remcos | 88e970a35b8d171e11700805ead2a551578d82eab45b401f65593f7f70aec763

Analysis

max time kernel
144s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 06:51

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General

Target
96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe
Size 135KB
Sample240519-hmh2ysfb8s
SHA256 88e970a35b8d171e11700805ead2a551578d82eab45b401f65593f7f70aec763
MD5 96cb9d36d8de22e7b04fac143016e350
SHA1 44f5f396193c51fe6aafc965b932035d426b04fe
SHA512 f2ab3e10e493e907c72f1b10a516c986d0d8962a335c3048a07f9890e2a26ab49d3e7a6294200e120d56cb510cf3ebb3f634c14a3e16fb0a38e050b67f523a56
SSDEEP 1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKl:xPd4n/M+WLcilrpgGH/GwY87mVmIXV
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos host persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

systemcontrol.ddns.net:45000
systemcontrol2.ddns.net:45000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
OfficeUpgrade.exe
copy_folder
OfficeUpgrade
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
Upgrader.dat
keylog_flag
false
keylog_folder
Upgrader
keylog_path
%AppData%
mouse_option
false
mutex
req_khauflaoyr
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
OfficeUpgrade
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe

Executes dropped EXE 2 IoCs

pid	Process
4612	wn2ra4ohzdr.exe
4416	wn2ra4ohzdr.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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\raj4dkhhiap = "C:\\Users\\Admin\\AppData\\Roaming\\raj4dkhhiap\\wn2ra4ohzdr.exe"	96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4612 set thread context of 4416	4612	wn2ra4ohzdr.exe	82

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4416	wn2ra4ohzdr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 4612	5024	96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe	81
PID 5024 wrote to memory of 4612	5024	96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe	81
PID 5024 wrote to memory of 4612	5024	96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe	81
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82
PID 4612 wrote to memory of 4416	4612	wn2ra4ohzdr.exe	82

C:\Users\Admin\AppData\Local\Temp\96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\96cb9d36d8de22e7b04fac143016e350_NeikiAnalytics.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
  "C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
    "C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4416

Network

MITRE ATT&CK Enterprise v15

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

wn2ra4ohzdr.exe

Path C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
Size 135KB
SHA256 d8459838812a6f24b2c1de2ce1155bb4625782c60bb8dba4298c918659683b6e
MD5 c6c55b01e028fc5d5065c03caf4b0f9f
SHA1 ca4bb9e323078a0e89979fb3dd7ac5c7ab17a263
SHA512 076aaa23fd99fe3d09f870d7fd44c1da2c0ef4973ec5b3db1e3f3223c3d436264ac59e7fd75188f3907398cd98126da1ad69df0d9725e6bcfc418c7c23d12afd
SSDEEP 1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKi:xPd4n/M+WLcilrpgGH/GwY87mVmIXS
MD5 SHA1 SHA512 SSDEEP

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memory/4416-31-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4416-30-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4416-25-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4416-24-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4416-26-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4416-23-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4612-22-0x0000000074730000-0x0000000074EE0000-memory.dmp

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memory/4612-35-0x0000000074730000-0x0000000074EE0000-memory.dmp

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memory/4612-21-0x0000000074730000-0x0000000074EE0000-memory.dmp

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memory/5024-4-0x0000000005180000-0x000000000518A000-memory.dmp

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memory/5024-20-0x0000000074730000-0x0000000074EE0000-memory.dmp

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memory/5024-6-0x0000000005510000-0x0000000005530000-memory.dmp

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memory/5024-5-0x0000000074730000-0x0000000074EE0000-memory.dmp

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memory/5024-0-0x000000007473E000-0x000000007473F000-memory.dmp

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memory/5024-3-0x0000000005190000-0x0000000005222000-memory.dmp

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memory/5024-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

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memory/5024-1-0x0000000000790000-0x00000000007B8000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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