MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4545a7a1fbf2a6300b9342723bf4128cabd16a09a98d00ec5cdb1582d11a5f6. 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 2 File information Comments
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SHA256 hash: f4545a7a1fbf2a6300b9342723bf4128cabd16a09a98d00ec5cdb1582d11a5f6
SHA3-384 hash: 78cb58c27ddaadfc67d3fbe5ccafff59923fa7681ad8c9e4df1cc29297464e99c1567e46b6d34b978d4f93dbbe49dc3c
SHA1 hash: dbe0018b1a7b0c3ecb21df98a42397233358eed3
MD5 hash: d4dea4d4639e4161da1237e5a58e83a6
humanhash: jersey-hotel-butter-missouri
File name:grace.jpg.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:177'664 bytes
First seen:2022-05-12 19:35:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'655 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 1536:u5L3brDY3pXsM6xpeJnKdvAamzw8dDtAaG9ijHx:QL3brYUNvpeAn9i7x
TLSH T16C04D892F192C19DDDA40B71EC7AC8D801937D5DFD70A90E7892B39E2A732A2035ED47
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon c4dcd4d4dcd4d4d4 (7 x AgentTesla, 4 x Loki, 3 x RemcosRAT)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
305
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/270215/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/627d61b089dc6403e77a4d72/reports/c4035fb3-4b26-4753-a2dd-025cb8326550/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2cc975ec-6045-4968-987b-db2be27c9802
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/993128
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Encrypted powershell cmdline option found
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 sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: MSBuild connects to smtp port
Snort IDS alert for network traffic
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 / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 625624 Sample: grace.jpg.exe Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 7 grace.jpg.exe 15 4 2->7         started        12 newapp.exe 2 2->12         started        14 newapp.exe 1 2->14         started        process3 dnsIp4 39 62.197.136.3, 49771, 80 SPRINTLINKUS Netherlands 7->39 35 C:\Users\user\AppData\...\grace.jpg.exe.log, ASCII 7->35 dropped 61 Encrypted powershell cmdline option found 7->61 63 Writes to foreign memory regions 7->63 65 Injects a PE file into a foreign processes 7->65 16 MSBuild.exe 2 4 7->16         started        21 MSBuild.exe 7->21         started        23 powershell.exe 15 7->23         started        25 MSBuild.exe 7->25         started        27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        file5 signatures6 process7 dnsIp8 37 transportescascao.com 188.93.230.115, 49796, 587 CLARANET-ASClaraNETLTDGB Portugal 16->37 33 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 16->33 dropped 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->49 51 Tries to steal Mail credentials (via file / registry access) 16->51 53 Tries to harvest and steal ftp login credentials 16->53 59 3 other signatures 16->59 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->57 31 conhost.exe 23->31         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4545a7a1fbf2a6300b9342723bf4128cabd16a09a98d00ec5cdb1582d11a5f6/
Threat name:
ByteCode-MSIL.Downloader.PsDownload
Create hunting rule
Status:
Malicious
First seen:
2022-05-12 10:30:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
18 of 26 (69.23%)
Threat level:
  3/5
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220512-ya8d3scegl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
f4545a7a1fbf2a6300b9342723bf4128cabd16a09a98d00ec5cdb1582d11a5f6
MD5 hash:
d4dea4d4639e4161da1237e5a58e83a6
SHA1 hash:
dbe0018b1a7b0c3ecb21df98a42397233358eed3
Link:
https://www.unpac.me/results/f83d3eb3-622e-4f3c-bfd9-1d3b6c31ebc2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f4545a7a1fbf2a6300b9342723bf4128cabd16a09a98d00ec5cdb1582d11a5f6

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/270215/
  
URLhaus
https://urlhaus.abuse.ch/url/2192073/

Comments