MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2
SHA3-384 hash: ab36c1b0dd377e6eb9537943a7bbe3b6a321947acf6f492484761baf33efc425cf6d74f232cc43bdbe645dddce69169c
SHA1 hash: fe4732667d8200a6ab3680e4e97a42fa3ac8dac9
MD5 hash: 5d73d8101c4fba1bee700006a81f09b5
humanhash: blue-indigo-idaho-hamper
File name:file
Download: download sample
Signature MaskGramStealer
Create hunting rule
File size:10'887'680 bytes
First seen:2025-12-09 01:03:32 UTC
Last seen:2025-12-09 01:09:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 50273325e8c998c3212647a12deb8924 (3 x MaskGramStealer, 1 x Havoc)
ssdeep 196608:lGMrYTbUh7iBHmRhRRmtU2kyJ4DV9h65KPeZewebDRaszOVyig:0M6YkBGrR8tCya5yKhbksq
TLSH T19BB623A6DAD953A8D0C34A50A28656DE70C0755E83EE9C1D3FCF5C023671CAB824BE77
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 MaskGramStealer


Avatar
Bitsight
url: http://178.16.55.189/files/7694683550/MuchL5b.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2.exe
Verdict:
Malicious activity
Analysis date:
2025-12-09 01:04:39 UTC
Tags:
stealer svitstealer
Link:
https://app.any.run/tasks/4f0cfadd-9252-4e63-8fb6-571c48d95488

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/43934/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69377592db58e1a2c22ba4ce
Tags:
n/a
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
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug mingw obfuscated packed packed unsafe vmprotect
Link:
https://www.filescan.io/uploads/6937758fbba50eaf04283888/reports/5ceee731-238e-4a4d-81d4-97aa0fe854d5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-08T22:24:00Z UTC
Last seen:
2025-12-10T06:15:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Vidar.euz Trojan-PSW.Vidar.HTTP.C&C PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/cb173ae8-8723-4572-8e38-9ccf3c99e4ac
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/5d73d8101c4fba1bee700006a81f09b5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2/
Verdict:
Malicious
Threat:
Family.MASKGRAM_STEALER
Link:
https://tip.neiki.dev/file/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2
Threat name:
Win64.Packed.VMProtect
Create hunting rule
Status:
Suspicious
First seen:
2025-12-09 01:04:18 UTC
File Type:
PE+ (Exe)
Extracted files:
8
AV detection:
15 of 24 (62.50%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uf3lpczaseeeum4s72ucta6h7zvebjwnvveepaveye3wapq25sra._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 discovery spyware stealer
Link:
https://tria.ge/reports/251209-be2qrsslgw/
Behaviour
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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/991c7213-0b47-4391-874c-f64eb90be283
Unpacked files
SH256 hash:
a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2
MD5 hash:
5d73d8101c4fba1bee700006a81f09b5
SHA1 hash:
fe4732667d8200a6ab3680e4e97a42fa3ac8dac9
Link:
https://www.unpac.me/results/9371b23e-9e4e-4af7-8a4f-19bfbd134c6f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a176b78b2091/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2

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:DebuggerCheck__RemoteAPI
Create hunting rule
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.

Web download

MaskGramStealer

Executable exe a176b78b2091084a3392fea82983c7fe6a40a6cdad484782a4c137603e1aeca2

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3729568/
Cape
Cape
https://www.capesandbox.com/analysis/43934/

Comments