MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64. 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: b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64
SHA3-384 hash: 9d7f361e43101ca898eed018f7883ac75b0f3272656d3c90659d64382c2628627addd48beaf86ceb153421f0ce1f5d7a
SHA1 hash: f2688fadfca07fb4e515264be0c887feeb7d3228
MD5 hash: 828c65ef0feb3b8a5541408303e6e573
humanhash: oscar-apart-avocado-seventeen
File name:MV HUA SHAN CALLING FDA_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:707'584 bytes
First seen:2020-08-27 08:06:31 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:TjHEDCtauEgBUWHwsd86YCnwCh473rkpML:vfEgKWFd86Bw6krkmL
Threatray 10'564 similar samples on MalwareBazaar
TLSH 8FE4026532AEC71AD5DF0B70589D72508BF1BC152861E71B7A10B3BF24BAB818E01B67
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sdj0.001.zazxonio.ml
Sending IP: 157.245.105.92
From: korea@s-5.org <korea@s-5.org>
Subject: RE: Re: MV HUA SHAN CALLING / FDA
Attachment: MV HUA SHAN CALLING FDA_pdf.rar (contains "MV HUA SHAN CALLING FDA_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/51671/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452383
Signature
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
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: 278552 Sample: MV HUA SHAN CALLING  FDA_pdf.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 Yara detected AgentTesla 2->67 69 7 other signatures 2->69 6 MV HUA SHAN CALLING  FDA_pdf.exe 1 2->6         started        10 WNRUXJ.exe 2->10         started        12 WNRUXJ.exe 1 2->12         started        process3 file4 35 C:\...\MV HUA SHAN CALLING  FDA_pdf.exe.log, ASCII 6->35 dropped 71 Injects a PE file into a foreign processes 6->71 14 MV HUA SHAN CALLING  FDA_pdf.exe 2 5 6->14         started        19 MV HUA SHAN CALLING  FDA_pdf.exe 6->19         started        21 WNRUXJ.exe 2 10->21         started        23 WNRUXJ.exe 10->23         started        25 WNRUXJ.exe 10->25         started        73 Multi AV Scanner detection for dropped file 12->73 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->75 77 Machine Learning detection for dropped file 12->77 79 2 other signatures 12->79 27 WNRUXJ.exe 12->27         started        29 WNRUXJ.exe 12->29         started        31 WNRUXJ.exe 12->31         started        33 2 other processes 12->33 signatures5 process6 dnsIp7 41 smtp.yandex.ru 77.88.21.158, 49720, 49725, 587 YANDEXRU Russian Federation 14->41 43 192.168.2.1 unknown unknown 14->43 45 smtp.yandex.com 14->45 37 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 14->37 dropped 39 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 14->39 dropped 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->49 51 Moves itself to temp directory 14->51 53 Tries to steal Mail credentials (via file access) 14->53 55 Installs a global keyboard hook 14->55 47 smtp.yandex.com 21->47 57 Tries to harvest and steal ftp login credentials 21->57 59 Tries to harvest and steal browser information (history, passwords, etc) 21->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->61 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 04:29:37 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjjsxzxu6gcqjugnwuhxlwcnigeaea6tvugvdjez5kgurmwzpjsa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'554 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/200827-mqxx99rzh2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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 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:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64

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 c723a665ceb9ea69fe25207a52751fbf43ce2f58e5d37388b389b4e55a28fbe0

AgentTesla

Executable exe b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64

(this sample)

  
Dropped by
MD5 c061f03f6fb72a1063f46f50af5edc50
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51671/
  
Dropped by
SHA256 c723a665ceb9ea69fe25207a52751fbf43ce2f58e5d37388b389b4e55a28fbe0

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