MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5. 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: 11

Intelligence 11 IOCs YARA 10 File information Comments

SHA256 hash:	d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5
SHA3-384 hash:	e9b35b65ba7aaf0582b011d8c90cd0a3403bd502b86464ccae34925871c4eefdad8aa404dd19804adc68331b2b86bf77
SHA1 hash:	ba86690129749079994f256f47dd5ffe4b8c8232
MD5 hash:	f7ae2d39e4bb7cc9f569cf6891db36f8
humanhash:	mobile-tango-stream-johnny
File name:	Actualizare documentație FRX-V201.02-24054310.xlsx.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	3'159'437 bytes
First seen:	2024-04-30 09:37:31 UTC
Last seen:	2024-04-30 10:36:02 UTC
File type:	exe
MIME type:	application/x-dosexec
ssdeep	49152:ZzBfc7DNtZEH6vX+YHqMIEV0K3A/GLuU38L2bOH5yW2BpRxf0lz0UBIl/G4DUdJj:ZzultdvXQ5LGSU8lkBZf0lgbDUjkc
TLSH	T121E5CE42D77D471BD55E42B8D86100C03BA6EB88E3E7EEA9880AD42D6C43720F675E77
TrID	70.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 12.9% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 2.5% (.ICL) Windows Icons Library (generic) (2059/9) 2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter	NDA0E
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

336

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

36fd21991bd3da8a76038d452fcb51707d2a7a9cbdd65a0fc11be39a47ef601c.z

Verdict:

No threats detected

Analysis date:

2024-04-30 09:37:32 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/517687bb-4f8a-495a-9239-7f44f2507da5

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Launching a process

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Using the Windows Management Instrumentation requests

Reading critical registry keys

Creating a window

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Stealing user critical data

Unauthorized injection to a system process

Verdict:

Malicious

Labled as:

MSILHeracles.Generic

Link:

https://www.hybrid-analysis.com/sample/d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/0252c885-71ce-4280-bd9e-82d8ae40810a

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1433967

Signature

.NET source code references suspicious native API functions

Allocates memory in foreign processes

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

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: 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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

Verdict:

Benign

File Type:

Link:

https://malprob.io/report/d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-30 09:38:09 UTC

File Type:

PE+ (.Net Exe)

Extracted files:

AV detection:

16 of 24 (66.67%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=2s6fa5zgmtov6wmrxwiorgex3nw56wenkmadzxpisu6he3hwc7kq._file

Verdict:

malicious

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla collection keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240430-ll2z8ahe31/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

AgentTesla

Unpacked files

SH256 hash:

d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5

MD5 hash:

f7ae2d39e4bb7cc9f569cf6891db36f8

SHA1 hash:

ba86690129749079994f256f47dd5ffe4b8c8232

Link:

https://www.unpac.me/results/7a5039d1-ed4c-4efa-8631-f5ef92a2fe36/

Malware family:

AgentTesla.v4

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/d4bc50772664/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/d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5

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:	AgentTeslaV4 Create hunting rule
Author:	kevoreilly
Description:	AgentTesla Payload

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	MSIL_SUSP_OBFUSC_XorStringsNet Create hunting rule
Author:	dr4k0nia
Description:	Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:	https://github.com/dr4k0nia/yara-rules

Rule name:	msil_susp_obf_xorstringsnet Create hunting rule
Author:	dr4k0nia
Description:	Detects XorStringsNET string encryption, and other obfuscators derived from it

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:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Trojan_AgentTesla_a2d69e48 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 (GUARD_CF)	high

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