MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1
SHA3-384 hash: f3a0790d5c7fe1e92b68406f5b07f0a8f00b3d005fe8cafbe1d313b7949ca86ac3bdc93065a367c1a65bb1f08e8a9158
SHA1 hash: f8048f625beecd0e2f2f376f3ef0021cbf508580
MD5 hash: 54804a276cb803d1755b1c728af5371e
humanhash: hawaii-stairway-mango-arizona
File name:CnWjNVxtfCoWhTe.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:723'456 bytes
First seen:2024-02-21 09:09:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:2xpFkU1+0DW58Pr1HvQG8xEHdnIF1M4f7rgcg5pw3DbdRS0R0MuC2iN:opFVILGPrFvmxWv4fgjw3JOMuC1
TLSH T1F3F423C2B7FD8A25D47BF3F929E0658107B6185FC773E29D1E8892EB5020B51A160F83
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) (4504/4/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1.exe
Verdict:
Malicious activity
Analysis date:
2024-02-21 09:15:32 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/610f5bc9-cbdc-4f7e-b609-233ca8214166

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/477239/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d5bdee510063cea177430e/reports/139e0b47-1415-4789-b90d-0dd5a406d3c7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1
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/93b0b3f6-1187-47d2-8e24-f7178318b3aa
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1395967
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1395967 Sample: CnWjNVxtfCoWhTe.exe Startdate: 21/02/2024 Architecture: WINDOWS Score: 100 44 mail.wasstech.com 2->44 46 api.ipify.org 2->46 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 11 other signatures 2->58 8 CnWjNVxtfCoWhTe.exe 7 2->8         started        12 QUKkfGwFzUQSB.exe 5 2->12         started        signatures3 process4 file5 40 C:\Users\user\AppData\...\QUKkfGwFzUQSB.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpB73C.tmp, XML 8->42 dropped 60 Uses schtasks.exe or at.exe to add and modify task schedules 8->60 62 Writes to foreign memory regions 8->62 64 Allocates memory in foreign processes 8->64 66 Adds a directory exclusion to Windows Defender 8->66 14 RegSvcs.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 22 8->20         started        22 schtasks.exe 1 8->22         started        68 Multi AV Scanner detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        28 RegSvcs.exe 12->28         started        signatures6 process7 dnsIp8 48 mail.wasstech.com 204.93.196.181, 49709, 49713, 587 SERVERCENTRALUS United States 14->48 50 api.ipify.org 104.26.13.205, 443, 49708, 49712 CLOUDFLARENETUS United States 14->50 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->74 76 Tries to steal Mail credentials (via file / registry access) 14->76 30 WmiPrvSE.exe 18->30         started        32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        78 Tries to harvest and steal browser information (history, passwords, etc) 24->78 38 conhost.exe 26->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-02-21 08:52:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eoycu2lrszas3rzldeoshgsv26i2qgpiv2ukd3ldn4vidawigtiq._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 spyware stealer trojan
Link:
https://tria.ge/reports/240221-k42lqsea68/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1
MD5 hash:
54804a276cb803d1755b1c728af5371e
SHA1 hash:
f8048f625beecd0e2f2f376f3ef0021cbf508580
Link:
https://www.unpac.me/results/76aa39ff-9626-41a5-b15a-fa72716d237f/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23b02a697196/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/23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1

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: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:NET
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 23b02a697196412dc72b191d239a55d791a819e8aea8a1ed636f2a8182c834d1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477239/

Comments