MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d77643273b1afd22432034f1b8cc88cf3cf7fec3d69ceea689a5001b75c28d9d. 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



Threat unknown


Vendor detections: 12


Intelligence 12 IOCs YARA 14 File information Comments

SHA256 hash: d77643273b1afd22432034f1b8cc88cf3cf7fec3d69ceea689a5001b75c28d9d
SHA3-384 hash: 6b45c93cae6650f4a4804d0f8be473bed242b64653d79d75e86439619a1a0fd74b0bf2595f66ba1401c5f4e47bce489c
SHA1 hash: bfeddba7ac8a7727d7a50c9fe8f8bc0174a709bf
MD5 hash: 4ad3608638999fe1a603a37ad86dd3c5
humanhash: eight-muppet-white-mockingbird
File name:12025521.exe
Download: download sample
File size:18'414'080 bytes
First seen:2025-12-10 06:29:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash cdca197527f2c7f7fd5951a6c7a91568
ssdeep 393216:oYVQ+pgkwVqkGbr+MeWmt2wp01F4MjnLanKoz4S0va037Ge:oofyDw+MeW1F4KtS0vv
TLSH T10C073346059B66B7F237C0BB667DAAF8391CDB33C9DB8084661CCC031CFAAB096D4951
TrID 43.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
27.6% (.EXE) Win64 Executable (generic) (10522/11/4)
13.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) OS/2 Executable (generic) (2029/13)
5.2% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter anir0y
Tags:exe infostealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
150
Origin country :
IN IN
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
12025521.exe
Verdict:
Malicious activity
Analysis date:
2025-12-10 06:30:34 UTC
Tags:
silverfox backdoor valley rat

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

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
microsoft_visual_cc overlay packed
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-10T04:10:00Z UTC
Last seen:
2025-12-10T08:26:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Inject.sb Trojan.Win32.Agentb.sb HEUR:Trojan.Win64.Generic Trojan.Win32.PoolInject.dwy Trojan.Win32.Agent.sb Trojan.Win64.Kryplod.sb Trojan.Win64.Agent.sba Trojan.Win32.PoolInject.sba PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Stealer.sb Trojan-Dropper.Win32.Injector.sb Trojan.Win64.Zenpak.sb
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Malware.Heuristic
Status:
Malicious
First seen:
2025-12-10 06:30:33 UTC
File Type:
PE+ (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence ransomware
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: SetClipboardViewer
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Drops file in System32 directory
Suspicious use of SetThreadContext
Deletes itself
Executes dropped EXE
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d77643273b1afd22432034f1b8cc88cf3cf7fec3d69ceea689a5001b75c28d9d
MD5 hash:
4ad3608638999fe1a603a37ad86dd3c5
SHA1 hash:
bfeddba7ac8a7727d7a50c9fe8f8bc0174a709bf
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: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:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
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:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Comments