remcos | cefa523cb435720c81c933c07f02f2c3f09979228b8d6a43309724892f335ee0

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2023, 12:58

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General

Target

PO350.exe
Size

994KB
MD5

8ba1b9dc62b3e8a9f8497a3d9e7eb015
SHA1

5b50af2c3a45c6a91836bd4010cc3ea561d90114
SHA256

5ad0bc2bae216bee7b9516d71f673ae773f7467eac446b0f44d963d5af5d574e
SHA512

6e00cda3a3e10105e525e0fe8dd9764cba72c4ce3ac393b61d499706db854d65967cd628970b4f38db6b93086dd62ed3e4869efc900151b2ccf2d0e4a886b375
SSDEEP

24576:lTfX1FUHIzmPkc/kvP3g6TP5ZOyYg3Cnp6B1c:lT/jUozKkUkvvHL3upOc

Score

10^/10

remcos throttle rat

Malware Config

Extracted

Family

remcos

Botnet

throttle

141.98.6.9:7044

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
Rmc-LCB1D9
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

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-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	PO350.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 5080	2040	PO350.exe	105

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2040	PO350.exe
2464	powershell.exe
2464	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	PO350.exe
Token: SeDebugPrivilege	2464	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2464	2040	PO350.exe	101
PID 2040 wrote to memory of 2464	2040	PO350.exe	101
PID 2040 wrote to memory of 2464	2040	PO350.exe	101
PID 2040 wrote to memory of 3992	2040	PO350.exe	103
PID 2040 wrote to memory of 3992	2040	PO350.exe	103
PID 2040 wrote to memory of 3992	2040	PO350.exe	103
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105
PID 2040 wrote to memory of 5080	2040	PO350.exe	105

C:\Users\Admin\AppData\Local\Temp\PO350.exe
"C:\Users\Admin\AppData\Local\Temp\PO350.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TRNAhcmuJQEKe.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2464
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TRNAhcmuJQEKe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5436.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3992
- C:\Users\Admin\AppData\Local\Temp\PO350.exe
  "C:\Users\Admin\AppData\Local\Temp\PO350.exe"
  2⤵
  PID:5080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ynkzvs40.zza.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5436.tmp

Filesize
1KB

MD5
bb902905c00a1ffff775643b69275720

SHA1
d11f8215ea599219a8c45f27181472a50e0830cd

SHA256
d86cdfbb26a3114f3a20863357cb9a6eb6e8caafae9a3b6d4a04f1abf9f6d25a

SHA512
7382bb4e46ced255832535f40ef311c321c50260d574ced6bf1235a33c5aea33e3e174f0cc2c0d184e93de4d843e7e727db72a69125778a18ae44d4062e685b5

Download Submit
memory/2040-0-0x0000000000EB0000-0x0000000000FAE000-memory.dmp

Filesize
1016KB

Download
memory/2040-1-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2040-2-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/2040-3-0x0000000005A10000-0x0000000005AA2000-memory.dmp

Filesize
584KB

Download
memory/2040-4-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2040-5-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/2040-6-0x0000000005B40000-0x0000000005B58000-memory.dmp

Filesize
96KB

Download
memory/2040-7-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2040-8-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2040-9-0x0000000006E10000-0x0000000006E1A000-memory.dmp

Filesize
40KB

Download
memory/2040-10-0x00000000082A0000-0x0000000008358000-memory.dmp

Filesize
736KB

Download
memory/2040-11-0x0000000008400000-0x000000000849C000-memory.dmp

Filesize
624KB

Download
memory/2040-30-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2464-42-0x0000000005F40000-0x0000000006294000-memory.dmp

Filesize
3.3MB

Download
memory/2464-51-0x00000000075F0000-0x0000000007622000-memory.dmp

Filesize
200KB

Download
memory/2464-18-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/2464-19-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/2464-23-0x00000000054D0000-0x0000000005AF8000-memory.dmp

Filesize
6.2MB

Download
memory/2464-29-0x0000000005450000-0x0000000005472000-memory.dmp

Filesize
136KB

Download
memory/2464-78-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2464-75-0x0000000007A50000-0x0000000007A58000-memory.dmp

Filesize
32KB

Download
memory/2464-74-0x0000000007A70000-0x0000000007A8A000-memory.dmp

Filesize
104KB

Download
memory/2464-73-0x0000000007970000-0x0000000007984000-memory.dmp

Filesize
80KB

Download
memory/2464-72-0x0000000007960000-0x000000000796E000-memory.dmp

Filesize
56KB

Download
memory/2464-31-0x0000000005CB0000-0x0000000005D16000-memory.dmp

Filesize
408KB

Download
memory/2464-37-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download
memory/2464-17-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2464-71-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/2464-70-0x0000000007930000-0x0000000007941000-memory.dmp

Filesize
68KB

Download
memory/2464-69-0x00000000079B0000-0x0000000007A46000-memory.dmp

Filesize
600KB

Download
memory/2464-46-0x0000000005170000-0x000000000518E000-memory.dmp

Filesize
120KB

Download
memory/2464-47-0x00000000064D0000-0x000000000651C000-memory.dmp

Filesize
304KB

Download
memory/2464-50-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/2464-52-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2464-16-0x0000000004E60000-0x0000000004E96000-memory.dmp

Filesize
216KB

Download
memory/2464-53-0x000000007EF20000-0x000000007EF30000-memory.dmp

Filesize
64KB

Download
memory/2464-54-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

Filesize
304KB

Download
memory/2464-64-0x00000000069E0000-0x00000000069FE000-memory.dmp

Filesize
120KB

Download
memory/2464-65-0x0000000007630000-0x00000000076D3000-memory.dmp

Filesize
652KB

Download
memory/2464-66-0x0000000007D80000-0x00000000083FA000-memory.dmp

Filesize
6.5MB

Download
memory/2464-67-0x0000000007730000-0x000000000774A000-memory.dmp

Filesize
104KB

Download
memory/2464-68-0x00000000077B0000-0x00000000077BA000-memory.dmp

Filesize
40KB

Download
memory/5080-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5080-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download