MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9. 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 14 File information Comments
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SHA256 hash: b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9
SHA3-384 hash: d5b89ae24f6778b629b8c5061ba6ba3bc50c4a915438baed04c245baea59988ab88aadfc7032c371c187d1e91c4a3b27
SHA1 hash: ff24aed1f279280f30d5a7e42f4bbd3d80b87532
MD5 hash: 3f8270932eaa4c87e375914a77b3bf19
humanhash: ack-cola-six-video
File name:SecuriteInfo.com.Win32.PWSX-gen.21599.30229
Download: download sample
Signature AgentTesla
Create hunting rule
File size:763'392 bytes
First seen:2023-11-13 12:42:02 UTC
Last seen:2023-11-13 13:18:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:yWOTNXc3ydunBAFnSoWcHvZjhJOApNQpkxK4ab0KtO6btISeyyNJMIxIt5+:N3guBqSKhhJXLnxK4fAbY/xE
TLSH T10EF4011416E81A0AE6BE0BFDE071504493B5B122752BF36D4AE470FE1EB77908D22B77
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 54b2f0d4ccccf010 (6 x Formbook, 4 x AgentTesla, 3 x SnakeKeylogger)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
330
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Win32.PWSX-gen.21599.30229
Verdict:
Malicious activity
Analysis date:
2023-11-13 12:43:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/180b418d-8453-43b5-96f1-bbcc0376d130

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/458339/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.21599.30229.UNOFFICIAL
Create hunting rule

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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Query of malicious DNS domain
Sending a TCP request to an infection source
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin packed remote
Link:
https://www.filescan.io/uploads/655219db0adeb0343355c231/reports/c3156710-72d5-486d-9269-6bf65a949895/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9
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/44f13b44-4b60-4611-9606-39f41d07a46e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1341688
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1341688 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 13/11/2023 Architecture: WINDOWS Score: 100 59 mail.gcsho.com 2->59 61 api4.ipify.org 2->61 63 api.ipify.org 2->63 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus / Scanner detection for submitted sample 2->73 75 9 other signatures 2->75 8 SecuriteInfo.com.Win32.PWSX-gen.21599.30229.exe 7 2->8         started        12 tdETwaGrvN.exe 5 2->12         started        14 CoUku.exe 2->14         started        16 CoUku.exe 2->16         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\tdETwaGrvN.exe, PE32 8->55 dropped 57 C:\Users\user\AppData\Local\...\tmp4007.tmp, XML 8->57 dropped 85 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 8->87 89 Adds a directory exclusion to Windows Defender 8->89 18 SecuriteInfo.com.Win32.PWSX-gen.21599.30229.exe 16 5 8->18         started        23 powershell.exe 22 8->23         started        33 2 other processes 8->33 91 Antivirus detection for dropped file 12->91 93 Multi AV Scanner detection for dropped file 12->93 95 Machine Learning detection for dropped file 12->95 25 tdETwaGrvN.exe 12->25         started        35 4 other processes 12->35 27 CoUku.exe 14->27         started        29 schtasks.exe 14->29         started        31 CoUku.exe 16->31         started        37 2 other processes 16->37 signatures6 process7 dnsIp8 65 mail.gcsho.com 144.76.195.231, 49730, 49732, 49738 HETZNER-ASDE Germany 18->65 67 api4.ipify.org 173.231.16.77, 443, 49729, 49731 WEBNXUS United States 18->67 51 C:\Users\user\AppData\Roaming\...\CoUku.exe, PE32 18->51 dropped 53 C:\Users\user\...\CoUku.exe:Zone.Identifier, ASCII 18->53 dropped 77 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->77 79 Tries to steal Mail credentials (via file / registry access) 18->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->81 39 conhost.exe 23->39         started        41 conhost.exe 29->41         started        83 Tries to harvest and steal browser information (history, passwords, etc) 31->83 43 conhost.exe 33->43         started        45 conhost.exe 33->45         started        47 conhost.exe 35->47         started        49 conhost.exe 37->49         started        file9 signatures10 process11
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-11-13 09:43:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wu47d5yvmai652lynccyiospuwrtfhh27mala5bexu7k2ngy2hmq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231113-pxdnjsda93/
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
Looks up external IP address via web service
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/8a3e93a0-5acb-4422-89c0-91255734f957/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/8a3e93a0-5acb-4422-89c0-91255734f957/
SH256 hash:
b99bf6f4027b2b382ad56ec4f238268a42501196b448fa74effc34eb0072405c
MD5 hash:
a67991e1801b23f415ab024e53a546db
SHA1 hash:
98e78441947c374c421c7e2087e6ff74e1860591
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/8a3e93a0-5acb-4422-89c0-91255734f957/
Parent samples :
56201f646915a1f24dbb151b653b770290ca145e163999bc39a874bb174ec33b
133f62f51bdf46af75a3b9936457b473d8ec6b6d7b9df45851e5f06cf85c83da
466465672c119069b4414ad9a4bdf57ba08ad96851896e59562f32aa4b741d4d
086aa77498216f0c38c4318eb624819e6f79bc02194c4f90858da208b1572160
a91d29734ec4f9d8738c14872805f7e3d16898f45988a8502813988ab5c80bd0
b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9
SH256 hash:
9b5cb8767ed298e570fe183ded2d4ea5aebf549c057c807c9161e9dfc16cfb92
MD5 hash:
905cde86610ccba853eec6574b526e66
SHA1 hash:
472e4ed27d08b69d35d16bdad7ca1df6bdca099a
Link:
https://www.unpac.me/results/8a3e93a0-5acb-4422-89c0-91255734f957/
SH256 hash:
b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9
MD5 hash:
3f8270932eaa4c87e375914a77b3bf19
SHA1 hash:
ff24aed1f279280f30d5a7e42f4bbd3d80b87532
Link:
https://www.unpac.me/results/8a3e93a0-5acb-4422-89c0-91255734f957/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b539f1f71560/report/overview.html
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/b539f1f7156011eee9786885843a4fa5a3329cfafb00b07424bd3ead34d8d1d9

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: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

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/458339/

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