MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac88ad4f977c60a4e265cb5390c408c8979da9d1bb3c9b5c0a3698f359366bbe. 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: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	ac88ad4f977c60a4e265cb5390c408c8979da9d1bb3c9b5c0a3698f359366bbe
SHA3-384 hash:	b92e33332f99e05c88c426d47588e6fb35c038fbaf403110fa1f2eda17fe1700e382e59a742d207f3a9fabeeed6a88a5
SHA1 hash:	4f60405be2880386cd494f424f26e2ccb3f6d723
MD5 hash:	cd8dd42144f6fca91c4bbc43ea14e64f
humanhash:	utah-minnesota-delta-victor
File name:	INV839.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	460'800 bytes
First seen:	2020-08-14 17:55:35 UTC
Last seen:	2020-08-17 21:25:37 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:s4EcmZHAFaxmVmie9bngPhONDL3txHWv62IfyOzoVjdAVJBhnQWwm:s4EcmZHAFaxmVmie9bngPhON/d4hdO0e
Threatray	21 similar samples on MalwareBazaar
TLSH	EFA4F19D30E4A237E7E89BF6D870AC085776B3020526DE4B4F90A2F547E2BD0BA1545F
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

From: sajid@emiratesstars.ae
Subject: RE:RE: INV839 Past due
Attachment: INV839.zip (contains "INV839.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/46084/

Detection(s):

SecuriteInfo.com.ArtemisCD8DD42144F6.21961.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Using the Windows Management Instrumentation requests

Reading critical registry keys

Stealing user critical data

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/430568

Signature

Binary contains a suspicious time stamp

Found malware configuration

Injects a PE file into a foreign processes

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, 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 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)

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/ac88ad4f977c60a4e265cb5390c408c8979da9d1bb3c9b5c0a3698f359366bbe/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2020-08-14 17:53:51 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 29 (86.21%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=vsek2t4xprqkjytfznjzbraizclz3korxm6jwxakg2mpgwjwno7a._file

Verdict:

unknown

AgentTesla

117cca28917405c65fd9e824b381006f453618e5d8c2e080482c1df59a6b8848

AgentTesla

2f9d83d844287396dcaf52b5c15c1dacc92bc4ae2e2777d24c8d09465037ace3

AgentTesla

5042521b58a756c07c9b4d6546b2d6a33c16c49ec60e65d190f17fdb7db006f8

AgentTesla

6011714f77a9cfdf682b04df3490a0ca227d9a64074946304b8ccd0c83e6264e

AgentTesla

738555842fd28072fedac20f99de12a1f64724d834bfcc3be9c857ca81708660

AgentTesla

af2c5c77ba52532806daae8bffadb2c5a4073009e0f485302d2c816ff315a8a7

AgentTesla

ca2ac9192f0d9fe769d59b389543d410921d56b2231a639fd99ae5ffc9c275ef

AgentTesla

da7f542b91835ba3090350c2936641058c361e332eda9222f0674dfcbefd4ce9

AgentTesla

e1cc292b3eb8e646e0c778966a3150d2f278e1394059cf31106301bb003d273f

AgentTesla

+ 11 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200814-gjlw8yxr12/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

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.

Threat name:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/ac88ad4f977c60a4e265cb5390c408c8979da9d1bb3c9b5c0a3698f359366bbe

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