MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21c97688730d666e13f8b52aeec94371b7996cef7afcd2dd80d0ea1b76b5f3ec. 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: 10


Intelligence 10 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21c97688730d666e13f8b52aeec94371b7996cef7afcd2dd80d0ea1b76b5f3ec
SHA3-384 hash: c3337341a452772b64bf0dfb24526c16afe7ba8f05f694697428aa5c17c191bb501b8e04c2d8790c304596f4a7f09193
SHA1 hash: b0006b19f6ce6e6733cbb924a20e73e3e96c8c2c
MD5 hash: b8b51a0fa309292e603af2370756d44e
humanhash: hydrogen-idaho-ceiling-louisiana
File name:Примітка щодо.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'043'968 bytes
First seen:2021-12-20 16:01:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:7mfeyG1VUlEctpGYZTlgA+JKw6ku/CmWmsF:py4VUFtEShAKdku/CMs
Threatray 621 similar samples on MalwareBazaar
TLSH T157259B2443AC0EEBE1BBC97464A703BF5A2A6C56D630F7C9547A708DF2DF6C045213A6
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/215506/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a process from a recently created file
Creating a file in the Windows subdirectories
Launching a service
Creating a window
Sending a custom TCP request
Changing a file
Searching for the window
Creating a file
Sending an HTTP GET request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a single autorun event
Blocking the User Account Control
Forced shutdown of a system process
Adding exclusions to Windows Defender
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/61c0a8fdec6c6c14a9e55bae/reports/0a154d70-78b4-458b-ae9c-7b1fc781beea/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/3af18ca4-4ee9-4b46-a20c-1b29c77c3030
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/910396
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Contains functionality to hide user accounts
Creates an autostart registry key pointing to binary in C:\Windows
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 542873 Sample: #U041f#U0440#U0438#U043c#U0... Startdate: 20/12/2021 Architecture: WINDOWS Score: 100 59 192.168.2.1 unknown unknown 2->59 61 Multi AV Scanner detection for dropped file 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 Detected unpacking (creates a PE file in dynamic memory) 2->65 67 10 other signatures 2->67 8 #U041f#U0440#U0438#U043c#U0456#U0442#U043a#U0430 #U0449#U043e#U0434#U043e.exe 6 11 2->8         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 2 other processes 2->16 signatures3 process4 dnsIp5 41 C:\Windows\Cursors\kiestersdae\svchost.exe, PE32 8->41 dropped 43 #U041f#U0440#U0438...U0434#U043e.exe.log, ASCII 8->43 dropped 45 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->45 dropped 47 3115e6c6-9470-46d7-a2ce-6b0a1327876c.exe, PE32 8->47 dropped 69 Creates an autostart registry key pointing to binary in C:\Windows 8->69 71 Adds a directory exclusion to Windows Defender 8->71 19 3115e6c6-9470-46d7-a2ce-6b0a1327876c.exe 44 2 8->19         started        21 powershell.exe 26 8->21         started        23 powershell.exe 8->23         started        25 7 other processes 8->25 49 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 12->49 dropped 51 06d16b3a-7da4-4b09-b960-2503a2d0c990.exe, PE32 12->51 dropped 73 Injects a PE file into a foreign processes 12->73 53 957ea908-f87c-423d-aa1f-c9d2b11aa263.exe, PE32 14->53 dropped 55 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 14->55 dropped 57 127.0.0.1 unknown unknown 16->57 file6 signatures7 process8 process9 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 25->35         started        37 conhost.exe 25->37         started        39 conhost.exe 25->39         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21c97688730d666e13f8b52aeec94371b7996cef7afcd2dd80d0ea1b76b5f3ec/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-20 16:02:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehexncdtbvtg4e7ywuvo5skdog3zs3hppl6nfxma2dvbw5vv6pwa._file
Verdict:
malicious
Similar samples:
2443683c507125b6d089b3537e9cb78ef67f0dd8ba5822a7a7ee78ca84feeba8
AgentTesla
2ac91449fd255e02594e29de0f1c66c70fb0ba1af3dd87846ffe3e21503ffb4d
AgentTesla
575abacc5769a079c29e1b1032853673df77376f6b6522b00edbd1b1531a1af0
AgentTesla
70cb4ed4ee85184589dc4b5bb72dd1313b133b428e6604bde1a7e1da7fb216ae
AgentTesla
750adca8e434c3d8cd88be58d28d842b862f6be645ab4b86fef5b6268da9d187
AgentTesla
7d6aee416fbfdfd3dd7cd2661c7f232f00dc6200ea3ca6cb67193bbe2979eac0
AgentTesla
a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017
AgentTesla
c7ce97bf28191b9f81871421f7f6fea0c86fca516d3e8706e16c0f07e9e7ed5b
AgentTesla
de84340eef0ca9f002d25e7a0ffdc5be906a2b0852c728008b9ac6928c3e7259
AgentTesla
+ 611 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211220-thcvxsbhel/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Windows security modification
Executes dropped EXE
AgentTesla Payload
Nirsoft
AgentTesla
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
21c97688730d666e13f8b52aeec94371b7996cef7afcd2dd80d0ea1b76b5f3ec
MD5 hash:
b8b51a0fa309292e603af2370756d44e
SHA1 hash:
b0006b19f6ce6e6733cbb924a20e73e3e96c8c2c
Link:
https://www.unpac.me/results/511d7198-69fd-47c6-a380-35f33152ba72/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/21c97688730d666e13f8b52aeec94371b7996cef7afcd2dd80d0ea1b76b5f3ec

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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
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.

  
Delivery method
Distributed via e-mail link
Cape
Cape
https://www.capesandbox.com/analysis/215506/

Comments