MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a47f1c728595d4a1d47c8851c9c772fdd46e1773c479b0aee89b39a8cc03302. 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: 5


Intelligence 5 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a47f1c728595d4a1d47c8851c9c772fdd46e1773c479b0aee89b39a8cc03302
SHA3-384 hash: 5137a266f93f9dcb2ce5907b56aaf3d512475dae4ac8f9b7d906b991ea103a982c1aaae96e0905b9e45853d1cb4e76bc
SHA1 hash: c1e3375f185f84f89735dc5502f9b67d010948d6
MD5 hash: e0b9b5fcc5735e4566f9ea039d40aa4b
humanhash: high-south-uniform-diet
File name:Quotation.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'477'632 bytes
First seen:2020-05-12 12:16:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:ttb20pkaCqT5TBWgNQ7aR61oVfLViy0aoutFmIBbXoru1twP6A:eVg5tQ7aRHb0ax7mIRku25
Threatray 11'101 similar samples on MalwareBazaar
TLSH 3E65E01273DEC361C3B262737A66B701AEBB782506A1F56B2FD4093DF920161521EB73
Reporter abuse_ch
Tags:exe GuLoader Yahoo


Avatar
abuse_ch
Malspam distributing GuLoader:

HELO: sonic308-17.consmr.mail.ir2.yahoo.com
Sending IP: 77.238.178.145
From: CAJA GROUP INC <amanda_johnson0101@yahoo.com>
Reply-To: CAJA GROUP INC <amanda_johnson0101@yahoo.com>
Subject: QUOTATION
Attachment: Quotation.7z (contains "Quotation.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Injector
Create hunting rule
Status:
Malicious
First seen:
2020-05-12 13:11:00 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
25 of 31 (80.65%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjd7drzilfouuhkhzccrzhdxf7ounylxhrdzwcxorgzzvdgagmba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0af91caf5bfd256133203be73629b6fc15dda3a6d11b007549babf7118763cfe
GuLoader
163ad84d7db148a5673e87d8134a699577c55518b6313a8ab81dc61fe0ca6eef
GuLoader
18bc1bb7ff629d8aa9646875c02636074f4039b39f48273ff97fe7c12f401e00
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1e52eae0d858b4fcdd21d5ffcc013da8706adda92afbb791e704556362b8f19c
GuLoader
6545a2577200349e39badbb0eb6395404a91e6e6c274cefeb83481de99d06a3d
GuLoader
806f31221f182e4a97f68f267894aa671f18f5a8a112bf70ec1f64fd078b8000
GuLoader
8ad69f7487e5a7b06d3c9b12d4fdbf6604462f90ddc2e1986dd61eaf8427e724
GuLoader
950c83d9faeb093972083f1b9fbd47b16ae5b25f1126ce2b61aad3613457ad07
GuLoader
cdad1c467cfe5f914801c1156a92b6c23baf8abf4681a098f0bb550c890d874d
GuLoader
f8fb35d8b6401fa65a471788e4f8168390c49a25ddbabe0ce475bed8dd8840ff
GuLoader
+ 11'091 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-jtn8c99752/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

e2cc6432a5ea98f5dd14a76ea7d3953f

GuLoader

Executable exe 4a47f1c728595d4a1d47c8851c9c772fdd46e1773c479b0aee89b39a8cc03302

(this sample)

  
Dropped by
MD5 e2cc6432a5ea98f5dd14a76ea7d3953f
  
Delivery method
Distributed via e-mail attachment

Comments