MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8. 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


GuLoader


Vendor detections: 7


Intelligence 7 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8
SHA3-384 hash: 6e5c6b3a2ba4067ec4d7b7989a7edec0c7ee57e5445fa2cdcce53fcbe808736b5b90677f2d70c3bdb78f4de26ca7be9e
SHA1 hash: 2a091f7b88dd5759c79807bd9165fbed3eaf8773
MD5 hash: c0ca29155bf319033b71424250083edd
humanhash: montana-cat-oregon-green
File name:AudioAppZEXAQQHUTE.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:360'608 bytes
First seen:2022-02-15 19:20:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (728 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:sbE/HUjvaiyEmoiPHVcBMrbCtLiVaNTCG5w92oUjGmmpJpG1d9xvksNBk8UAuz31:sb/yiyoiPHVAMfCtTCow97UjGmg0d9x2
Threatray 9'284 similar samples on MalwareBazaar
TLSH T1217412607AA2987FC5621A3539777F929FFADC2490FA5A0703647F0D3E736824A0E351
File icon (PE):PE icon
dhash icon 60f1c8e8acec7888 (1 x GuLoader)
Reporter ffforward
Tags:exe GuLoader remcos signed

Code Signing Certificate

Organisation:Fattiggaardes
Issuer:Fattiggaardes
Algorithm:sha256WithRSAEncryption
Valid from:2022-02-14T01:21:46Z
Valid to:2023-02-14T01:21:46Z
Serial number: 00
Intelligence: 325 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 9ec5490790d433b1331c08ab6989349e59dc1ad4c1e1a07c965a9d43524a756e
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
355
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8.exe
Verdict:
Malicious activity
Analysis date:
2022-02-15 21:25:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5a71162b-1a6d-4334-8a42-781c3bc92c24

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/241690/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.31250.17971.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/620bfd21a2660f3bb9dd9eb5/reports/5af66182-e850-4d25-830f-1a063056ec40/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6464c0d7-77aa-4edc-94c1-2706b8a7bcc6
Result
Threat name:
GuLoader Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/940412
Signature
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious values (likely registry only malware)
Found malware configuration
Hides threads from debuggers
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: New RUN Key Pointing to Suspicious Folder
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 572886 Sample: AudioAppZEXAQQHUTE.exe Startdate: 15/02/2022 Architecture: WINDOWS Score: 100 38 top.nobullshyt1.xyz 2->38 40 oliveiraadvogadoscatanduva.adv.br 2->40 52 Found malware configuration 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 Yara detected GuLoader 2->56 58 5 other signatures 2->58 8 AudioAppZEXAQQHUTE.exe 1 23 2->8         started        12 wscript.exe 2->12         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\Temp\zlib1.dll, PE32+ 8->24 dropped 26 C:\Users\user\AppData\Local\...\uninstall.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\Local\...\System.dll, PE32 8->28 dropped 30 2 other files (none is malicious) 8->30 dropped 64 Creates autostart registry keys with suspicious values (likely registry only malware) 8->64 66 Tries to detect Any.run 8->66 68 Hides threads from debuggers 8->68 14 AudioAppZEXAQQHUTE.exe 2 9 8->14         started        19 stttevokals.exe 18 12->19         started        signatures6 process7 dnsIp8 42 top.nobullshyt1.xyz 185.228.19.147, 10050, 49810 DEDIPATH-LLCUS Germany 14->42 44 oliveiraadvogadoscatanduva.adv.br 209.126.0.98, 443, 49809, 49817 CONTABOUS United States 14->44 32 C:\Users\user\AppData\...\stttevokals.exe, PE32 14->32 dropped 34 C:\Users\user\AppData\...\stttevokals.vbs, ASCII 14->34 dropped 36 C:\Users\user\AppData\Local\...\System.dll, PE32 19->36 dropped 46 Multi AV Scanner detection for dropped file 19->46 48 Tries to detect Any.run 19->48 50 Hides threads from debuggers 19->50 21 stttevokals.exe 7 19->21         started        file9 signatures10 process11 signatures12 60 Tries to detect Any.run 21->60 62 Hides threads from debuggers 21->62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-02-15 19:21:10 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
32dcdbac829f1b6607c1581488a6cf95541fba686f5f81c23b9e1e79761a971b
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414a14294a3c88613f1480a69fa0d7cf3dfbb83eedd5ef0acc3ad39f6e01ee65
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5d7bc178cb3eafae7b2c99b2cfd2ceec87119cf2403f86af87435d4479f36724
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820b1216485962fa3501dc8bd02a76bdb821fd7b6ffab858c4ebe135c4246090
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aaded4fcee9176fe04085b40b5c11861cfbcdf76eea26f508b119eda00ada941
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ce931ede894759cdd518d9dd8f4a9888b7fa3656bd6fa3bc0b66514b985efb5d
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da71644ee66cad527be192aefdfb9e5c70f0977d111d95e3591c8221aca1ccfc
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ddff09f62985a15537bf510e1b95a0e31b5714a498c050671df0325802a7f3e9
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f6083599947328d2637adb3cb9810fefd0d9195c504dc2e081fcfca776090c2b
GuLoader
fb347f1dbbd110cf5a15d429a59efd312a7a70e686dbcde9ddc433f536e02fe1
GuLoader
+ 9'274 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader persistence
Link:
https://tria.ge/reports/220215-x2m2saaffl/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8
MD5 hash:
c0ca29155bf319033b71424250083edd
SHA1 hash:
2a091f7b88dd5759c79807bd9165fbed3eaf8773
Link:
https://www.unpac.me/results/dfa29cbe-7653-4cfd-8fc3-351d6193630a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/b57d7de33914f91073e29ac243cc026716b4b4a2ffd3ad9235e407c73fdb4be8

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/241690/

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