MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments
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SHA256 hash: d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f
SHA3-384 hash: 9ee04979b7c315d97d8abc873c22916af5b72087411127feb2c4a1799889c5ba55ba61704ceda21eedffc8c9afdbaf6f
SHA1 hash: 732cf678fab5a0f793ecaa8a25480e710987d431
MD5 hash: 1254fead5235e685aa5b45df73242ab4
humanhash: snake-berlin-september-high
File name:1254fead5235e685aa5b45df73242ab4.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:1'208'568 bytes
First seen:2023-10-10 05:40:37 UTC
Last seen:2023-10-10 06:37:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'614 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:SbwaCPhT1am8DyZmTBIRURruAdiBgA4yrzFIA4k+Bove:SbwaCPDjvaIYuSiB+yrzFIA4k+mW
Threatray 81 similar samples on MalwareBazaar
TLSH T187456C08FAEC6950C3EF76B5E4F59920EE2805D550A0F66ABCDC214C2BB179D028D7DB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 02e1c0cc9e969668 (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://91.103.252.74/9787806e0e289839.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1254fead5235e685aa5b45df73242ab4.exe
Verdict:
Malicious activity
Analysis date:
2023-10-10 06:52:37 UTC
Tags:
stealc stealer loader
Link:
https://app.any.run/tasks/6c22b278-1158-4daa-8224-49ae6d831619

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.63.26424.8445.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% directory
Launching a process
Creating a file
Sending a custom TCP request
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f
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:
Oski Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9269f685-742f-499b-89e0-3cb7f780408f
Result
Threat name:
MicroClip, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1322570
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
DLL side loading technique detected
Drops VBS files to the startup folder
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MicroClip
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1322570 Sample: tc4Ftx0bPk.exe Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 63 liderdekorasyon.com 2->63 65 fp2e7a.wpc.phicdn.net 2->65 67 fp2e7a.wpc.2be4.phicdn.net 2->67 73 Snort IDS alert for network traffic 2->73 75 Multi AV Scanner detection for domain / URL 2->75 77 Found malware configuration 2->77 79 16 other signatures 2->79 13 tc4Ftx0bPk.exe 6 2->13         started        17 BLVYL.exe 2->17         started        19 BLVYL.exe 2->19         started        21 5 other processes 2->21 signatures3 process4 file5 57 C:\Users\user\AppData\Roaming\programfiles, PE32 13->57 dropped 59 C:\Users\user\AppData\...\programfiles.vbs, ASCII 13->59 dropped 97 Drops VBS files to the startup folder 13->97 99 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 13->99 101 Writes to foreign memory regions 13->101 111 2 other signatures 13->111 23 MSBuild.exe 34 13->23         started        103 Query firmware table information (likely to detect VMs) 17->103 105 Hides threads from debuggers 17->105 107 Tries to detect sandboxes / dynamic malware analysis system (registry check) 17->107 109 Windows Scripting host queries suspicious COM object (likely to drop second stage) 21->109 signatures6 process7 dnsIp8 69 91.103.252.74, 49742, 80 HOSTGLOBALPLUS-ASRU Russian Federation 23->69 71 liderdekorasyon.com 213.159.2.43, 443, 49744 AEROTEK-ASTR Turkey 23->71 49 C:\Users\user\AppData\...\CFHCGHJDBF.exe, PE32 23->49 dropped 51 C:\Users\user\AppData\...\softokn3[1].dll, PE32 23->51 dropped 53 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 23->53 dropped 55 11 other files (7 malicious) 23->55 dropped 89 Found many strings related to Crypto-Wallets (likely being stolen) 23->89 91 Tries to harvest and steal browser information (history, passwords, etc) 23->91 93 DLL side loading technique detected 23->93 95 2 other signatures 23->95 28 cmd.exe 1 23->28         started        file9 signatures10 process11 process12 30 CFHCGHJDBF.exe 4 28->30         started        34 conhost.exe 28->34         started        file13 61 C:\ProgramData\presepuesto\BLVYL.exe, PE32 30->61 dropped 113 Multi AV Scanner detection for dropped file 30->113 115 Query firmware table information (likely to detect VMs) 30->115 117 Machine Learning detection for dropped file 30->117 119 3 other signatures 30->119 36 cmd.exe 1 30->36         started        signatures14 process15 process16 38 BLVYL.exe 3 36->38         started        41 conhost.exe 36->41         started        43 timeout.exe 1 36->43         started        signatures17 81 Multi AV Scanner detection for dropped file 38->81 83 Query firmware table information (likely to detect VMs) 38->83 85 Tries to detect sandboxes and other dynamic analysis tools (window names) 38->85 87 5 other signatures 38->87 45 schtasks.exe 38->45         started        process18 process19 47 conhost.exe 45->47         started       
Detection:
stealc
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-10-07 12:58:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
46
AV detection:
23 of 36 (63.89%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3bvvkcv2ymjeyor57pptygahcrs6ajptc75b6yczbv6hmyvelkpq._file
Verdict:
malicious
Similar samples:
2a10de68cf32f00733275b4d66276226c82e362b06e8bc1e3af88232f59ebb4e
Stealc
4239478f1ff05d0014ba2492e155e733b661473d7299cbf98eb8f81bbf6e719a
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50825b3dcf4e1bb958dfd1c2e49cc394f3a508f214ddce67bc111c40eed157e4
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6ca768e186aca34cce8eb9a3283f2a17a28f9b81281d464a3c80561b4fbaf066
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75d7d46ed7d193c249f6f1d7e309b6986f1303e772599d90d65467b4a7d5f80a
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92f94ba0c124a7a8158ce117d838c026035116e2ab2565ebc437575ddf87eeea
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9554e7ef83f9c1aabed52be7a308d7e25c99e7d71e006146aee045d29784f92d
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b835220d18074195e2df569e8088470b7f400c334aef1dd54dfe30e2019dab7a
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c7825ac17db3d7a4fca371b94a6bc4aa7d22e40bfa10e24b0c3ef063c82de7d5
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fab5850b79de211ba1d789f80a4684657b3a79c849d46761decb2de95931162b
Stealc
+ 71 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc evasion spyware stealer themida trojan vmprotect
Link:
https://tria.ge/reports/231010-gde39sbc8w/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks whether UAC is enabled
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Themida packer
VMProtect packed file
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://91.103.252.74
Unpacked files
SH256 hash:
335d6e4649ba3bb9752334a5866dfa65c8cdc53d6d4ae24272a80c567e541018
MD5 hash:
5fa6cd6944d45d942adde6c189d875db
SHA1 hash:
006aa807f4f2aebc683554eb1cbc984cbb196c54
Link:
https://www.unpac.me/results/bd48be7f-3b06-4066-ae29-00f7606d4b63/
SH256 hash:
d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f
MD5 hash:
1254fead5235e685aa5b45df73242ab4
SHA1 hash:
732cf678fab5a0f793ecaa8a25480e710987d431
Link:
https://www.unpac.me/results/bd48be7f-3b06-4066-ae29-00f7606d4b63/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d86b550abac3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/d86b550abac3124c3a3dfbdf3c18071465e025f317fa1f60590d7c7662a45a9f

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:infostealer_win_stealc_standalone
Create hunting rule
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETDIC208_NOCEX_NOREACTOR
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_stealc_w0
Create hunting rule
Author:crep1x
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/
Rule name:yara_template
Create hunting rule

File information

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

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