MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34. 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: 18

Intelligence 18 IOCs YARA 17 File information Comments

SHA256 hash:	12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34
SHA3-384 hash:	85ce4b941f25f83b721813ac90357980b7f1665df3babf36f192a597d368de819708f70fd4a1faf3ace19f12017c3ed5
SHA1 hash:	3fce2ab4b6244c1cf66aaaaef1927a6b474bc355
MD5 hash:	10ec143257b9b723ee3718db0c749836
humanhash:	three-carolina-four-arizona
File name:	dekont.pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	2'484'736 bytes
First seen:	2024-04-17 13:13:38 UTC
Last seen:	2024-04-17 13:43:42 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	49152:Q9OOQwfC4BQ1ePfQ7xOMM+OZm3TTqy+c+xyb6jZcJLJHs/ovJVw:GQaCgQ1eXrfZKTTuc+x06ORW/ovJ
Threatray	4'012 similar samples on MalwareBazaar
TLSH	T1B9B52309B7EADB47D96DA374E09A0500C7F8B2E57A1DEB4E5E40E0F77807760991A20B
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter	lowmal3
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

361

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34.exe

Verdict:

Malicious activity

Analysis date:

2024-04-17 13:17:25 UTC

Tags:

evasion stealer agenttesla

Link:

https://app.any.run/tasks/c1653819-9062-4c1a-a59a-52ac6e5fe234

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Malware

Maliciousness:

Behaviour

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a process with a hidden window

Creating a file

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Reading critical registry keys

Sending a custom TCP request

Creating a window

Stealing user critical data

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/661fcb1b75339da04f94b4e9/reports/8acb4ee1-84ac-47ed-872a-a39bb39a759a/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/bdc99ff2-91a1-44c1-9ad0-1f651453e5aa

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1427373

Signature

.NET source code contains potential unpacker

Check if machine is in data center or colocation facility

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

Contains functionality to log keystrokes (.Net Source)

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Suspicious Double Extension File Execution

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 Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Uses an obfuscated file name to hide its real file extension (double extension)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Costura Assembly Loader

Yara detected Generic Downloader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34/

Threat name:

Win32.Trojan.CrypterX

Status:

Malicious

First seen:

2024-04-17 13:14:06 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

6 of 38 (15.79%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=clkkdslyopxjjontoftg326aplvb7vlnrl62nubd2jbgxrkpny2a._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

2f7ca180c50ce99d164b5601826e648f88d6db9b932b052dfea9d59a7e2b78ed

AgentTesla

48e27e05da2697751c4de6a8d5d32f9de30c5be86fd5c2263624f6be1e25ac87

AgentTesla

e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40

AgentTesla

+ 4'002 additional samples on MalwareBazaar

Result

Malware family:

zgrat

Score:

10/10

Tags:

family:agenttesla family:zgrat keylogger rat spyware stealer trojan

Link:

https://tria.ge/reports/240417-qgmrysad7z/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Detect ZGRat V1

ZGRat

Unpacked files

SH256 hash:

e0909a0725b8009a790e4a06a94fcbd138ce8e10e4f2f106941f8b8c40c9e853

MD5 hash:

9fb4ad80ad1ae11fc1cd07e19a513203

SHA1 hash:

e3d65cf9ba29ff5d0932b219e80983aff063c4b8

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

SH256 hash:

642571e9d17409308e54440e979b5b766d84f919585d5c3a17da7a34293ea1c5

MD5 hash:

6900616c940ad685d22d55218eb76f63

SHA1 hash:

92a2099c01830483c7f1f8788953e3142a4e2915

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

SH256 hash:

bb0dd008cb087f0823ffc3677ed4cab4de4e02140d9035f6430377dc8ece6393

MD5 hash:

2067c13fdfaea453dfceee96e601be66

SHA1 hash:

75af23a941a6c024dc0385852070400eb347394a

Detections:

AgentTesla

win_agent_tesla_g2

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Agenttesla_type2

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

Parent samples :

e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
0764ec132ebf90d1c59dfe6bc19d492b1e0034f3021f466c63231be4413bc1e6
2f7ca180c50ce99d164b5601826e648f88d6db9b932b052dfea9d59a7e2b78ed
48e27e05da2697751c4de6a8d5d32f9de30c5be86fd5c2263624f6be1e25ac87
12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34
f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4

SH256 hash:

d5edf8ec661c8601ef3283511eaff0c6b1f55f810c3ed8a3d307746273a81c72

MD5 hash:

3ad49a1ba7dc9b3d9599e7b95e0b2d95

SHA1 hash:

4af63b3bf8936bfc16192a71337fd954611e1b01

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

SH256 hash:

78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677

MD5 hash:

f9d2985aa1c41cca281321fffb5ed424

SHA1 hash:

3a7a58d2dcae2762882357ae34d372744b1dbb9d

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

SH256 hash:

12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34

MD5 hash:

10ec143257b9b723ee3718db0c749836

SHA1 hash:

3fce2ab4b6244c1cf66aaaaef1927a6b474bc355

Link:

https://www.unpac.me/results/83dd63d8-489d-433d-b554-c54e34e71fef/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/12d4a1c97873/report/overview.html

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

Threat name:

AgentTesla

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34

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:	AgentTeslaV3 Create hunting rule
Author:	ditekshen
Description:	AgentTeslaV3 infostealer payload

Rule name:	AgentTeslaV5 Create hunting rule
Author:	ClaudioWayne
Description:	AgentTeslaV5 infostealer payload

Rule name:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

exe 12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34

(this sample)

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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