MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c. 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:	a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c
SHA3-384 hash:	b73d294c13f15d6dfeff6fbd66833d5449aa21f1118d5ef5664a20ebeff68c1bd2d90d241c7cbfc3bebe8e4057055f08
SHA1 hash:	0219966f1b45dc289dade12d868b92478c18d120
MD5 hash:	cd6222a478ab6d10ad8580a791d311c2
humanhash:	red-zebra-missouri-single
File name:	SecuriteInfo.com.Variant.Ransom.Loki.19527.9895.18577
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	1'020'936 bytes
First seen:	2024-04-25 09:27:54 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:J3EGYeYIPXjpU4t4Kj5JQWlBcNwf1ISsfNUMc/YtWW6lmtlLkNJDSg0J4bakJQZN:J3EbeYIPrF5p7tISsmMeW2mfkrLMf
TLSH	T10425E1953544F5CFD81E8F7284740CA896206D3B8766E60B605B71A9CB3E3D7AB024FB
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):
dhash icon	13607332330b0bb3 (55 x AgentTesla, 16 x RedLineStealer, 13 x MassLogger)
Reporter	SecuriteInfoCom
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

421

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c.exe

Verdict:

Malicious activity

Analysis date:

2024-04-25 09:30:59 UTC

Tags:

smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/e7a70204-60a1-438b-a874-9f3a3de0a860

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

Launching a process

Creating a file

Searching for synchronization primitives

Using the Windows Management Instrumentation requests

Reading critical registry keys

Stealing user critical data

Adding an exclusion to Microsoft Defender

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

overlay packed

Link:

https://www.filescan.io/uploads/662a2224d0e2a012b4257c4a/reports/46578f32-b972-43be-863a-2399a152e989/overview

Verdict:

Malicious

Labled as:

Ransom.Loki.Generic

Link:

https://www.hybrid-analysis.com/sample/a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c

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/6320064b-98b4-4bd5-9eca-b8b0c7280dc8

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

spre.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1431514

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 URL or domain

Contains functionality to log keystrokes (.Net Source)

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

Injects a PE file into a foreign processes

Loading BitLocker PowerShell Module

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: MSBuild connects to smtp port

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-25 07:52:30 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 23 (82.61%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=u5fvg37ot4fremahuqd5zfww62223ywgouzjgztg3spngrope6oa._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240425-lfbk3shd8s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Suspicious use of SetThreadContext

Checks computer location settings

AgentTesla

Unpacked files

SH256 hash:

bb5c6a6f28c46a57755b3e26cde383cce844580b1e3e32942e04142367558539

MD5 hash:

41e1d0826beabfa8f86f0127d9698c9a

SHA1 hash:

a3c8653503e82ba623bab5b4ae9553c9584a371e

Link:

https://www.unpac.me/results/cb313eab-231e-4b33-a1bc-75b728a844db/

SH256 hash:

b3a59c4c349d68791eaafa7227d1cee632e3172a9094fb5fc91ba3d3865db44f

MD5 hash:

d233d66e8c87e205a354bfa4bcbdc57f

SHA1 hash:

7ef5ca0da03dde513ad6c043050ff80219812850

Link:

https://www.unpac.me/results/cb313eab-231e-4b33-a1bc-75b728a844db/

SH256 hash:

7e27f7c1f9ef5fc9912efbbb27ead7834012026f89ac7eef2b6e4c8db52bedf4

MD5 hash:

6884c484cb48e53b10b2a8e0de9a5fda

SHA1 hash:

771b2b56862a733141910f08219932f6d22d133a

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/cb313eab-231e-4b33-a1bc-75b728a844db/

Parent samples :

1bbf1f04b87d99930410edea26dbb275df9944459c04039126ec2dbc29bb358d
d94605dc9ae015762fc63c3ffc0adb88c67ad5173e3ea737d2e298217da8e611
a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c
855c4ef75b1244f719dfa072fa496f1d63e30e9239c99ced6e1370495cbeb2c2
db81ed5f0c011d32cf7d940b3a3843b10215e276bc102f58f4c9917098f4d4cc
3599cd13875aebeea6d2cf9ec7aca467830f6d4c43efe5a1598a01f4128a0699

SH256 hash:

a3de65d9607fa28995b6d60b0ad501d36107454865c7a74e8121ec11320ae565

MD5 hash:

7dfefede4d4b4d15fe2c4d83996e9e1a

SHA1 hash:

62e0258f0a8d23d17225ff7ad0b304ab12a9fd6a

Link:

https://www.unpac.me/results/cb313eab-231e-4b33-a1bc-75b728a844db/

SH256 hash:

a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c

MD5 hash:

cd6222a478ab6d10ad8580a791d311c2

SHA1 hash:

0219966f1b45dc289dade12d868b92478c18d120

Detections:

INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438

Link:

https://www.unpac.me/results/cb313eab-231e-4b33-a1bc-75b728a844db/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a74b536fee9f/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/a74b536fee9f0b123007a407dc96d6f6b5ade2c67532936666dc9ed345cf279c

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:	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_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_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.

No further information available

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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