remcos | abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4ade

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 17:12

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General

Target

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
Size

964KB
MD5

ceb204ea34f5fb871c3d6cb84d6412a0
SHA1

705a6497dfbd6b8b35c0a5dc0d0170f29d1e90d9
SHA256

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4ade
SHA512

cadba3cfa0282953cc729f62cc391d27efd77845b475ca9bf5dad905aa07e89b29bcdf098a85e34b0475871d019b8385b576a022d568f3ef70a05a14c42887e4
SSDEEP

12288:1Cb+eCSmSykDxVpYxfkC/ORUTzNV8y1A3P2quSfIIsVSV2aOoJhqE2gytJXrkR:MCoBxVWx9ORmzAu0PVAfE2gytJXu

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

41.216.183.218:56792

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-I5RS8V
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
1444	powershell.exe
3500	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

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe

description	pid	Process	procid_target
PID 1788 set thread context of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101

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 5 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

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exeabdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exepowershell.exepowershell.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

Processes:

schtasks.exe

pid	Process
4840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exepowershell.exepowershell.exe

pid	Process
1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
1444	powershell.exe
3500	powershell.exe
1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
1444	powershell.exe
3500	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	3500	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe

description	pid	Process	procid_target
PID 1788 wrote to memory of 1444	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	95
PID 1788 wrote to memory of 1444	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	95
PID 1788 wrote to memory of 1444	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	95
PID 1788 wrote to memory of 3500	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	97
PID 1788 wrote to memory of 3500	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	97
PID 1788 wrote to memory of 3500	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	97
PID 1788 wrote to memory of 4840	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	99
PID 1788 wrote to memory of 4840	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	99
PID 1788 wrote to memory of 4840	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	99
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101
PID 1788 wrote to memory of 1312	1788	abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe	101

C:\Users\Admin\AppData\Local\Temp\abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
"C:\Users\Admin\AppData\Local\Temp\abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.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:1788
- 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\abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\upCSTLfHzsQ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3500
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\upCSTLfHzsQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4840
- C:\Users\Admin\AppData\Local\Temp\abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe
  "C:\Users\Admin\AppData\Local\Temp\abdcdab6bbb236063e2e8eeba4c42a18fca87491dd340c90cba6c40c85db4adeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1312

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
54ea422f395ad2937732b71611bb0178

SHA1
6ff538c617b5628d6e4bb9142ace350defe59972

SHA256
e561eafe961aa2180afc7097ffd2c1e5c434f93e6b228a215e8039312f843ddc

SHA512
8b5e2a48ff0702709c3196c40a3736f85551595318c4fe3418f48307cc63285dee2e93399007b0bfe8f24f68457b6aa30365864543c53f9ebd159ea50edad742

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tbb3xlhc.eie.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6E1.tmp

Filesize
1KB

MD5
c56c30b19e96f53e29808a162b057649

SHA1
3b4fc9922ad0e0c35a19693676713b21821a5b9b

SHA256
667435b15d9dd3af5f47a2153be22b093c294b4391fbdaed884f7bcc7ba1402e

SHA512
2b7cf609a6e8e848503c219696c369dc0706f0c26bc6e87675b2bb4c179097529457cd3025baddf12ee5f563f0d0cca15b226d38dd449e5809db9c9a5a33e1a4

Download Submit
memory/1312-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1444-52-0x0000000006390000-0x00000000063AE000-memory.dmp

Filesize
120KB

Download
memory/1444-16-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1444-23-0x0000000005580000-0x00000000055E6000-memory.dmp

Filesize
408KB

Download
memory/1444-34-0x0000000005D60000-0x00000000060B4000-memory.dmp

Filesize
3.3MB

Download
memory/1444-96-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1444-89-0x0000000007A00000-0x0000000007A1A000-memory.dmp

Filesize
104KB

Download
memory/1444-22-0x00000000053E0000-0x0000000005402000-memory.dmp

Filesize
136KB

Download
memory/1444-88-0x0000000007900000-0x0000000007914000-memory.dmp

Filesize
80KB

Download
memory/1444-19-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1444-87-0x00000000078F0000-0x00000000078FE000-memory.dmp

Filesize
56KB

Download
memory/1444-18-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1444-24-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/1444-86-0x00000000078C0000-0x00000000078D1000-memory.dmp

Filesize
68KB

Download
memory/1444-53-0x0000000006430000-0x000000000647C000-memory.dmp

Filesize
304KB

Download
memory/1444-17-0x00000000056A0000-0x0000000005CC8000-memory.dmp

Filesize
6.2MB

Download
memory/1444-15-0x0000000002A80000-0x0000000002AB6000-memory.dmp

Filesize
216KB

Download
memory/1444-85-0x0000000007940000-0x00000000079D6000-memory.dmp

Filesize
600KB

Download
memory/1444-84-0x0000000007730000-0x000000000773A000-memory.dmp

Filesize
40KB

Download
memory/1444-60-0x00000000752F0000-0x000000007533C000-memory.dmp

Filesize
304KB

Download
memory/1444-83-0x0000000007D00000-0x000000000837A000-memory.dmp

Filesize
6.5MB

Download
memory/1444-59-0x0000000007360000-0x0000000007392000-memory.dmp

Filesize
200KB

Download
memory/1788-51-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1788-5-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1788-6-0x00000000054D0000-0x00000000054DA000-memory.dmp

Filesize
40KB

Download
memory/1788-4-0x0000000005590000-0x000000000562C000-memory.dmp

Filesize
624KB

Download
memory/1788-9-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1788-10-0x00000000068B0000-0x0000000006970000-memory.dmp

Filesize
768KB

Download
memory/1788-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1788-7-0x00000000066C0000-0x00000000066DC000-memory.dmp

Filesize
112KB

Download
memory/1788-3-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/1788-2-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/1788-1-0x0000000000A70000-0x0000000000B64000-memory.dmp

Filesize
976KB

Download
memory/1788-8-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/3500-80-0x00000000075B0000-0x00000000075CE000-memory.dmp

Filesize
120KB

Download
memory/3500-90-0x0000000007A30000-0x0000000007A38000-memory.dmp

Filesize
32KB

Download
memory/3500-97-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/3500-82-0x0000000007710000-0x000000000772A000-memory.dmp

Filesize
104KB

Download
memory/3500-81-0x00000000075D0000-0x0000000007673000-memory.dmp

Filesize
652KB

Download
memory/3500-62-0x00000000752F0000-0x000000007533C000-memory.dmp

Filesize
304KB

Download
memory/3500-20-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/3500-36-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/3500-35-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download