MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
SHA3-384 hash: d20cb850f3d019824eaf393d8ddaabdedafc4c225c65d365cc4cb8d792fefc5636315803259362594cea08cb789e2283
SHA1 hash: dbb8a91f3b0ef0df5ec5540ce1899d9d0969831b
MD5 hash: a8c024cc0c9ca0d6a84a208c423eb753
humanhash: ohio-river-bluebird-failed
File name:file
Download: download sample
Signature MaskGramStealer
Create hunting rule
File size:2'558'464 bytes
First seen:2025-12-10 08:57:30 UTC
Last seen:2025-12-10 10:32:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash dc6b57a7282f87959d9942f26d5c0b74 (34 x MaskGramStealer)
ssdeep 49152:zUS1TWqL1gTq6G3pqa5U8ZiM0IiJbh63VYrCRWCmqwrd:NXZJfx/PiJbQ0Xrd
TLSH T1B5C533A87F55A711F6B1DFF379D37450B00E358385EC26343252994E2227CF62E2A36A
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
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 MaskGramStealer


Avatar
Bitsight
url: http://178.16.55.189/files/5917492177/oN83HLg.exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
112
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2025-12-10 08:59:37 UTC
Tags:
stealer themida svitstealer
Link:
https://app.any.run/tasks/a94444f9-6126-478f-9fcc-521f9876a436

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/44131/
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.26438488.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6939362da675b653bd0fa6df
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mingw obfuscated packed packed themidawinlicense
Link:
https://www.filescan.io/uploads/6939362a1eac7b9b76a35a17/reports/14753637-be15-4e55-aef8-f4b607dfe185/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-10T06:32:00Z UTC
Last seen:
2025-12-12T01:43:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan.Win32.Agentb.gen Trojan-PSW.Vidar.HTTP.C&C Trojan.Win32.Agentb.tnzp PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5a5ec64b-4870-4dd7-bfff-636409fd47c0
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/a8c024cc0c9ca0d6a84a208c423eb753
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5/
Verdict:
Malicious
Threat:
Family.MASKGRAM_STEALER
Link:
https://tip.neiki.dev/file/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
Threat name:
Win64.Trojan.Midie
Create hunting rule
Status:
Malicious
First seen:
2025-12-10 08:58:20 UTC
File Type:
PE+ (Exe)
Extracted files:
8
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7mnxk3yje6bpjwqgcz52aueunriwpretgdhapamumfrchgjs7osq._file
Verdict:
malicious
Label(s):
maskgramstealer
Create hunting rule
Similar samples:
error
MaskGramStealer
Result
Malware family:
maskgram_stealer
Create hunting rule
Score:
  10/10
Tags:
family:maskgram_stealer defense_evasion discovery spyware stealer themida trojan
Link:
https://tria.ge/reports/251210-kxbfzagp9s/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
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
Link:
https://app.threat.zone/submission/d4135451-9cde-4989-89b5-726fd5577292
Unpacked files
SH256 hash:
fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
MD5 hash:
a8c024cc0c9ca0d6a84a208c423eb753
SHA1 hash:
dbb8a91f3b0ef0df5ec5540ce1899d9d0969831b
Link:
https://www.unpac.me/results/c7b7d245-46f8-4bdb-b59a-7c57784559eb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fb1b756f0927/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/fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5

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
Create hunting rule
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 fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3730626/
Cape
Cape
https://www.capesandbox.com/analysis/44131/

Comments