MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20
SHA3-384 hash: 5f4b2b19575f3e6bca62b167aff48a2d567ee8e22d78647d7ae4693fdec4b121ea1e4eaba6eb8d2380cf121d94226f38
SHA1 hash: 6c22b191eeaed5024ce6e09c598ea9457865d9d7
MD5 hash: 2456675bfe2e68d6149c840b1d11dd61
humanhash: tango-potato-cold-indigo
File name:2456675bfe2e68d6149c840b1d11dd61
Download: download sample
Signature GuLoader
Create hunting rule
File size:274'520 bytes
First seen:2023-07-14 07:15:30 UTC
Last seen:2023-07-14 10:00:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (295 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 6144:vC27B0fQe1+5BMWxix39ri0vCb8aiIxJMiDmd/GnsRrsgot3W:jw0fLi/i0qbBxJh6dOn9ga3W
Threatray 1'474 similar samples on MalwareBazaar
TLSH T1964401150A8FA47FDE41177075BFE20A8ABB7D91B90A75D3A3042F2B6D3C18E491B5C2
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 9679cc969e99d32b (4 x GuLoader)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-05-16T06:57:44Z
Valid to:2026-05-15T06:57:44Z
Serial number: 3ac102e6a6cf22f4cd4a8fbe01d1491591113538
Thumbprint Algorithm:SHA256
Thumbprint: e9cd68a1ce31b65ace932b52874d0a155ad52daa040cd862bb7d3f1e59029001
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
266
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2456675bfe2e68d6149c840b1d11dd61
Verdict:
Malicious activity
Analysis date:
2023-07-14 07:17:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/357405af-361e-4fab-a31a-c75aebbc73cb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/418631/
Detection(s):
SecuriteInfo.com.HEUR.5498.4039.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/97554/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64b0f634a15fc7eb4fd2894e/reports/a3ec8fa8-0256-41b4-95ba-e817e2175b64/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20
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/3eb08f30-9758-49b1-8b4a-f2bf3b77cad2
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1272967
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1272967 Sample: cZTDRJTi2z.exe Startdate: 14/07/2023 Architecture: WINDOWS Score: 100 58 www.wearerp.com 2->58 60 www.vex5678.com 2->60 62 21 other IPs or domains 2->62 80 Snort IDS alert for network traffic 2->80 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 10 other signatures 2->86 11 cZTDRJTi2z.exe 5 36 2->11         started        signatures3 process4 file5 50 C:\Users\user\...\libpixbufloader-icns.dll, PE32+ 11->50 dropped 52 C:\Users\user\AppData\Local\...\System.dll, PE32 11->52 dropped 100 Tries to detect Any.run 11->100 15 cZTDRJTi2z.exe 6 11->15         started        signatures6 process7 dnsIp8 70 192.3.243.148, 50230, 80 AS-COLOCROSSINGUS United States 15->70 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Tries to detect Any.run 15->74 76 Maps a DLL or memory area into another process 15->76 78 2 other signatures 15->78 19 explorer.exe 13 8 15->19 injected signatures9 process10 dnsIp11 64 www.kuoli.xyz 203.161.56.141, 50246, 80 VNPT-AS-VNVNPTCorpVN Malaysia 19->64 66 www.growgram.info 162.144.13.176, 50234, 50243, 80 UNIFIEDLAYER-AS-1US United States 19->66 68 11 other IPs or domains 19->68 42 C:\Users\user\AppData\Local\...\mx208pid3.exe, PE32 19->42 dropped 88 System process connects to network (likely due to code injection or exploit) 19->88 90 Benign windows process drops PE files 19->90 24 cmmon32.exe 1 18 19->24         started        28 mx208pid3.exe 26 19->28         started        file12 signatures13 process14 file15 44 C:\Users\user\AppData\...\61-logrv.ini, data 24->44 dropped 46 C:\Users\user\AppData\...\61-logri.ini, data 24->46 dropped 92 Detected FormBook malware 24->92 94 Tries to steal Mail credentials (via file / registry access) 24->94 96 Tries to harvest and steal browser information (history, passwords, etc) 24->96 98 4 other signatures 24->98 30 cmd.exe 2 24->30         started        34 firefox.exe 1 24->34         started        36 cmd.exe 1 24->36         started        48 C:\Users\user\AppData\Local\...\System.dll, PE32 28->48 dropped signatures16 process17 file18 54 C:\Users\user\AppData\Local\Temp\DB1, SQLite 30->54 dropped 102 Tries to harvest and steal browser information (history, passwords, etc) 30->102 38 conhost.exe 30->38         started        56 C:\Users\user\AppData\...\61-logrf.ini, data 34->56 dropped 40 conhost.exe 36->40         started        signatures19 process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nw4dh3pav6oqbp4ayh7bgtuupmpmis77kvyteulgsaq26hmnvqqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
091305d3595b7324e7fb674b6120cdb142a6196e796f890fd625e76a014211e8
GuLoader
53bb0f293733cadbf6b5704cd0359b61acaa6367eb49268905714492d35ddf81
GuLoader
88dab0ee02a70b83cb4c99ffa6e809c2789c9e1d55cdcd92454f73bf9d5effa4
GuLoader
8eb7939848c171ebb4a2203ad90741bcdc5c7e1feebdd3cd1b7ca4bd4dc307ed
GuLoader
97bd79e26600f552bfb5764aec1606acb63b830b5fefb807d12fe2088854a3cc
GuLoader
a2562e99d8118fcd1d9cd40b1811900664bb3bdd6de0caa5c1dfabd595091b66
GuLoader
bf10226e9ddcf64215ca45ede48c6a2d61fbfe2cb3e1cea7f0ebee38e6a3c707
GuLoader
c1e64e86dd89a5820bbb518ead2176741f91d3bf5c579e154533d44e816c1f76
GuLoader
dce92db361fb0e2b6cc00cb1b205288120af9c48b7ffdfc71b5735ad81c72b16
GuLoader
e54d5060f522ac4aae58c95d299bff21e5e6e014c941cd0a9e88485ea29e4ebc
GuLoader
+ 1'464 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:al05 discovery downloader rat spyware stealer trojan
Link:
https://tria.ge/reports/230714-h3slbsdd8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Formbook payload
Formbook
Guloader,Cloudeye
Unpacked files
SH256 hash:
4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
MD5 hash:
375e8a08471dc6f85f3828488b1147b3
SHA1 hash:
1941484ac710fc301a7d31d6f1345e32a21546af
Link:
https://www.unpac.me/results/58f00551-005a-457a-842a-2155797f9103/
SH256 hash:
6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20
MD5 hash:
2456675bfe2e68d6149c840b1d11dd61
SHA1 hash:
6c22b191eeaed5024ce6e09c598ea9457865d9d7
Link:
https://www.unpac.me/results/58f00551-005a-457a-842a-2155797f9103/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6db833ede0af/report/overview.html
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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

GuLoader

Executable exe 6db833ede0af9d00bf80c1fe134e947b1ec44bff55713251669021af1d8dac20

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2682410/
  
URLhaus
https://urlhaus.abuse.ch/url/2682413/
Cape
Cape
https://www.capesandbox.com/analysis/418631/

Comments


Avatar
zbet commented on 2023-07-14 07:15:32 UTC

url : hxxp://192.3.243.148/450/win.exe