agenttesla | 02a113310c4b7d8b1b47afeff0f4df059d212400b29edba2b0e5754dd4748289

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
12/02/2025, 12:58

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General

Target

Bukti_Transfer...WU.exe
Size

1.0MB
MD5

e48ca032affdeea3ee88874ed39c4dcd
SHA1

ca3e925e87dc3bc5bd1878bc9d74cd709d7a9622
SHA256

21224cc236d63c5d3d7d3f80be375d3c2408f7a91b08eb6a16d70c7db21106d9
SHA512

4a727c97e2af20c296f01f89953fc20908d628cc97c4fa372d15d003427c5f0e2b2146d214df4a22b8b62fb46f121df0021cb18056bfba6c7ec824c892b3da53
SSDEEP

24576:D+wIZTFg2BK8sgD08CwrjYFMIzsBk6tkAfiRN+BU:D+wIZTOBRgDhnY2M6tV6RND

Score

10^/10

agenttesla remcos feb 09 collection discovery execution keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

remcos

Botnet

FEB 09

oktoviyanto.ddns.net:9373

103.186.117.61:9373

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-Z2L02T
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Extracted

Family

agenttesla

https://api.telegram.org/bot5612460560:AAHyXkizBwpknHBFsEt3GDIwhLylabAVwjM/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2160	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	dwn.exe

Loads dropped DLL 1 IoCs

pid	Process
2844	Bukti_Transfer...WU.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dwn.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dwn.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dwn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\mykksg = "C:\\Users\\Admin\\AppData\\Roaming\\mykksg\\mykksg.exe"	dwn.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.

flow	ioc
12	api.ipify.org
13	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1740 set thread context of 2844	1740	Bukti_Transfer...WU.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bukti_Transfer...WU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bukti_Transfer...WU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dwn.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1740	Bukti_Transfer...WU.exe
1740	Bukti_Transfer...WU.exe
2160	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	Bukti_Transfer...WU.exe
Token: SeDebugPrivilege	2160	powershell.exe
Token: SeDebugPrivilege	2740	dwn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2844	Bukti_Transfer...WU.exe
2740	dwn.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2160	1740	Bukti_Transfer...WU.exe	30
PID 1740 wrote to memory of 2160	1740	Bukti_Transfer...WU.exe	30
PID 1740 wrote to memory of 2160	1740	Bukti_Transfer...WU.exe	30
PID 1740 wrote to memory of 2160	1740	Bukti_Transfer...WU.exe	30
PID 1740 wrote to memory of 2960	1740	Bukti_Transfer...WU.exe	32
PID 1740 wrote to memory of 2960	1740	Bukti_Transfer...WU.exe	32
PID 1740 wrote to memory of 2960	1740	Bukti_Transfer...WU.exe	32
PID 1740 wrote to memory of 2960	1740	Bukti_Transfer...WU.exe	32
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 1740 wrote to memory of 2844	1740	Bukti_Transfer...WU.exe	34
PID 2844 wrote to memory of 2740	2844	Bukti_Transfer...WU.exe	36
PID 2844 wrote to memory of 2740	2844	Bukti_Transfer...WU.exe	36
PID 2844 wrote to memory of 2740	2844	Bukti_Transfer...WU.exe	36
PID 2844 wrote to memory of 2740	2844	Bukti_Transfer...WU.exe	36

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dwn.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dwn.exe

C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer...WU.exe
"C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer...WU.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cxLZERvGna.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2160
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cxLZERvGna" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE8C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2960
- C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer...WU.exe
  "C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer...WU.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Users\Admin\AppData\Local\Temp\dwn.exe
    "C:\Users\Admin\AppData\Local\Temp\dwn.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
89e79694b1dcbc7c22edf5e894398b52

SHA1
4d21efa2d170c9cc062163ace4432c6bc327d3d0

SHA256
fe99bc5bf0907f91f7128d4a9f6b922ad4d5a40261bdda803601de2074e430ed

SHA512
7b8f2520cd1bd20b7737bed315d4b95eb378f52e5d8703d041116114fb633b849fc12397392aca62c913300c6838b3e1ae595931cded9a5fe364d0392a5941c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwn.exe

Filesize
169KB

MD5
accfb066306c95fea0ed42dc99df1634

SHA1
62388a3475c431ab70037b54b4e86caf61bbb55c

SHA256
e6720928ea03235a4a2ae2183d8e82483eab11c5d77ec554ca3d85cc69d244b2

SHA512
f31c70abb5faae8ae361c19ffcb96d83c4fb21e092119c60073a81e0a2400a17bb1bce0481263ff1275b63f3e86659779bbdca406970fc95c4118e5810405296

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDE8C.tmp

Filesize
1KB

MD5
f674fbddfb4069d528f915bb542e201a

SHA1
1bd29ca136cc1ee603157d7566348c532101b081

SHA256
c9c7bb5f096675f9ea283352d57b4eeaa3a09d80486a520a2f681b1ceafd24de

SHA512
249689e29691365e2755df39be68ca26d9a20ece1933d18070d403937b71b34ee6b6de097ad31c3bc91db47995418018c14bf0a4149851e263d0a48f1649b93c

Download Submit
memory/1740-38-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1740-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/1740-5-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1740-6-0x0000000000980000-0x0000000000A40000-memory.dmp

Filesize
768KB

Download
memory/1740-3-0x00000000008F0000-0x000000000090E000-memory.dmp

Filesize
120KB

Download
memory/1740-1-0x0000000000F00000-0x000000000100C000-memory.dmp

Filesize
1.0MB

Download
memory/1740-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1740-4-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2740-54-0x0000000000E80000-0x0000000000EB0000-memory.dmp

Filesize
192KB

Download
memory/2844-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-89-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download