MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb2a2537987e45c8461d40a0ec6c24215920519257134db91dd1369ff5abf342. 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: 6


Intelligence 6 IOCs YARA File information Comments 1

SHA256 hash: cb2a2537987e45c8461d40a0ec6c24215920519257134db91dd1369ff5abf342
SHA3-384 hash: 9d20f1ba1a142ba17af6296b736a3d84587963264bb4da1874cdf8f0bb8b42ad5bcca82fcd03d390d12fcb0db0f7533e
SHA1 hash: 001bb7b5b8d63e505661d7e4a178d08abe6bbad7
MD5 hash: 08730cdd286a4c9d46b38bb6545ac311
humanhash: neptune-emma-artist-mike
File name:08730cdd286a4c9d46b38bb6545ac311
Download: download sample
Signature GuLoader
File size:271'464 bytes
First seen:2021-07-19 18:10:32 UTC
Last seen:2021-07-19 18:38:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ce5c4ac311690d884b7f964e897cf716 (2 x GuLoader)
ssdeep 1536:d/k1xdvMuWnLtmBcSa9O/C0UzIY+SpAkaYQryC7AfT/k1xD:5ktvMu8GcSaw/RQ80fDkz
Threatray 5'132 similar samples on MalwareBazaar
TLSH T1DF443AA466D9FCCBD8B8B930AB44BD1D8279A4749E4C879578705328EE71FC104B4E3B
Reporter zbetcheckin
Tags:32 exe GuLoader

Intelligence


File Origin
# of uploads :
2
# of downloads :
195
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CMA-CGM BOOKING CONFIRMATION.xlsx
Verdict:
Malicious activity
Analysis date:
2021-07-19 17:40:28 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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.
Result
Threat name:
GuLoader FormBook
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found malware configuration
GuLoader behavior detected
Hides threads from debuggers
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
Potentially malicious time measurement code found
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 450884 Sample: F63V4i8eZU.exe Startdate: 19/07/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 10 F63V4i8eZU.exe 1 2->10         started        process3 signatures4 52 Contains functionality to detect hardware virtualization (CPUID execution measurement) 10->52 54 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 10->54 56 Tries to detect Any.run 10->56 58 3 other signatures 10->58 13 F63V4i8eZU.exe 6 10->13         started        process5 dnsIp6 34 kinmirai.org 133.130.104.18, 443, 49746 INTERQGMOInternetIncJP Japan 13->34 60 Modifies the context of a thread in another process (thread injection) 13->60 62 Tries to detect Any.run 13->62 64 Maps a DLL or memory area into another process 13->64 66 3 other signatures 13->66 17 explorer.exe 13->17 injected signatures7 process8 dnsIp9 28 www.howtovvbucks.com 81.17.18.196, 49753, 80 PLI-ASCH Switzerland 17->28 30 137gate.com 31.44.185.28, 80 PINDC-ASRU Russian Federation 17->30 32 22 other IPs or domains 17->32 44 System process connects to network (likely due to code injection or exploit) 17->44 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2021-07-19 18:11:07 UTC
AV detection:
6 of 27 (22.22%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Unpacked files
SH256 hash:
cb2a2537987e45c8461d40a0ec6c24215920519257134db91dd1369ff5abf342
MD5 hash:
08730cdd286a4c9d46b38bb6545ac311
SHA1 hash:
001bb7b5b8d63e505661d7e4a178d08abe6bbad7
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

GuLoader

Executable exe cb2a2537987e45c8461d40a0ec6c24215920519257134db91dd1369ff5abf342

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-07-19 18:10:33 UTC

url : hxxp://180.214.239.39/disk/.svchost.exe