MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045. 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: 17

Intelligence 17 IOCs YARA 15 File information Comments

SHA256 hash:	4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045
SHA3-384 hash:	daf8a10668c7c534d14a4d5157faae796a39a631511a5dd06c02ec4bb6a8d2dfab2c5601e038dc431a3650f8c64762d5
SHA1 hash:	1f23bfea9b5842e243d9ad9dede31533386e20ab
MD5 hash:	25578066eeebdce0aae71546e55c8af2
humanhash:	bakerloo-mobile-sweet-ack
File name:	Order quotation.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	684'032 bytes
First seen:	2024-03-21 10:37:26 UTC
Last seen:	2024-03-21 12:51:12 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:LU0KoFwwikURzlOy7PS19AQrzhS63/iezVxLFOLsHST9UIUkkN1:LzKoRikw9219JHhFbV/usyBlZI1
Threatray	460 similar samples on MalwareBazaar
TLSH	T10CE4120437F4672BE6FEAFF6456524A45B72B52A2538E61C0DD231CDA8F1B404A30FA7
TrID	69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4504/4/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):
dhash icon	0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter	cocaman
Tags:	AgentTesla exe QUOTATION

Intelligence

File Origin

# of uploads :

# of downloads :

348

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045.exe

Verdict:

Malicious activity

Analysis date:

2024-03-21 10:40:53 UTC

Tags:

agenttesla stealer

Link:

https://app.any.run/tasks/b362a691-ba07-4b70-bc27-e5d5dd43a3b8

Note:

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

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending a custom TCP request

Reading critical registry keys

Moving a file to the Program Files subdirectory

Replacing files

Stealing user critical data

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/65fc0e12f074ad892e58e7c6/reports/45208bcc-d015-4d86-b1f2-b8d7642b6387/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/39d7c098-3e09-4624-89fc-3b28cc7f91e5

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1413150

Signature

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

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 schtasks.exe or at.exe to add and modify task schedules

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-03-21 08:07:45 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=jksuxjenuiad4sgpuzbk63qgfnufzkidwi2udd5phgjsuwvqqbcq._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

7beb85da1bc8b1c935309f219347d8534a77ba114ca4217bd60f98b4ad05836e

AgentTesla

aa33486e9090a3807a894ba0c8c918668821875e0df7a15574ea412489673e3d

AgentTesla

+ 450 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240321-mpdbpsba9w/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Looks up external IP address via web service

Checks computer location settings

AgentTesla

Unpacked files

SH256 hash:

b455ce1a2fd556c199e0775421d23c390df796c8150c45a9bb7ab6e12c944e39

MD5 hash:

790cb93c970a6eaacb5352daf12f18f1

SHA1 hash:

b47b425d3d0e7f30272b7722f10ce6aaa7fcd95a

Link:

https://www.unpac.me/results/3f53aff1-940e-4732-b379-cfd74a13267b/

SH256 hash:

8a42144bfaed7278d478bb226c64cfad8abd909f2f4ce18ed17018eebbd590dd

MD5 hash:

10f2dcb1aa3ec0d37027968d347b257a

SHA1 hash:

b2d1181f17169f535a8bfa614c21aab23260155b

Link:

https://www.unpac.me/results/3f53aff1-940e-4732-b379-cfd74a13267b/

SH256 hash:

d37caf3145fd1ea5a3bb1e50ad39dc1c4a70df796aa4da6c18bc9a9c4df86eac

MD5 hash:

2168a64c5fa9e282f95ee3cdf44712d1

SHA1 hash:

610f93edc998969ddf93506a6a76e792d5cdf6bd

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/3f53aff1-940e-4732-b379-cfd74a13267b/

SH256 hash:

004dc4a6d738c14412221dd8c2fdac631f4585e155cf030dd3cc814362f937bd

MD5 hash:

efebcaf71c8f17989636db5620e70149

SHA1 hash:

381e5d15e8ba39467aa87e95ccea1ce158552f7e

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_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/3f53aff1-940e-4732-b379-cfd74a13267b/

Parent samples :

0a6c1a3b213126aacb4bdf23a40b18facef7b2fb6efd7bb49f3549d4a0c10eb1
4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045
f2e2882a446fe3f0cddd545f8a14093ba1af065b50a301c3719f921a3bff890d
a66429ccd03b43ece44da4841bbfb0239e3bd8046d19a4663cb1d5b4cb176b94
004dc4a6d738c14412221dd8c2fdac631f4585e155cf030dd3cc814362f937bd
1add0a3d216b76b0cd334a613c1d95e3af818af5b08b4afc9d4314c28a7c842f

SH256 hash:

4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045

MD5 hash:

25578066eeebdce0aae71546e55c8af2

SHA1 hash:

1f23bfea9b5842e243d9ad9dede31533386e20ab

Link:

https://www.unpac.me/results/3f53aff1-940e-4732-b379-cfd74a13267b/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4aa54ba48da2/report/overview.html

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/4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045

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:	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_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_Generic_Threat_9f4a80b2 Create hunting rule
Author:	Elastic Security

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

rar 826f0fb021e7383825a14c14946a9d1acd519a626490fca078c9c2eb883c51c0

AgentTesla

exe 4aa54ba48da2003e48cfa642af6e062b685ca903b235418faf39932a5ab08045

(this sample)

Delivery method

Other

Dropped by

SHA256 826f0fb021e7383825a14c14946a9d1acd519a626490fca078c9c2eb883c51c0

Dropped by

MD5 e061ad054f963cdac58f811160c69552

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 (HIGH_ENTROPY_VA)	high

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