remcos | 9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969

Analysis

max time kernel
150s
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
05-12-2024 17:57

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General

Target

9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
Size

998KB
MD5

be9d3be706b969e50ed34ee2de1d0211
SHA1

bfb87c1fab93ec80c0cd56620f447fa00e59a47a
SHA256

9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969
SHA512

33dd0b89b784026b25d111fdf067d623cef07f00b6eba0e456cdfa9c59b2cb3134dacead18f6cec253ec393c6ddda8d8b8911edba1a3dd91541a88358d3f3875
SSDEEP

24576:RoUQcYoPrA5P1hsPZc85fBHPQpGir7ubrBojoFaO2jqhpuOmq:r41YiYZEnqrnr2jqvu8

Score

10^/10

remcos 76485 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

76485

windowsocttehe.duckdns.org:52411

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
764-0XPV9J
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

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
4028	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95

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 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.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
1624	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
4028	powershell.exe
4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
4028	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
Token: SeDebugPrivilege	4028	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 4028	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	90
PID 4460 wrote to memory of 4028	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	90
PID 4460 wrote to memory of 4028	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	90
PID 4460 wrote to memory of 1624	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	92
PID 4460 wrote to memory of 1624	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	92
PID 4460 wrote to memory of 1624	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	92
PID 4460 wrote to memory of 868	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	94
PID 4460 wrote to memory of 868	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	94
PID 4460 wrote to memory of 868	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	94
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95
PID 4460 wrote to memory of 4680	4460	9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe	95

C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
"C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.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:4460
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zQjnGjUb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4028
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zQjnGjUb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD15A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1624
- C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
  "C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe"
  2⤵
  PID:868
- C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe
  "C:\Users\Admin\AppData\Local\Temp\9c28e36405c311ffb063f1afa6f478d18923101078d042d3bfc6148475b34969.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4680

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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_ic0r4mrb.t5q.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD15A.tmp

Filesize
1KB

MD5
f4e066dcf83ef5ac3416c71d7adbddb0

SHA1
f215b75a83a80708109387ee877f1de2e2d8f32d

SHA256
5cbfe82bdc77b40c31481da53f323be4fced4a9ef2f7c0b91c69c96a91ea9b40

SHA512
a74011f5c1d5688142cd529cac93acf24221d19a98fc62b3924495287cb26740cf301616e5576c74f6dafdca16b124975981cf084938cbfd456e346426347662

Download Submit
memory/4028-22-0x0000000005050000-0x00000000050B6000-memory.dmp

Filesize
408KB

Download
memory/4028-59-0x0000000007280000-0x000000000728A000-memory.dmp

Filesize
40KB

Download
memory/4028-20-0x0000000004F40000-0x0000000004F62000-memory.dmp

Filesize
136KB

Download
memory/4028-60-0x0000000007490000-0x0000000007526000-memory.dmp

Filesize
600KB

Download
memory/4028-28-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4028-58-0x0000000007210000-0x000000000722A000-memory.dmp

Filesize
104KB

Download
memory/4028-57-0x0000000007850000-0x0000000007ECA000-memory.dmp

Filesize
6.5MB

Download
memory/4028-29-0x00000000058C0000-0x0000000005C14000-memory.dmp

Filesize
3.3MB

Download
memory/4028-56-0x0000000006F00000-0x0000000006FA3000-memory.dmp

Filesize
652KB

Download
memory/4028-21-0x0000000004FE0000-0x0000000005046000-memory.dmp

Filesize
408KB

Download
memory/4028-63-0x0000000007450000-0x0000000007464000-memory.dmp

Filesize
80KB

Download
memory/4028-16-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4028-19-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4028-17-0x0000000005110000-0x0000000005738000-memory.dmp

Filesize
6.2MB

Download
memory/4028-61-0x0000000007410000-0x0000000007421000-memory.dmp

Filesize
68KB

Download
memory/4028-55-0x00000000064A0000-0x00000000064BE000-memory.dmp

Filesize
120KB

Download
memory/4028-44-0x0000000006EC0000-0x0000000006EF2000-memory.dmp

Filesize
200KB

Download
memory/4028-45-0x0000000074F10000-0x0000000074F5C000-memory.dmp

Filesize
304KB

Download
memory/4028-62-0x0000000007440000-0x000000000744E000-memory.dmp

Filesize
56KB

Download
memory/4028-42-0x0000000006440000-0x000000000648C000-memory.dmp

Filesize
304KB

Download
memory/4028-15-0x00000000025E0000-0x0000000002616000-memory.dmp

Filesize
216KB

Download
memory/4028-40-0x0000000005EF0000-0x0000000005F0E000-memory.dmp

Filesize
120KB

Download
memory/4028-69-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4028-65-0x0000000007530000-0x0000000007538000-memory.dmp

Filesize
32KB

Download
memory/4028-64-0x0000000007550000-0x000000000756A000-memory.dmp

Filesize
104KB

Download
memory/4460-4-0x0000000002D40000-0x0000000002D4A000-memory.dmp

Filesize
40KB

Download
memory/4460-39-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4460-10-0x000000000CB30000-0x000000000CBCC000-memory.dmp

Filesize
624KB

Download
memory/4460-9-0x000000000AA70000-0x000000000AB2E000-memory.dmp

Filesize
760KB

Download
memory/4460-8-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4460-7-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4460-6-0x0000000005690000-0x00000000056AE000-memory.dmp

Filesize
120KB

Download
memory/4460-5-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4460-3-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/4460-2-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/4460-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/4460-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4680-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-86-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-89-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-90-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-91-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-93-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-110-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-111-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-112-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-116-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-117-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-118-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-119-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-120-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-121-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-122-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-123-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-124-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-125-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-126-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4680-127-0x0000000000400000-0x000000000047F000-memory.dmp

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508KB

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