MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c. 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

Formbook

Vendor detections: 15

Intelligence 15 IOCs YARA 22 File information Comments

SHA256 hash:	b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c
SHA3-384 hash:	2a7676bf5dcbaaef26eb7d57e98614cc89413bc884e95d4cf1e5403cc5835bc5cf18c3a0445e112bb45caa968f83f233
SHA1 hash:	f8d66bb0cd5e4f95015cd9f1b47a1c30ac883f95
MD5 hash:	793868cbdce3d5b279ccaf465702a31a
humanhash:	lima-triple-cold-california
File name:	b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c
Download:	download sample
Signature	Formbook Create hunting rule
File size:	743'424 bytes
First seen:	2025-07-07 15:09:00 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:NgrfHnbS39HAbsdMSHA97m9B+3B2D5FKBromE2Hcjl72:SHnbS6bTs+3B6i7EV72
TLSH	T104F4012C228E5B22C1FB5BF81411D0B653BA6D9E7551F71A8FC52CEF3D62BA20906713
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
Reporter	adrian__luca
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

27062025_1848_26062025_PaymentArianmaritime0626.pdf.lzh

Verdict:

Malicious activity

Analysis date:

2025-06-27 18:55:59 UTC

Tags:

arch-exec evasion stealer netreactor agenttesla

Link:

https://app.any.run/tasks/fc2ab048-c20d-45d0-b8d9-ea8ed3580d08

Note:

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

Detection:

AgentTesla

Link:

https://www.capesandbox.com/analysis/13230/

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=686be382c9eb9747376775c9

Tags:

spawn lien hype sage

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Reading critical registry keys

Launching a service

Sending a custom TCP request

Stealing user critical data

Verdict:

Malicious

Labled as:

Genie.8DN.Generic

Link:

https://www.hybrid-analysis.com/sample/b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c

Gathering data

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable PE (Portable Executable) SOS: 0.00 Win 32 Exe x86

Link:

https://app.malva.re/file/793868cbdce3d5b279ccaf465702a31a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c/

Verdict:

Malicious

Link:

https://tip.neiki.dev/file/b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2025-06-26 07:48:16 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wssg7g7hlb7fzji7fjgcb2h5bdzzyliog2u54jc2ch4q54i7ycga._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla discovery keylogger spyware stealer trojan

Link:

https://tria.ge/reports/250707-sjpensgm4s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Agenttesla family

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/55c717e5-57ff-4139-856b-238525936c90

Unpacked files

SH256 hash:

b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c

MD5 hash:

793868cbdce3d5b279ccaf465702a31a

SHA1 hash:

f8d66bb0cd5e4f95015cd9f1b47a1c30ac883f95

Link:

https://www.unpac.me/results/8444ff3c-03b7-4e83-b4f0-cfb09e10a601/

SH256 hash:

9e0779ca9d99a77c5e2e906edddd3311db46623221f64389822ee5372cffdc8b

MD5 hash:

daab30f49a81c15831c154e836566227

SHA1 hash:

0c8366aeec69bffc372c348633120d1ac9e3c7d3

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/8444ff3c-03b7-4e83-b4f0-cfb09e10a601/

SH256 hash:

9efd46a9c5e3bf3e5625c298273414c245790d6fa8c12ace57f207b1205a92f2

MD5 hash:

1246936c5ace209606f50ac016bf0787

SHA1 hash:

6c459bae924c6d6574c780f8ef8606b23e767d34

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/8444ff3c-03b7-4e83-b4f0-cfb09e10a601/

Parent samples :

ee2c474d321d710e3e3d5808bde560a2bd3e94cef6d9b457149a2c3300972228
7e545a76c16dee6d24d3e86c6667c07bcd0f76064f232463b58fd4ec6d930090
71061c247762961b52c05043f9aad7acd24d6be55da97b79136685dc8d71fbcc
35bef5e9ce90087beef7cedaced82461cce0fd2571cb2d4d174a582939d9fde4
0b5155ade6b80a0f9988739163cdf89fdcd12868bab52cca60c7009cae8546af
17e43b76f4a98cd9bf4f0e1d7c23730eaf0e86c228c4f1ddb0961b738be166d9
b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c
be6cfa96f2af2d275323fc9722c8bef9d4b0abd5716a7d344d6dc6ece60a72c5
cabe2979b93dece3c78479d593c5eaf90613e6fdeb33172b651e52f93b521caa
ccfb1cfc174940c9529f5acb8a19b66ffc570311fae21d4eae270434dfbe2513

SH256 hash:

675762bdfaa0f7d6abf9e63c77c13e8ac48c19c865d9643622ecf7d651fc5884

MD5 hash:

c729e5ed858d90e51c5d82c9a3a9ec28

SHA1 hash:

8817326283e4c06e9863ce25ff303cbfe428e03c

Detections:

win_agent_tesla_g2

AgentTesla

Agenttesla_type2

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Link:

https://www.unpac.me/results/8444ff3c-03b7-4e83-b4f0-cfb09e10a601/

Parent samples :

c2df3d7537c43e85dfb395dd000d8c6f887ce891b9f05202406c44202823b586
b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c
de9eeab3b5c6013da6e46431f20f865c15086d8708fb81a9da1e0de2629b8280
08379da65d80bac62f2bed130768e19210cf2344f74845a977fb8fa8237fb43d
abfeff23a5c23527cfc36df6a644b325c38bdc522eaa6c83c7cb072957f3b1a0
bf4ca953509256578f1484ff71aee4ad84e6598de24134e23e189d5e2f9468dd
2fe9c94efb856517f92bb543c65901ec76b46eaf1ea0d8ae7ac7bad689b9a0af
d9e52d9da6fe2b3a961b9bc07004f8a02190f41b17f6ba0473a1325d14e249a4

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/b4a46f9be7587e5ca51f2a4c20e8fd08f39c2d0e36a9de245a11f90ef11fc08c

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:	agentesla Create hunting rule
Author:	Michelle Khalil
Description:	This rule detects unpacked agenttesla malware samples.

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:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

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:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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.

Cape

https://www.capesandbox.com/analysis/13230/

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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