MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3
SHA3-384 hash: 4e128431332f7b654b58c76bcffd9586b6b97b6ded82af8bb98186c88dcf11779654bc2728941af3546018f24f0a9519
SHA1 hash: 76b04133c97c8689d1f4d567103775cc91e67236
MD5 hash: cbfff4b18ad63daf6990e48335a7aa1b
humanhash: mars-foxtrot-kentucky-stairway
File name:Quotation Request.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'074'176 bytes
First seen:2020-07-18 19:28:04 UTC
Last seen:2020-07-23 09:54:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:IrMnqjzGYIdjMxMSo15GXacXYp3uyAjrMnnm/2k4zUL85A7XGrBMsli6qgxjcgd3:IrvxguwcLjr85fM0i6Lxjcgx/f
Threatray 10'755 similar samples on MalwareBazaar
TLSH 07354BF7964991C2C4AFAEBCC98287710A97ED80F0F5920B03D27C3736767A1D88556B
Reporter jarumlus
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
3
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27723/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.43507149.17591.25506.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Creating a file in the %temp% subdirectories
Reading critical registry keys
Creating a file
Deleting a recently created file
Reading Telegram data
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a TCP request to an infection source
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/389355
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for dropped file
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)
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 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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246855 Sample: Quotation Request.exe Startdate: 19/07/2020 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Found malware configuration 2->63 65 Multi AV Scanner detection for dropped file 2->65 67 9 other signatures 2->67 8 Quotation Request.exe 7 2->8         started        12 CpSnJ.exe 3 2->12         started        14 CpSnJ.exe 2->14         started        process3 file4 47 C:\Users\user\AppData\...\jFbVLVAWwUm.exe, PE32 8->47 dropped 49 C:\Users\...\jFbVLVAWwUm.exe:Zone.Identifier, ASCII 8->49 dropped 51 C:\Users\user\AppData\Local\Temp\tmp8C1.tmp, XML 8->51 dropped 53 C:\Users\user\...\Quotation Request.exe.log, ASCII 8->53 dropped 81 Injects a PE file into a foreign processes 8->81 16 Quotation Request.exe 2 5 8->16         started        21 schtasks.exe 1 8->21         started        83 Multi AV Scanner detection for dropped file 12->83 85 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->85 87 Machine Learning detection for dropped file 12->87 89 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->89 23 CpSnJ.exe 2 12->23         started        25 CpSnJ.exe 12->25         started        27 CpSnJ.exe 12->27         started        29 CpSnJ.exe 14->29         started        signatures5 process6 dnsIp7 55 varda.com.tr 5.2.84.160, 49732, 49736, 587 ALASTYRTR Turkey 16->55 57 mail.varda.com.tr 16->57 41 C:\Users\user\AppData\Local\...\CpSnJ.exe, PE32 16->41 dropped 43 C:\Windows\System32\drivers\etc\hosts, ASCII 16->43 dropped 45 C:\Users\user\...\CpSnJ.exe:Zone.Identifier, ASCII 16->45 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->69 71 Tries to steal Mail credentials (via file access) 16->71 73 Modifies the hosts file 16->73 31 reg.exe 16->31         started        33 conhost.exe 21->33         started        59 mail.varda.com.tr 23->59 75 Tries to harvest and steal ftp login credentials 23->75 77 Tries to harvest and steal browser information (history, passwords, etc) 23->77 79 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->79 35 reg.exe 23->35         started        file8 signatures9 process10 process11 37 conhost.exe 31->37         started        39 conhost.exe 35->39         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-17 06:13:31 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxo2fce2f6xd3w7fjrykn73ipu3grb5gojic2acrgvb3xgveqlzq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'745 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200718-pkt7e6zs9x/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
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
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3

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

rar 40d5bbe1d42fcbf09fa3789174d04f8a07c44417ecf1b9823a9dda4f399c12d5

AgentTesla

Executable exe 55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3

(this sample)

  
Dropped by
MD5 dd160559c24405ee18fec9e2399ee5b8
  
Dropped by
SHA256 40d5bbe1d42fcbf09fa3789174d04f8a07c44417ecf1b9823a9dda4f399c12d5
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/27723/

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