MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b91cebec72ba934cde8ee67e8c4135c8c558d8ff46a70d3fdca83d9c37dd377b. 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: 14


Intelligence 14 IOCs YARA 11 File information Comments

SHA256 hash: b91cebec72ba934cde8ee67e8c4135c8c558d8ff46a70d3fdca83d9c37dd377b
SHA3-384 hash: b62924d823bc73f45faa7f50b3cf5e736c96dfd43633b32eae1c9f14b0d003b9a77612b55ea202d832834ad565bffea0
SHA1 hash: 233cef70b121f9e285ccc26e93982bcd6575f9a7
MD5 hash: f674075c28388137b66df82d05066330
humanhash: quebec-wisconsin-jersey-kitten
File name:file
Download: download sample
Signature Stealc
File size:779'776 bytes
First seen:2026-02-23 20:43:21 UTC
Last seen:2026-02-23 23:49:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f456face36cfa724bf01290dd8927512 (2 x Stealc)
ssdeep 12288:NzDhwo1qqr/aead+W3cyMzNP8WTopMRWd38yxBlDetAqxSva:D7NaeRW3P2k0WWUsybS
TLSH T1D5F47C1BE7A602F9D1B7C274CA424957E772B8065370978F03E14AA61F376909F3EB21
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:b80777 dropped-by-amadey exe Stealc


Avatar
Bitsight
url: http://196.251.107.104/build1.exe

Intelligence


File Origin
# of uploads :
6
# of downloads :
155
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-02-23 20:43:40 UTC
Tags:
stealc stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
shellcode packed hype
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP POST request
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd fingerprint lolbin microsoft_visual_cc stealc
Verdict:
Malicious
Labled as:
Shellcode.Loader.Marte.X.Generic
Result
Gathering data
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan-PSW.Win32.StealC.v2 Trojan-PSW.Win64.StealC.sb
Gathering data
Threat name:
Win64.Trojan.StealC
Status:
Malicious
First seen:
2026-02-23 20:47:03 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery pyinstaller spyware stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Detects Pyinstaller
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
b91cebec72ba934cde8ee67e8c4135c8c558d8ff46a70d3fdca83d9c37dd377b
MD5 hash:
f674075c28388137b66df82d05066330
SHA1 hash:
233cef70b121f9e285ccc26e93982bcd6575f9a7
Detections:
win_stealc_auto
SH256 hash:
61ab1d22949eac0582e989ae065ec4caee9ac99998276317edda96735cd311fb
MD5 hash:
a8480ece517b8367ca8418d7888f410d
SHA1 hash:
49802c5598b2e9d94229ae987d0ac47bbf8977ea
Detections:
win_stealc_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Heuristics_ChromeABE
Author:Still
Description:attempts to match instructions related to Chrome App-bound Encryption elevation service; possibly spotted amongst infostealers
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:StealcV2
Author:Still
Description:attempts to match the instructions found in StealcV2
Rule name:Windows_Trojan_Stealc_41db1d4d
Author:Elastic Security
Rule name:win_stealc_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.

File information


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

Web download

Stealc

Executable exe b91cebec72ba934cde8ee67e8c4135c8c558d8ff46a70d3fdca83d9c37dd377b

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

Comments