MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f. 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: 19

Intelligence 19 IOCs YARA 17 File information Comments

SHA256 hash:	cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f
SHA3-384 hash:	28ac7962ab6fa7464a3ddd614e9a985a0635cdab765e94ca6d30533b353719d4c7ccc8a8532423b9ae909a7d23543bd9
SHA1 hash:	3401e4c0953ad4465f617c62b9d248745783b427
MD5 hash:	868ee45a89360fac19810c9dcfb6e9aa
humanhash:	skylark-vegan-kentucky-fish
File name:	Attached Quotation.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	688'640 bytes
First seen:	2024-06-21 07:15:43 UTC
Last seen:	2024-06-21 08:23:38 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:38mS4Ev/5y2UOYGsslwVgez8wKgQLPHA+IgzJmwf81akIdWtdvIryri1w:381v/5sXGdqYBgQGIwwf8LIdWtSyrYw
Threatray	1'788 similar samples on MalwareBazaar
TLSH	T1E4E40289A9EF7F0EC0BE13B856360450877AB63A6235D35E4FC214DA1D727C18A90F97
TrID	63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
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:

cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f.exe

Verdict:

Malicious activity

Analysis date:

2024-06-21 07:16:58 UTC

Tags:

smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/4333fc6f-787e-4cef-ba1a-273545d6cf8d

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.4161.14795.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=667528b450b6d35655cbd73bwin7simulatehigh_evasion

Tags:

Banker Encryption Execution Generic Network Heur Dexter

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a process with a hidden window

Creating a file in the %temp% directory

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Reading critical registry keys

DNS request

Connection attempt

Sending a custom TCP request

Stealing user critical data

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated packed

Link:

https://www.filescan.io/uploads/667528b86b8dba248b439114/reports/89d6d3ac-401a-4b66-8ebc-d50095a8b454/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

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/c06b4e44-a9df-47e5-a529-ef6219520c5b

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

spre.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1460590

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Adds a directory exclusion to Windows Defender

AI detected suspicious sample

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

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: MSBuild connects to smtp port

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 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

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f/

Threat name:

Win32.Trojan.Generic

Status:

Malicious

First seen:

2024-06-21 01:02:48 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

12 of 24 (50.00%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=z5zjchsu6xejcmlrb5ydf23lm4fe7cmynv2vm2wh6teg3miudjxq._file

Verdict:

malicious

AgentTesla

b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd

AgentTesla

b9ed438f763584171822b73a28273427a0923cca26b8e40b008e3aefbcf48d79

AgentTesla

cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

AgentTesla

e0e9e48f20637598e39c11113db0e83a6a31efd3b94b2d400b110547687f2bf3

AgentTesla

+ 1'778 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla execution keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240621-h3sw4a1ajc/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Checks computer location settings

Command and Scripting Interpreter: PowerShell

AgentTesla

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/d6953b95-4c90-4000-a997-1705042d146c

Unpacked files

SH256 hash:

b829d4c9acf4e2d7c4c0337519ca529aa0c0af248a8fb51348f7ab30c6a72daf

MD5 hash:

eb7dc7dfef3653cb8e2290421d366594

SHA1 hash:

44fd7ce185a0671d61d8a45f69dc0d35a5739062

Link:

https://www.unpac.me/results/7c016163-fc71-4868-a344-e4445a467bab/

SH256 hash:

19ad5af05508fb20d35f954254fccf231753e2e6307bc4b785bbb94460d36759

MD5 hash:

41c9c2e6f2f2a965fcb690005b625c9f

SHA1 hash:

44e98ce84278ea0e940505c8566d4838db0ffca9

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/7c016163-fc71-4868-a344-e4445a467bab/

Parent samples :
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SH256 hash:

ecf1257cb2839319c722daf5323ba2ed7060368b46f84610b6b6823323297826

MD5 hash:

cba51dcdec84ac14ce1eaf2ede86f28b

SHA1 hash:

2e77e64525600817d96b4d9c497135c989e608ee

Link:

https://www.unpac.me/results/7c016163-fc71-4868-a344-e4445a467bab/

SH256 hash:

9a577d31e2c9a641f75ddaed2b0c4009e283d51c005e3fbbca81786bff761f21

MD5 hash:

ed61a5aa0f4d1ce89382122fd40086cb

SHA1 hash:

12d91d13eec29f2fd66fa4884d26798ffb2e1b34

Link:

https://www.unpac.me/results/7c016163-fc71-4868-a344-e4445a467bab/

SH256 hash:

cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

MD5 hash:

868ee45a89360fac19810c9dcfb6e9aa

SHA1 hash:

3401e4c0953ad4465f617c62b9d248745783b427

Link:

https://www.unpac.me/results/7c016163-fc71-4868-a344-e4445a467bab/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cf72911e54f5/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/cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

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:	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

zip 148b746bef9c1b3b166bec48b28d98e655bbe87bd161fa09ae72674f7b15c7a3

AgentTesla

exe cf72911e54f5c89131710f7032eb6b670a4f89986d75566ac7f4c86db1141a6f

(this sample)

Delivery method

Other

Dropped by

SHA256 148b746bef9c1b3b166bec48b28d98e655bbe87bd161fa09ae72674f7b15c7a3

Dropped by

MD5 aaa6f4688007aa92ed409c56a3e3b952

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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