MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15
SHA3-384 hash: d9cf2978b3338a2d4eddd5668e0d09e9dc7f2398369acbca53db1c24086f4f09b9c059ff76ec7033938709c2190ff446
SHA1 hash: 43117cc27581457880b0c1c778e1c53e1a8e00d1
MD5 hash: 12e7a25be11590e2f55d97dbc5a6111e
humanhash: charlie-football-zebra-ohio
File name:Request price quotation.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:337'896 bytes
First seen:2022-10-31 13:22:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook)
ssdeep 6144:ElJZfNG9UslY+9yojDDbFNwaEX49qMCedEg+6go3wKVme2ZmqpKwjr:Elke6RdlNwxXMqMjEL6t3ZvSmqpK8
Threatray 23 similar samples on MalwareBazaar
TLSH T1FB741281A5E08056FAE24F3015739E6943B3BF183D7D924B476C7769273BBC28A27247
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 0d694c8f0f232970 (1 x GuLoader)
Reporter GovCERT_CH
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2021-11-01T05:24:48Z
Valid to:2024-10-31T05:24:48Z
Serial number: -6f663645aa10e446
Thumbprint Algorithm:SHA256
Thumbprint: 7d2e426ad57c64dcac8057482029d715419cebf1d4bd96a29a2122ce5b065dfb
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
452
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request price quotation.img
Verdict:
Malicious activity
Analysis date:
2022-10-31 06:47:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4130e464-e9cf-4321-9f68-471f17befeaa

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/326420/
Detection(s):
SecuriteInfo.com.Trojan.Win32.DownLoader4.KTT.2386.24504.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/635fcc37a5db8d309cbc085f/reports/5f53c921-5350-4612-9cd2-018cc036da6f/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de2016c7-de74-487c-8ed9-9fe706511d6a
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1101697
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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 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 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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 734358 Sample: Request price quotation.exe Startdate: 31/10/2022 Architecture: WINDOWS Score: 100 33 www.volpesemijoias.com 2->33 35 www.supremereiki.com 2->35 37 25 other IPs or domains 2->37 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 10 Request price quotation.exe 2 39 2->10         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 31 C:\Users\user\AppData\...\Frozen Throne.exe, PE32 10->31 dropped 65 Tries to detect Any.run 10->65 14 Request price quotation.exe 6 10->14         started        signatures6 process7 dnsIp8 45 trianum.co.ke 162.241.6.122, 443, 49836 UNIFIEDLAYER-AS-1US United States 14->45 67 Modifies the context of a thread in another process (thread injection) 14->67 69 Tries to detect Any.run 14->69 71 Maps a DLL or memory area into another process 14->71 73 2 other signatures 14->73 18 RAVCpl64.exe 14->18 injected signatures9 process10 process11 20 msdt.exe 13 18->20         started        signatures12 55 Tries to steal Mail credentials (via file / registry access) 20->55 57 Tries to harvest and steal browser information (history, passwords, etc) 20->57 59 Writes to foreign memory regions 20->59 61 3 other signatures 20->61 23 explorer.exe 6 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 39 www.bibliotecaclp.live 185.27.134.112, 49878, 49879, 49880 WILDCARD-ASWildcardUKLimitedGB United Kingdom 23->39 41 volpesemijoias.com 108.167.151.74, 49887, 49888, 49889 UNIFIEDLAYER-AS-1US United States 23->41 43 16 other IPs or domains 23->43 63 System process connects to network (likely due to code injection or exploit) 23->63 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qphrqngb5pckwn646bzucihpvwzmum2u4kgarb5kegepappdtikq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
01402a21670aff5459a82853d36167e0226dec7fac8f1ccc5cb94ac2fe421957
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166908f0b9866d84c4a0828b4d664aa4b1049d403ebe90798caa4f4d93b26e00
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37c86f121c6f2444ba270e021f0fe141de6dac7cba6267e9a873f72eabb6bbff
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43efe491955b4d4d340b18b7de78784276f048d8d5b99f9fff0284d563226286
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65e331380851f9aced88e0aa9e78e70d04131fa073c5278f6e7fbeb0dff82267
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6d43c96f1425abf6538f9b526b768f2fa284dcd9fec93e5b5cf001a4f83fdb89
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7db5e626c33513029a8c994e929219469a2d4f36bbd9557299d4b8bec1673fc1
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913172750585a6984011e58a573a38cd7ed051e2145690cf7a4b53b1ca49725c
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a1853750e48152050b5f04f08ba261a37c49fd039435ac4c2683328febd4fa92
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a68190f559500888abbd58c7b35794837352ac2127fb1dd1553c659eba5015a3
GuLoader
+ 13 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/221031-qmskdsbghq/
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a4058365-5d61-43c4-b4af-1bec08e01c96
Unpacked files
SH256 hash:
2b13e318be8b41deffa80c3bd7fdec20de9688d5ceedfbb56cf43d4996a62bed
MD5 hash:
ed09856431648fb9399b75127b85ff7e
SHA1 hash:
f8d1fb0e0edb8069a89cd6054e6580d2a6fa1cdd
Link:
https://www.unpac.me/results/135866a0-81fe-4cc0-bd39-5805d46bb0ae/
SH256 hash:
7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528
MD5 hash:
fc90dfb694d0e17b013d6f818bce41b0
SHA1 hash:
3243969886d640af3bfa442728b9f0dff9d5f5b0
Link:
https://www.unpac.me/results/135866a0-81fe-4cc0-bd39-5805d46bb0ae/
SH256 hash:
83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15
MD5 hash:
12e7a25be11590e2f55d97dbc5a6111e
SHA1 hash:
43117cc27581457880b0c1c778e1c53e1a8e00d1
Link:
https://www.unpac.me/results/135866a0-81fe-4cc0-bd39-5805d46bb0ae/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15

File information

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

Malspam

GuLoader

Executable exe 83cf1834c1ebc4ab37dcf0734120efadb2ca3354e28c0887aa2188f03de39a15

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/326420/

Comments