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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aefbc6e04320e9a0e80f2323f8a897c4fdb222a37b0b87d76e850109decbfadd. 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



BlakcSeeStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 16 File information Comments

SHA256 hash: aefbc6e04320e9a0e80f2323f8a897c4fdb222a37b0b87d76e850109decbfadd
SHA3-384 hash: b8cd4f7358285cecd850e7e9621cbdd7472ed1a86c5298f5e94dc86f79cc7bc818b58324685fa5df8c627a14242f583b
SHA1 hash: 0e6890e7db082f1571889e371bf64ca7ec0b978d
MD5 hash: 4a7c94df0248fcb15670d7f31bad32a4
humanhash: happy-two-video-speaker
File name:cx4slf5vu.exe
Download: download sample
Signature BlakcSeeStealer
File size:900'608 bytes
First seen:2026-09-24 19:38:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9932c6203149d9aec63947bf3deda634 (1 x BlakcSeeStealer)
ssdeep 12288:KKFDZiO5q0+37tNV6TgVkqwpOvQx4DEQqwsZVTyLy4g/YKRJNXITcM2vpfjjflmo:VFV+37t4ckLymTyLy4g5HioM2k
TLSH T191156D16A66400BDE0B7C6B4CE675D43E771B84A0370AADB03D05EA63F277D45A3EB12
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 KnownSpotter
Tags:BlakcSeeStealer exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
160
Origin country :
CA CA
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
aefbc6e04320e9a0e80f2323f8a897c4fdb222a37b0b87d76e850109decbfadd.bin
Verdict:
Malicious activity
Analysis date:
2026-09-18 16:11:17 UTC
Tags:
ip-check blakcsee stealer evasion arch-scr arch-doc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %temp% subdirectories
Reading critical registry keys
Deleting a recently created file
Creating a file
Stealing user critical data
Connection attempt to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug crypto evasive exploit fingerprint hacktool microsoft_visual_cc reconnaissance
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-10T19:45:00Z UTC
Last seen:
2026-09-25T18:08:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Ransomware.Encoder
Status:
Suspicious
First seen:
2026-08-11 03:43:57 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
blakcsee_stealer
Score:
  10/10
Tags:
family:blakcsee_stealer discovery spyware stealer
Behaviour
Checks processor information in registry
Suspicious use of WriteProcessMemory
Browser Information Discovery
Checks installed software on the system
Looks up external IP address via web service
Reads user/profile data of web browsers
Malware Config
C2 Extraction:
2.26.126.50
Unpacked files
SH256 hash:
aefbc6e04320e9a0e80f2323f8a897c4fdb222a37b0b87d76e850109decbfadd
MD5 hash:
4a7c94df0248fcb15670d7f31bad32a4
SHA1 hash:
0e6890e7db082f1571889e371bf64ca7ec0b978d
SH256 hash:
75018b06c7105a1dca391805d17b402aed35ebd515b92d461236eafbd606cb40
MD5 hash:
0b43cb77510b1e9be8902ec759ebc5d2
SHA1 hash:
9ec9e92ec96b7aae16a2bf55c1140f8d13392cb6
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:BoryptGrab
Author:Still
Description:attempts to match strings/instructions found in BoryptGrab/BlakcSeeStealer core
Rule name:BunnyLoader
Author:indest
Description:generic crypto/card stealer rule
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dependsonpythonailib
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:grakate_stealer_nov_2021
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:telebot_framework
Author:vietdx.mb
Rule name:TigerRAT_pe_yaraify
Author:hunts-yara-code
Description:YARAify-tightened byte rule from 9 sample(s) -- VERIFY hits
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information


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

Comments