MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5
SHA3-384 hash: 4c3f8cd3cfdb9cef97fc3f5331ddf1d3cfa59dab43e2f8331a0aefb62b351fa2a0ce2b419dc78ea846ba626ba8ce9baf
SHA1 hash: c9c3fa1f21060499a5e1ea040aa853457a0e233c
MD5 hash: 02eeca453605d5902d202e36cb44f5df
humanhash: football-hotel-wyoming-uncle
File name:Athirst.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:880'741 bytes
First seen:2023-10-03 13:50:37 UTC
Last seen:2023-10-03 14:37:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 671f2a1f8aee14d336bab98fea93d734 (182 x GuLoader, 4 x Formbook, 4 x RemcosRAT)
ssdeep 24576:INPx3TpeY7QUy3sEQyz6uc1L9J8xVCT5ATqY2BXY6+g7:mBTEY7QUy8Gz6VL9J8xVCT5AT2Y6N
Threatray 291 similar samples on MalwareBazaar
TLSH T1701523D096E0C5BFDBBF643491A6420EDFF4FE21A6A757468F003E48AD6B6C18729344
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)
Reporter malwarelabnet
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
279
Origin country :
CA CA
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.69558489.11698.24527.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Gathering data
Verdict:
Suspicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed remcos shell32 threat virus
Link:
https://www.filescan.io/uploads/651c1c491e07d7e1e9ac1284/reports/523f788c-f5a4-4be7-96ec-5e116cdc8dcc/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/be86d937-14f5-4af3-955d-2dcb3908929f
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1318751
Signature
Antivirus / Scanner detection for submitted sample
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1318751 Sample: Athirst.exe Startdate: 03/10/2023 Architecture: WINDOWS Score: 100 31 googlehosted.l.googleusercontent.com 2->31 33 drive.google.com 2->33 35 doc-10-2g-docs.googleusercontent.com 2->35 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 2 other signatures 2->47 10 Athirst.exe 32 2->10         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 51 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->51 53 Tries to detect Any.run 10->53 14 Athirst.exe 6 10->14         started        signatures6 process7 dnsIp8 37 googlehosted.l.googleusercontent.com 142.250.189.1, 443, 49768 GOOGLEUS United States 14->37 39 drive.google.com 142.250.189.14, 443, 49767 GOOGLEUS United States 14->39 55 Modifies the context of a thread in another process (thread injection) 14->55 57 Tries to detect Any.run 14->57 59 Maps a DLL or memory area into another process 14->59 61 Queues an APC in another process (thread injection) 14->61 18 RAVCpl64.exe 14->18 injected signatures9 process10 process11 20 systray.exe 18->20         started        23 autochk.exe 18->23         started        signatures12 49 Maps a DLL or memory area into another process 20->49 25 explorer.exe 2 1 20->25 injected 27 RrxuxXYgCmZtjLxpRQqzXAO.exe 20->27 injected process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-10-02 10:15:40 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
16 of 38 (42.11%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=szby2czqm4zxyojgm435etnzgzawfdjb4zq6kf2wrtotcaqhapkq._file
Verdict:
malicious
Similar samples:
09d071d33e9aedd10788a8fb405416f40be21301f741e1c2690007cfad11a219
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6518dc835d22e7520ce00460a18304bce53a4dee89b4236dcacf3b4f071868d1
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6eeeb05646dc1c6db8f8fb818a3148548100334ec73108506e5434e5f18b8888
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87a8c6294c7bfeece375857edf3b1a16a2a7c1d42fc9f2463e31f45b36135ef1
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8de44c6d5f3c81b21ca61235a70d87c705c3b47127c9815628df1e1b1344a32b
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a71c9e5f6f83bccde192cff4982c7483ceaa6c3f9e6b309f0c36cedfccf3e837
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ccb00726db19c3c19f4d2747fdc43b1a1bb6ed8d902ed9c45caf5fae7ad0de55
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f597a169eff0fcb60de34630635da598c0b90ff4c96764844d0aebca18fa3988
GuLoader
+ 281 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/231003-q5tkeada32/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1
MD5 hash:
dd87a973e01c5d9f8e0fcc81a0af7c7a
SHA1 hash:
c9206ced48d1e5bc648b1d0f54cccc18bf643a14
Link:
https://www.unpac.me/results/92990404-f277-4643-a452-35daa8d9190b/
SH256 hash:
96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5
MD5 hash:
02eeca453605d5902d202e36cb44f5df
SHA1 hash:
c9c3fa1f21060499a5e1ea040aa853457a0e233c
Link:
https://www.unpac.me/results/92990404-f277-4643-a452-35daa8d9190b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/96438d0b3067337c39266737d24db93641628d21e661e517568cdd31020703d5

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

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