MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1. 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: 617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1
SHA3-384 hash: d4a22a9d49afdb0f83fd26c8b7467ac32ab0c21ea3ef85227ffba736cad89837e5a9a86a6bc828592bb8b81d9a682d70
SHA1 hash: 8e42c9f4283d9544b63b77fe886abcffea2efe14
MD5 hash: 398168319933805c70238c679be79bdb
humanhash: pip-pizza-mango-lion
File name:398168319933805c70238c679be79bdb
Download: download sample
Signature GuLoader
Create hunting rule
File size:331'448 bytes
First seen:2023-08-02 17:04:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (295 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 6144:jBe4i9+vu/x+TjVA0uIfeDcGyguqfWrUU4aeZk7v1jEoTEvFGCNE:7i9nuxuI2DhuGsf8W7Nj/EvFlu
TLSH T10B6401551587947FDC416B70AA3FD265E6FFBE40BD12B2EB13180A63883C4FE9A062C5
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:2023-03-19T01:21:58Z
Valid to:2026-03-18T01:21:58Z
Serial number: 5830ff75fd617ad188cb81f848285d6260da0775
Thumbprint Algorithm:SHA256
Thumbprint: 361a8b9f23ce3395c5d7ffda6d062610d45aadbe215ee18ff314547e8065f735
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
Quotation.xls
Verdict:
Malicious activity
Analysis date:
2023-08-02 15:38:16 UTC
Tags:
opendir exploit cve-2017-11882 loader guloader
Link:
https://app.any.run/tasks/b4e9dead-9ae1-4356-85d9-1c5039a8f558

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/439883/
Detection(s):
SecuriteInfo.com.Mal.Generic-S.31020.16397.20236.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64ca8cc094fb102ea38c1454/reports/2fbee396-af5b-453a-9a6e-6219f223bbad/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1
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/89f104b1-3303-4ab5-9ff2-92bc171b29c6
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1284589
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1284589 Sample: euCAWf25FG.exe Startdate: 02/08/2023 Architecture: WINDOWS Score: 100 32 www.zdmajkpj.click 2->32 34 www.yyoqui.com 2->34 36 26 other IPs or domains 2->36 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 7 other signatures 2->60 11 euCAWf25FG.exe 28 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\System.dll, PE32 11->30 dropped 68 Tries to detect Any.run 11->68 15 euCAWf25FG.exe 6 11->15         started        signatures6 process7 dnsIp8 44 23.95.60.83, 50228, 80 AS-COLOCROSSINGUS United States 15->44 46 Modifies the context of a thread in another process (thread injection) 15->46 48 Tries to detect Any.run 15->48 50 Maps a DLL or memory area into another process 15->50 52 2 other signatures 15->52 19 explorer.exe 5 1 15->19 injected signatures9 process10 dnsIp11 38 virtusnets.com 192.254.233.191, 50231, 80 UNIFIEDLAYER-AS-1US United States 19->38 40 architectjewelry.com 185.215.4.21, 50240, 80 TVHORADADAES Denmark 19->40 42 11 other IPs or domains 19->42 62 System process connects to network (likely due to code injection or exploit) 19->62 23 msiexec.exe 19->23         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 23->64 66 Maps a DLL or memory area into another process 23->66 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-08-02 16:35:23 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mf7nydpb457rqixph2jzq33qk5mlu7xdrnmxexibz5wkxvozr3yq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/230802-vlttaahb2x/
Behaviour
Enumerates physical storage devices
Program crash
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1
MD5 hash:
398168319933805c70238c679be79bdb
SHA1 hash:
8e42c9f4283d9544b63b77fe886abcffea2efe14
Link:
https://www.unpac.me/results/65c0f72a-eb72-4f5d-a337-2819723c9116/
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/617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1

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 617edc0de1e77f1822ef3e93986f705758ba7ee38b59725d01cf6cabd5d98ef1

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/439883/
  
URLhaus
https://urlhaus.abuse.ch/url/2696181/

Comments


Avatar
zbet commented on 2023-08-02 17:04:51 UTC

url : hxxp://103.6.248.9/T018W/wininit.exe