MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c
SHA3-384 hash: 084059ee3f8671561b92de305dae4214f0acad039350d32ce9999ce32fd70b1fee136457d19bc136461ff3dc1489500a
SHA1 hash: ac42c5bfaa98c4ff2c3af30e027fe9c25deada29
MD5 hash: 47a5bffbba715fa7e123e1f495d9d8bf
humanhash: burger-bluebird-ink-quebec
File name:PO 6500082786.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:564'224 bytes
First seen:2020-07-21 06:02:56 UTC
Last seen:2020-07-21 07:23:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:md9JGi6xG4CfCXtDtLwLZezE4B17XC0NQoAmMZUkKDnreu7PIh4QCLxpdyRw6TB:dYfCREZezv5XTNQoZMZUkKDr1LIh4t+
Threatray 10'615 similar samples on MalwareBazaar
TLSH B8C49C14E3B88AD9E3BB57BDE474004087B1B91AA7E6E3495B90F0ED1862751CB13F63
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: konicaminolta.com
Sending IP: 103.207.39.71
From: sitifatin.nasir <sitifatin.nasir@konicaminolta.com>
Subject: PO 6500082786
Attachment: PO 6500082786.zip (contains "PO 6500082786.exe")

AgentTesla SMTP exfil server:
mail.mahavirint.in:587

AgentTesla SMTP exfil email address:
pratap@mahavirint.in

Intelligence

File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29678/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WYG.13905.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392436
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 248387 Sample: PO 6500082786.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 5 other signatures 2->42 8 PO 6500082786.exe 9 2->8         started        process3 file4 26 C:\Users\user\AppData\Roaming\wPAaBXZes.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmp11B9.tmp, XML 8->28 dropped 11 PO 6500082786.exe 2 8->11         started        16 schtasks.exe 1 8->16         started        18 PO 6500082786.exe 8->18         started        process5 dnsIp6 32 mahavirint.in 216.12.210.69, 49733, 587 SOFTLAYERUS United States 11->32 34 mail.mahavirint.in 11->34 30 C:\Windows\System32\drivers\etc\hosts, ASCII 11->30 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->44 46 Tries to steal Mail credentials (via file access) 11->46 48 Tries to harvest and steal ftp login credentials 11->48 50 2 other signatures 11->50 20 reg.exe 1 11->20         started        22 conhost.exe 16->22         started        file7 signatures8 process9 process10 24 conhost.exe 20->24         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 04:09:49 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6bdtml54pvmkxs7zpwo57os7z4po2eiujrz6vaciizljxg2hfga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'605 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200721-mvq4s4yfaj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Modifies registry key
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c

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

zip 833b378d254570290dc92084ce020dfdbdaf74da4dd6542bbe109ab4601ed72d

AgentTesla

Executable exe a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c

(this sample)

  
Dropped by
MD5 71533682034f97f32a096b2f59ba95b9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29678/
  
Dropped by
SHA256 833b378d254570290dc92084ce020dfdbdaf74da4dd6542bbe109ab4601ed72d

Comments