MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e. 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: 15


Intelligence 15 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e
SHA3-384 hash: cd089b545145c5de50942ca6496250032ed5b2d86108854ace2b47ec9c52fbcd2bc178ef2126e65fdcb0a0d6515f4ed4
SHA1 hash: 271c63e627fcab0bdc4cf33dafd1c4ae443fbf27
MD5 hash: e5b65c6f26e895a2ccc08b2700d48d99
humanhash: harry-lion-floor-violet
File name:PO.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:344'863 bytes
First seen:2023-01-23 09:17:36 UTC
Last seen:2023-01-23 14:39:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:vYa6XJzQ4qb4foaZ4WxPeGj4zb3VzmG02oCs4sM/+n4w+oSKoCXWwbzTTA1:vYtJzebcobWOzZm4k3M24aTDTE
Threatray 20'747 similar samples on MalwareBazaar
TLSH T16E7423416590C4D7FB610B332A7907E71AB7800610E8AA1F8BA49B0F7D7D7D0DE5E7A2
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
PO.exe
Verdict:
Malicious activity
Analysis date:
2023-01-23 09:20:49 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/4969f045-80dd-46e6-9f47-e783cecbbf40

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/355829/
Detection(s):
Porcupine.Trojan.PSW.Win32.Agensla.gen.78582.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Searching for the window
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/62423/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63ce50cc2b351a3d0ea7dbc2/reports/7deb4452-dc9b-4611-bbec-b6bf79689aa8/overview
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/330ae06c-28ae-41f1-b2e0-fcf9835cf448
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1156836
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 789569 Sample: PO.exe Startdate: 23/01/2023 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 5 other signatures 2->59 7 PO.exe 19 2->7         started        10 oxlviyecrfxp.exe 1 2->10         started        13 oxlviyecrfxp.exe 1 2->13         started        process3 file4 35 C:\Users\user\AppData\Local\...\nvrgyswmd.exe, PE32 7->35 dropped 15 nvrgyswmd.exe 1 3 7->15         started        61 Multi AV Scanner detection for dropped file 10->61 19 WerFault.exe 10 10->19         started        21 conhost.exe 10->21         started        23 WerFault.exe 4 10 13->23         started        26 conhost.exe 13->26         started        signatures5 process6 dnsIp7 39 C:\Users\user\AppData\...\oxlviyecrfxp.exe, PE32 15->39 dropped 45 Multi AV Scanner detection for dropped file 15->45 47 Detected unpacking (changes PE section rights) 15->47 49 Detected unpacking (creates a PE file in dynamic memory) 15->49 51 6 other signatures 15->51 28 nvrgyswmd.exe 15 2 15->28         started        33 conhost.exe 15->33         started        41 192.168.2.1 unknown unknown 23->41 file8 signatures9 process10 dnsIp11 43 api.telegram.org 149.154.167.220, 443, 49707 TELEGRAMRU United Kingdom 28->43 37 C:\Windows\System32\drivers\etc\hosts, ASCII 28->37 dropped 63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 28->63 65 Tries to steal Mail credentials (via file / registry access) 28->65 67 Tries to harvest and steal ftp login credentials 28->67 69 2 other signatures 28->69 file12 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-01-23 01:43:33 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2thueuhlghtw4zdixsape5umilhuqfuwcnf6v7bbooozq6rwvjpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0c62abe574a6b360a940fc43ecae0993eb52715bac6208ea56e2de5e1bc5892b
AgentTesla
1e74522fdc60c68fff2c1909f2a2b9d261adeefc111828bd85a554e58ea2021d
AgentTesla
2d0170ed65c137d3595e108eb6a5613132c11f9d35a4af02d1e5ae0258204913
AgentTesla
43222f2fb7108be63e131f8497abe062e10f8e85905aa8a6446a81b3de71b49f
AgentTesla
4cfd7289e7f8d77c8da07f74d93dda3767bde8d9a8e251df7a83df9615a6c701
AgentTesla
b5bd13a0c79196b4ce670af7dff5fa8e5b74aef16ee800dbb4f2f6fe461e113b
AgentTesla
d24842b404e95766700c3f37cc0e6266beebd1533082ec7d4443ee61637a2002
AgentTesla
+ 20'737 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230123-k9lsgacf73/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
Executes dropped EXE
AgentTesla payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/sendDocument
Unpacked files
SH256 hash:
b82bf2a1441b358f41bc0355148edb826c742399cc049ffe610a8303ec365e1d
MD5 hash:
9275b7d730adcf45f9089672354f17a9
SHA1 hash:
df35d4ded0322c1436ed97086a519fac7e4786d6
Link:
https://www.unpac.me/results/f5a6caf8-366e-44ff-906c-f0004f7eccde/
SH256 hash:
d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e
MD5 hash:
e5b65c6f26e895a2ccc08b2700d48d99
SHA1 hash:
271c63e627fcab0bdc4cf33dafd1c4ae443fbf27
Link:
https://www.unpac.me/results/f5a6caf8-366e-44ff-906c-f0004f7eccde/
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/d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_d3ac2b2f
Create hunting rule
Author:Elastic Security
Rule name:win_agent_tesla_ab4444e9
Create hunting rule
Author:Johannes Bader
Description:detects Agent Tesla
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

Executable exe d4cf4250eb31e76e6468bc80f2768c42cf481696134beafc21739d987a36aa5e

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/355829/

Comments