remcos | f5d878484d96fbdf0b198da590cf63beed80117f7d7151d9677544da97e462cc

Analysis

max time kernel
150s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/11/2026, 04:29

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General

Target
2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
Size 645KB
Sample261105-e4qlksxsfv
SHA256 f5d878484d96fbdf0b198da590cf63beed80117f7d7151d9677544da97e462cc
MD5 f818f3e907ba137b0217151be121478d
SHA1 5bf70908d0aa9fca69b02f2345f17f8e80ae9f32
SHA512 42cc8bdaa765d7584531c438b3c671c95fdcc5f4499fb357617564a7ba70254500668b46454d0c93d25b59de4e3aea0cae2c7d5d07594f833746337eb19d7d23
SSDEEP 12288:HIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:o5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T169E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

au88 discovery remcos persistence rat suricata

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

au88

gaylife.gr.com:443
abgstore.com.co:443
pg999asia.net:443
jacksclub.co:443
v99win.tv:443
fomo444slot.co:443
mmoo.spot:443
x88.cheap:443
juad888.us:443
anxietyinchildren.co:443
afribus.co:443
luckywin.ski:443
88aa.games:443
fun79i.com:443
luckywin6668.net:443
88aa.link:443
congaden.cc:443
luck888.beer:443
mu88a2.com:443
luck8be.com:443
8kbet1.cc:443
funpunch.in:443
x41t3.buzz:443
8kbetmb.com:443
kent-casino-ury.buzz:443
themoviezflix.in.net:443
toplikes.in:443
8kbet.property:443
8kbeta5.com:443
teatoxlife.in:443
mu88a2.com:80
congaden.cc:80
congaden.cc:8080
mu88a2.com:8080

Attributes

audio_folder
au88
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
App.exe
copy_folder
au88
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
remcos
mouse_option
false
mutex
Rmc-BM4VAA
screenshot_crypt
false
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
338	3108	App.exe
338	3108	App.exe
459	3108	App.exe
459	3108	App.exe
407	3108	App.exe
407	3108	App.exe
657	3108	App.exe
657	3108	App.exe
111	3108	App.exe
111	3108	App.exe
62	3108	App.exe
62	3108	App.exe
180	3108	App.exe
180	3108	App.exe
537	3108	App.exe
537	3108	App.exe
681	3108	App.exe
681	3108	App.exe
665	3108	App.exe
665	3108	App.exe
259	3108	App.exe
259	3108	App.exe
404	3108	App.exe
404	3108	App.exe
698	3108	App.exe
698	3108	App.exe
563	3108	App.exe
563	3108	App.exe
89	3108	App.exe
89	3108	App.exe
172	3108	App.exe
172	3108	App.exe
231	3108	App.exe
231	3108	App.exe
381	3108	App.exe
381	3108	App.exe
680	3108	App.exe
680	3108	App.exe
408	3108	App.exe
408	3108	App.exe
690	3108	App.exe
690	3108	App.exe
660	3108	App.exe
660	3108	App.exe
596	3108	App.exe
596	3108	App.exe
35	3108	App.exe
35	3108	App.exe
23	3108	App.exe
23	3108	App.exe
264	3108	App.exe
264	3108	App.exe
458	3108	App.exe
458	3108	App.exe
483	3108	App.exe
483	3108	App.exe
628	3108	App.exe
628	3108	App.exe
664	3108	App.exe
664	3108	App.exe
218	3108	App.exe
218	3108	App.exe
525	3108	App.exe
525	3108	App.exe

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs

resource	yara_rule
behavioral2/files/0x001300000001c4b9-0.dat	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/files/0x001300000001c4b9-0.dat	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Executes dropped EXE 1 IoCs

pid	Process
3108	App.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-BM4VAA = "\"C:\\ProgramData\\au88\\App.exe\""	App.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-BM4VAA = "\"C:\\ProgramData\\au88\\App.exe\""	App.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-BM4VAA = "\"C:\\ProgramData\\au88\\App.exe\""	2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-BM4VAA = "\"C:\\ProgramData\\au88\\App.exe\""	2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe

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

System Information Discovery
T1082

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.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	App.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	App.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3108	App.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4624	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4624	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3108	App.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3108	App.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3108	App.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4256 wrote to memory of 3108	4256	2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-04_f818f3e907ba137b0217151be121478d_cobalt-strike_coinminer_icedid_njrat_remcos_vidar.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4256
- C:\ProgramData\au88\App.exe
  "C:\ProgramData\au88\App.exe"
  2⤵
  - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
  - 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
  - Suspicious use of SetWindowsHookEx
  PID:3108

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004C4 0x00000000000004C0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4624

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

App.exe

Path C:\ProgramData\au88\App.exe
Size 645KB
SHA256 f5d878484d96fbdf0b198da590cf63beed80117f7d7151d9677544da97e462cc
MD5 f818f3e907ba137b0217151be121478d
SHA1 5bf70908d0aa9fca69b02f2345f17f8e80ae9f32
SHA512 42cc8bdaa765d7584531c438b3c671c95fdcc5f4499fb357617564a7ba70254500668b46454d0c93d25b59de4e3aea0cae2c7d5d07594f833746337eb19d7d23
SSDEEP 12288:HIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:o5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T169E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03E70E9B2F276A16F3AB16
MD5 SHA1 SHA512 SSDEEP TLSH

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logs.dat

Path C:\ProgramData\remcos\logs.dat
Size 208B
SHA256 c31933fd4ee0a5cc17868e4771bcd5b1c3f21bcd5b763c0488e3aa382a83637b
MD5 b753f93f5ccb62bc212b4469a7147e7d
SHA1 fca5bc5edbdb9ba248256ea51bc365822c33cf31
SHA512 73a187cb474d765e5c292115971a9ce095673498805956d93c505c18f436e8419b83281b131f5b2dceec1a14dd72a2b369d5bba481b1f5c718aa31690551fa9d
TLSH
T1C4D0121B3BE110BB7AABD15B91F710367936B5644138844D11E3834C24F25056A01B8F
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads