MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580. 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:	d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580
SHA3-384 hash:	fd422409dce75f74ff86d149c3658f9f675e2dd17f28c38ae93f986e8496e2be3ca945bde6efbc75549c47b8f7427d16
SHA1 hash:	97aee3ae9960890ebb73b4976108ea9f9d441db9
MD5 hash:	47e6993ca2c8e088e5d25469d14f693e
humanhash:	tango-butter-kitten-xray
File name:	TEKLİF İSTEĞİ-52850_xlsx.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	804'352 bytes
First seen:	2025-04-07 07:21:13 UTC
Last seen:	2025-04-07 07:28:52 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:sY9YqBCCwfDruBa3OwYLej/8Plw1laJ5Q0StW/ihgdw8si:GfrXyeMiYe0GAjdw8
Threatray	1'711 similar samples on MalwareBazaar
TLSH	T1F905F064336CDC17D0B643F52921D27403BAAD9D7A21E3C66ED6BDCB38A1F815A007A7
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
dhash icon	0068617171617000 (6 x SnakeKeylogger, 2 x MassLogger, 2 x AgentTesla)
Reporter	threatcat_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

1'773

Origin country :

Vendor Threat Intelligence

Detection:

AgentTesla

Link:

https://www.capesandbox.com/analysis/964/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67f37d22e011fe619fabd80d

Tags:

underscore lien

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Launching a process

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

masquerade obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/67f37d21b070fb3f945fb342/reports/c9b22bdd-c4d1-4a10-9a76-bca042629c8c/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/5c754d77-0b0e-4a56-8b3a-b85bfe9237f3

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1658045

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

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

Joe Sandbox ML detected suspicious sample

Loading BitLocker PowerShell Module

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

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)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

Suricata IDS alerts for network traffic

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)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580/

Threat name:

ByteCode-MSIL.Backdoor.FormBook

Status:

Malicious

First seen:

2025-04-07 07:22:07 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=2kbvrzadkd6zvc2egortcmnx6vt5m3a7tiqlnpjhmf4llbjqiwaa._file

Verdict:

malicious

Label(s):

unc_loader_037

agenttesla

AgentTesla

38d921d063a0fb892086121bb34180b2a930819788a3e34a0d2f65224142d930

AgentTesla

4787e8bcc4ed9c82bfedab74012e4391039898948e3130dbaa008dddf515c86c

AgentTesla

f36bbad2ba5e3b1af3a688cc15591203d70b4830e4f55286e6a8833bf1f23ef4

AgentTesla

+ 1'701 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery execution

Link:

https://tria.ge/reports/250407-h69n1sswcv/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Checks computer location settings

Command and Scripting Interpreter: PowerShell

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/b404656f-be6c-4a37-9cf7-a83ba6feca88

Unpacked files

SH256 hash:

d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580

MD5 hash:

47e6993ca2c8e088e5d25469d14f693e

SHA1 hash:

97aee3ae9960890ebb73b4976108ea9f9d441db9

Link:

https://www.unpac.me/results/77058542-b71e-49a4-9e40-07934d7b7dcd/

SH256 hash:

4c87f22ce2466f1e1447d80155a69833eff54dad60df6f292484976e2c2f805b

MD5 hash:

1f92cd38cabcac55f53583ff74d369ff

SHA1 hash:

2275f5b0aec3f7d17854906bb5a7f00451d1d31f

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/77058542-b71e-49a4-9e40-07934d7b7dcd/

Parent samples :

69f684f1e3a4c73362a0e9d775ec1717be3e730bee70a096b578775c0df39ddf
4347740628dde81f0d24411f390e00f168155026dae9bc80e2e6837e381860a0
f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
3ab9c6d950c228d286795fd61b70a4bd7c1c3de889ccac47dc68d5f23a24408e
8c3a0f760deceeb69b81b809d2a16cb2ff5979f4b332fc4243eed61fb2111e17
3543cb3f9359037b6f177ab44ef175f17017381b33759d9709b46268f248012a
d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580
e36801a3e24d697a55c6b00e156a88d1a27d81b83ab4c50f1ec6e6ca7d455d31
e28ab1b33d7446770039a494f9642261f70e85d95439f22bc61e6267c21b53c9
74a3ca19e62c2633b41517a640acf4e1e9d8588c9c7829fef8dc2602fd242e8d

SH256 hash:

7b49a7cef89a7f91b279d526d91317003d7f1205e251201ebc1a18a8753840a6

MD5 hash:

dbda799eb339092be0625bab846ce7a5

SHA1 hash:

9ae9778f584de5d7a3ddb70e696fed6c36e639f5

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/77058542-b71e-49a4-9e40-07934d7b7dcd/

SH256 hash:

92381068ba0659eb245a1ee75d35ade385d9d1c866258482fec1ecf833b0bc38

MD5 hash:

a56552a23b0e99456abff9764ab0a3cd

SHA1 hash:

b1a91454c99cbf6201bd55e09cb946da60e67402

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/77058542-b71e-49a4-9e40-07934d7b7dcd/

Parent samples :

d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580
2a42400af1f416ee97e512e419076b7769e4dca5a9f2f8cdca717391fa43b9ed
fc523562bc368e6ab9c0106a1f3d6e23c4104f120c65c65b9c9adb2ee57c63ca
72be9fedc41813b76d9a0707925542a7919f9192ca9cdc8ef82b952dce22da4f
1ebc38bc1bd49c8564e94d2242c4deed0bd0d69c0086ab7cc2dc180c77a989ce
b259302d7ea5bfb1f2ad8f50e8de4df48d96021070ee77c5b7819583ec43f372
aeeefebd58a16e9b1c8863728c208e878cdc6095026c6f99e058ebe79c1faa8c
e3490b8097e4e9336d360f9998cc904fc90af46470232c631f3071425bb869e5
9d57211cd89f172b2a56a41e2906df2baff93edf0bf17763769150483b720fe7
bda5884e1a65b59d74d3366608a4841111d43d0b6a865879736f5179bac1bcf3
f2414faf44fac2135ccce1d5fe5c3a53ec3fcde7ad295e2e112af373b02da086
b9ee87f239e3ee4599d666b1b755f97ab4c2ab45507654ec1485f9d60af710ca
7a0c686bf5d3ce673c31b764775f0e0cedd2e7804b29f5145c092479ca8a5fd2

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/d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580

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:	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_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.

Malspam

AgentTesla

exe d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/964/

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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