MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28bd99a29c58149c6c11e034cbd34ce18c42ffbe66cb00e9e8e67ca3fa04ec05. 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


AgentTesla


Vendor detections: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28bd99a29c58149c6c11e034cbd34ce18c42ffbe66cb00e9e8e67ca3fa04ec05
SHA3-384 hash: 7583d5bb8ca100da5ebf77c352333f50f0a43e9d478fc00db4fb01cc6e154b3911197a1eecc968082771c5630695e196
SHA1 hash: edf7a988932195cedede2dfc9453cc66f80eeb9e
MD5 hash: 23798a2edeaecc48c23cc335f1aa6b25
humanhash: twelve-burger-snake-single
File name:adjunto_de_oferta_urgente.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:539'136 bytes
First seen:2020-07-07 09:01:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:uIXFSwN4Q3OLK2lpbd84QiCzjJLEoP+7Zld/lWbJxaiq1OU+BHtCOVbVdiDWhhwg:BU+xBLdjwwaqAcgjSEIr
Threatray 10'769 similar samples on MalwareBazaar
TLSH 2DB4BE7232B9AF86C93A4FF5A51425400FB4296B727DD36A6DC030CB15AAF404E95FB3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: master.dtnetwork.hu
Sending IP: 195.70.37.203
From: Sebastián <officeSebastian@posot.es>
Subject: Fw: oferta urgente
Attachment: adjunto_de_oferta_urgente.7z (contains "adjunto_de_oferta_urgente.exe")

AgentTesla FTP exfil server:
ftp.rologisped.com:21

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/22103/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28bd99a29c58149c6c11e034cbd34ce18c42ffbe66cb00e9e8e67ca3fa04ec05/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 09:02:11 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fc6ztiu4lakjy3ar4a2mxu2m4ggef756m3fqb2pi4z6kh6qe5qcq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'759 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
spyware
Link:
https://tria.ge/reports/200707-5vgz4q551s/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
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_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.

Malspam

AgentTesla

7z d490c86c10df82c40d531cd9beb6721910e114e4d34d38a51dbfa5663655be6a

AgentTesla

Executable exe 28bd99a29c58149c6c11e034cbd34ce18c42ffbe66cb00e9e8e67ca3fa04ec05

(this sample)

  
Dropped by
MD5 17e1e2f49831208d4288fdf9ee8edd97
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22103/
  
Dropped by
SHA256 d490c86c10df82c40d531cd9beb6721910e114e4d34d38a51dbfa5663655be6a

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