MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46. 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 File information Comments

SHA256 hash: 2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46
SHA3-384 hash: 2c5dbbe61ebdc8478669f5d8b773b2ca0d6a4b14fefd7fac907da95dfeaff6dbe775300ed044c1e2397506ea792d0c54
SHA1 hash: c0a1f266ea8725fdaaecccdc3083f765063907d1
MD5 hash: 4ac18353fb4ce9305aeefbb066f07675
humanhash: summer-social-rugby-nebraska
File name:2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46
Download: download sample
Signature GuLoader
File size:130'736 bytes
First seen:2022-08-04 11:30:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPuYOgb0ST8GyD7Wgh584i1RYz2FExb9:HNeZj/NTI/84i1Rxyx9
Threatray 3'755 similar samples on MalwareBazaar
TLSH T1D8D3AE211A91DDE6ECB315372C6E8F6A4BB7B90F14105B83B3E076582E53A81D63E703
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon a296aa968eaa9600 (3 x GuLoader, 1 x AsyncRAT)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Skfuldene Ationsvejledningen Magnetizable
Issuer:Skfuldene Ationsvejledningen Magnetizable
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-19T15:14:34Z
Valid to:2025-07-18T15:14:34Z
Serial number: -12c3e1b3a811acde
Thumbprint Algorithm:SHA256
Thumbprint: 0fffee1cf503a2632a4b6fe6e2be0db5d149e3b1bf238b524e7c88d2f44d298f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
357
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46
Verdict:
Malicious activity
Analysis date:
2022-08-04 11:29:57 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Creating a file in the Windows directory
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nemesis overlay packed shell32.dll
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:
FormBook, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Multi AV Scanner detection for domain / URL
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
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 resolve many domain names, but no domain seems valid
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 678695 Sample: zH4aQ6xq4y.exe Startdate: 04/08/2022 Architecture: WINDOWS Score: 100 31 www.rahabproperty.com 2->31 33 www.okaywilly.com 2->33 35 40 other IPs or domains 2->35 45 Snort IDS alert for network traffic 2->45 47 Multi AV Scanner detection for domain / URL 2->47 49 Malicious sample detected (through community Yara rule) 2->49 53 7 other signatures 2->53 10 zH4aQ6xq4y.exe 2 30 2->10         started        signatures3 51 Tries to resolve many domain names, but no domain seems valid 33->51 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 67 Tries to detect Any.run 10->67 14 zH4aQ6xq4y.exe 1 8 10->14         started        signatures6 process7 dnsIp8 43 3sixtyd.nl 91.192.37.9, 49754, 80 CJ2-ASNL Netherlands 14->43 69 Modifies the context of a thread in another process (thread injection) 14->69 71 Tries to detect Any.run 14->71 73 Maps a DLL or memory area into another process 14->73 77 2 other signatures 14->77 18 explorer.exe 1 14->18 injected 22 RAVCpl64.exe 14->22 injected signatures9 75 Tries to resolve many domain names, but no domain seems valid 43->75 process10 dnsIp11 37 lucaheesomphotography.com 156.38.174.34, 49815, 80 xneeloZA South Africa 18->37 39 www.dianna36.com 67.223.117.72, 49772, 49786, 49812 VIMRO-AS15189US United States 18->39 41 20 other IPs or domains 18->41 55 System process connects to network (likely due to code injection or exploit) 18->55 57 Uses netsh to modify the Windows network and firewall settings 18->57 24 netsh.exe 13 18->24         started        signatures12 process13 signatures14 59 Tries to steal Mail credentials (via file / registry access) 24->59 61 Tries to harvest and steal browser information (history, passwords, etc) 24->61 63 Writes to foreign memory regions 24->63 65 3 other signatures 24->65 27 firefox.exe 24->27         started        process15
Threat name:
Win32.Trojan.Nemesis
Status:
Malicious
First seen:
2022-07-20 07:19:30 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader discovery downloader
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SH256 hash:
2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46
MD5 hash:
4ac18353fb4ce9305aeefbb066f07675
SHA1 hash:
c0a1f266ea8725fdaaecccdc3083f765063907d1
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.

Comments