MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea. 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: 15

Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash:	16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea
SHA3-384 hash:	8c2a135c40fcc348f2e95585008025af063da73ebc6503efffe79cbdf90355757be6e374c59cc56472f4840c81dee8c3
SHA1 hash:	b407b411806659a874ce20d38b62c891703a4bce
MD5 hash:	93f87d1e11c67dbc47ff98369811e826
humanhash:	winter-ohio-football-bluebird
File name:	PO-095325.scr
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	578'048 bytes
First seen:	2024-04-19 15:12:41 UTC
Last seen:	2024-04-19 15:25:35 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	6144:adD9YbLuzSyYVeYrmsmERAOU4CmhqQ+cIxJF33hnaoSGCjc/PmKFDq90h5VWSD2w:arrAwXdERU4LxBUzAVc/PmKe0D
Threatray	4'138 similar samples on MalwareBazaar
TLSH	T121C4AFC2309455D6E86A44F1BC09DCA039EB35AFD6B2A98DBA97D61FC0A3313051B53F
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):
dhash icon	5819333331393939 (1 x AgentTesla, 1 x Formbook)
Reporter	threatcat_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

367

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea.exe

Verdict:

Malicious activity

Analysis date:

2024-04-19 15:14:19 UTC

Tags:

evasion smtp agenttesla stealer

Link:

https://app.any.run/tasks/879d1ab3-ff41-41a2-abb6-ccaa2df222ea

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Using the Windows Management Instrumentation requests

Creating a file

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Reading critical registry keys

Stealing user critical data

Unauthorized injection to a system process

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea

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/06ae9db5-0db5-4114-b432-ef65411b8f4e

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1428828

Signature

Allocates memory in foreign processes

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)

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

Loading BitLocker PowerShell Module

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)

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 steal Mail credentials (via file / registry access)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-19 10:58:02 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=cycdzoyiunrkwqsrixpnsrd3zq4cyk44t2z3k4dqj3nlxzbhn7va._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

6f58a874d38b7f49e2cf380f4cbf7bf3c6367b9d8ea4bca7dd81f83a3965e81b

AgentTesla

ab6799b9abcfccd9d1813d07d83b325737221cf242126ad0918c2b84cc16c815

AgentTesla

b81530cca77b78402585d96bcfc8e417aa86dd53ac1966601ce8c32bbf517cc3

AgentTesla

c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf

AgentTesla

+ 4'128 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240419-slqqhsfe45/

Behaviour

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

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

Unpacked files

SH256 hash:

f8d90d67907fd4f6d0fd054e52f462b9751dfbcafc773ac10e7769216cceaf9d

MD5 hash:

ae84db497e0ed1453a32f4d5e56d3825

SHA1 hash:

e62d1e46b022abee7ab7e0d68cec08b260e373ec

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/732dc99a-5334-4e6a-9610-b85494e01f2d/

Parent samples :

99677c9af723d0773f67fe035205dbbd9d857022b1619fc33fd83808072d2caa
16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea
38e5e3e1fc431520dbf8944828ad847ea054ea8ffda2f579e2c29bc53a84f94a
d1b0b9a6b80f54be2a14ff19f3bd682185848d92443fa555a08cb07fa630a230
0f0b721073a35fe3e6b37d75582704acd5bdc1b3d71343e74d6fec59ac932deb
9b6fc00623210be4340042bb63c2e7d674cb62de15d8d296ac93a6ad57e78984
18bb8b44a363513d2359eaf430f2e0a1559b6405d66269f4a77c3d052cfe01a9

SH256 hash:

d56b913f4d08073a92c1b85ef922c612e95581c6a6bfa45b5eb1b0c1c982c489

MD5 hash:

2ea86f87b3971f10975cebcc629a2a71

SHA1 hash:

ad079bb1792a8dcf356bbcca1c6105309c65607d

Link:

https://www.unpac.me/results/732dc99a-5334-4e6a-9610-b85494e01f2d/

SH256 hash:

966e4849b562728bff4bbd69fadc2a566899a3d983a7ff5304e72ecf6cfcd772

MD5 hash:

55857f507f2e6dace00eafaac0391548

SHA1 hash:

1dbfdcd721d24918aae25344bc8b715405702aba

Link:

https://www.unpac.me/results/732dc99a-5334-4e6a-9610-b85494e01f2d/

SH256 hash:

16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea

MD5 hash:

93f87d1e11c67dbc47ff98369811e826

SHA1 hash:

b407b411806659a874ce20d38b62c891703a4bce

Link:

https://www.unpac.me/results/732dc99a-5334-4e6a-9610-b85494e01f2d/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/16043cbb08a3/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:	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.

Malspam

AgentTesla

exe 16043cbb08a362ab425145ded9447bcc382c2b9c9eb3b570704edabbe4276fea

(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 (HIGH_ENTROPY_VA)	high

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