MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9. 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 19 File information Comments

SHA256 hash:	b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9
SHA3-384 hash:	b868fd829cbf7b3e86a1a1921d575dc238a69a60d53436f2ccc81456078e8effa781ecd0d8d856e5227658aeb50e1ddc
SHA1 hash:	8ea85a39e4e456e79db46abfe00f9be73c8e254e
MD5 hash:	a94578e1a694ba09dc9ed5dc7df60fcc
humanhash:	oranges-romeo-glucose-charlie
File name:	Total Invoice.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	972'288 bytes
First seen:	2024-04-24 20:15:36 UTC
Last seen:	2024-04-29 09:26:25 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:8+17qWKvIj9RR5BGNn5BZj6ZNaJ312Zw471:t5AvIj9VB+j6naJl2iK1
Threatray	933 similar samples on MalwareBazaar
TLSH	T10C25DF7E26744A52C06C0BB59C121C3023EF5D016972C5F488B271E709E6FBB59E7EE6
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	d4c082808080d0e0 (2 x AgentTesla)
Reporter	threatcat_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

420

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9.exe

Verdict:

Malicious activity

Analysis date:

2024-04-24 20:17:53 UTC

Tags:

stealer agenttesla exfiltration

Link:

https://app.any.run/tasks/564f8118-37bf-4008-897c-0c87be84a245

Note:

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

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

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/6629688275339da04f9ea1c9/reports/fec451dc-05e1-4a0e-9bef-90f8d28653a8/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

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/af61e494-2ec5-4314-bbf6-e249ad98d5bb

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1431339

Signature

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

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

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

Loading BitLocker PowerShell Module

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

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

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 PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-24 08:56:46 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wbxpogucbkbj7qaquo6dhnwggaucxfgyghrf7fzlofz7a6b3o3eq._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

AgentTesla

b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

AgentTesla

c96565623c3e405a370614f452383a763f5a48baf25e79f91a6311c9a0a8fd3a

AgentTesla

+ 923 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240424-y14tksgg6w/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Checks computer location settings

AgentTesla

Unpacked files

SH256 hash:

277cceeee21e92de00a9aef7fa0f6ca75b1b642a4af932d8031c851a5737a25d

MD5 hash:

42f9532ed1ee320ae19ac1ab5db3e587

SHA1 hash:

a184cb112772cdb6b3160f429a4494c844d998b2

Link:

https://www.unpac.me/results/6acd87d9-fe67-4101-a20e-efa52902b11e/

SH256 hash:

abdf032878b2df29c596f3b475dc6cc53e8498a49465222af5e41597f8ebab3e

MD5 hash:

7f060658be78de02c6359c6ad55c0913

SHA1 hash:

8a549c8e633b7d2dbf487970892edbc0c76600d8

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/6acd87d9-fe67-4101-a20e-efa52902b11e/

Parent samples :
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SH256 hash:

bbd45f8932a2378325e0c50aaf3a5045e53ddb2057a4de1c16c9593de153c69c

MD5 hash:

9debcadc3fbc8848ee46316181689794

SHA1 hash:

743898b4bbe78be0794a45cfae43535ffbbd4f3f

Link:

https://www.unpac.me/results/6acd87d9-fe67-4101-a20e-efa52902b11e/

SH256 hash:

a3de65d9607fa28995b6d60b0ad501d36107454865c7a74e8121ec11320ae565

MD5 hash:

7dfefede4d4b4d15fe2c4d83996e9e1a

SHA1 hash:

62e0258f0a8d23d17225ff7ad0b304ab12a9fd6a

Link:

https://www.unpac.me/results/6acd87d9-fe67-4101-a20e-efa52902b11e/

SH256 hash:

b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

MD5 hash:

a94578e1a694ba09dc9ed5dc7df60fcc

SHA1 hash:

8ea85a39e4e456e79db46abfe00f9be73c8e254e

Link:

https://www.unpac.me/results/6acd87d9-fe67-4101-a20e-efa52902b11e/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b06ef71a820a/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/b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

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_DIFF_Common_Strings_01 Create hunting rule
Author:	schmidtsz
Description:	Identify partial Agent Tesla strings

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:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

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

exe b06ef71a820a829fc010a3bc33b6c630282b94d831e25f972b7173f0783b76c9

(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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