MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308
SHA3-384 hash: cee60a9234078049cb252cfd85dc6717b1a998ca25394a09def14f1603663fba481780a92794e98aa66a566732875fc1
SHA1 hash: a05f086c7b914d195b8ab737479126ff8a2d961c
MD5 hash: 31b4bc2449c8f98227e5d6180ea3008c
humanhash: floor-juliet-california-item
File name:DHL_Document.pdf.html.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'108'992 bytes
First seen:2020-07-31 05:54:48 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 24576:fWoVaNkNilJ492vyj/nGkDxDxIpKn7udA1d4ERMu1q:fWowNOil292C/Gk91B7udOOyMb
Threatray 10'820 similar samples on MalwareBazaar
TLSH 9C35CE88F0C91165FC19B7759EB6C8768A23FDBE6870401F25ED3D673BBE3862441922
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: operinter.com
Sending IP: 103.99.1.149
From: alejandra.garcia<alejandra.garcia@operinter.com>
Subject: RE: entShipm Arrival N
Attachment: DHL_Document.pdf.html.zip (contains "DHL_Document.pdf.html.exe")

AgentTesla SMTP exfil server:
mail.framafilms.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35793/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/404515
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
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 steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 254487 Sample: DHL_Document.pdf.html.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 92 30 Yara detected AgentTesla 2->30 32 Yara detected AntiVM_3 2->32 34 Machine Learning detection for sample 2->34 36 2 other signatures 2->36 7 DHL_Document.pdf.html.exe 3 2->7         started        11 BAVLA.exe 4 2->11         started        13 BAVLA.exe 3 2->13         started        process3 file4 28 C:\Users\...\DHL_Document.pdf.html.exe.log, ASCII 7->28 dropped 44 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->44 15 RegSvcs.exe 3 7->15         started        18 conhost.exe 11->18         started        20 conhost.exe 13->20         started        signatures5 process6 signatures7 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->46 48 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->48 22 RegSvcs.exe 2 6 15->22         started        process8 file9 26 C:\Users\user\AppData\Roaming\...\BAVLA.exe, PE32 22->26 dropped 38 Tries to steal Mail credentials (via file access) 22->38 40 Tries to harvest and steal browser information (history, passwords, etc) 22->40 42 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->42 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-31 05:56:11 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hrz7y2vyu5s6usfb5zi2fiyuf7qfgmxemyoc6lwakjvoejnm6mea._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
16f661258c7572ebd08fa986cfe3e2f1b24196d366d048102900e60979f42ca4
AgentTesla
1a5841a21e616296c4aafe372c36998c9e46c1f79513a379e59ee7aedc7a2535
AgentTesla
47ccdee28a4d20ec5d8234d66a5b95b2f3dfd2966b3a63e38af94f9cdfcc7c2d
AgentTesla
4ff48615a61d55c9d93ca0e334feb43cee128948389f2c031006210aa4f3fc5a
AgentTesla
891a9376f1d8e1a80995a4139e8b06e1cd2c9f8ae41e10203863be9944e743ac
AgentTesla
9c301c48f5db16bfee94ef08013387f2e2a26e29b5533add910f0994a49d37a3
AgentTesla
ab6c643159c159af03c43e99e1ee15747f4c72de44e47b1ba6675d8160f5aa6e
AgentTesla
c176d7b838d9146e64732d143cda3c07f4c76b693ab940ca045a51d07c52faae
AgentTesla
c75fa16118d5d921d598bd9ff539426dcfd7aece03815e5be6414763ba72bda6
AgentTesla
f8489030f3c79639a56320cdd06179b2f3cf280824cd80d8b3c333c8aabd3d9f
AgentTesla
+ 10'810 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/200731-jnsce8rb4n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
0.45
Link:
https://yomi.yoroi.company/submissions/3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308

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

zip 7ba513323cd94c00847e7e5353ed95f231794364a0a52b586607794972cf2a86

AgentTesla

Executable exe 3c73fc6ab8a765ea48a1ee51a2a3142fe05332e4661c2f2ec0526ae225acf308

(this sample)

  
Dropped by
MD5 59e2b498cb4492b54f27635f32e823de
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7ba513323cd94c00847e7e5353ed95f231794364a0a52b586607794972cf2a86
Cape
Cape
https://www.capesandbox.com/analysis/35793/

Comments