MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6. 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 20 File information Comments

SHA256 hash:	a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6
SHA3-384 hash:	9c65f4aeda4c787dbb3feec0ed634d347bc1f2b04e5a395fd5e2562900c42913c92ed0861b6f1fc940e3eb1112fc0583
SHA1 hash:	edf0d85083e1cc9e0053833005d9e3a630955377
MD5 hash:	0f0ee25a8b1b5211183bc818ecdf422f
humanhash:	december-lemon-don-delaware
File name:	Spare part list.pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	790'528 bytes
First seen:	2024-04-24 10:23:43 UTC
Last seen:	2024-04-24 11:37:43 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	24576:CF1KSdrnKceUoI6qB26yaDPm0tCphRNtJkJ312Zx:sQOrKceUfVs0tCphRNtJkJl2T
Threatray	4'001 similar samples on MalwareBazaar
TLSH	T1FDF412D536BC5F27D47C83FA441A842107F5E0172462E7CB5EC2B2CB2E63BA54A12D6B
TrID	61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.1% (.SCR) Windows screen saver (13097/50/3) 8.9% (.EXE) Win64 Executable (generic) (10523/12/4) 5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter	threatcat_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

375

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6.exe

Verdict:

Malicious activity

Analysis date:

2024-04-24 10:25:46 UTC

Tags:

evasion smtp stealer agenttesla exfiltration

Link:

https://app.any.run/tasks/96cc85c3-8414-49ec-a982-f1a63bd2c8f9

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

Launching a process

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

Stealing user critical data

Unauthorized injection to a system process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/6628ddcfd2fc149e411bc3c1/reports/0a47725c-b53e-45fc-a28a-c4efc334caa1/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

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/2f3d7230-2574-40ab-b980-b1245e735bed

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1430951

Signature

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

.NET source code contains potential unpacker

Allocates memory in foreign processes

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)

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 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)

Sigma detected: Suspicious Double Extension File Execution

Snort IDS alert for network traffic

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 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 an obfuscated file name to hide its real file extension (double extension)

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/a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6/

Threat name:

ByteCode-MSIL.Trojan.LokiBot

Status:

Malicious

First seen:

2024-04-24 06:30:34 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=vh5fq35wfuc4v4qxlyj7yigizmsf2sicsyn3qm6ipev67vphwdda._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

6ea6f267651edf5a261e20c68eccb8881e0aaeb0d96189980d18aa39b15b8848

AgentTesla

a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

AgentTesla

b58782fa1f8c4ee6b469c7467eae7f371be4793685dc655087af6b413e4a0c18

AgentTesla

dc275961e09616fcda47d2acee085f1742c22e9066465eda4a06672d2efffc8c

AgentTesla

+ 3'991 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240424-mfdacagg61/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

AgentTesla

Unpacked files

SH256 hash:

1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d

MD5 hash:

e4b5d57e9e46a4e76075b5b92f71577f

SHA1 hash:

d76dc165724148193c6911cc75fc62c198737d3a

Link:

https://www.unpac.me/results/2e753950-1b49-41b9-8ce7-a86b6b475477/

Parent samples :

d89ea6a01347b82f963ed7960583e5d76c6a07e91852fae83bc290e0f64a06b2
3f700fd41c6cca501d50cc2f62afd8e0d951efc1a918aa65ab3e84ee563ff1d6
26a36920e7a463398a4251828ec02fd965ad1d782f819b0c04904706efb083be

SH256 hash:

276962544e10e6c2ed420bee65cbbd2551e205d70a37121f7460dfd068200917

MD5 hash:

f47aab10cb7c4eda466778c0b83f3a01

SHA1 hash:

d40bcc6482b14cddcea0e5658b25c285095720a6

Link:

https://www.unpac.me/results/2e753950-1b49-41b9-8ce7-a86b6b475477/

SH256 hash:

a3de65d9607fa28995b6d60b0ad501d36107454865c7a74e8121ec11320ae565

MD5 hash:

7dfefede4d4b4d15fe2c4d83996e9e1a

SHA1 hash:

62e0258f0a8d23d17225ff7ad0b304ab12a9fd6a

Link:

https://www.unpac.me/results/2e753950-1b49-41b9-8ce7-a86b6b475477/

SH256 hash:

d9cd4bd5f06e2a127f455f3bd684b56fc7d4916c6b659f1c054023fdd1cf200e

MD5 hash:

2297dee2ecf1af9e7fdaa38d6a74524d

SHA1 hash:

5fb8226ee7f2364b06e203e5ded4c929004e7624

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/2e753950-1b49-41b9-8ce7-a86b6b475477/

Parent samples :
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SH256 hash:

a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

MD5 hash:

0f0ee25a8b1b5211183bc818ecdf422f

SHA1 hash:

edf0d85083e1cc9e0053833005d9e3a630955377

Link:

https://www.unpac.me/results/2e753950-1b49-41b9-8ce7-a86b6b475477/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a9fa586fb62d/report/overview.html

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

Threat name:

AgentTesla

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

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:	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_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_imphash Create hunting rule

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 a9fa586fb62d05caf2175e13fc20c8cb245d4902961bb833c8792befd5e7b0c6

(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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