Analysis
- max time kernel
149s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/09/2026, 05:58
Behavioral task
behavioral1
Sample
au88.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
au88.exe
Resource
win11ltsc2024-20260911-en
windows11-ltsc_2024-x64
12 signatures
150 seconds
General
- Target au88.exe
- Size 645KB
- Sample260930-gpab6ayw8l
- SHA256 a2a6ffdd68dfc2ccef3f997496d9d74ef6a20957bf58bdc9cc4249c209eb980c
- MD5 dcd0fe0db212c390ca842350e680185d
- SHA1 3cd5389b77e774cddb4fc57506bd5c1fc116bb33
- SHA512 dd6ea4ee5cfd21da6ac7870dce452f96932085634014bce184f795640f3ed7ac9009e42037d88c84870ef57ca2eb912e897fe429fbd791efdf73d154ebdc5e99
- SSDEEP 12288:FIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:a5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
- TLSH T133E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Extracted
Family
-
remcos
Version
-
7.3.1 Pro
Botnet
-
RemoteHost
C2
-
tsntxe2.buzz:8080
Attributes
-
audio_folder
MicRecords
-
audio_path
%Temp%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
okvip.exe
-
copy_folder
okvip
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
okvip
-
mouse_option
false
-
mutex
RemcosFocus-AHF4OB
-
screenshot_crypt
false
-
screenshot_flag
true
-
screenshot_folder
Screenshots
-
screenshot_path
%SystemDrive%
-
screenshot_time
5
- startup_value
-
take_screenshot_option
true
-
take_screenshot_time
5
-
take_screenshot_title
chrome;discord;facebook;telegram;whatsapp;youtube;instagram;tiktok;spotify;netflix;zoom;teams;slack;steam;vlc;coccoc
Signatures
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs
Network activity triggered a Suricata alert
flow pid Process 298 3996 okvip.exe 298 3996 okvip.exe 135 3996 okvip.exe 135 3996 okvip.exe 449 3996 okvip.exe 449 3996 okvip.exe 153 3996 okvip.exe 153 3996 okvip.exe 101 3996 okvip.exe 101 3996 okvip.exe 105 3996 okvip.exe 105 3996 okvip.exe 245 3996 okvip.exe 245 3996 okvip.exe 397 3996 okvip.exe 397 3996 okvip.exe 273 3996 okvip.exe 273 3996 okvip.exe 93 3996 okvip.exe 93 3996 okvip.exe 270 3996 okvip.exe 270 3996 okvip.exe 263 3996 okvip.exe 263 3996 okvip.exe 20 3996 okvip.exe 20 3996 okvip.exe 31 3996 okvip.exe 31 3996 okvip.exe 52 3996 okvip.exe 52 3996 okvip.exe 137 3996 okvip.exe 137 3996 okvip.exe 108 3996 okvip.exe 108 3996 okvip.exe 435 3996 okvip.exe 435 3996 okvip.exe 372 3996 okvip.exe 372 3996 okvip.exe 19 3996 okvip.exe 19 3996 okvip.exe 132 3996 okvip.exe 132 3996 okvip.exe 229 3996 okvip.exe 229 3996 okvip.exe 209 3996 okvip.exe 209 3996 okvip.exe 157 3996 okvip.exe 157 3996 okvip.exe 180 3996 okvip.exe 180 3996 okvip.exe 226 3996 okvip.exe 226 3996 okvip.exe 358 3996 okvip.exe 358 3996 okvip.exe 370 3996 okvip.exe 370 3996 okvip.exe 462 3996 okvip.exe 462 3996 okvip.exe 430 3996 okvip.exe 430 3996 okvip.exe 444 3996 okvip.exe 444 3996 okvip.exe 34 3996 okvip.exe 34 3996 okvip.exe - Adds policy Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ au88.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" au88.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ okvip.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" okvip.exe - Executes dropped EXE 1 IoCs
pid Process 3996 okvip.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" au88.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" au88.exe Set value (str) \REGISTRY\USER\S-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" okvip.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RemcosFocus-AHF4OB = "\"C:\\ProgramData\\okvip\\okvip.exe\"" okvip.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname okvip.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain okvip.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3996 okvip.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 3084 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3084 AUDIODG.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3996 okvip.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3996 okvip.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 960 wrote to memory of 3996 960 au88.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\au88.exe"C:\Users\Admin\AppData\Local\Temp\au88.exe"1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:960 -
C:\ProgramData\okvip\okvip.exe"C:\ProgramData\okvip\okvip.exe"2⤵
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication
- Adds policy Run key to start application
- Executes dropped EXE
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3996
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x00000000000004E8 0x00000000000004E01⤵
- Suspicious use of AdjustPrivilegeToken
PID:3084
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:5652
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\ProgramData\okvip\okvip.exe
- Size 645KB
- SHA256 a2a6ffdd68dfc2ccef3f997496d9d74ef6a20957bf58bdc9cc4249c209eb980c
- MD5 dcd0fe0db212c390ca842350e680185d
- SHA1 3cd5389b77e774cddb4fc57506bd5c1fc116bb33
- SHA512 dd6ea4ee5cfd21da6ac7870dce452f96932085634014bce184f795640f3ed7ac9009e42037d88c84870ef57ca2eb912e897fe429fbd791efdf73d154ebdc5e99
- SSDEEP 12288:FIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:a5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
- TLSH T133E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
- MD5 SHA1 SHA512 SSDEEP TLSH