MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144. 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 6 File information Comments

SHA256 hash:	1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144
SHA3-384 hash:	a59edf5ecbc6d720f7d081184d001f206ac1d1ca3e93eb216866790013b6ebda7180a69ab967f03293533b1447ecc4ad
SHA1 hash:	dbc6f569dbe354205439ae494608979a1a433d56
MD5 hash:	036fff1f570f31cf933db72e33e66091
humanhash:	nebraska-jig-vegan-fanta
File name:	TT Swift Copy.pdf (4).exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	900'096 bytes
First seen:	2020-10-10 07:10:09 UTC
Last seen:	2020-10-10 08:04:37 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	12288:04YmmBkENUnzZEFosNiDhEmml4THwMxuv0//XB542Zs6BT3eAzaoHgqC8peIYeA0:lGriDrml4Lw0uvOXb9zf9FpeVb1q
Threatray	919 similar samples on MalwareBazaar
TLSH	0815BEC5F54462ADCC0ADB319A36CC3496223DBDAA39851E14DF3D2B3FBF2939521462
Reporter	abuse_ch
Tags:	AgentTesla exe

abuse_ch

Malspam distributing AgentTesla:

HELO: mail.fpcci.org.pk
Sending IP: 124.29.202.181
From: sales <sales@matrixas.in>
Subject: RE: WIRE PAYMENT CONFIRMATION
Attachment: TT Swift Copy.pdf 4.rar (contains "TT Swift Copy.pdf (4).exe")

AgentTesla SMTP exfil server:
mail.blc.com.np:587

Intelligence

File Origin

# of uploads :

# of downloads :

163

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AgentTeslaV2

Link:

https://www.capesandbox.com/analysis/69719/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

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/487451

Signature

.NET source code contains potential unpacker

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

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

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

PE file contains section with special chars

PE file has nameless sections

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:

Download SVG

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-10-10 01:06:01 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dw6bylvedj44gbdlt4dzmjelusg3eb6jh634cuq6qf3dm4jjqfca._file

Verdict:

unknown

AgentTesla

03fc6fb46457641645117a9c29292069714568ff711647455c70769d7ab3485a

AgentTesla

065e8a67f2f183b639efbce3d4014c2d21e658f0e7fb92ae57a6cef9acd12626

AgentTesla

0ed8342c19d8ff14d83588ca91cc6b5ab6bd811de15f05e5497d62ba25e56365

AgentTesla

206ffd0bd61efa5d7555466690e7e20ee7bcf6f8e45323bb1bb01b85073bc77b

AgentTesla

2634fb80e3aae92bb4b0fa252d7be8242629a9dbcd14301b0002e8d1bfc8b420

AgentTesla

3c12197e1c9c3d04c5831d3633fcda64dd51bd7c7d31db7ca42fafe341f7a3ee

AgentTesla

ac6059835dff236452027450749d077775411e277447a711e5f53bea47262821

AgentTesla

d0a30f40bc29f4282f79ceb0f3391ee6b77d3837fdc1bd3208c4ad2ed392940c

AgentTesla

dfa5e1f893c313deda7e7ea47512b756a21bba962e07cb21248b9abbdaadf3a4

AgentTesla

+ 909 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

keylogger stealer trojan spyware family:agenttesla persistence

Link:

https://tria.ge/reports/201010-elj8dc4n6x/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla Payload

AgentTesla

Unpacked files

SH256 hash:

1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144

MD5 hash:

036fff1f570f31cf933db72e33e66091

SHA1 hash:

dbc6f569dbe354205439ae494608979a1a433d56

Link:

https://www.unpac.me/results/fa0b4cb6-d3e2-42c3-9f84-9d5340a08ecc/

SH256 hash:

f8f5f5b776240e9d34a89635897214236eaf73b818c097c90529c411b13b3c7c

MD5 hash:

1e7425ca0f21b72c0e8e221f47751a94

SHA1 hash:

5d489ce8ab959a236e9b3ab774c82b00394ce63f

Link:

https://www.unpac.me/results/fa0b4cb6-d3e2-42c3-9f84-9d5340a08ecc/

SH256 hash:

607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b

MD5 hash:

a90baadadf904455325f7bc787185c7b

SHA1 hash:

7d833bb819d638008c98be469b05db2feaf201cd

Link:

https://www.unpac.me/results/fa0b4cb6-d3e2-42c3-9f84-9d5340a08ecc/

SH256 hash:

ed59b3fc26de2b31e908f025c23d01eb8ed9834b2bdd740745e1dc0737e443b9

MD5 hash:

d67f7450a64932b410ed9cb2e02b52cc

SHA1 hash:

a4d7f12bd7f03b55b5c05ee1794e566b8521baaa

Detections:

win_agent_tesla_w1

Link:

https://www.unpac.me/results/fa0b4cb6-d3e2-42c3-9f84-9d5340a08ecc/

Parent samples :

765622475f6dbfe564a2c84b050b1993aa0168fb2ca34d67e4c7fb641b302678
1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144
6d73b61228e78c8e44db200696182dd1287981e0b433ad534fec23ae19eff146
532051adf5893bf586b56210af5c7f3c4e8f72cfecf8ef52687f34e1fea17ab3
da505ce244393d643b3e6aec90db41401a9685c56bec2e5eb0c5117b33e66eb1
57b7d138364e73bd3a7569d66edde728f9827be45f04d78b3213f7027083d985

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

Threat name:

Malicious File

Score:

0.75

Link:

https://yomi.yoroi.company/submissions/1dbc1c2ea41a79c3046b9f0796248ba48db207c93fb7c1521e81763671298144

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_extracted_bin Create hunting rule
Author:	James_inthe_box
Description:	AgentTesla extracted

Rule name:	AgentTesla_mod_tough_bin Create hunting rule
Author:	James_inthe_box
Reference:	https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/

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