MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bdd8fb618fac11ac4607b9d16a0183a461366e00f37c09a651cf3fa62a61424. 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: 5bdd8fb618fac11ac4607b9d16a0183a461366e00f37c09a651cf3fa62a61424
SHA3-384 hash: 73a341bd8e5f35c834499d88682802042430478ee6b46a8b2016e40ebd40fc82f85c16f9dee8f805059c255b381dfaea
SHA1 hash: 2af887d4b422d3f85f062e3ba014e821a27ad1d6
MD5 hash: 232d6aa370b5985098e433acf6b831a8
humanhash: massachusetts-summer-pluto-mars
File name:fNpfx9reymzBhA3.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:641'024 bytes
First seen:2020-08-06 07:57:35 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 12288:2HGy9J+WbSCtIlbSeUunhNOF6viUqpVhJHc1x+4yjkAf3AZJpNDTh2Q:41e4IlbnhN+6VqpFHcQR3cF
Threatray 10'619 similar samples on MalwareBazaar
TLSH 40D4E0043B95A906C37D8E774A54402546B1EE6E6E12E3DB7EC4339B08BE7F80911BE7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hshgroups.co
Sending IP: 104.168.166.26
From: Joyce Lee<sxdfzc@hotmail.com>
Subject: FIRST ORDER FROM SEAWAY CHINA TRADING
Attachment: CATALOGUE.ARJ (contains "fNpfx9reymzBhA3.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
64
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/40356/
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
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/412576
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates executable files without a name
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
Moves itself to temp directory
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 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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 258555 Sample: fNpfx9reymzBhA3.exe Startdate: 06/08/2020 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Yara detected AgentTesla 2->55 57 Yara detected AntiVM_3 2->57 59 3 other signatures 2->59 6 fNpfx9reymzBhA3.exe 3 2->6         started        10 .exe 3 2->10         started        12 .exe 2 2->12         started        process3 file4 31 C:\Users\user\...\fNpfx9reymzBhA3.exe.log, ASCII 6->31 dropped 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->63 65 Injects a PE file into a foreign processes 6->65 14 fNpfx9reymzBhA3.exe 2 6 6->14         started        19 fNpfx9reymzBhA3.exe 6->19         started        67 Machine Learning detection for dropped file 10->67 69 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->69 21 .exe 4 10->21         started        23 .exe 10->23         started        25 .exe 10->25         started        27 .exe 10->27         started        29 .exe 12->29         started        signatures5 process6 dnsIp7 37 mail.sardaplywood.com 72.52.178.59, 49740, 49743, 587 LIQUIDWEBUS United States 14->37 33 C:\Users\user\AppData\Roaming\.exe, PE32 14->33 dropped 35 C:\Users\user\...\.exe:Zone.Identifier, ASCII 14->35 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Moves itself to temp directory 14->41 43 Tries to steal Mail credentials (via file access) 14->43 51 2 other signatures 14->51 45 Tries to harvest and steal ftp login credentials 21->45 47 Tries to harvest and steal browser information (history, passwords, etc) 21->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->49 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5bdd8fb618fac11ac4607b9d16a0183a461366e00f37c09a651cf3fa62a61424/
Threat name:
ByteCode-MSIL.Hacktool.Mimikatz
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 07:03:38 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lpoy7nqy7larvrdapoorniayhjdbgzxab434bgtfdtz7uyvgcqsa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'609 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/200806-hxn8rjakmx/
Behaviour
Suspicious behavior: RenamesItself
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
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/5bdd8fb618fac11ac4607b9d16a0183a461366e00f37c09a651cf3fa62a61424

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 fa6c646d659ecfa87a166fb912d92de3206922ea8ac804816692ab6a3d2bd76f

AgentTesla

Executable exe 5bdd8fb618fac11ac4607b9d16a0183a461366e00f37c09a651cf3fa62a61424

(this sample)

  
Dropped by
MD5 88f0bc9c62643e4d90a3687769a320d8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40356/
  
Dropped by
SHA256 fa6c646d659ecfa87a166fb912d92de3206922ea8ac804816692ab6a3d2bd76f

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