MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff471332a31788ad2452df4f670d8bd8e8811b803ad46e38b0ff90d9187d2a2d. 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



MaskGramStealer


Vendor detections: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: ff471332a31788ad2452df4f670d8bd8e8811b803ad46e38b0ff90d9187d2a2d
SHA3-384 hash: 7b2c8b018e8434d3f6b7c59f1fac5adf5e04acf91254cc7ef03ae29b1de90f252853903d7370226b5c2ac9026cc5f865
SHA1 hash: 7b9f945a98900df54c30a370fe67a54ba5851d50
MD5 hash: dafbccac432740f08b75a962fe1b67f4
humanhash: arizona-three-florida-indigo
File name:file
Download: download sample
Signature MaskGramStealer
File size:2'166'272 bytes
First seen:2025-12-09 01:30:09 UTC
Last seen:2025-12-09 03:21:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash dc6b57a7282f87959d9942f26d5c0b74 (60 x MaskGramStealer)
ssdeep 49152:734GyRJ3u7ose+VdfwXs/1/OykvGhsrDJoz:73zyR9Y5eWdf4swyWGhsn
TLSH T1FAA533493D68BA07C9B377F4EF4B21109766AD31B48A60F65F4C8B835C2F906DC71562
TrID 38.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.6% (.ICL) Windows Icons Library (generic) (2059/9)
15.4% (.EXE) OS/2 Executable (generic) (2029/13)
15.2% (.EXE) Generic Win/DOS Executable (2002/3)
15.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 86136971332b2b8e (1 x MaskGramStealer)
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 MaskGramStealer


Avatar
Bitsight
url: http://178.16.55.189/files/7694683550/Ibva6OD.exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
145
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_ff471332a31788ad2452df4f670d8bd8e8811b803ad46e38b0ff90d9187d2a2d.exe
Verdict:
Malicious activity
Analysis date:
2025-12-09 01:38:38 UTC
Tags:
stealer themida svitstealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
ransomware virus crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Behavior that indicates a threat
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Query of malicious DNS domain
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-08T22:50:00Z UTC
Last seen:
2025-12-09T22:03:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Vidar.HTTP.C&C Trojan.Win32.Agentb.tnyx PDM:Trojan.Win32.Generic HEUR:Trojan.Win32.Agentb.gen
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Midie
Status:
Malicious
First seen:
2025-12-09 01:30:30 UTC
File Type:
PE+ (Exe)
Extracted files:
8
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
maskgramstealer
Similar samples:
Result
Malware family:
maskgram_stealer
Score:
  10/10
Tags:
family:maskgram_stealer defense_evasion discovery spyware stealer themida trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks whether UAC is enabled
Checks BIOS information in registry
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Themida packer
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Detects MaskGramStealer payload
MaskGramStealer
Maskgram_stealer family
Malware Config
C2 Extraction:
mossyden2011.sbs
Verdict:
Suspicious
Tags:
Suspicious_POST_body
YARA:
n/a
Unpacked files
SH256 hash:
ff471332a31788ad2452df4f670d8bd8e8811b803ad46e38b0ff90d9187d2a2d
MD5 hash:
dafbccac432740f08b75a962fe1b67f4
SHA1 hash:
7b9f945a98900df54c30a370fe67a54ba5851d50
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:INDICATOR_EXE_Packed_Themida
Author:ditekSHen
Description:Detects executables packed with Themida

File information


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

Web download

MaskGramStealer

Executable exe ff471332a31788ad2452df4f670d8bd8e8811b803ad46e38b0ff90d9187d2a2d

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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