MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6
SHA3-384 hash: a3a51f95d03aa8ebd4a86b7017a4bfd14ef291d4b73b77b27504f572f4468105679a503515e3676e7dd73aba2690501e
SHA1 hash: d8fdadcc9eaabdf20c5dc799a7363bee684a2807
MD5 hash: d59c796cb954ee3199fcfcd77d2490b3
humanhash: thirteen-lamp-red-magnesium
File name:drafted_custom form.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:758'288 bytes
First seen:2023-10-02 08:29:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:1RtQcogYpS7Q+CAe+FmZfx3cOgoilmI4QlmIwDO4iBBAw/iP5juKtGHNz:RQcoeM+CAKxsoGmI4SmIwhiLAw/UNwz
Threatray 5'965 similar samples on MalwareBazaar
TLSH T1AFF414346FAA115AE02B6F73A2400B7D7EA8B9B37AE9F1DA3A466311F170D41D771013
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon f0e8d4ccccd4e8f8 (1 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
drafted_custom form.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-02 09:55:05 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/55b3e7ce-2e7a-4e93-8b99-23a63f078d02

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/452578/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2415.1056.19425.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
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
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated overlay packed
Link:
https://www.filescan.io/uploads/651a7f8d83a0c6425d04b03d/reports/d708a0b0-a590-4fd3-96f7-e7a34f8d0dd5/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6
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/70005df3-d175-4fda-987c-eefa297ebc00
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1317793
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
May check the online IP address of the machine
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)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 an obfuscated file name to hide its real file extension (double extension)
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 signatures2 2 Behavior Graph ID: 1317793 Sample: drafted_custom_form.pdf.exe Startdate: 02/10/2023 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 11 other signatures 2->56 7 drafted_custom_form.pdf.exe 6 2->7         started        11 SEdCXpjAQn.exe 5 2->11         started        13 vlflvDv.exe 2->13         started        15 vlflvDv.exe 2->15         started        process3 file4 38 C:\Users\user\AppData\...\SEdCXpjAQn.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpC840.tmp, XML 7->40 dropped 70 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 7->72 74 Writes to foreign memory regions 7->74 17 RegSvcs.exe 17 4 7->17         started        22 schtasks.exe 1 7->22         started        76 Multi AV Scanner detection for dropped file 11->76 78 Machine Learning detection for dropped file 11->78 80 Injects a PE file into a foreign processes 11->80 24 RegSvcs.exe 3 11->24         started        26 schtasks.exe 1 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 process6 dnsIp7 42 mail.unitechautomations.com 192.185.129.60, 49800, 49802, 587 UNIFIEDLAYER-AS-1US United States 17->42 44 api4.ipify.org 64.185.227.156, 443, 49799, 49801 WEBNXUS United States 17->44 48 2 other IPs or domains 17->48 36 C:\Users\user\AppData\Roaming\...\vlflvDv.exe, PE32 17->36 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->60 62 May check the online IP address of the machine 17->62 32 conhost.exe 22->32         started        46 api.ipify.org 24->46 64 Tries to steal Mail credentials (via file / registry access) 24->64 66 Tries to harvest and steal browser information (history, passwords, etc) 24->66 68 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->68 34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-10-02 08:29:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
17 of 23 (73.91%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=io4b2dfcg47j7b2gabn76a2wizlloeodudm6qgtdf5yduqqodtla._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1934c9d93e6a4198e68757441c611e6c31306b38aeec33a5f1f6c09f1f8ce466
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480c296502a2e2c8cc03eb4a2bb61e25885e3a83b104399d279d6f6e0f0d44c9
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8f59e0372fb55c7267a21c6a694e643ebdf1629f55f4815d7fc476492d5c7f08
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ac9a2aedb6a7a14dfa233489e17f6efc4ddd9cd6c12c46a10fa193fc578430f0
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b57506921f2720895173741a012333b7f8b981a58dfa16493088371371b815c3
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e3bb4be5d6f18e8fbec6ea1a30572f9bf6bff8764fe54e0285b5ffee096683a5
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e451ae19f163ea57cff01b042d69e4e939a1854adc94dff0f40dfbad06c2b19b
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e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9
AgentTesla
+ 5'955 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/231002-kd5wgaab35/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
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
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
0b4c93addb0071e4cc368bc5e46a535e2eafd360b5db8b6c87620d7225eade2d
MD5 hash:
e17d9bb18c1bf12de8c75fa570f4cf72
SHA1 hash:
97751a31524557387d136e0e42e204186d00b5dd
Link:
https://www.unpac.me/results/4e6231c5-8fb6-496e-a144-7698e4d4a6db/
SH256 hash:
fc2a512233bc2f0d30725f10f7ce46a5acf67971692ca61d8b4c2c3ed6a69fec
MD5 hash:
50cc30f54e48f35e01d634331a2b24f2
SHA1 hash:
464a467739475e1163fd485e565356dfd7dcf88b
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/4e6231c5-8fb6-496e-a144-7698e4d4a6db/
Parent samples :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 hash:
d78fe6754c766acb03938314bf47011405af4a961eafebb955b531cde3bcfc8a
MD5 hash:
001bc737668aebb1458cea4ba90910b0
SHA1 hash:
0b607ec5ea004349a9b231161b76c1f5ad94a8f0
Link:
https://www.unpac.me/results/4e6231c5-8fb6-496e-a144-7698e4d4a6db/
SH256 hash:
43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6
MD5 hash:
d59c796cb954ee3199fcfcd77d2490b3
SHA1 hash:
d8fdadcc9eaabdf20c5dc799a7363bee684a2807
Link:
https://www.unpac.me/results/4e6231c5-8fb6-496e-a144-7698e4d4a6db/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/43b81d0ca237/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_bytecodes_sep_2023
Create hunting rule
Author:Matthew @embee_research

File information

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

AgentTesla

7z bd8a3a7c877c8f012a7e9cb85e2f98bf8d6aade2c7f9589bfaef2abb2b71fbf3

AgentTesla

Executable exe 43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 bd8a3a7c877c8f012a7e9cb85e2f98bf8d6aade2c7f9589bfaef2abb2b71fbf3
  
URLhaus
https://urlhaus.abuse.ch/url/2715654/
Cape
Cape
https://www.capesandbox.com/analysis/452578/
  
Dropped by
MD5 df828836aea373f445001eddac3a9d11

Comments