remcos | 9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 02:46

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General

Target

9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
Size

959KB
MD5

6af2749e008b69261fb3221532e5e96e
SHA1

2ea58ea333f9de3455770c9da3047fe4e0d2bb73
SHA256

9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d
SHA512

e2edd970640102a258d18bd286c2c82139ac3e817eb0c25fa6f83548826f6e5b6624dc65d19acac13c4a424032d08bbd94bb88f827995371c04500cb1c2057da
SSDEEP

24576:0dFeeZbrWi6BoUgSjSxz6K511VRB1jubSogLgaIKkQM8B:Uzbmtj4v511VRB1ybSHLUjK

Score

10^/10

remcos remcohost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemcoHost

173.211.106.233:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-4WOIVV
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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
2128	powershell.exe

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1688	4860	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 3 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
2128	powershell.exe
2128	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
Token: SeDebugPrivilege	2128	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 2128	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	86
PID 4860 wrote to memory of 2128	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	86
PID 4860 wrote to memory of 2128	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	86
PID 4860 wrote to memory of 2956	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	88
PID 4860 wrote to memory of 2956	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	88
PID 4860 wrote to memory of 2956	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	88
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89
PID 4860 wrote to memory of 220	4860	9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe	89

C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
"C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2128
- C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
  "C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe"
  2⤵
  PID:2956
- C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe
  "C:\Users\Admin\AppData\Local\Temp\9516599f449a283c1863a45d1c95433aa769fd86d49058ca861e37a1f758831d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1180
  2⤵
  - Program crash
  PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4860 -ip 4860
1⤵
PID:4636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rt5ueiji.i44.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/220-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/220-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2128-38-0x0000000006DE0000-0x0000000006E12000-memory.dmp

Filesize
200KB

Download
memory/2128-57-0x00000000073B0000-0x0000000007446000-memory.dmp

Filesize
600KB

Download
memory/2128-24-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/2128-21-0x0000000004F70000-0x0000000005598000-memory.dmp

Filesize
6.2MB

Download
memory/2128-23-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/2128-34-0x00000000057E0000-0x0000000005B34000-memory.dmp

Filesize
3.3MB

Download
memory/2128-35-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

Filesize
120KB

Download
memory/2128-36-0x0000000005E20000-0x0000000005E6C000-memory.dmp

Filesize
304KB

Download
memory/2128-18-0x00000000024E0000-0x0000000002516000-memory.dmp

Filesize
216KB

Download
memory/2128-20-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2128-51-0x0000000007020000-0x00000000070C3000-memory.dmp

Filesize
652KB

Download
memory/2128-50-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2128-52-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2128-53-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2128-49-0x00000000063D0000-0x00000000063EE000-memory.dmp

Filesize
120KB

Download
memory/2128-39-0x000000006EBE0000-0x000000006EC2C000-memory.dmp

Filesize
304KB

Download
memory/2128-54-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/2128-55-0x0000000007130000-0x000000000714A000-memory.dmp

Filesize
104KB

Download
memory/2128-56-0x00000000071A0000-0x00000000071AA000-memory.dmp

Filesize
40KB

Download
memory/2128-22-0x0000000004F40000-0x0000000004F62000-memory.dmp

Filesize
136KB

Download
memory/2128-58-0x0000000007330000-0x0000000007341000-memory.dmp

Filesize
68KB

Download
memory/2128-59-0x0000000007360000-0x000000000736E000-memory.dmp

Filesize
56KB

Download
memory/2128-60-0x0000000007370000-0x0000000007384000-memory.dmp

Filesize
80KB

Download
memory/2128-61-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/2128-62-0x0000000007450000-0x0000000007458000-memory.dmp

Filesize
32KB

Download
memory/2128-65-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2128-16-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/4860-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/4860-37-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4860-10-0x00000000065C0000-0x0000000006684000-memory.dmp

Filesize
784KB

Download
memory/4860-9-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4860-8-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/4860-7-0x0000000004F20000-0x0000000004F34000-memory.dmp

Filesize
80KB

Download
memory/4860-6-0x0000000004E70000-0x0000000004F0C000-memory.dmp

Filesize
624KB

Download
memory/4860-4-0x0000000004DC0000-0x0000000004DCA000-memory.dmp

Filesize
40KB

Download
memory/4860-5-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4860-3-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/4860-2-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4860-1-0x0000000000130000-0x0000000000226000-memory.dmp

Filesize
984KB

Download