MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53a05748df93fa8c44d170d47a1abd61ec9ec27980867c7cb87d3d9841f70ccf. 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: 53a05748df93fa8c44d170d47a1abd61ec9ec27980867c7cb87d3d9841f70ccf
SHA3-384 hash: edeefdd18483cbf72cbb7633b87619dc5c2e1f70b81ffb7c9c3750f61f62b123d05ec5a0c2e29a6ee568c2b2637aa152
SHA1 hash: 479be8033a988e1bd41a5d3d2f97c921a76484f3
MD5 hash: 3cf0389affb5ba328147fed52b2c036a
humanhash: summer-mississippi-south-beryllium
File name:Shipping Documents.doc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:624'128 bytes
First seen:2020-08-03 07:04:57 UTC
Last seen:Never
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:qb68ypoftvR/m6GvwNT2kbkKvfDwGzZZ4cZJU:qDypSvBm6Gm9bk6DwGzZycZ
Threatray 10'609 similar samples on MalwareBazaar
TLSH C3D4CF7C17E00A29F9AE177EAC720503DF64F05F5827A39F06B154AA08B7B94AD40F57
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vw15060.dinaserver.com
Sending IP: 82.98.191.51
From: DHL = Delivery Service® <alejandro.cabrera@dhl.com>
Subject: FWD: DHL URGENTLY DELIVERY
Attachment: Shipping Documents.doc.r03 (contains "Shipping Documents.doc.exe")

AgentTesla SMTP exfil server:
smtp.coffiices.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407328
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
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: Suspicious Double Extension
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 steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 255894 Sample: Shipping Documents.doc.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Found malware configuration 2->65 67 Yara detected AgentTesla 2->67 69 8 other signatures 2->69 8 goICPG.exe 3 2->8         started        11 Shipping Documents.doc.exe 3 2->11         started        14 goICPG.exe 2 2->14         started        process3 file4 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->71 73 Machine Learning detection for dropped file 8->73 75 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->75 16 goICPG.exe 2 8->16         started        41 C:\Users\...\Shipping Documents.doc.exe.log, ASCII 11->41 dropped 77 Injects a PE file into a foreign processes 11->77 20 Shipping Documents.doc.exe 2 5 11->20         started        23 Shipping Documents.doc.exe 11->23         started        25 goICPG.exe 14->25         started        signatures5 process6 dnsIp7 43 208.91.199.223, 49749, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->43 45 smtp.coffiices.com 16->45 51 Tries to harvest and steal ftp login credentials 16->51 53 Tries to harvest and steal browser information (history, passwords, etc) 16->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->55 27 reg.exe 16->27         started        47 smtp.coffiices.com 20->47 49 us2.smtp.mailhostbox.com 208.91.199.225, 49748, 587 PUBLIC-DOMAIN-REGISTRYUS United States 20->49 35 C:\Users\user\AppData\Roaming\...\goICPG.exe, PE32 20->35 dropped 37 C:\Windows\System32\drivers\etc\hosts, ASCII 20->37 dropped 39 C:\Users\user\...\goICPG.exe:Zone.Identifier, ASCII 20->39 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->57 59 Tries to steal Mail credentials (via file access) 20->59 61 Modifies the hosts file 20->61 29 reg.exe 20->29         started        file8 signatures9 process10 process11 31 conhost.exe 27->31         started        33 conhost.exe 29->33         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/53a05748df93fa8c44d170d47a1abd61ec9ec27980867c7cb87d3d9841f70ccf/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 07:06:09 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=koqfosg7sp5iyrgrodkhugv5mhwj5qtzqcdhy7fypu6zqqpxbthq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'599 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200803-b15d7tr31s/
Behaviour
Modifies registry key
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/53a05748df93fa8c44d170d47a1abd61ec9ec27980867c7cb87d3d9841f70ccf

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

r03 d454f93f576ab127ca4755789b0b90ba72323a0ff49fd37002622ecd91cb7de1

AgentTesla

Executable exe 53a05748df93fa8c44d170d47a1abd61ec9ec27980867c7cb87d3d9841f70ccf

(this sample)

  
Dropped by
MD5 8e3e301e9ad690d024ba9461e7979317
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 d454f93f576ab127ca4755789b0b90ba72323a0ff49fd37002622ecd91cb7de1
Cape
Cape
https://www.capesandbox.com/analysis/37407/

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