MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b690ddae98543c2dcd21076e1981e49cb6f0a430484484e49e50f26cad27e91. 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: 8


Intelligence 8 IOCs YARA File information Comments 1

SHA256 hash: 1b690ddae98543c2dcd21076e1981e49cb6f0a430484484e49e50f26cad27e91
SHA3-384 hash: 084033b7d451fbe19f638bd926b9c42d2e826ef2bd178e9bb6bc3ea7c7b6fbbcfb3e1381d9281ad991a3dbc53166ad08
SHA1 hash: f8cd409609b7a55c945c4d40fd471962c50873fd
MD5 hash: da56ecddfbbecc972e0626e59b147717
humanhash: fix-fish-johnny-king
File name:da56ecddfbbecc972e0626e59b147717
Download: download sample
Signature GuLoader
File size:664'296 bytes
First seen:2022-06-24 05:20:25 UTC
Last seen:2022-07-22 10:45:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 12288:Ybklfu9PO7udf4B80hwqyCCk9hWbPESFDR+t8h5CW1P:Ybuf6suWB80CqyhkGbPFCA
Threatray 3'315 similar samples on MalwareBazaar
TLSH T1E7E4F19AFB90898BC472433399E78F212536DDBCD372990F314936297EB33C3552A15A
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 e4cadeda72767a32 (5 x GuLoader, 1 x AveMariaRAT)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:forlng forestall skibsskruers Supervisal1
Issuer:forlng forestall skibsskruers Supervisal1
Algorithm:sha256WithRSAEncryption
Valid from:2022-06-24T00:29:06Z
Valid to:2023-06-24T00:29:06Z
Serial number: 62da0a09c8d071bb
Thumbprint Algorithm:SHA256
Thumbprint: 2c418e0d97dcba6faf49b170852458f464378e306e76160e1dac8542a8b25618
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
4
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nemesis overlay packed shell32.dll wacatac
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
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
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 dropped file
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
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 651567 Sample: nYmVhqP1xA.exe Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 59 www.mgtv6.xyz 2->59 61 www.yeg1.com 2->61 63 21 other IPs or domains 2->63 83 Malicious sample detected (through community Yara rule) 2->83 85 Multi AV Scanner detection for dropped file 2->85 87 Multi AV Scanner detection for submitted file 2->87 91 4 other signatures 2->91 11 nYmVhqP1xA.exe 36 2->11         started        signatures3 89 Performs DNS queries to domains with low reputation 59->89 process4 file5 49 C:\Users\user\AppData\Roaming\...\stmt.dll, PE32+ 11->49 dropped 51 C:\Users\user\AppData\...\libwebpmux-3.dll, PE32+ 11->51 dropped 53 C:\Users\user\AppData\Roaming\...\hmmapi.dll, PE32+ 11->53 dropped 55 2 other files (none is malicious) 11->55 dropped 105 Tries to detect Any.run 11->105 15 nYmVhqP1xA.exe 6 11->15         started        signatures6 process7 dnsIp8 71 dumink.strangled.net 212.192.241.211, 49771, 80 RAPMSB-ASRU Russian Federation 15->71 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Tries to detect Any.run 15->75 77 Maps a DLL or memory area into another process 15->77 79 2 other signatures 15->79 19 explorer.exe 1 6 15->19 injected signatures9 process10 dnsIp11 65 www.belomamoz.com 154.195.95.73, 49811, 49812, 49836 PEGTECHINCUS Seychelles 19->65 67 www.celesteen.com 217.160.0.175, 49815, 49816, 49842 ONEANDONE-ASBrauerstrasse48DE Germany 19->67 69 12 other IPs or domains 19->69 47 C:\Users\user\AppData\...\l6cx7bmxkdfxcln.exe, PE32 19->47 dropped 93 System process connects to network (likely due to code injection or exploit) 19->93 95 Benign windows process drops PE files 19->95 24 cmstp.exe 1 12 19->24         started        27 l6cx7bmxkdfxcln.exe 19 19->27         started        30 autochk.exe 19->30         started        file12 signatures13 process14 file15 97 Tries to steal Mail credentials (via file / registry access) 24->97 99 Creates autostart registry keys with suspicious names 24->99 101 Tries to harvest and steal browser information (history, passwords, etc) 24->101 103 4 other signatures 24->103 32 cmd.exe 2 24->32         started        35 cmd.exe 1 24->35         started        37 cmd.exe 1 24->37         started        39 firefox.exe 24->39         started        57 C:\Users\user\AppData\Local\...\System.dll, PE32 27->57 dropped signatures16 process17 signatures18 81 Tries to harvest and steal browser information (history, passwords, etc) 32->81 41 conhost.exe 32->41         started        43 conhost.exe 35->43         started        45 conhost.exe 37->45         started        process19
Threat name:
Win32.Trojan.Shelsy
Status:
Malicious
First seen:
2022-06-24 02:05:59 UTC
File Type:
PE (Exe)
Extracted files:
40
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Enumerates physical storage devices
Program crash
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SH256 hash:
1b690ddae98543c2dcd21076e1981e49cb6f0a430484484e49e50f26cad27e91
MD5 hash:
da56ecddfbbecc972e0626e59b147717
SHA1 hash:
f8cd409609b7a55c945c4d40fd471962c50873fd
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 1b690ddae98543c2dcd21076e1981e49cb6f0a430484484e49e50f26cad27e91

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-06-24 05:20:30 UTC

url : hxxp://212.192.241.211/rait/Integrals1.exe