MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
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SHA256 hash: b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
SHA3-384 hash: bf4005e26a018a54bf995bb1fc0222804e5d6ee4ce30a0ffa751182d3d54bcc7b95103426bdd7beaf604d421d17d7f32
SHA1 hash: e4186c47dc4a7b830a82df080a852f67ba5c68ac
MD5 hash: 2fe8a13e94c543b1f0085bc34d2670e4
humanhash: winter-floor-paris-golf
File name:b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
Download: download sample
Signature AgentTesla
Create hunting rule
File size:74'752 bytes
First seen:2025-06-10 09:41:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:+40AwBGYcCmffHv9OVFvjxUCUtrtB3W1Vinuaf25oIeCW:tQGEmfvI7rxUCUpT3W1VAuauNet
Threatray 3'677 similar samples on MalwareBazaar
TLSH T18873D71EF7E95794F2F38B7CA8A6B1088C3E7C9D9501C6982810214D09B2B59BDD6F37
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:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
399
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
Verdict:
No threats detected
Analysis date:
2025-06-10 14:42:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/79102159-508c-4f21-921d-76b36bf753cd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/8570/
Detection(s):
SecuriteInfo.com.Trojan.Mardom.MN.11.568.12810.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6847fdce8bd5d68a12e763b6
Tags:
obfuscate autorun xtreme virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Labled as:
Trojan.Mardom.MN.Generic
Link:
https://www.hybrid-analysis.com/sample/b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f040320b-e7c1-4218-9a9e-601af79a6ca2
Result
Threat name:
AgentTesla, ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1711404
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Drops VBS files to the startup folder
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Sigma detected: Drops script at startup location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: WScript or CScript Dropper
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 threadpools to delay analysis
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected ResolverRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1711404 Sample: Q5jiYsFb5s.exe Startdate: 10/06/2025 Architecture: WINDOWS Score: 100 42 mail.iaa-airferight.com 2->42 44 files.catbox.moe 2->44 46 api.ipify.org 2->46 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 10 other signatures 2->72 8 Q5jiYsFb5s.exe 15 6 2->8         started        13 wscript.exe 1 2->13         started        15 svchost.exe 2->15         started        signatures3 process4 dnsIp5 48 files.catbox.moe 108.181.20.35, 443, 49683, 49691 ASN852CA Canada 8->48 32 C:\Users\user\AppData\Roaming\quad.exe, PE32 8->32 dropped 34 C:\Users\user\...\quad.exe:Zone.Identifier, ASCII 8->34 dropped 36 C:\Users\user\AppData\Roaming\...\quad.vbs, ASCII 8->36 dropped 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->74 76 Drops VBS files to the startup folder 8->76 78 Encrypted powershell cmdline option found 8->78 82 3 other signatures 8->82 17 Q5jiYsFb5s.exe 2 8->17         started        21 powershell.exe 23 8->21         started        80 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->80 23 quad.exe 14 2 13->23         started        50 127.0.0.1 unknown unknown 15->50 file6 signatures7 process8 dnsIp9 38 api.ipify.org 104.26.12.205, 443, 49689, 49697 CLOUDFLARENETUS United States 17->38 40 mail.iaa-airferight.com 46.175.148.58, 25 ASLAGIDKOM-NETUA Ukraine 17->40 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->52 54 Tries to steal Mail credentials (via file / registry access) 17->54 56 Installs a global keyboard hook 17->56 58 Loading BitLocker PowerShell Module 21->58 25 WmiPrvSE.exe 21->25         started        27 conhost.exe 21->27         started        60 Multi AV Scanner detection for dropped file 23->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->62 64 Uses threadpools to delay analysis 23->64 29 quad.exe 23->29         started        signatures10 process11 signatures12 84 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->84 86 Tries to steal Mail credentials (via file / registry access) 29->86 88 Tries to harvest and steal ftp login credentials 29->88 90 2 other signatures 29->90
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d/
Threat name:
ByteCode-MSIL.Trojan.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 02:15:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wt23xklo2s2kv2aoe7yyvcuw57eom7khrbxnfdcc3rb4lt2gzegq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
84da01f822e04b30e35df2723c617b7763b3ec06427520a6ffbdca3a71f060c7
AgentTesla
8eefd4c22b784988de8fbe5c971738915b98f9c1efbd51731a56219e99bed0da
AgentTesla
98f48787c509487f71e7fe1af189d4b2715f3d16cb7609a67ca87c290fcfb617
AgentTesla
b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
AgentTesla
e4eccfbdbb3828e99d1218f4a91d0cda1c0a9329dac7f9aea5262d022efc00aa
AgentTesla
edd10d1566526117193cd944923258bd1371d9f648d806fe73dcd4e0afc0a9d1
AgentTesla
error
AgentTesla
+ 3'667 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250610-lnzb4ssyht/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Drops startup file
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
Agenttesla family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/09199ae6-fb86-459a-85bc-8f17eaab63ed
Unpacked files
SH256 hash:
b4f5bba96ed4b4aae80e27f18a8a96efc8e67d47886ed28c42dc43c5cf46c90d
MD5 hash:
2fe8a13e94c543b1f0085bc34d2670e4
SHA1 hash:
e4186c47dc4a7b830a82df080a852f67ba5c68ac
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/ffbebbca-bde1-4f13-acd5-d0519669eeb6/
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: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)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/8570/

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments