MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 891a9376f1d8e1a80995a4139e8b06e1cd2c9f8ae41e10203863be9944e743ac. 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: 9

Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash:	891a9376f1d8e1a80995a4139e8b06e1cd2c9f8ae41e10203863be9944e743ac
SHA3-384 hash:	8f05aa04b7836ec9dc0ad59347b9c5b4cd22f61b72fa6a99d31015c672d422ab2c7560fb67f69f89574e57deb7916e3b
SHA1 hash:	2d0baff26793be42f93efcfb4d83275225db6aea
MD5 hash:	68660e9a96ee227889f3fabdf0f08cf1
humanhash:	black-tango-emma-december
File name:	RFQ 073120.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	501'248 bytes
First seen:	2020-07-31 06:09:03 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:rHmFuQshfEudVcJFn8Vt++VHBFST3m6jAkbSAi:rHmFuQsqyG6GIhFSS6sLAi
Threatray	10'733 similar samples on MalwareBazaar
TLSH	A6B4D04CB0EA251AF05575BF5FF8C69BCEA6F12F5292422B12B425C7817874C6E81F32
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

From: Tim Lu <admin@shanghaicentury.com.sg>
Reply-To: Tim Lu <linda-dobrinskibrothers@mail.com>
Subject: New RFQ QDS9483_CTS
Attachment: RFQ 073120.r00 (contains "RFQ 073120.exe")

AgentTesla SMTP exfil server:
smtp.autoshorp.com:587

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/35810/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a custom TCP request

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

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/404537

Signature

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

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: Scheduled temp file as task from temp location

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)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/891a9376f1d8e1a80995a4139e8b06e1cd2c9f8ae41e10203863be9944e743ac/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-07-31 04:41:47 UTC

AV detection:

26 of 28 (92.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=renjg5xr3dq2qcmvuqjz5cyg4hgszh4k4qpbaibymo7jsrhhiowa._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

16f661258c7572ebd08fa986cfe3e2f1b24196d366d048102900e60979f42ca4

AgentTesla

1c94475216a36fd670d2d6512f4a4347f809847a0491b768f81fa33fa00ccc83

AgentTesla

2ee560a991356dbcf4f398a7db1e8258c0fac8fbc0f938ad03f6a6d00810aacb

AgentTesla

3ec3af4549c4eb614c0adbe80eea39646e7b0de97e6ff1fa52c43e0fb2249560

AgentTesla

74b7a02e49c6319963fefe23a1736cf16bfd63ebb672a541d97c95601f840a49

AgentTesla

891aad4c074da1158dbb19b406248a8c70b22f589f57225a8e12261c4298c925

AgentTesla

a3655b55fca072854a2913e545999b86b33d24e49da56e5ecd8c37bd99f4afed

AgentTesla

ad7c0984d39778f02a960c2d6a593c68af0e4f236432cc5a071e9c43ef682ff8

AgentTesla

c2a1a51f1cbad62d824bab3c43410885fdbbfef0cc2eb82b7c2522aed149d17c

AgentTesla

+ 10'723 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200731-k3b1yz26c2/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of SetThreadContext

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Reads user/profile data of local email clients

AgentTesla Payload

AgentTesla

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/891a9376f1d8e1a80995a4139e8b06e1cd2c9f8ae41e10203863be9944e743ac

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