MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89832aeecfac3c9bd0c972fd727f0987054e2c501aaf40b61c4843e2923d2869. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 89832aeecfac3c9bd0c972fd727f0987054e2c501aaf40b61c4843e2923d2869
SHA3-384 hash: 0a19fc5686c902c5277520a14ec5fae32df55ad6e8ad219393ea171cda034e6c71743025e4296265ddf8aad295991845
SHA1 hash: 885ee8f82104912ab6392cbe397c88bb01f1d263
MD5 hash: fcbf7204db1e0beed9d269641d65f957
humanhash: artist-beryllium-lactose-bulldog
File name:POOED20201366.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:432'128 bytes
First seen:2020-08-05 12:01:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:etS5dtWF2Hj5dp8cD7LxXoJZ5UR6XTOQf:etSLem/ycD1o75T
Threatray 10'704 similar samples on MalwareBazaar
TLSH F494F11C3690665DF1BE0E3F6C7001C79E22F81FDE22D64B1A762178067EA5CAC65F62
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.jetsd.live
Sending IP: 176.119.30.85
From: salesplastic@ashut.com
Subject: PO/O/ED/2020/1366
Attachment: POOED20201366.arj (contains "POOED20201366.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39525/
Detection(s):
Win.Packed.Nanocore-9229594-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411111
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Capture Wi-Fi password
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257879 Sample: POOED20201366.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Sigma detected: Capture Wi-Fi password 2->63 65 9 other signatures 2->65 8 POOED20201366.exe 5 2->8         started        12 uEtmoKl.exe 3 2->12         started        14 uEtmoKl.exe 2->14         started        process3 file4 43 C:\Users\user\AppData\...\vqtzTLHhWYa.exe, PE32 8->43 dropped 45 C:\Users\...\vqtzTLHhWYa.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\Users\user\AppData\Local\...\tmp77CA.tmp, XML 8->47 dropped 49 C:\Users\user\...\POOED20201366.exe.log, ASCII 8->49 dropped 81 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->81 83 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->83 85 Contains functionality to register a low level keyboard hook 8->85 87 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->87 16 POOED20201366.exe 2 6 8->16         started        21 schtasks.exe 1 8->21         started        89 Machine Learning detection for dropped file 12->89 91 Injects a PE file into a foreign processes 12->91 23 uEtmoKl.exe 3 12->23         started        25 schtasks.exe 1 12->25         started        signatures5 process6 dnsIp7 51 smtp.greenslr.com 16->51 53 us2.smtp.mailhostbox.com 208.91.199.225, 49733, 49734, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->53 39 C:\Users\user\AppData\Roaming\...\uEtmoKl.exe, PE32 16->39 dropped 41 C:\Users\user\...\uEtmoKl.exe:Zone.Identifier, ASCII 16->41 dropped 67 Tries to harvest and steal WLAN passwords 16->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->69 71 Installs a global keyboard hook 16->71 27 netsh.exe 16->27         started        29 conhost.exe 21->29         started        55 smtp.greenslr.com 23->55 57 192.168.2.1 unknown unknown 23->57 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->73 75 Tries to steal Mail credentials (via file access) 23->75 77 Tries to harvest and steal ftp login credentials 23->77 79 Tries to harvest and steal browser information (history, passwords, etc) 23->79 31 netsh.exe 23->31         started        33 conhost.exe 25->33         started        file8 signatures9 process10 process11 35 conhost.exe 27->35         started        37 conhost.exe 31->37         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/89832aeecfac3c9bd0c972fd727f0987054e2c501aaf40b61c4843e2923d2869/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 12:02:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rgbsv3wpvq6jxugjol6xe7yjq4cu4lcqdkxubnq4jbb6fer5fbuq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
566d75da52a7a8452233464bc0e22b5ee7242ccdc71cc8e518b76621eebe269f
AgentTesla
63a24af4df426ba70cf00f869d8c2ffa9cfbed182bde8b85fa7dfa77355e830c
AgentTesla
6c13cac565c109b9a426bb931a2d3d4b5e846e16a6a30f78076e0d2bdfe4577f
AgentTesla
7931c2fc08b888aee9fdcebc85e09b814f280227a2320692a3966328c78d7dbb
AgentTesla
7f53bd572119fdf76ecbbd85af8c3605a989a01d1fe3121353afff651b8ddfe6
AgentTesla
93d94861c9feb7b9fca386254d8ab5637cf78e4145527753fdafe7346d28fbe3
AgentTesla
c132258873a943b096109fc0097254c351584aa888345da749cdc12badf35da1
AgentTesla
ccd2ac5dd1eb20c1e42569f55fe7ee5c428a2afbfcb909205e7ecd3077b5c677
AgentTesla
ecefae0dfdd4a990c942fc9dcc0b375796922dcf03420de8d17e4529eea9632e
AgentTesla
ff9861dd2b7ce7f396ecbcbbdbff007827a32740243b1b3a848c2566ab32fa59
AgentTesla
+ 10'694 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware persistence trojan family:agenttesla
Link:
https://tria.ge/reports/200805-l1y99c6etn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/89832aeecfac3c9bd0c972fd727f0987054e2c501aaf40b61c4843e2923d2869

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

arj 5a6473afa5eb4f04eb5fa442198a90c27fbc9da2582e51bc070870cfeb3ba669

AgentTesla

Executable exe 89832aeecfac3c9bd0c972fd727f0987054e2c501aaf40b61c4843e2923d2869

(this sample)

  
Dropped by
MD5 2768ae5cc4f5f0ca91c54c49dd69d75a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39525/
  
Dropped by
SHA256 5a6473afa5eb4f04eb5fa442198a90c27fbc9da2582e51bc070870cfeb3ba669

Comments