MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ebfb7cdc30291bcc995951dda1d8f62cea3e0beb990e35fabb3078b6d9d9921. 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

SHA256 hash: 3ebfb7cdc30291bcc995951dda1d8f62cea3e0beb990e35fabb3078b6d9d9921
SHA3-384 hash: 52058969147c0cf91f68f6cd839134b3f2c3eed980879b0312a4d649cbb067b0f4a560b032680a1d4cb30bcd2a4fc2cd
SHA1 hash: 7c08e8f1f4f478df9baf5d00675bd174467621bc
MD5 hash: 419a3e9ce6606d5ed7b22a7574e1a294
humanhash: blossom-zebra-oranges-tennis
File name:Zapytanie ofertowe (SHELMO Sp. z o.o. 09272021).exe
Download: download sample
Signature GuLoader
File size:90'112 bytes
First seen:2021-09-28 10:23:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e73b8c032c82c64991ebe487a7ffcd43 (12 x GuLoader)
ssdeep 768:tKI6PD+GddmSjV7vdnt/L/qT/pYT2IO7vPPqRgAWn95fRiBLWfRrhTSgStnLYqwp:tP0+6mSjxvD/q7eT2HQgFn3OWflNULK
Threatray 5'552 similar samples on MalwareBazaar
TLSH T197936BA675C88CB5FF519EF65CBD0AB4893A6B5C64120F6BCC9C690919FB6C04CA130F
File icon (PE):PE icon
dhash icon a01cb88c8c8c8cb0 (12 x GuLoader, 1 x RemcosRAT)
Reporter Anonymous
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
1
# of downloads :
87
Origin country :
PL PL
Mail intelligence
No data
Vendor Threat Intelligence
ID:
1
File name:
Zapytanie ofertowe (SHELMO Sp. z o.o. 09272021).exe
Verdict:
No threats detected
Analysis date:
2021-09-28 10:23:45 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
AgentTesla GuLoader
Detection:
malicious
Classification:
troj.evad.spre.spyw
Score:
100 / 100
Signature
Found malware configuration
Hides threads from debuggers
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)
Sigma detected: RegAsm connects to smtp port
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1383 Sample: Zapytanie ofertowe (SHELMO ... Startdate: 28/09/2021 Architecture: WINDOWS Score: 100 23 mail.reyesyasociados.com 2->23 25 spclient.wg.spotify.com 2->25 27 4 other IPs or domains 2->27 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Sigma detected: RegAsm connects to smtp port 2->39 41 3 other signatures 2->41 8 Zapytanie ofertowe (SHELMO Sp. z o.o. 09272021).exe 1 2->8         started        signatures3 process4 signatures5 43 Writes to foreign memory regions 8->43 45 Tries to detect Any.run 8->45 47 Hides threads from debuggers 8->47 11 RegAsm.exe 9 8->11         started        15 RegAsm.exe 8->15         started        17 RegAsm.exe 8->17         started        19 RegAsm.exe 8->19         started        process6 dnsIp7 29 mail.reyesyasociados.com 109.169.39.245, 49748, 587 IOMART-ASGB United Kingdom 11->29 31 drive.google.com 142.250.185.174, 443, 49726 GOOGLEUS United States 11->31 33 googlehosted.l.googleusercontent.com 142.250.185.193, 443, 49727 GOOGLEUS United States 11->33 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 59 3 other signatures 11->59 21 conhost.exe 11->21         started        55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->57 signatures8 process9
Threat name:
Win32.Trojan.Mucc
Status:
Malicious
First seen:
2021-09-27 14:26:49 UTC
AV detection:
24 of 45 (53.33%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Unpacked files
SH256 hash:
3ebfb7cdc30291bcc995951dda1d8f62cea3e0beb990e35fabb3078b6d9d9921
MD5 hash:
419a3e9ce6606d5ed7b22a7574e1a294
SHA1 hash:
7c08e8f1f4f478df9baf5d00675bd174467621bc

File information


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

Comments