MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd
SHA3-384 hash: 0312ecb5883ea8ea030cbffb297641c3cc2b4f51fa3a972657b13af035cafdbff1d0acea646e9c316ce8461c188c3ced
SHA1 hash: d7c9c869add707b5b41a1f11f5c82bba94eabbd7
MD5 hash: 9f23ccacd955392c62b1b5d4be4ed690
humanhash: washington-beryllium-ceiling-comet
File name:QUOTATION.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:690'832 bytes
First seen:2023-03-20 13:46:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e9c0657252137ac61c1eeeba4c021000 (53 x GuLoader, 26 x RedLineStealer, 17 x AgentTesla)
ssdeep 12288:2V5hWKql4jLy5cdg3ExKcZnY4UKwp7hVOZCbgjvwP:2V5hC4icdg1cUNEZCbgj8
Threatray 580 similar samples on MalwareBazaar
TLSH T1A1E42317758392D6F67B45FB5E6EA72603B32F670862828FB3E937B18874910446630F
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 8488c8c888c8c888 (9 x GuLoader, 1 x Formbook)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-22T00:46:17Z
Valid to:2025-04-21T00:46:17Z
Serial number: 122a79ba407440e874a3850af2969681469c2b80
Thumbprint Algorithm:SHA256
Thumbprint: a4139cd92c018c5e22e64c59a153598db90cde89114105f7c95c552d2c985db3
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION.exe
Verdict:
Malicious activity
Analysis date:
2023-03-20 13:53:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bd74c58e-86b7-4e3c-b083-a24bae579a0d

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/375954/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/74297/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
83%
Tags:
buer comodo guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/641863dada1bbe29caf929e2/reports/744cf56a-f28d-4834-9140-38b66e7025f4/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd
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/9b30b40f-a810-44ba-9948-21c5dfa8124f
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.rans.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1197726
Signature
Found potential ransomware demand text
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
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 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 Generic Downloader
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 830630 Sample: QUOTATION.exe Startdate: 20/03/2023 Architecture: WINDOWS Score: 100 35 www.texasgent.com 2->35 37 www.solya-shop.com 2->37 39 20 other IPs or domains 2->39 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 6 other signatures 2->55 10 QUOTATION.exe 1 38 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\System.dll, PE32 10->27 dropped 29 C:\Users\user\AppData\...\Utaalmodiges.Taa169, data 10->29 dropped 31 C:\Users\user\AppData\Local\...\System.dll, PE32 10->31 dropped 33 6 other files (none is malicious) 10->33 dropped 67 Tries to detect Any.run 10->67 14 QUOTATION.exe 6 10->14         started        signatures6 process7 dnsIp8 47 www.wittofitentertainment.com 162.240.73.101, 443, 49835 UNIFIEDLAYER-AS-1US United States 14->47 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 75 2 other signatures 14->75 18 explorer.exe 2 1 14->18 injected signatures9 process10 dnsIp11 41 www.interactive-media.ru 88.212.206.251, 49841, 49915, 80 UNITEDNETRU Russian Federation 18->41 43 www.brightfms.com 81.17.18.196, 49902, 49903, 49904 PLI-ASCH Switzerland 18->43 45 12 other IPs or domains 18->45 57 System process connects to network (likely due to code injection or exploit) 18->57 22 help.exe 13 18->22         started        signatures12 process13 signatures14 59 Tries to steal Mail credentials (via file / registry access) 22->59 61 Tries to harvest and steal browser information (history, passwords, etc) 22->61 63 Writes to foreign memory regions 22->63 65 3 other signatures 22->65 25 firefox.exe 22->25         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-03-19 23:21:06 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pogvbldhwlyn4xrvsciclta2ruk7l3orqz2ypdd2viy6h7udvh6q._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
01ff3a6ce715226b103f3bf80bdb44737fc8bccd38119a7372d8cdcfd3b034c7
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478e966f1f7aa4d1479c58f0736b4355cd04d2b10c088700e89eb016da7136c5
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48dcf0afe635fd456a6914465d2b79e61ddbd57d304203eeeb14cafbf5dd1e81
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51054c5181fc248a1642dc3a5cdb7f353aaf5d136aa20bdc59084970e74c5a8b
GuLoader
9963c30bed4a82426aa769e6239f538dc038be8bd59b1d43534456b54b29880c
GuLoader
9a9d7a41c404b9044a82727996d53222d996f03d71e4839245dbeeaf4c685f77
GuLoader
a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
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a96ec414b99747cf8859a77e2d05ea24053db3fa343474a007180dfefda658ca
GuLoader
bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3
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c2dbf46751c346aa33fe9d846bf934a7f880f37baee41539917e074b15ada779
GuLoader
+ 570 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/230320-q3jx7afg5z/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
MD5 hash:
0063d48afe5a0cdc02833145667b6641
SHA1 hash:
e7eb614805d183ecb1127c62decb1a6be1b4f7a8
Link:
https://www.unpac.me/results/cba7c300-21ad-4e87-b37b-ee9e05d36203/
Parent samples :
5312214b15330113f6eab71565e1e3c7d1ee3b59daa6703c271aaf3b192e6809
02fca6ef5d9d8b1eb29f7ac8ea0573b504ea7f06c215e091791653b40fe1329a
cc53accc69b32c2507210ea70d1d56aa84dbe354a7f79577df180179ea797427
045a7318a9e2e550208c0c7e9fc805068df19fa73823ac3acaa049a46c4045ee
f2a883a0e4b01c72b0f063df3be5a0102e5c8fbaedc39c8d35c632b200599283
dffefbde27442b9095388b1871ffdc101c430b9a814138be4f962328a5b73fde
e0fb60da371912c158861c9660632d58e45cfcff12351cc9e03f497f319eb5de
904f69a4bed3844273cce1676e8920794815af4c1527e560bbc1bc44b5b8457a
SH256 hash:
3079304b199ba060ec2f8caded24c98bf11c12618188401fe51ced76ef308725
MD5 hash:
3457e195097f2f56aa095b14e8589ea7
SHA1 hash:
69ec8e3b73a72cc0ae06d53de7aed9668dd29dcb
Link:
https://www.unpac.me/results/cba7c300-21ad-4e87-b37b-ee9e05d36203/
SH256 hash:
d99c171ddf89cde390f2da6152118e5fe26ec9bda1eab6152c5d8e2caa3855bf
MD5 hash:
8efc64cc3efadaedcd93b04ef7253de6
SHA1 hash:
ed6cb522b294134ab1d35597655bd4dce5a08a92
Link:
https://www.unpac.me/results/cba7c300-21ad-4e87-b37b-ee9e05d36203/
SH256 hash:
7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd
MD5 hash:
9f23ccacd955392c62b1b5d4be4ed690
SHA1 hash:
d7c9c869add707b5b41a1f11f5c82bba94eabbd7
Link:
https://www.unpac.me/results/cba7c300-21ad-4e87-b37b-ee9e05d36203/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7b8d50ac67b2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/7b8d50ac67b2f0de5e35909025cc1a8d15f5edd18675878c7aaa31e3fe83a9fd

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
Rule name:PE_Potentially_Signed_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.

Cape
Cape
https://www.capesandbox.com/analysis/375954/

Comments