MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764
SHA3-384 hash: dbb6573e894a2fdc0f4d0150dcf31c71007767e77909b48cf0c2273764a832cef4f884ec7096e9f33e171e8cf5c1ac4b
SHA1 hash: 9415e8affeae395c04046a9189414b4787291f14
MD5 hash: 44b581457172335dd3903c5bf659a035
humanhash: wisconsin-timing-magnesium-fix
File name:CREDIT NOTE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:847'360 bytes
First seen:2024-04-24 04:13:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:T9CF9WMGkyCehy9LdriuW3hny6SNZX2/paka16cMRTjfxwNGNUt842vB8x8xqirq:ZC2MreQLMrF/pa1yRTbNey42vudgZM
Threatray 686 similar samples on MalwareBazaar
TLSH T1DF05F1B079210892E53FCBFDC42256454AF4A04F7123F5EFB1E875342C59A899A4BA3F
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)
File icon (PE):PE icon
dhash icon f0dcb8e0a08ef070 (5 x AgentTesla, 1 x MassLogger)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
420
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 05:52:41 UTC
Tags:
stealer agenttesla exfiltration
Link:
https://app.any.run/tasks/db146a91-089c-40b7-a6ba-065453313718

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6628870ac5dabc22b206ce32/reports/2735caca-f3b3-47ed-a878-084f332e25b1/overview
Verdict:
Malicious
Labled as:
Strictor.Generic
Link:
https://www.hybrid-analysis.com/sample/8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/714c9307-9173-4dcf-8ec5-b3dabb653204
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1430734
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1430734 Sample: CREDIT NOTE.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 100 53 mail.unitechautomations.com 2->53 57 Snort IDS alert for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 10 other signatures 2->63 8 CREDIT NOTE.exe 7 2->8         started        12 itqsdfDZLZo.exe 5 2->12         started        14 GUIVTme.exe 2->14         started        16 GUIVTme.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\itqsdfDZLZo.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmpDA04.tmp, XML 8->51 dropped 79 Writes to foreign memory regions 8->79 81 Allocates memory in foreign processes 8->81 83 Adds a directory exclusion to Windows Defender 8->83 18 RegSvcs.exe 1 4 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        85 Multi AV Scanner detection for dropped file 12->85 87 Machine Learning detection for dropped file 12->87 89 Injects a PE file into a foreign processes 12->89 29 RegSvcs.exe 12->29         started        31 schtasks.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 55 mail.unitechautomations.com 192.185.129.60, 49735, 49740, 587 UNIFIEDLAYER-AS-1US United States 18->55 47 C:\Users\user\AppData\Roaming\...behaviorgraphUIVTme.exe, PE32 18->47 dropped 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->67 69 Loading BitLocker PowerShell Module 23->69 37 conhost.exe 23->37         started        39 WmiPrvSE.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->71 73 Tries to steal Mail credentials (via file / registry access) 29->73 75 Tries to harvest and steal ftp login credentials 29->75 77 Tries to harvest and steal browser information (history, passwords, etc) 29->77 45 conhost.exe 31->45         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-23 12:14:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
20 of 23 (86.96%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rmytg2lo6htwbglu7aee63fjo6vxjw34nch2pog7qozosiy7c5sa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
2cba66d97b8af051072417ad7267c9f56f8f74eca98a5e5bf5d7ddc894249ad8
AgentTesla
6c06c665c435cf95787310f59e984006711d50bf091ae610cb4440abae1448c4
AgentTesla
b06755606adaa10b7b75bc045bbaa13dcfbcd6c79a4b85f4914abbd92fbf8b21
AgentTesla
d3b6e366a802b7cd639108f9d4b36588736bcc77a32ee9796ad42ec294af2e46
AgentTesla
dd582857ac395bba073187d17dcce2d51e8ff315b844c1a06a773323312b7771
AgentTesla
+ 676 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240424-etm3pseg69/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
60d39ee6c5c6c61b512ff44984c73d7cf14e54c826fda3a690eb25759d2c0442
MD5 hash:
c34123cd2e4862b3303be6ae4192bc05
SHA1 hash:
c42bae8a09696b5d495935bbf323149a31633791
Link:
https://www.unpac.me/results/80f62d7f-385d-410d-a9c0-e6f10d3ccb2d/
SH256 hash:
1b992facd0057288dab5c02d1604898741db3a15d27040ba4085126c91afeea2
MD5 hash:
ef262d4cc4de4609996faa5c34f6a8fe
SHA1 hash:
bd48bc0af0d66a72017a245a9dbed51919f44ee3
Link:
https://www.unpac.me/results/80f62d7f-385d-410d-a9c0-e6f10d3ccb2d/
SH256 hash:
abdf032878b2df29c596f3b475dc6cc53e8498a49465222af5e41597f8ebab3e
MD5 hash:
7f060658be78de02c6359c6ad55c0913
SHA1 hash:
8a549c8e633b7d2dbf487970892edbc0c76600d8
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/80f62d7f-385d-410d-a9c0-e6f10d3ccb2d/
Parent samples :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 hash:
0b8ce50168530bf0cb343b44f73db26252353b48843ad163b5c4d40f750b57d0
MD5 hash:
c1ec0dcd8de33cb2d41c7473e00a291a
SHA1 hash:
6c85c33563b9d3f4731b73ec9109b0832096739c
Link:
https://www.unpac.me/results/80f62d7f-385d-410d-a9c0-e6f10d3ccb2d/
SH256 hash:
8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764
MD5 hash:
44b581457172335dd3903c5bf659a035
SHA1 hash:
9415e8affeae395c04046a9189414b4787291f14
Link:
https://www.unpac.me/results/80f62d7f-385d-410d-a9c0-e6f10d3ccb2d/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8b3133696ef1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764

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_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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_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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
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

Executable exe 8b3133696ef1e7609974f8084f6ca977ab74db7c688fa7b8df83b2e9231f1764

(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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments