MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e
SHA3-384 hash: 64a4b196eea16d6ff7b3b16d558731cd9cd2dafcdd5569a0c6c5d033270d781858a08f3b53c228ebe6e11f0a3a046719
SHA1 hash: dbaec6238601594808b834bc41c97f42ec0821e2
MD5 hash: eb6d0bb53153aed4a9ed7facd2711deb
humanhash: hamper-angel-idaho-bakerloo
File name:Tender notification_22.11.20.21.doc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:782'336 bytes
First seen:2021-11-22 07:40:58 UTC
Last seen:2021-11-22 09:59:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:I8OF+HRZjhOyYVyCg18rHCUIJ00/vwvil/5peCooO7d2wQ:nozgicJ0gvsilxrU7d2
TLSH T1A9F47C3032957396CC765BB40C2461C5273776493D08DB6DACC922DEAD62F2B8B237A7
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Tender notification_22.11.20.21.doc.exe
Verdict:
Malicious activity
Analysis date:
2021-11-22 07:46:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8934351d-6f75-4a60-bf10-c509bb1732a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.25422.14880.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619b4990398e2553d20088b6/reports/66de6188-53ff-45db-8672-987ec4e21369/overview
Result
Verdict:
UNKNOWN
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/168fb3b1-c9b0-4945-b72d-a10d77080a32
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/893622
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 ftp login credentials
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 526096 Sample: Tender notification_22.11.2... Startdate: 22/11/2021 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected AgentTesla 2->41 43 9 other signatures 2->43 7 Tender notification_22.11.20.21.doc.exe 7 2->7         started        process3 file4 27 C:\Users\user\AppData\...\rQJBrTvhZWlJd.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp1082.tmp, XML 7->29 dropped 31 Tender notificatio...1.20.21.doc.exe.log, ASCII 7->31 dropped 45 Writes to foreign memory regions 7->45 47 Allocates memory in foreign processes 7->47 49 Adds a directory exclusion to Windows Defender 7->49 51 Injects a PE file into a foreign processes 7->51 11 RegSvcs.exe 7->11         started        15 RegSvcs.exe 7->15         started        17 powershell.exe 24 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 33 smtp.yandex.ru 77.88.21.158, 49843, 587 YANDEXRU Russian Federation 11->33 35 smtp.yandex.com 11->35 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->53 55 Tries to steal Mail credentials (via file / registry access) 11->55 57 Tries to harvest and steal ftp login credentials 11->57 59 Tries to harvest and steal browser information (history, passwords, etc) 11->59 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->63 21 conhost.exe 17->21         started        23 conhost.exe 19->23         started        25 conhost.exe 19->25         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-22 01:56:23 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gwsvinh56dewzprxw4vla3sjqznynx2pqjrwnk73fdub26bnhrpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211122-jh493aaac2/
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
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
86462943c31f9ccb375ee0ee9134cfd7faba4eec5f9fa3ea78a17ff6b2687313
MD5 hash:
6a649b30819375325bd97fcae8c7a2ec
SHA1 hash:
f150f4cbfee8f34cdb435da3200b3344b213427d
Link:
https://www.unpac.me/results/c39585cf-befd-4e43-b374-a5d7d45a14bd/
SH256 hash:
b688ff1e56e6f78a82a80ed497c52d25eb833797d0a9bd604e76f73e36481a5d
MD5 hash:
873511dade94e448d826fa40c6772709
SHA1 hash:
7133217d69d18dfaa95ab7b41eeae550528ae5d2
Link:
https://www.unpac.me/results/c39585cf-befd-4e43-b374-a5d7d45a14bd/
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/c39585cf-befd-4e43-b374-a5d7d45a14bd/
SH256 hash:
35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e
MD5 hash:
eb6d0bb53153aed4a9ed7facd2711deb
SHA1 hash:
dbaec6238601594808b834bc41c97f42ec0821e2
Link:
https://www.unpac.me/results/c39585cf-befd-4e43-b374-a5d7d45a14bd/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/35a55434fdf0/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/35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e

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:pe_imphash
Create hunting rule
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

Executable exe 35a55434fdf0c96cbe37b72ab06e49865b86df4f826366abfb28e81d782d3c5e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/208030/

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