MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8ef5faf8bef2942260f56a7bfca916280711c776ee19bf00954ebdee11804ea. 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 2 File information Comments

SHA256 hash: c8ef5faf8bef2942260f56a7bfca916280711c776ee19bf00954ebdee11804ea
SHA3-384 hash: 0568de1e47d3974c0872acfc42acf885906a2c9b7a6f23de0757b5996fc1d9d5947cacc3a5a107cc9074ffadcd85ccf3
SHA1 hash: 5294bbe0181f7d21d8a2e2f6b9fad41355b32272
MD5 hash: 88ebb66bb61d1c8c48d432142cccf153
humanhash: table-hot-low-magazine
File name:Inquiry No 3308.exe
Download: download sample
Signature AgentTesla
File size:980'992 bytes
First seen:2020-10-06 05:38:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:GhvPbvsx8loPYXp9PewH5QJGD5Mh6VJwp5a+mu9unaaOxJEIFdfJKGJADQb9o7vt:8vsx8f9PV8YdVJBBODEIFdMMbk
Threatray 324 similar samples on MalwareBazaar
TLSH B125D011968C0267F132D038A236D47867B69D815A08D2D52ED6ECBFFECFE98B5D024D
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.namayeshgah.com
Sending IP: 185.44.36.11
From: payataw control <info@payatawcontrol.com>
Reply-To: info@payatawcontrol.com
Subject: Order Enquiry No: 3308
Attachment: Inquiry No 3308.rar (contains "Inquiry No 3308.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
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 steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Status:
Malicious
First seen:
2020-10-06 00:59:05 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
c8ef5faf8bef2942260f56a7bfca916280711c776ee19bf00954ebdee11804ea
MD5 hash:
88ebb66bb61d1c8c48d432142cccf153
SHA1 hash:
5294bbe0181f7d21d8a2e2f6b9fad41355b32272
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
SH256 hash:
d9d1116bc6d9d8409bd9feed6b5be7bfedd6ab7407aa8076dc4a4da322ec3028
MD5 hash:
736330d054f16d464e4de57c5e1afc7a
SHA1 hash:
73cc1a3bcf30d95c183cf3b588f56e1c937c2a7e
SH256 hash:
dac42245c9750d4c33acaff9df2dcd2eeab6286b71870c3904a8340d2eae6b62
MD5 hash:
a37898b88041c6752c520c72893cc81f
SHA1 hash:
90ed8cc9ad6416384e162e165cd1b54216bb932a
SH256 hash:
f81a676213d3be20a7d4e7de1887a9d3583996193748dd09b5d7447b57a0151a
MD5 hash:
1c01d2973a21a6fd4dde862290d30a98
SHA1 hash:
c1c7e3d06a11d358ed0473a3472b2d4fcc831ab5
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe c8ef5faf8bef2942260f56a7bfca916280711c776ee19bf00954ebdee11804ea

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments