MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a. 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: 16

Intelligence 16 IOCs YARA 19 File information Comments

SHA256 hash:	1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a
SHA3-384 hash:	08813167c6101c023ef268f225d2a9b6962eb1e61a333ede520cfd469d2f394a9b614106e2e0422b913c214603f55959
SHA1 hash:	f3f5eb70ad9c580c07284778c9e91c571e5cc191
MD5 hash:	5f8a7266c1e06b9b054745bd364bc7ee
humanhash:	indigo-pip-muppet-low
File name:	AWB 1ZR7V35870449393496.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	763'400 bytes
First seen:	2024-04-10 06:22:36 UTC
Last seen:	2024-04-10 07:40:14 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:8NR4EoOBKMNHlgxIqDdNyEFojZX+evK/iLohvd1yx6FO66jHR6mg9gFUwNHEFuvi:OoOBrBlK9dgRZXF9UhFxVcomNFr5CL
Threatray	4'480 similar samples on MalwareBazaar
TLSH	T1B2F423A23BA65D97DB7913B64DB4218087F0BB7A3132C3C9DCC1D18A6DD4B8C029566F
TrID	69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.0% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.2% (.EXE) Win32 Executable (generic) (4504/4/1) 1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):
dhash icon	185210d0d01430b2 (4 x AgentTesla, 3 x Formbook, 1 x RemcosRAT)
Reporter	lowmal3
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

322

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a.exe

Verdict:

Malicious activity

Analysis date:

2024-04-10 06:25:42 UTC

Tags:

stealer agenttesla

Link:

https://app.any.run/tasks/445a2ec5-882e-4e40-8e3b-70efc0d5b2ae

Note:

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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

overlay packed

Link:

https://www.filescan.io/uploads/6616304d35699b4745c43f8c/reports/6b99aefc-615e-496d-b921-91c316fc33a6/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a

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/13e288b0-b80f-4da7-b5b3-a1c91a2d3d79

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1423642

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

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)

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

91%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a/

Threat name:

Win32.Spyware.Negasteal

Status:

Suspicious

First seen:

2024-04-10 02:24:03 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 36 (55.56%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dn4vwlu6gxrtxpqpiq7kwf37u52xb7xoehhqyywsigdvuf2rnqna._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

85f1e28eb004051825e9d38a727ac8971eab4b3e1585339a33596fb7101e5ac6

AgentTesla

9f4ff6a61fea6fc87d56dc8dc274522d38e34255ccdb39a6888686b920ec5ac0

AgentTesla

a1018f6e1828a26fe95f6a0c4ef3b1b55b13966fbfd11fecc41a1b295457253c

AgentTesla

a6bf938384c116808ee849e15dfe627610056c03bf1626268bc88d25d35cfe79

AgentTesla

+ 4'470 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240410-g5h91aac9y/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Unpacked files

SH256 hash:

a3282bf66f69ec58d02efe63483ff2923e6ef890f70412fe787ec84dc8804470

MD5 hash:

439557e28d3384c2d75b9f4072034cac

SHA1 hash:

ecacb0cf49dc9419632d77c5a04c8ce126e54380

Link:

https://www.unpac.me/results/b9cf4548-7fc0-4360-804a-a58737e63806/

SH256 hash:

8ab93fd6e0812198fd1536fdce2c3365a31ccda5d10e75bfc259f32c832d6087

MD5 hash:

4465a2eaf78a7d05b2631bb494444ad5

SHA1 hash:

bbf0cd16a1b745fa7a3b03e9a8caf78236358430

Link:

https://www.unpac.me/results/b9cf4548-7fc0-4360-804a-a58737e63806/

SH256 hash:

ad25f184012bac900631b3440a22caf0dc13352cef8b90bf22610b40811e0c74

MD5 hash:

5c64f27e1c2e9fd61ee888aaf5b574b0

SHA1 hash:

9c878114a291f5b3c42addf38d1c0ca2006aba50

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/b9cf4548-7fc0-4360-804a-a58737e63806/

Parent samples :

5a2666c6e1d72ae675ade0ecbc29228224b3c631151019891e6f07ec7f5aefe8
c10a19322708c99c4ef58c4c756f9b9091375143e45bbd6511acce9ecb8a8d05
0a4c89d0cbbc4857a4ae272d302ae66b9967181014b38368df83be46cbdf5c25
12f1562e82415f8f320bc830dc6047870ea78ceb7e827af394dbe428d8ebc930
70517116e2400906af6125849ac27b66159a45f6f1782178351e82bfe5ba205c
1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a
286b7dea4c238d6dd5153e5445ee0741a9497ce1543093480c556a258910638e
3edd3fe6434d631459584bfef13f646c14866e7d99121a3067d10f1e330b28e6

SH256 hash:

9ab47fbda035c91bb267f39a7861a542d9079243c4853ef60fa622f40069a5e4

MD5 hash:

d99a6c12be38ccdd3ad549334563b46c

SHA1 hash:

0313807dcad283ed0df9a02ed9fb471001bdd940

Link:

https://www.unpac.me/results/b9cf4548-7fc0-4360-804a-a58737e63806/

SH256 hash:

1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a

MD5 hash:

5f8a7266c1e06b9b054745bd364bc7ee

SHA1 hash:

f3f5eb70ad9c580c07284778c9e91c571e5cc191

Detections:

INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438

Link:

https://www.unpac.me/results/b9cf4548-7fc0-4360-804a-a58737e63806/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1b795b2e9e35/report/overview.html

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

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.

Malspam

AgentTesla

exe 1b795b2e9e35e33bbe0f443eab177fa77570feee21cf0c62d241875a17516c1a

(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 (GUARD_CF)	high

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