MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb. 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: 18

Intelligence 18 IOCs YARA 17 File information Comments

SHA256 hash:	35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb
SHA3-384 hash:	2ea9a1513bb722a85918515dfedbc3250ffadace409539b9af17d0447487e6a2384e53398a199a396ef7ae86755c7b48
SHA1 hash:	36b7d08b0a7d06573cc8eebce3adfe515d0cb94a
MD5 hash:	bb9c49e2dd4f2e4d78ead6adeebf5b69
humanhash:	ack-october-hot-summer
File name:	inlawQzshlu.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	2'429'952 bytes
First seen:	2024-04-09 15:33:36 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	49152:M+oGGCO1ex2t+Qyxc/jB03C3JAo+0gjlj+rpa8PTAZUV1AgI9jEr:MZGO1e2dImJAo+Vljoa8PkK
TLSH	T199B5236043A9C26FC3BD40BBF095060716F2C0679577BFCB6765AAF928177C87A8314A
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	malwarelabnet
Tags:	AgentTesla exe FormBook zgRAT

Intelligence

File Origin

# of uploads :

# of downloads :

420

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb.exe

Verdict:

Malicious activity

Analysis date:

2024-04-09 15:35:01 UTC

Tags:

evasion stealer agenttesla

Link:

https://app.any.run/tasks/10e46172-a0f0-4bb5-b82d-d015cb6f80b6

Note:

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

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

Sending a custom TCP request

Creating a window

Stealing user critical data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/66155fecacb99fc8ffbca60b/reports/846fc22d-7907-4611-bda6-813ad035c50a/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb

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/956086b2-4991-4090-be0f-d04ea73a646a

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1423133

Signature

.NET source code contains potential unpacker

Check if machine is in data center or colocation facility

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

Found malware configuration

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)

Queries sensitive video device information (via WMI, Win32_VideoController, 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 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/35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-09 14:43:15 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

15 of 24 (62.50%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gwzue6edycye664l4zb24hkeapqzbc5oh6yjyglfuvqofp3dwp5q._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

Result

Malware family:

zgrat

Score:

10/10

Tags:

family:agenttesla family:zgrat keylogger rat spyware stealer trojan

Link:

https://tria.ge/reports/240409-szq87sah82/

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

Detect ZGRat V1

ZGRat

Unpacked files

SH256 hash:

133642dc5efc168cd701a25af7a053f314064aa0f4a3635497f5197ad28a1679

MD5 hash:

9fb8dc52703de070df6cd550d150178a

SHA1 hash:

ca9088e839371f075cc286bc8dfcd78265fbb835

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/31df8b9e-ea49-46ff-a205-bde97a25f609/

Parent samples :

2acfd8d4eea4f684b15f28d933afb2ec79f3978cdc603ea29cfb2d9844dfbb60
ae928336d75efb8288f9a6c3fa2d079f4ac8aa7aa73ae259ae41a6d25c842a4c
35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb

SH256 hash:

3ee85ddaf1ab4c9d3d3717a28fbab1f94ec48a9c768b9840227a8f0ab47a56f4

MD5 hash:

97024078f393f49be8ba5a2ea82dbef1

SHA1 hash:

74e33625ea68eb7766d4880f9dd62056d48bc583

Detections:

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_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/31df8b9e-ea49-46ff-a205-bde97a25f609/

SH256 hash:

129d60b3783589fc38c8e18d492cd933e742850ed5f81bd810899d54c5c74419

MD5 hash:

ce3af6092293d468409a8dfd320d52d1

SHA1 hash:

73e88a0d8801be10a637481b22c150124551a040

Link:

https://www.unpac.me/results/31df8b9e-ea49-46ff-a205-bde97a25f609/

SH256 hash:

af0e9989eebd30e818eed271c9e4606c7f28f928d56219c33fe44e6550eaa70e

MD5 hash:

681fd5fe20eef75c217c6e35b918350c

SHA1 hash:

62b7b3e3be94957ad4fb56ed50e77d6e38c726ed

Link:

https://www.unpac.me/results/31df8b9e-ea49-46ff-a205-bde97a25f609/

SH256 hash:

26d07e589e2fbdd443adaf7704ba344c22f13fefa1b87625c86d1dbd7b59ecc3

MD5 hash:

b3c18d976b895f63afae60ff8ecd00a4

SHA1 hash:

321e72d3b77606757e26337aabcfa662f004dcbd

Link:

https://www.unpac.me/results/31df8b9e-ea49-46ff-a205-bde97a25f609/

SH256 hash:

35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb

MD5 hash:

bb9c49e2dd4f2e4d78ead6adeebf5b69

SHA1 hash:

36b7d08b0a7d06573cc8eebce3adfe515d0cb94a

Link:

https://www.unpac.me/results/31df8b9e-ea49-46ff-a205-bde97a25f609/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/35b3427883c0/report/overview.html

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

Threat name:

zgRAT

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/35b3427883c0b04f7b8be643ae1d4403e1908bae3fb09c1965a560e2bf63b3fb

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:	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.

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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