MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa3422b648b4ad5e66a973700c15abc250b772f9e699565c86909f817b54396. 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 4 File information Comments

SHA256 hash:	efa3422b648b4ad5e66a973700c15abc250b772f9e699565c86909f817b54396
SHA3-384 hash:	38312cc48a3b7bf8503dc9f35aef6a50aeb89cadac425a7762cd4b0f6d07d761bdb1d49a25d16b1d597808bc7eca630c
SHA1 hash:	9a49ecdf76da0255c087c8e9ec9a44ce7216fcfb
MD5 hash:	cefcdb40cd445a79b109e34a667793fc
humanhash:	golf-asparagus-kilo-coffee
File name:	AWB Shipment Document BL,INV and Packing.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	816'128 bytes
First seen:	2020-08-12 15:21:07 UTC
Last seen:	2020-08-12 15:56:18 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	24576:Yab6j03+l03+2LL2xjGO++BWhNS2jqEmCbrqhr9:YQ403+l03+SKxjR+CWeumSmhr9
Threatray	11'291 similar samples on MalwareBazaar
TLSH	DA05D16433A49863D27A3E35CA77551407BBBC967A3DC70E5BCD32CF98203A94D107AA
Reporter	abuse_ch
Tags:	AgentTesla DHL exe Hostwinds

abuse_ch

Malspam distributing AgentTesla:

HELO: hwsrv-759636.hostwindsdns.com
Sending IP: 104.168.135.22
From: info@vaiapan.com
Subject: DHL international GmbH,AWB 3245888693- Shipment Notification
Attachment: AWB Shipment Document BL,INV and Packing.r01 (contains "AWB Shipment Document BL,INV and Packing.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/44239/

Detection(s):

SecuriteInfo.com.RSharedStrings.4220.21913.UNOFFICIAL

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

Link:

https://www.joesandbox.com/analysis/422992

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Binary contains a suspicious time stamp

Contains functionality to register a low level keyboard hook

Hides that the sample has been downloaded from the Internet (zone.identifier)

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Installs a global keyboard hook

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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM_3

Behaviour

Behavior Graph:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/efa3422b648b4ad5e66a973700c15abc250b772f9e699565c86909f817b54396/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-12 15:23:05 UTC

AV detection:

26 of 28 (92.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=56ruek3ernfnlztks43qbqk2xqsqw5zptzuzkzoinee7qf5viola._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

58805ca0fd3a90e39f91288205ca09193ce3fc83424c44f85fdbbe9c1a14bb42

AgentTesla

6587a13e1acc0297426512421aeb195fab4f3dec51c425b21dd8ee6f9972507f

AgentTesla

6c3bf021d2c48ff27cfeab73b69e09f5137945707ad8bdefbbcf97df508499f9

AgentTesla

7e668e824e528e312b547817f7e96cc3ece42e75081a9588e13b5955dcfa2950

AgentTesla

935ffdf950ff6d381426e45dab74341c48646291c05233f864db0768e056f4db

AgentTesla

b3cbf1f12ae225e86e853b5a9c100248eac70557eaffff26020cdc9d165f3ff9

AgentTesla

d0d7da6edab70ca763cd813715907daeaafb8f0245a55cf4074446bb218dfd6f

AgentTesla

d2e102ec3fdd6dce78c5144da860990bdac37221341382343e949b9d80ec016f

AgentTesla

d35fb96cdb750bf65e1480f01ecf5b772b562a69a4721bf2437a62aa920e8ced

AgentTesla

+ 11'281 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer persistence trojan spyware family:agenttesla

Link:

https://tria.ge/reports/200812-z2tnqerxds/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

AgentTesla Payload

AgentTesla

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

Threat name:

Malicious File

Score:

0.89

Link:

https://yomi.yoroi.company/submissions/efa3422b648b4ad5e66a973700c15abc250b772f9e699565c86909f817b54396

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