MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c
SHA3-384 hash: 5f0b856f17d71ce7af1d1d56f928b8d2ce16f90aa8b22595a2f8f4401dd752662e34c3e638c8fd98430e7d7332a1b9d8
SHA1 hash: d8bc1d6d2fe7fd9ec01f93e467ed83753cf747fa
MD5 hash: 2144fb726bfc89aaae87e24fd5bc66b1
humanhash: edward-may-sixteen-blue
File name:[Harumi new order].exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:904'192 bytes
First seen:2023-11-13 08:00:11 UTC
Last seen:2023-11-13 09:22:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 24576:Ew/VRoOzxZxBNytr/oIe/zpNAhUTOqofIlhChgdgm:Ew/88xTBNIr/oh+hUT7ofIlohsgm
Threatray 1'339 similar samples on MalwareBazaar
TLSH T1571512123BA8DF26C5AC0B39CAB783000776EC486D23934F4F84769C7DB67946B55BA4
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon d8d8e0e8f8f4ccc6 (5 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
313
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
[Harumi new order].exe
Verdict:
Malicious activity
Analysis date:
2023-11-13 08:03:50 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/51511e4f-bbb9-4569-adfc-46185156a29c

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/458313/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.28887.17355.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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
Reading critical registry keys
DNS request
Stealing user critical data
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:
masquerade packed
Link:
https://www.filescan.io/uploads/6551d7c46f0bce33263809a2/reports/b688a2f2-982d-4432-84e8-0a956e1c2895/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c
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/71e11fca-e578-4e88-93de-b1c1eee64750
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1341579
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1341579 Sample: [Harumi_new_order].exe Startdate: 13/11/2023 Architecture: WINDOWS Score: 100 40 mail.bezzleauto.com 2->40 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 9 other signatures 2->50 8 [Harumi_new_order].exe 7 2->8         started        12 tdjYXYzPOTDCj.exe 5 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\tdjYXYzPOTDCj.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmpDCA5.tmp, XML 8->38 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 8->52 54 Writes to foreign memory regions 8->54 56 Allocates memory in foreign processes 8->56 58 Adds a directory exclusion to Windows Defender 8->58 14 RegSvcs.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        60 Multi AV Scanner detection for dropped file 12->60 62 Machine Learning detection for dropped file 12->62 64 Injects a PE file into a foreign processes 12->64 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 42 mail.bezzleauto.com 45.151.123.240, 25, 49708, 49710 STUMPNERNETDE Germany 14->42 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->68 70 Tries to steal Mail credentials (via file / registry access) 14->70 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        72 Tries to harvest and steal browser information (history, passwords, etc) 24->72 34 conhost.exe 26->34         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2023-11-13 06:26:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=znf7iqvm3tclrrxy56p4uxdngksxygfyg6ap76fkjp4qirby4soa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
Similar samples:
062ac11f6486fd09b8cb2bfae9697db722d2b3ceb0fcd4f92793eb0cb90c4295
AgentTesla
105723d9d7a4cebad5fdd0454435d7ff2776d8084fbc94795c5e9cd863dff0d4
AgentTesla
6799ba146b9ff5bcb092d8d1e3295fcb990a8a3e9e6c4f46bbd1e2d4ec7e8c7d
AgentTesla
f230dd21df49ad4ab75c02bab7e245e6727eaa88d56fe148699831a995749592
AgentTesla
+ 1'329 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231113-jwjkhsbd2z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
667008ebe7f0e3547e57f852b8f27f5c92862abd67184f5c2a8d6f6ba3e50e32
MD5 hash:
2f76d0d098ff4fcd96ddaf6c10b8f3cd
SHA1 hash:
d8f9735bd47030bd1fc6971ae5afb49956b97061
Link:
https://www.unpac.me/results/25c0d4b7-1b5e-4cf2-a67e-38faccbaaa7b/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/25c0d4b7-1b5e-4cf2-a67e-38faccbaaa7b/
SH256 hash:
fced22b9297b650d1de7971e6b8b7cc806540ecd780103c367bdd0e5af3b16fd
MD5 hash:
f66be4a135598aa280be66182272ba8d
SHA1 hash:
c8d48fa8952f12468395e036731b342a7c47a8ad
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/25c0d4b7-1b5e-4cf2-a67e-38faccbaaa7b/
Parent samples :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 hash:
62757af7ce2dcfe188245dd26d85e233c2ded82311c600c7c8ec83c8c8a071b2
MD5 hash:
804cc8416b7db140f03d251ca3abbf00
SHA1 hash:
1a1160f7db639606a1046b555b08a43035aff960
Link:
https://www.unpac.me/results/25c0d4b7-1b5e-4cf2-a67e-38faccbaaa7b/
SH256 hash:
cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c
MD5 hash:
2144fb726bfc89aaae87e24fd5bc66b1
SHA1 hash:
d8bc1d6d2fe7fd9ec01f93e467ed83753cf747fa
Link:
https://www.unpac.me/results/25c0d4b7-1b5e-4cf2-a67e-38faccbaaa7b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cb4bf442acdc/report/overview.html
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: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: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.

Malspam

AgentTesla

7z f7f610af2d143c403a5a4b6765be570090420f373d4ab5f6282530c9d8a32e19

AgentTesla

Executable exe cb4bf442acdcc4b8c6f8ef9fca5c6d32a57c18b83780fff8aa4bf9044438e49c

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 f7f610af2d143c403a5a4b6765be570090420f373d4ab5f6282530c9d8a32e19
Cape
Cape
https://www.capesandbox.com/analysis/458313/
  
Dropped by
MD5 aff848e1b4da6d40c7b558753ebe5fe3

Comments