MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733. 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 18 File information Comments

SHA256 hash:	a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733
SHA3-384 hash:	2bcf113f47ec7c551b849dbad180a5e60e7d375af5469400dbea0b9ac65fbf5b46d686b567152d870369e62dde6e5f04
SHA1 hash:	ffe308ed7a4f05211b878cf84b904f917cb176cc
MD5 hash:	46e1fb5a1c2457674b6dfda99c0fb107
humanhash:	early-timing-orange-grey
File name:	Payment Advice.pdf.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	712'192 bytes
First seen:	2024-04-30 19:12:16 UTC
Last seen:	2024-04-30 19:16:33 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:P2iNzeWFm+3lwzQ1wmSh/MT2F5tEndycVxbiJRpqii5yo2dqA2stiCTcAH0z64d8:P1tRFm+3lSQ1wNZ5S7Vxbi594RRAjpf1
Threatray	3'973 similar samples on MalwareBazaar
TLSH	T12AE42300B7D48F36D6BD93F22634142A17F67C6B6261E7294EE275CF5D62B008B21B63
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 payment

Intelligence

File Origin

# of uploads :

# of downloads :

505

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733.exe

Verdict:

Malicious activity

Analysis date:

2024-04-30 19:15:14 UTC

Tags:

evasion agenttesla stealer

Link:

https://app.any.run/tasks/7acd667c-4025-411f-9f97-2183e07893bf

Note:

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

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL

Porcupine.Malware.58887.UNOFFICIAL

Sanesecurity.Rogue.0hr.20240430-1142.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Searching for synchronization primitives

Creating a window

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

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:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/663142c2fe18f197f0ca1580/reports/835a5f02-dde0-475d-98a7-426fbbb84ff6/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/80e32bf9-c8b4-40bc-88f5-f810b1c310ab

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1434299

Signature

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

.NET source code contains potential unpacker

.NET source code contains very large array initializations

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)

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

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)

Sigma detected: Suspicious Double Extension File Execution

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/a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2024-04-30 06:04:56 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=uc3use2efxjmbzzxcnyeweywdxyq2462qwatvtv6uoef655oo4zq._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

AgentTesla

dc275961e09616fcda47d2acee085f1742c22e9066465eda4a06672d2efffc8c

AgentTesla

e0581b57a7e87e38a5a0ebf8861f816a415bdcb037111f32ba4bdbdc78ca9be3

AgentTesla

+ 3'963 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240430-xw29hsfh24/

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:

04d5eed0caa3d25f865bf61d31cedd0f2248428326475a0a1002a45c95fb8a71

MD5 hash:

f68676bccee62256071eb836c1bf86c2

SHA1 hash:

aef487f00f2eb6f36da74e84b154fc05dc5b3cd2

Link:

https://www.unpac.me/results/1f619846-1185-4363-ab49-6b6c380f9cc7/

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/1f619846-1185-4363-ab49-6b6c380f9cc7/

Parent samples :
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SH256 hash:

7d592a5fc2662373b0200e5590cb1eeb8f00a1061af1657e476113d2134cd2a6

MD5 hash:

bc900e3fc47830420d713c1e33cbed15

SHA1 hash:

1e0241627fc669541a25d2dba5a48b43ec1718fe

Link:

https://www.unpac.me/results/1f619846-1185-4363-ab49-6b6c380f9cc7/

SH256 hash:

8213a6a34c36db37675298dcbbbb36451ddf233c1af7e8783be225d3e4c08271

MD5 hash:

a2f5dafc17432fdea2f85c9c972167ca

SHA1 hash:

004139faa5268e3fd9fcc92710d0e331d32a2d7b

Link:

https://www.unpac.me/results/1f619846-1185-4363-ab49-6b6c380f9cc7/

SH256 hash:

a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

MD5 hash:

46e1fb5a1c2457674b6dfda99c0fb107

SHA1 hash:

ffe308ed7a4f05211b878cf84b904f917cb176cc

Link:

https://www.unpac.me/results/1f619846-1185-4363-ab49-6b6c380f9cc7/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a0b74913442d/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/a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

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

z 5a861a0689844632ad0552e90d0ef57aad63bc500b5a8ad07124fe21426eefdd

AgentTesla

exe a0b74913442dd2c0e73713704b13161df10d73da85813acebea3885f77ae7733

(this sample)

Delivery method

Other

Dropped by

SHA256 5a861a0689844632ad0552e90d0ef57aad63bc500b5a8ad07124fe21426eefdd

Dropped by

MD5 dc47398ae3a75687b405326b3b7a68d1

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

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample