftp login credentials 17->66 68 Tries to harvest and steal browser information (history, passwords, etc) 17->68 70 4 other signatures 17->70 24 cmd.exe 1 17->24         started        26 conhost.exe 22->26         started        file9 signatures10 process11 process12 28 AEGDBAFHJJ.exe 1 24->28         started        32 conhost.exe 24->32         started        file13 48 C:\Users\user\AppData\Roaming\...\oobeldr.exe, MS-DOS 28->48 dropped 82 Antivirus detection for dropped file 28->82 84 Multi AV Scanner detection for dropped file 28->84 86 Detected unpacking (changes PE section rights) 28->86 88 2 other signatures 28->88 34 schtasks.exe 1 28->34         started        signatures14 process15 process16 36 conhost.exe 34->36         started       
Score:
86%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-08-24 13:03:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uupvkq2o6rdgaqzvp5rrmgt6jkirss32rpfvhv6wa5atkrdpfhha._file
Verdict:
malicious
Similar samples:
4626be711dccb87a5b4e136e17e2887eadcc44c5ed201c5d1e621d7e2cfaf530
Stealc
6ae1ebeb88e73be3fd5141deb9e85ed84203af1ef50cea7f2efc6be74816e52e
Stealc
9e9c2fb86b9215aabb51108105b5c5a553f9c2d4904f8f03c4a8b7ff3602c989
Stealc
a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
Stealc
b8a5ef9ea9fa588907a197db55c743559460190aa58b227db10d6be75d8bfe39
Stealc
e7ad5000fcab4b69737e7b206f7ea0fbeeb7f68443e983e924e2710b54c7e5d4
Stealc
e9b46bc46e9bec0632d4e5311e5f79329ddba93416479bd9a2b9d57f13e7c898
Stealc
+ 6 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:cry discovery stealer
Link:
https://tria.ge/reports/240824-p9sm8sshpq/
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Stealc
Malware Config
C2 Extraction:
http://193.176.190.41
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/68a90fd0-1072-4098-9712-bb95fc3e3403
Unpacked files
SH256 hash:
381d65417c5972da260fc4b94b74750b5036696a5045c9aaccbe7b9e2d2321d7
MD5 hash:
9392bd8d638e15dcacfd14d305db92bb
SHA1 hash:
e090fff5421b6ca81f352de8c674c00f680de41d
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a89d5846-c0c9-4d01-b867-fda0d373a163/
Parent samples :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 hash:
5130198f306389d5b11dd3c9733013c5b01f4b125fa6974ed59ee1b8f7b79d25
MD5 hash:
5cf58a74a084ba02bfe7c7cd37e01179
SHA1 hash:
a6855b0b740149103d855203b4bea4babf7075ff
Link:
https://www.unpac.me/results/a89d5846-c0c9-4d01-b867-fda0d373a163/
SH256 hash:
ffe60cdbbd0cfacc809ba7e3e22bc5a7b89ce215bc020d6671367213fee0694f
MD5 hash:
9c4b593b2a1f1d1c09e96c761bc45a08
SHA1 hash:
84a3be8a367ab8811b14fecd9de47da25759e787
Link:
https://www.unpac.me/results/a89d5846-c0c9-4d01-b867-fda0d373a163/
SH256 hash:
9b86d8c73fa219bef3689dd13e7ab7996cf4007a5c72ea988de8690fb7b9ea48
MD5 hash:
175e665a8d0021510549eb8557b01bbf
SHA1 hash:
71f011c065cb77d77c3f671a25b24b044e2ba969
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/a89d5846-c0c9-4d01-b867-fda0d373a163/
Parent samples :
9f4a43a1e05196eb4cfa7b9aa2cc09e9fbdcc0047cada2cb9f30d63d9386a686
b3e2fe43f3024cc479415e745cd9826752debe4e8b208e5e5b7cc510723b787d
c308013d90d5f773466b86052267ddcb476c9a99acc5e639fa5b20e5dda85e41
a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
677074e2c7852d99ae47bcc355c3d77c3afa0391f9393012c3b1ef24957beacb
SH256 hash:
a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
MD5 hash:
517723763103f23dcd3a692066db6aee
SHA1 hash:
fa206876084178b61238d11b860443acc571b965
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a89d5846-c0c9-4d01-b867-fda0d373a163/
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/a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Stealc

Executable exe a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3126074/

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

Comments