MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4
SHA3-384 hash: 0de81dd5ae97d96e064db4b12da250223b8eb148953ccbf0db294b9a7dcf4e3d3e6441e698768f0153f4e147042d6ce4
SHA1 hash: 2abcace81040aec403ad0374e39f3809403ca28d
MD5 hash: 5f1de1b48258ba6f813ceda56967aa7c
humanhash: october-early-stream-pennsylvania
File name:5f1de1b48258ba6f813ceda56967aa7c.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:3'359'232 bytes
First seen:2021-05-06 16:50:52 UTC
Last seen:2021-05-06 17:04:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:oTehk2CmTlnHglPBPfMkFblKDgSlcEIESwmQBOk+StG62a8xfTaupYfJg2EABjyQ:oTZ4
Threatray 79 similar samples on MalwareBazaar
TLSH 22F5F37482BD84A2A128F1E2A33977D58DE701BEB43798D60710274BD7D1D4A8DCB3E6
Reporter abuse_ch
Tags:AgentTesla exe Telegram

Intelligence

File Origin
# of uploads :
3
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/151769/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.703.31861.7667.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Creating a process from a recently created file
Sending a UDP request
Creating a file in the Windows subdirectories
Creating a window
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Adding exclusions to Windows Defender
Enabling autorun by creating a file
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/716363
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell adding suspicious path to exclusion list
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 407092 Sample: ix3SHFmD4h.exe Startdate: 07/05/2021 Architecture: WINDOWS Score: 100 69 canonicalizer.ucsuri.tcs 2->69 71 prda.aadg.msidentity.com 2->71 73 api.telegram.org 2->73 75 Found malware configuration 2->75 77 Multi AV Scanner detection for dropped file 2->77 79 Sigma detected: Powershell adding suspicious path to exclusion list 2->79 81 11 other signatures 2->81 9 ix3SHFmD4h.exe 5 9 2->9         started        13 svchost.exe 2->13         started        15 3CaGsd8r9OF4xaYa15Bod8z53Aer818BVZ363522j8WH0e.exe 2->15         started        17 6 other processes 2->17 signatures3 process4 dnsIp5 59 C:\Windows\Resources\Themes\...\svchost.exe, PE32 9->59 dropped 61 3CaGsd8r9OF4xaYa15...BVZ363522j8WH0e.exe, PE32 9->61 dropped 63 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 9->63 dropped 65 2 other malicious files 9->65 dropped 85 Drops PE files to the startup folder 9->85 87 Creates an autostart registry key pointing to binary in C:\Windows 9->87 89 Adds a directory exclusion to Windows Defender 9->89 91 Drops PE files with benign system names 9->91 20 3CaGsd8r9OF4xaYa15Bod8z53Aer818BVZ363522j8WH0e.exe 3 9->20         started        23 powershell.exe 8 9->23         started        25 powershell.exe 8 9->25         started        33 6 other processes 9->33 93 Multi AV Scanner detection for dropped file 13->93 95 Machine Learning detection for dropped file 13->95 97 Tries to delay execution (extensive OutputDebugStringW loop) 13->97 27 powershell.exe 15->27         started        29 powershell.exe 15->29         started        31 powershell.exe 15->31         started        67 127.0.0.1 unknown unknown 17->67 99 Changes security center settings (notifications, updates, antivirus, firewall) 17->99 file6 signatures7 process8 signatures9 83 Adds a directory exclusion to Windows Defender 20->83 35 powershell.exe 20->35         started        37 powershell.exe 20->37         started        39 powershell.exe 20->39         started        41 conhost.exe 23->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 29->47         started        49 conhost.exe 33->49         started        51 4 other processes 33->51 process10 process11 53 conhost.exe 35->53         started        55 conhost.exe 37->55         started        57 conhost.exe 39->57         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4/
Threat name:
ByteCode-MSIL.Trojan.Vimditator
Create hunting rule
Status:
Malicious
First seen:
2021-05-06 15:37:53 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ggwzbyfyhq57erfuitnz2wmjcryzu6dtjj7kzljzmjdqsojgmdca._file
Verdict:
unknown
Similar samples:
08610c330e4c1245c7b694f173010cb9494c50d9b070df88132fac1bb534f7af
AgentTesla
17828f7e3aa63c317b04baf8c3dbd4e069c12f66f45ae438094ae17cb7f5c7b9
AgentTesla
673500aef66cdad3be016e872ca2cf17bd814857bf53f7ef24a0f534a3a47dcd
AgentTesla
67947dd13a089589ad2e0df76fe6e7d4b2c7a2ce5b74d1608d1298250540d997
AgentTesla
756ab3c5bffff0818a4c93ccc7354abf63836b91faa2590f1c1b83284ef41de4
AgentTesla
992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621
AgentTesla
a11a2be54b4e16b1ad08516b46da1ded79de8b7a31e4cf7537e21abce1639816
AgentTesla
ae6d4b4b89654fbd35c69c05a85fd4a2b84edd7091ffe372f4ba7115c2b8fbf8
AgentTesla
cdea1065a53de4df5948c4ddb1746c4f0be7311db2dbc152b34951b65417af21
AgentTesla
ce9613c47308b50bb5ff395db88d24d66615656ab51b736b0c2ec2b7a9b145aa
AgentTesla
+ 69 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210506-t1l3e1ezg6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Drops startup file
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
Windows security modification
Executes dropped EXE
AgentTesla Payload
AgentTesla
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
2f948919b4f17225f647c13dff794cf5bd1ffc12dfd265ff4dba2c51f2a8d9b8
MD5 hash:
1225a7544dac0576a085e0d61b5bc386
SHA1 hash:
4d54c602b3047aeb60369f9154afd33212868b58
Link:
https://www.unpac.me/results/194b6c46-6c12-4892-8402-c3a686427e02/
SH256 hash:
73c6d52f33a5cc88198a676838717c61906b8c6490729cd8aa2e2f9f0a704506
MD5 hash:
52e6dc97a160ade809933d1c1b3994df
SHA1 hash:
cb622608c108a992352964ab2ee5190275fbee90
Link:
https://www.unpac.me/results/194b6c46-6c12-4892-8402-c3a686427e02/
SH256 hash:
31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4
MD5 hash:
5f1de1b48258ba6f813ceda56967aa7c
SHA1 hash:
2abcace81040aec403ad0374e39f3809403ca28d
Link:
https://www.unpac.me/results/194b6c46-6c12-4892-8402-c3a686427e02/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Telegram_Exfiltration_Via_Api
Create hunting rule
Author:lsepaolo
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.

Web download

AgentTesla

Executable exe 31ad90e0b83c3bf244b444db9d598914719a78734a7eacad39624709392660c4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1200460/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/151769/

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