Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 01:01
Static task
static1
Behavioral task
behavioral1
Sample
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe
Resource
win10v2004-20240426-en
General
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Target
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe
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Size
196KB
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MD5
06f89bea6cec0ee3459c26732c6f4d40
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SHA1
077c773301223d98b07630487facd24710353335
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SHA256
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d
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SHA512
a172753e363467928c9bf700f36865eb53ab5ea85dcbf7bb3fa8bc756f130eacf3ba194f8b25707203b55e8b84a256f756e27a17cce4f81991e9cc2c31353d6b
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SSDEEP
3072:gpFMiA1m+CfRqBpLd0aTUWs+zZl1/eSFZQ0xw5W1LvTFH:gpfqRCfsppZlBvvw5WNRH
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
jahnindustry.shop - Port:
587 - Username:
[email protected] - Password:
WmfkJ55yPdtj - Email To:
[email protected]
Extracted
xworm
5.0
178.215.236.251:717
0AVeWj1eTvHM3Un2
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Install_directory
%AppData%
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install_file
XClient.exe
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telegram
https://api.telegram.org/bot5987023205:AAFlvwKv3zD3wQ2CQAewIB6uU95uBQ25ip0/sendMessage?chat_id=5202962680
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4400-9813-0x0000000000400000-0x0000000000412000-memory.dmp family_xworm -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe -
Drops startup file 2 IoCs
Processes:
RegAsm.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk RegAsm.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk RegAsm.exe -
Executes dropped EXE 1 IoCs
Processes:
Pdmyfgbmmsc.exepid process 928 Pdmyfgbmmsc.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exePdmyfgbmmsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Findo = "C:\\Users\\Admin\\AppData\\Roaming\\Findo.exe" 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Findo = "C:\\Users\\Admin\\AppData\\Roaming\\Findo.exe" Pdmyfgbmmsc.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 22 api.ipify.org 23 api.ipify.org -
Suspicious use of SetThreadContext 2 IoCs
Processes:
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exePdmyfgbmmsc.exedescription pid process target process PID 1348 set thread context of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 928 set thread context of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
RegAsm.exeRegAsm.exepid process 3308 RegAsm.exe 3308 RegAsm.exe 4400 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exePdmyfgbmmsc.exeRegAsm.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Token: SeDebugPrivilege 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Token: SeDebugPrivilege 928 Pdmyfgbmmsc.exe Token: SeDebugPrivilege 3308 RegAsm.exe Token: SeDebugPrivilege 928 Pdmyfgbmmsc.exe Token: SeDebugPrivilege 4400 RegAsm.exe Token: SeDebugPrivilege 4400 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 4400 RegAsm.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exePdmyfgbmmsc.exedescription pid process target process PID 1348 wrote to memory of 928 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Pdmyfgbmmsc.exe PID 1348 wrote to memory of 928 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Pdmyfgbmmsc.exe PID 1348 wrote to memory of 928 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe Pdmyfgbmmsc.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 1348 wrote to memory of 3308 1348 71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe PID 928 wrote to memory of 4400 928 Pdmyfgbmmsc.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe"C:\Users\Admin\AppData\Local\Temp\71540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Users\Admin\AppData\Local\Temp\Pdmyfgbmmsc.exe"C:\Users\Admin\AppData\Local\Temp\Pdmyfgbmmsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:928 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4400
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3308
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
195KB
MD5f3578e8755842b11168c9cfe8d72f51e
SHA15973e517739c944d5e1e269f399e7bebf33fd172
SHA2562376cb21ed4b8e05774a49512f21e1f4d3ca960df5d74865786774d000481f5b
SHA51248b2ed8fe52bdf97d5be0d8ea75c1e4243ee2e282240041e7b7715db8dad4c5d3457a270d4b4b006b56a0641b839e54a24a879ddb4526e5e961d8700829d3a29
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Filesize
196KB
MD506f89bea6cec0ee3459c26732c6f4d40
SHA1077c773301223d98b07630487facd24710353335
SHA25671540af9f3dd877a91cd506fb2efb0ebb4211c4370c8edb74185a5b9554bb66d
SHA512a172753e363467928c9bf700f36865eb53ab5ea85dcbf7bb3fa8bc756f130eacf3ba194f8b25707203b55e8b84a256f756e27a17cce4f81991e9cc2c31353d6b