MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4e4dd60f923a5657aadacb3f50344cc8474c6551728fde0aad4d61418cdb738. 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: a4e4dd60f923a5657aadacb3f50344cc8474c6551728fde0aad4d61418cdb738
SHA3-384 hash: 91cbc175985e851c717e88f9d064700b031063e491b67c9acc35af55aa5ced245bef7f371d8d09412a0bab27286250a8
SHA1 hash: d1c758ef280a42b16a9232920c8c163149f56168
MD5 hash: bb97ec660045f68b5399e255692f793a
humanhash: uniform-queen-failed-undress
File name:CoAkUoAmZrOvCQj.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:720'896 bytes
First seen:2020-07-21 19:20:04 UTC
Last seen:2020-07-21 20:09:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:qQNDdeY6xApfHn0EwLFe9veye/ncop/VCmPrRUQZy:4YIKO5Aeye/cop9CafZy
Threatray 10'297 similar samples on MalwareBazaar
TLSH 2BE49E00FBF4C5CAD36A1F7AD47141009AB5F95B9BE6E78B2B84F2AD18523984743F12
Reporter jarumlus
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/30395/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.EOQO.22454.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP 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 with Startup directory
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/393735
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 249157 Sample: CoAkUoAmZrOvCQj.exe Startdate: 22/07/2020 Architecture: WINDOWS Score: 100 27 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 3 other signatures 2->33 7 CoAkUoAmZrOvCQj.exe 9 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\DxApFE.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmp32CE.tmp, XML 7->21 dropped 23 C:\Users\user\...\CoAkUoAmZrOvCQj.exe.log, ASCII 7->23 dropped 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->35 37 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->37 39 Contains functionality to register a low level keyboard hook 7->39 11 CoAkUoAmZrOvCQj.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 asnbanknl.com 185.36.81.151, 21, 49715, 49716 TELE-ASTeleAsiaLimitedHK Lithuania 11->25 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->41 43 Tries to steal Mail credentials (via file access) 11->43 45 Tries to harvest and steal ftp login credentials 11->45 47 2 other signatures 11->47 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4e4dd60f923a5657aadacb3f50344cc8474c6551728fde0aad4d61418cdb738/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 19:21:05 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utsn2yhzeoswk6vnvsz7ka2ezschjrsvc4up3yfk2tlbiggnw44a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'287 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200721-qrrzaeh9ka/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

8e9c4a3a4918d2b091b3913bce3396ce9e3795b9cee89db005e2bab0ea9459e4

AgentTesla

Executable exe a4e4dd60f923a5657aadacb3f50344cc8474c6551728fde0aad4d61418cdb738

(this sample)

  
Dropped by
MD5 d6b6475dbd255171aa7cf5e34e036f38
  
Dropped by
SHA256 8e9c4a3a4918d2b091b3913bce3396ce9e3795b9cee89db005e2bab0ea9459e4
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/30395/

Comments