MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f765fffe688f5d61d9dfcca89d0ec5c1b91236b00ee7240d6754f422894901d5. 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

SHA256 hash:	f765fffe688f5d61d9dfcca89d0ec5c1b91236b00ee7240d6754f422894901d5
SHA3-384 hash:	c1008e7a147fa22b12117cdb50ea4417cca6047cf355803002bf42f28007f2485ff3beb04f1eb3b503d8bcc2d2e26813
SHA1 hash:	c10a4c9afeac5bdf59dd4c544728f2a75eb5f0ae
MD5 hash:	3b8d02a39056a44ceab3f08433f356f2
humanhash:	fix-william-victor-washington
File name:	IMG-08302020UGB.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	854'016 bytes
First seen:	2020-08-31 05:54:52 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:qcv9IadpTduX+5hTrxKpYALNkmNEVWEe0tFhS5K0OLYaqpFMUXTqza6MPiL:Oa7TdrtK55DFUmaqpFMUjqW6MK
Threatray	9'504 similar samples on MalwareBazaar
TLSH	0E05D029030D9B2FCD5872BD2490909CE1F19B41EA34F2C8ED5B31E565C639DB7AE2C6
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: mew-oman.com
Sending IP: 77.240.156.234
From: Middle East Wealth's LLC<purchase1@mew-oman.com>
Reply-To: infofest101@gmail.com
Subject: Re: CONTRACT & PO IMG-08302020UGB
Attachment: IMG-08302020UGB.zip (contains "IMG-08302020UGB.exe")

AgentTesla SMTP exfil server:
mail.estechtab.com:587

AgentTesla SMTP exfil email address:
asika1@estechtab.com

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/53259/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a process with a hidden window

Moving of the original file

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/454882

Signature

Injects a PE file into a foreign processes

Installs a global keyboard hook

Machine Learning detection for dropped file

Machine Learning detection for sample

Moves itself to temp directory

Multi AV Scanner detection for dropped file

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)

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 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/f765fffe688f5d61d9dfcca89d0ec5c1b91236b00ee7240d6754f422894901d5/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-31 00:25:09 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=65s777tir5owdwo7zsuj2dwfyg4renvqb3tsidlhkt2cfckjahkq._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

275559f7e9052564ecacedb07b93ea0e552fe3cf4d5b3bbf315e1494efd712e2

AgentTesla

527bf96dc4d090f961c250f7c6411f477acfafcea3a80e83f4f567a0d497f632

AgentTesla

640e087a78aa77a9bb49027500f1f29f9d31f5b64c13c99b690ea813d0737fd4

AgentTesla

677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb

AgentTesla

b6cc6aed76d1b7e069209d41f75b0275cd99154d75672214c039d8bc0e2eae98

AgentTesla

b881e52663ba0b4af029f185d0ff8b16c7e77f253df90a489e46b67e44c3c20f

AgentTesla

dd5712ad571847f064a5dfcd49ee82e3d2b42959bef23a773512dc41af030f6e

AgentTesla

e847719a98762bcf7422064186c2cdbb2f58000622448c3adcb6769b7cfbea68

AgentTesla

f02fa74cf67fbbbff605bf316388b5c6d208efd33ccede87538938389be4de93

AgentTesla

+ 9'494 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer spyware trojan family:agenttesla

Link:

https://tria.ge/reports/200831-n8b831amn2/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

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:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/f765fffe688f5d61d9dfcca89d0ec5c1b91236b00ee7240d6754f422894901d5

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