MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf
SHA3-384 hash: cb59d0efc5fafcf66e5a78beca2b489807f70faec272534a8f86c524b215658eb04036c3cdc726578e6480f0811f4cc5
SHA1 hash: 2cd79476c9f2fc27b4b6a8184d10b08ddb31b553
MD5 hash: 24eb97c4f728a971ac2d4570c00d3205
humanhash: zulu-artist-alaska-hawaii
File name:PO 51-08042020,pdf.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:357'680 bytes
First seen:2020-08-05 07:39:20 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 6144:tECwt2D7+OwxwhDLazVv3uOfaZyv4MXsnWEVJtySDWEHPivl:tBwt22ZxwhHA94M8nWEA
Threatray 10'625 similar samples on MalwareBazaar
TLSH B774D0D2F1842CC4E55E5B314D37EC551297AFB9D870980E69A5B62AA7B32C32037C8F
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: cloudhost-77552.us-midwest-1.nxcli.net
Sending IP: 209.126.25.80
From: FANG <maxliu@jiumao.net.cn>
Subject: PO 51-04082020
Attachment: PO 51-08042020.xz (contains "PO 51-08042020,pdf.scr")

Intelligence

File Origin
# of uploads :
1
# of downloads :
59
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39106/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Sending a UDP request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410401
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
Contains functionality to register a low level keyboard hook
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257445 Sample: PO 51-08042020,pdf.scr Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 45 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->45 47 Yara detected AgentTesla 2->47 49 Drops PE files to the startup folder 2->49 51 Binary contains a suspicious time stamp 2->51 6 PO 51-08042020,pdf.exe 2 5 2->6         started        10 PO 51-08042020,pdf.exe 5 2->10         started        12 PO 51-08042020,pdf.exe 5 2->12         started        14 PO 51-08042020,pdf.exe 5 2->14         started        process3 file4 29 C:\Users\user\...\PO 51-08042020,pdf.exe, PE32 6->29 dropped 31 C:\...\PO 51-08042020,pdf.exe:Zone.Identifier, ASCII 6->31 dropped 53 Creates an undocumented autostart registry key 6->53 55 Writes to foreign memory regions 6->55 57 Allocates memory in foreign processes 6->57 16 RegSvcs.exe 2 6->16         started        59 Creates autostart registry keys with suspicious names 10->59 19 RegSvcs.exe 2 10->19         started        21 RegSvcs.exe 10->21         started        61 Injects a PE file into a foreign processes 12->61 23 RegSvcs.exe 2 12->23         started        25 RegSvcs.exe 2 14->25         started        27 RegSvcs.exe 14->27         started        signatures5 process6 signatures7 33 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->33 35 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->35 37 Contains functionality to register a low level keyboard hook 16->37 39 Tries to steal Mail credentials (via file access) 19->39 41 Tries to harvest and steal browser information (history, passwords, etc) 19->41 43 Installs a global keyboard hook 19->43
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 01:29:35 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kww5lzitrpzvzhxrufelnajvrzdtcey2ok7a5pwvtiuop575p2xq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'615 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200805-5ls1cm5sgn/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Drops startup file
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Modifies WinLogon for persistence
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

xz 3213ef7ea9dc62e7c60df2ba5ba82f68ba2a28112c8fb1b3e67002c3f96b22c5

AgentTesla

Executable exe 55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf

(this sample)

  
Dropped by
MD5 60e693f1f9c9a071791637e278d701ff
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 3213ef7ea9dc62e7c60df2ba5ba82f68ba2a28112c8fb1b3e67002c3f96b22c5
Cape
Cape
https://www.capesandbox.com/analysis/39106/

Comments