MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81f88183029a59901067dd41d3b5fccdfbfc71600c6ac5cc259b83031cdb2b50. 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: 13
| SHA256 hash: | 81f88183029a59901067dd41d3b5fccdfbfc71600c6ac5cc259b83031cdb2b50 |
|---|---|
| SHA3-384 hash: | 19e903083caa785669983ce79fe00a224b6766ad1c76cdab29717a41c4446a6dc22b60cda2cde5e412c5fa8a7269d5b1 |
| SHA1 hash: | 4da01756f1dcc825464829670e116a0db32dd43b |
| MD5 hash: | 937fca0634226eed249bb261d7515fb9 |
| humanhash: | colorado-romeo-lima-mango |
| File name: | COSU802638767087391028.xlsx.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 486'400 bytes |
| First seen: | 2022-12-12 08:45:21 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 12288:HGOl7XR1PhHYIfBcHGzR3pYPvLfoa52MzhWLFRW/:HD7XfZWmUDOUhWLvW/ |
| Threatray | 778 similar samples on MalwareBazaar |
| TLSH | T1D5A4E10B88EE0E66F0D3BAF8872DBAE748F540980345DA2F8E51DDB99D10C89D61F5C5 |
| TrID | 56.5% (.EXE) Win64 Executable (generic) (10523/12/4) 11.0% (.ICL) Windows Icons Library (generic) (2059/9) 10.9% (.EXE) OS/2 Executable (generic) (2029/13) 10.7% (.EXE) Generic Win/DOS Executable (2002/3) 10.7% (.EXE) DOS Executable Generic (2000/1) |
| File icon (PE): |  |
| dhash icon | 8f43484c4c4a418f (10 x AgentTesla, 1 x Formbook) |
| Reporter |  adrian__luca |
| Tags: | AgentTesla exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
COSU802638767087391028.xlsx.exe
Verdict:
Malicious activity
Analysis date:
2022-12-12 10:37:31 UTC
Tags:
agenttesla
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
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
Verdict:
Malicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Creates autostart registry keys with suspicious names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Injuke
Status:
Malicious
First seen:
2022-12-07 23:33:02 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
24 of 40 (60.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 768 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5877519195:AAFJVqwxRiTMU1tnV93kFIe2HJcgmDV6DEw/
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
81f88183029a59901067dd41d3b5fccdfbfc71600c6ac5cc259b83031cdb2b50
MD5 hash:
937fca0634226eed249bb261d7515fb9
SHA1 hash:
4da01756f1dcc825464829670e116a0db32dd43b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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