MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658
SHA3-384 hash: ecd5268b81a320827492fa17b11e290361c72cc26abaa0fd99f7bb9b1cb911a0876b4ea7963d31a0ad2e026e1b060d98
SHA1 hash: 8937059e8abbcc3bcebf43b9f0634595faada21b
MD5 hash: 03c82cfd1be0749980cf76733335c350
humanhash: three-sweet-uniform-fish
File name:PO 00277287 and PO 00277282.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:404'880 bytes
First seen:2022-08-25 10:35:34 UTC
Last seen:2022-08-25 11:41:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 6144:SmOPPJJjtyKOWZAt9QV+SRPxOJXnE/TwoFVI50gJtnlOzNht7FAe8uM3bdIcQI:mJabr/sRPIE7UtnUliuM3bdIW
TLSH T1E08423297371C166DB738DB15D95A866BF70A9E83440870E2F829B6D7E73082CADD343
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Tangentiality Overpopulation
Issuer:Tangentiality Overpopulation
Algorithm:sha256WithRSAEncryption
Valid from:2022-02-03T06:34:18Z
Valid to:2025-02-02T06:34:18Z
Serial number: 635788e257ddef5e
Thumbprint Algorithm:SHA256
Thumbprint: 59f562f42949fe53d54fa42745a67c8311b0587e6531ee286430ee9f65e475e7
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
298
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 00277287 and PO 00277282.exe
Verdict:
Malicious activity
Analysis date:
2022-08-25 10:36:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/595e1e98-4e03-47a0-b3b0-bbf18645c7d8

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/301096/
Detection(s):
SecuriteInfo.com.generic.ml.19039.4206.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Searching for the window
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/30047/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6307509ef205e2ee7676d84d/reports/a54fa02e-624a-442d-8c29-1e824b1853e4/overview
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/a13c7b12-24fd-463f-b166-135e03e87d58
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1057602
Signature
Installs a global keyboard hook
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Obfuscated command line found
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 690119 Sample: PO 00277287 and PO 00277282.exe Startdate: 25/08/2022 Architecture: WINDOWS Score: 100 38 mail.egigroup-ks.com 2->38 40 googlehosted.l.googleusercontent.com 2->40 42 2 other IPs or domains 2->42 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected GuLoader 2->52 54 Yara detected AgentTesla 2->54 56 3 other signatures 2->56 8 PO 00277287 and PO 00277282.exe 5 42 2->8         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\System.dll, PE32 8->36 dropped 58 Obfuscated command line found 8->58 60 Writes to foreign memory regions 8->60 62 Tries to detect Any.run 8->62 12 CasPol.exe 19 8->12         started        16 CasPol.exe 8->16         started        18 cmd.exe 8->18         started        20 63 other processes 8->20 signatures6 process7 dnsIp8 44 mail.egigroup-ks.com 173.254.30.144, 49774, 49777, 587 UNIFIEDLAYER-AS-1US United States 12->44 46 drive.google.com 172.217.18.14, 443, 49772 GOOGLEUS United States 12->46 48 googlehosted.l.googleusercontent.com 172.217.23.97, 443, 49773 GOOGLEUS United States 12->48 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->64 66 Tries to steal Mail credentials (via file / registry access) 12->66 68 Tries to harvest and steal ftp login credentials 12->68 74 3 other signatures 12->74 22 conhost.exe 12->22         started        70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->70 72 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->72 24 Conhost.exe 18->24         started        26 Conhost.exe 20->26         started        28 Conhost.exe 20->28         started        30 Conhost.exe 20->30         started        32 60 other processes 20->32 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-08-25 08:53:38 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i4lragwzwqz5xltcmiz3fwjob7zxxeq6yd7dj2l45fdj7lfikzma._file
Verdict:
unknown
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220825-mm8ptsbegk/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
938580b466533dfa1461e9858fd106b60e1a52b713380915cc03afd3e4b4573c
MD5 hash:
98bdb37511634dad8d1236d91d373b26
SHA1 hash:
778cf74b4f8860cc378fa4e61aeba318197783ce
Link:
https://www.unpac.me/results/ee1e9f36-fbb8-4bdf-bc35-a1a46f43c79e/
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/ee1e9f36-fbb8-4bdf-bc35-a1a46f43c79e/
SH256 hash:
ad8f1e6623870d6aaafabd47dff5a775dd240ecfc6675e33f308045b6a536f5d
MD5 hash:
92a6b90730f4888fd07bac1dccda95cb
SHA1 hash:
a11493feb7e98591f5a9b965c23b5b537d84dbec
Link:
https://www.unpac.me/results/ee1e9f36-fbb8-4bdf-bc35-a1a46f43c79e/
SH256 hash:
f7d98be26c813724c7cb673b53475fe660d3ef4f9930d57a550c91578c660e91
MD5 hash:
723646252e79cbb15c7817360f93a6d2
SHA1 hash:
c9ce61d71b7377456ab49c823fc756336b01f7b5
Link:
https://www.unpac.me/results/ee1e9f36-fbb8-4bdf-bc35-a1a46f43c79e/
SH256 hash:
4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658
MD5 hash:
03c82cfd1be0749980cf76733335c350
SHA1 hash:
8937059e8abbcc3bcebf43b9f0634595faada21b
Link:
https://www.unpac.me/results/ee1e9f36-fbb8-4bdf-bc35-a1a46f43c79e/
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/4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658

File information

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

Malspam

GuLoader

Executable exe 4717101ad9b433dbae626233b2d92e0ff37b921ec0fe34e97ce9469faca85658

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/301096/

Comments