MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81. 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 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81
SHA3-384 hash: 5f39101f62054d653ddc639ddcb9cc2a6365b43cda4978fbf7342d11d0789f2028283c4a4a3fdfbbf51a660b9a43b775
SHA1 hash: efd5613b71a15fc4b7764ef36e6937c24ce097a6
MD5 hash: ad6f5190fdc7db6e36b79f6a076f4926
humanhash: jupiter-pennsylvania-tennessee-massachusetts
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:5'087'108 bytes
First seen:2025-12-17 21:09:33 UTC
Last seen:2025-12-18 03:20:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ac4ded70f85ef621e5f8917b250855be (25 x OffLoader, 2 x Tofsee, 2 x CHStealer)
ssdeep 98304:MN66JzRONPvGSPKNLWbDT+QJU3yt7966u5oV:oRIF3P66nU3ytp66uU
Threatray 277 similar samples on MalwareBazaar
TLSH T18E361233B38A273EF06E1A3755B2D2305D7B7E61A50A8CC697E4484CCF5A1A01E7E647
TrID 60.0% (.EXE) Inno Setup installer (107240/4/30)
23.2% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
5.8% (.EXE) Win64 Executable (generic) (10522/11/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
2.5% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 Stealc


Avatar
Bitsight
url: http://178.16.55.189/files/2085577942/xg1Udyk.exe

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://91.212.150.246/07efd5d9112845b8.php https://threatfox.abuse.ch/ioc/1682026/

Intelligence

File Origin
# of uploads :
5
# of downloads :
126
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/14e53c23-4ef9-4e25-aa3a-d21d33df9e1e/
Malware family:
n/a
ID:
1
File name:
a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-12-17 20:41:03 UTC
Tags:
stealc stealer upx
Link:
https://app.any.run/tasks/03c2406d-7ab2-4a7b-8c08-76bc167f773e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/45361/
Detection(s):
SecuriteInfo.com.Trojan-PSW.Win32.Lumma.zbb.18054.17153.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69431c41c97f4a807a3b9950
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Using the Windows Management Instrumentation requests
Restart of the analyzed sample
Creating a process with a hidden window
Sending a custom TCP request
Creating a file
Moving a recently created file
Searching for the window
Enabling the 'hidden' option for recently created files
Connection attempt
Sending an HTTP POST request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context embarcadero_delphi fingerprint inno installer installer installer-heuristic overlay packed tofsee
Link:
https://www.filescan.io/uploads/69431c3c84afa5547b593854/reports/536c0d58-ddc9-4585-8ba9-e01ea4448c68/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-17T17:47:00Z UTC
Last seen:
2025-12-18T12:48:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win64.StealC.sb Trojan-PSW.Win32.Lumma.zbb Trojan-PSW.Lumma.HTTP.C&C
Link:
https://opentip.kaspersky.com/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9e3587c8-9f23-402c-8719-2b5eb929618d
Score:
77%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/ad6f5190fdc7db6e36b79f6a076f4926
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81/
Verdict:
Malicious
Threat:
Family.STEALC
Link:
https://tip.neiki.dev/file/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81
Threat name:
Win32.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2025-12-17 20:41:04 UTC
File Type:
PE (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uksdhuvhx77g64445wtzsmomn6y6rej2cnvw6pqgccwvyuz6rwaq._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Similar samples:
2cbf6f453f271cf0665934cdfb7595d2e2c5d21b68142b92c0a8aff4e24631fc
Stealc
2e16f69641a223aaacdf4f55696a4c6cae94a1529d2b801a4b50e6044e7d6794
Stealc
4dc52e577447f9128cbdb08210420fe8c49844f04cdbcd0f10ac3f55f561637d
Stealc
77a4ca5abcca2cfa0c67b54ae314093d80d14b795ef97ef43f91a929ca4b9ef2
Stealc
9b7ebcd4b27ace0f237f2ccab58503340be62a43112f9c537d16f42d40abb715
Stealc
ab2b1a840daeb5323e7e4ab215a179d15c749cfc3a0a0c3c7b2b8be5bd43c020
Stealc
c3db0f035cf37feecce89bbad6c84be4e6c8385b7799b464651681dbd2a0db85
Stealc
error
Stealc
+ 267 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:fk+2aayr botnet:lab2 discovery installer spyware stealer upx
Link:
https://tria.ge/reports/251217-zz7phs1jhs/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Enumerates physical storage devices
System Location Discovery: System Language Discovery
UPX packed file
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Stealc
Stealc family
Malware Config
C2 Extraction:
http://91.212.150.246
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/98178502-a589-4ad0-9ae9-9180e95e4a1d
Unpacked files
SH256 hash:
a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81
MD5 hash:
ad6f5190fdc7db6e36b79f6a076f4926
SHA1 hash:
efd5613b71a15fc4b7764ef36e6937c24ce097a6
Link:
https://www.unpac.me/results/5dbc2686-cf81-4975-a54c-ca09c86c2e91/
SH256 hash:
032c3889688df74fc28805c2242e8f2927ea8fb163222cb4e420d4ca9bf0f843
MD5 hash:
9ea7276a2f666630a627fcb70bc4a0f9
SHA1 hash:
2ce3b970b64455d81f7118d81af51a42595a84b4
Link:
https://www.unpac.me/results/5dbc2686-cf81-4975-a54c-ca09c86c2e91/
SH256 hash:
388a796580234efc95f3b1c70ad4cb44bfddc7ba0f9203bf4902b9929b136f95
MD5 hash:
e4211d6d009757c078a9fac7ff4f03d4
SHA1 hash:
019cd56ba687d39d12d4b13991c9a42ea6ba03da
Link:
https://www.unpac.me/results/5dbc2686-cf81-4975-a54c-ca09c86c2e91/
Malware family:
Stealc.v2
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2a433d2a7bf/report/overview.html
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/a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81

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:Borland
Create hunting rule
Author:malware-lu
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Web download

Stealc

Executable exe a2a433d2a7bffe6f739ceda79931cc6fb1e8913a136b6f3e0610ad5c533e8d81

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/45361/
  
URLhaus
https://urlhaus.abuse.ch/url/3735757/

Comments