MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6. 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 21 File information Comments

SHA256 hash:	f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6
SHA3-384 hash:	110089c1bdd80ec3a25d10906dbfbbb82d3b49a129ad0f7f57165054536a647056b86ac507b696f97aef4351a0c2ac5c
SHA1 hash:	84ab921d6ba17f28679330b2863f90331cc2c70e
MD5 hash:	b5a3d9c1584e82409a3651f03127983c
humanhash:	helium-avocado-cold-moon
File name:	PO_#20241705.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	730'632 bytes
First seen:	2024-05-17 06:01:08 UTC
Last seen:	2024-05-17 06:21:01 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep	12288:0fdrLbDZaNRplJc6lDTD6V2pv25r2/i2bV576dIpcZ9yrCFqBqi/1aM5jtkR:mLDZMRpncGDTGVl5rmNx57m9FqBqi/1S
TLSH	T121F423C63DA0E7D9C8980B3958B0EB668372F907502AC5B61DEE81DE4D93BF05A0175F
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)
File icon (PE):
dhash icon	0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter	lowmal3
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

399

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6.exe

Verdict:

Malicious activity

Analysis date:

2024-05-17 06:03:39 UTC

Tags:

evasion smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/62206aea-13d8-462b-bd69-949014c86bcd

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.27344.13623.UNOFFICIAL

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Reading critical registry keys

Setting a keyboard event handler

Stealing user critical data

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

overlay packed

Link:

https://www.filescan.io/uploads/6646f2dfd5c40bffee6099a9/reports/ae403bc7-0b4a-4a86-9895-fc84a472d1e0/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6

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/72d70a71-923c-4d9b-91c8-9e83e7317e23

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1443121

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

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)

Contains functionality to register a low level keyboard hook

Found malware configuration

Initial sample is a PE file and has a suspicious name

Installs a global keyboard hook

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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

Queries sensitive video device information (via WMI, Win32_VideoController, 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 / registry access)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-05-17 06:02:05 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

17 of 23 (73.91%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6pmpdiulyj2bti7zdqv3o4xjjzjcdzmy2hqkzoqj5akdkt5en3la._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240517-grflyscg92/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Unpacked files

SH256 hash:

f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a

MD5 hash:

d172f59251b97b415b621d302e1be2b7

SHA1 hash:

b1534e603749c901b5ac185f20e281f6be7fa908

Link:

https://www.unpac.me/results/9b610147-ca10-438e-9b50-bf2d95f109c4/

SH256 hash:

42147407e6200587e15c0bd740b8fca3b77bdb2addc6f7794756d5035bfc2b94

MD5 hash:

acd365b0fd3142e87d2050bd5b58278f

SHA1 hash:

adc319d957e44ec2c32229fc0afec7afdde7a924

Link:

https://www.unpac.me/results/9b610147-ca10-438e-9b50-bf2d95f109c4/

SH256 hash:

e65411551a4cb79fa51a0b50e77863a6e93ed13a5a3aa6f1e55fe1974d7352e4

MD5 hash:

a46bce0b4f08400434453474a2b2a1c2

SHA1 hash:

a59018fc07488c2c3d0e9f6ff2172486f664bdea

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/9b610147-ca10-438e-9b50-bf2d95f109c4/

Parent samples :
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SH256 hash:

27ddc96465ac70b602e730ca4b28018a2875f5aca4215f3d8608b9defc8bf23d

MD5 hash:

1b2614489be216f14010dea5dee50dc5

SHA1 hash:

046c2462662dc3adea1c79121b4d865665850e23

Link:

https://www.unpac.me/results/9b610147-ca10-438e-9b50-bf2d95f109c4/

SH256 hash:

f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6

MD5 hash:

b5a3d9c1584e82409a3651f03127983c

SHA1 hash:

84ab921d6ba17f28679330b2863f90331cc2c70e

Detections:

INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438

Link:

https://www.unpac.me/results/9b610147-ca10-438e-9b50-bf2d95f109c4/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f3d8f1a28bc2/report/overview.html

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

Threat name:

Suspicious File

Score:

0.63

Link:

https://yomi.yoroi.company/submissions/f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6

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:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

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_KB_CERT_7c1118cbbadc95da3752c46e47a27438 Create hunting rule
Author:	ditekSHen
Description:	Detects executables signed with stolen, revoked or invalid certificates

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_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_imphash Create hunting rule

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

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 f3d8f1a28bc27419a3f91c2bb772e94e5221e598d1e0acba09e814354fa46ed6

(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 (HIGH_ENTROPY_VA)	high

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