MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def. 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: c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def
SHA3-384 hash: fad7c4f08713ebce8aa6fc5daa42ca73bd9a910829cda0d4ccee3436f10429502a2c2a818bc985375bd7fbc9e43a2e31
SHA1 hash: 6de93700afae4c5f064355969cefbd7e3708c0a0
MD5 hash: 40cf72c6c0002187403c7a8e252b0322
humanhash: pennsylvania-artist-uniform-princess
File name:Reconfirm the bank details.pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:416'074 bytes
First seen:2022-03-07 12:54:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 12288:/3b8JJPOCUohQVdpArOmZM62cH7smVVmGtt/kT:/3b8rOCUohQV4hZM62cH7s0Zw
Threatray 833 similar samples on MalwareBazaar
TLSH T190941241A6E1C413E8E2AB32C8365BF85AFD9D16D4B8AF5B13247E4EBE731015F0A701
File icon (PE):PE icon
dhash icon 5210b2ec68616464 (1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/247906/
Detection(s):
SecuriteInfo.com.generic.ml.25333.22538.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/8485/overview
Behaviour
MalwareBazaar
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:
Malicious
Link:
https://analyze.intezer.com/analyses/0e35cc68-67fb-4062-9c8e-e261f8c74854
Result
Threat name:
AgentTesla GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/951791
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 584272 Sample: Reconfirm the bank details.... Startdate: 07/03/2022 Architecture: WINDOWS Score: 100 24 x1.i.lencr.org 2->24 26 quantgemfxinvest.com 2->26 28 4 other IPs or domains 2->28 36 Found malware configuration 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected GuLoader 2->40 42 5 other signatures 2->42 8 Reconfirm the bank details.pdf.exe 26 2->8         started        signatures3 process4 file5 18 C:\Users\user\AppData\Local\...\nsDialogs.dll, PE32 8->18 dropped 20 C:\Users\user\AppData\Local\...\System.dll, PE32 8->20 dropped 22 C:\Users\user\AppData\Local\Temp\7zG.exe, PE32+ 8->22 dropped 44 Writes to foreign memory regions 8->44 46 Tries to detect Any.run 8->46 48 Hides threads from debuggers 8->48 12 CasPol.exe 13 8->12         started        signatures6 process7 dnsIp8 30 quantgemfxinvest.com 185.156.219.141, 49791, 587 SOLTIAES Spain 12->30 32 googlehosted.l.googleusercontent.com 142.250.185.97, 443, 49780 GOOGLEUS United States 12->32 34 drive.google.com 142.250.186.46, 443, 49777 GOOGLEUS United States 12->34 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->52 54 Tries to steal Mail credentials (via file / registry access) 12->54 56 5 other signatures 12->56 16 conhost.exe 12->16         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def/
Threat name:
Win32.Downloader.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-03-07 12:55:13 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
12 of 27 (44.44%)
Threat level:
  3/5
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1432f0240c91b7439722df807e35ef9b4cc9b126f3e5d42cedb27b28751118d7
GuLoader
4b1e07f367e2c29e90cad5cd928dc1572dbcedfb04cd722fba01c67a7d349361
GuLoader
5ec36ac5ba843f29bb0dc75d7d527ab9cee34a681bad704a89fd5ed12cdea337
GuLoader
77353f06427f5e7d0e4c28e4d5690700a2cf6789edc0f9c51682dd20bb65bf78
GuLoader
b076cbf14c6f0a9bbb4aaaf8242622cefb6bccdf2aef9e130b48a0552bb5016f
GuLoader
c1dc214e929541d1f9d0ede9422bf40f61f766de5e8a32bc2fb2d73a91e4a71e
GuLoader
cfc09cd2a2109a174ccbc346779f2e19316be4601173e2e85c3e4314cc139017
GuLoader
dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
GuLoader
dd44eb26a328f1e86823339666e1b1237ad7b1d880694c1b8fb8164b931aa512
GuLoader
fe5d8bb940112ba98d51c57496fa25e242d3f6e4b28b183bfe2ef3ec2c393e9e
GuLoader
+ 823 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/220307-p5ssfaegb4/
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
1e29e6e5cc0cf80e703ba15ce7a480f5b8b556ca99d4e7dc226e542985856311
MD5 hash:
1f3c29ce12103b1c3455bcefa1a867b6
SHA1 hash:
2066b290e91e09d171a941dc9c9bf87ffdc16f51
Link:
https://www.unpac.me/results/f53cf349-6c9e-44bf-97f3-9a7b1e0aa4d1/
SH256 hash:
37205d5704685c3ce192a6c3e84341a37766dad7b086064bee76d53e9213d279
MD5 hash:
dd0762e0f6d99a2eb73ff149dc4cad96
SHA1 hash:
0afdf49a473f1df91222d5c89fd57cab075a24a2
Link:
https://www.unpac.me/results/f53cf349-6c9e-44bf-97f3-9a7b1e0aa4d1/
SH256 hash:
c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def
MD5 hash:
40cf72c6c0002187403c7a8e252b0322
SHA1 hash:
6de93700afae4c5f064355969cefbd7e3708c0a0
Link:
https://www.unpac.me/results/f53cf349-6c9e-44bf-97f3-9a7b1e0aa4d1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def

File information

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

Malspam

GuLoader

Executable exe c5cbf9085eac3f9c2b9cbbf939c90f00d041f0f598b7762af7b371fe3cb61def

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/247906/

Comments