MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c. 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: 17

Intelligence 17 IOCs YARA 16 File information Comments

SHA256 hash:	5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c
SHA3-384 hash:	a98becb17fa7b12c2ca611d2cb9d69cd6b9787bbea6514f658eea1e1d5a3c5b4287665e02501419fa76e5bdec287f152
SHA1 hash:	6079db6c06e4117bd04d220f9e0247db6b17488a
MD5 hash:	08cf6d04a330770283df4ca6d572e7ff
humanhash:	one-uncle-triple-delta
File name:	rIlzbkxg.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	4'553'216 bytes
First seen:	2024-06-14 12:41:48 UTC
Last seen:	2024-06-14 13:43:08 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep	24576:FstvGJbA7PhDDHkW4Ut8DcOlbvu6zDfISAiTXWPKaAi/20yuzR6FM3QrRpyk/aWi:
Threatray	4'279 similar samples on MalwareBazaar
TLSH	T1DE261AF8A1AB85E1F8079D806978BE97067331B3DDD90C20276D7A040FBA9597A4DD0F
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 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)
Reporter	FXOLabs
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

380

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c.exe

Verdict:

Malicious activity

Analysis date:

2024-06-14 12:44:08 UTC

Tags:

evasion smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/af733b37-9e6b-4ad4-b087-8fd6070a5dde

Note:

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

Detection(s):

SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL

Porcupine.MSIL.Kryptik.AJDZ.241118.UNOFFICIAL

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=666c4d209172918f990d9c1ewin7simulatehigh_evasion

Tags:

Heur

Result

Verdict:

Malware

Maliciousness:

Behaviour

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a process with a hidden window

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

Connecting to a non-recommended domain

Sending a custom TCP request

Creating a window

Stealing user critical data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c

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/b078204a-75cc-4f6d-8372-9097286a5e1d

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1457241

Signature

.NET source code contains potential unpacker

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Check if machine is in data center or colocation facility

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Found malware configuration

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 domain / URL

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

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)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Costura Assembly Loader

Yara detected Generic Downloader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-06-11 19:00:41 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

26 of 37 (70.27%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=lvyzv73fagnrf3qo7jp4jjhdenchnlctimmckutpfap2t7u6v4ga._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

Formbook

36333708c9444391b6a026b688b2ee4429165a1d3fe0fc3869ae67095f050ce4

Formbook

4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea

Formbook

9590e1d446b60f2a62ed6e543d623a857061ca1e80a2a499a9ef7d6c97cc5cb5

Formbook

c177812f5ee5c7643659dba85dcdb7d86134d2a437a8c7934c9b63eb3a5b4530

Formbook

c907b5ee8b9aae5ad661042f2aed0338df90653b95dad072ef8d8c0b582bc46b

Formbook

ec2271f3c4ca253b780325c5b0486672f7f4eb8dd9c355501103aa87f0c5f9f4

Formbook

+ 4'269 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240614-pxcfgsvdjl/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

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:

adcf92184b4e7bf6f36ff0fd870518a228c4b81db299ef2c4312a2837eadfaa3

MD5 hash:

b91a861e00bebc5194c59560107896a9

SHA1 hash:

6d1f0d0321ba20854fd146971a1159728b48f017

Link:

https://www.unpac.me/results/1bfcceb6-a920-4343-9c90-299fe04fc300/

SH256 hash:

0a9e668b23fdd273acb8ac8096e435e09f581d67203cf2475ef6f90e6b0965e2

MD5 hash:

4f9ade14f96d7c93f918682e5edb11fe

SHA1 hash:

6955a5974802c075aacefd6836e73cd1b68a02e4

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/1bfcceb6-a920-4343-9c90-299fe04fc300/

Parent samples :
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SH256 hash:

2cac815937d7d2bda0428c684d1d417fcb8012a180455def35583bf4d68b8b77

MD5 hash:

a75c575364ab5d3364da1e3d64476fa0

SHA1 hash:

494904868dbf600f71cb9271770bf8e5eca65ce1

Link:

https://www.unpac.me/results/1bfcceb6-a920-4343-9c90-299fe04fc300/

SH256 hash:

b0e8d8865a8b39264858be0b22b573d996d820c7d8af730958ace91e1aa97a2a

MD5 hash:

954124300f4824e06b4d5bdaaf8460ff

SHA1 hash:

17537931287137e16d9391690580d76c6b4721f3

Link:

https://www.unpac.me/results/1bfcceb6-a920-4343-9c90-299fe04fc300/

SH256 hash:

a17b9053dcd8fd7ae0b4652bf1025f589ec62b8d565cf779e7474d8c94926ac6

MD5 hash:

c958fd2af2e2805a6aa8c2d032a47c54

SHA1 hash:

1475eb9c358f0f466b957a7311e36a3043548855

Link:

https://www.unpac.me/results/1bfcceb6-a920-4343-9c90-299fe04fc300/

SH256 hash:

5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c

MD5 hash:

08cf6d04a330770283df4ca6d572e7ff

SHA1 hash:

6079db6c06e4117bd04d220f9e0247db6b17488a

Link:

https://www.unpac.me/results/1bfcceb6-a920-4343-9c90-299fe04fc300/

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c

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_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:	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:	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

Formbook

exe 5d719aff65019b12ee0efa5fc4a4e3234476ac53431825526f281fa9fe9eaf0c

(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

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