remcos | ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 02:28

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General

Target

ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe
Size

896KB
MD5

64219e1931808919fd05dcfb458dfc25
SHA1

6adb1561418be08ccaa2e448166bc36673ec60c5
SHA256

ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c
SHA512

9ce694eaf780a4d255e328f527df78c949a5c54b5ab0ba46c9800fd326e9ab0c29eec331a1bc8a8592c159c99fcd69d165baf4ab0d09b2d5ca6540f0e5bd527c
SSDEEP

24576:12n4ze7gcvBx2mYa7sJw3+NHNQA6zqvkiINLYnTI:14gcvL2mT7sJw386pqvkiINc

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1
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

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

pid	Process
2396	powershell.exe
60	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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4704 set thread context of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.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
2332	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2396	powershell.exe
2396	powershell.exe
60	powershell.exe
60	powershell.exe
2396	powershell.exe
60	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	60	powershell.exe
Token: SeDebugPrivilege	2396	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2396	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	99
PID 4704 wrote to memory of 2396	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	99
PID 4704 wrote to memory of 2396	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	99
PID 4704 wrote to memory of 60	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	101
PID 4704 wrote to memory of 60	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	101
PID 4704 wrote to memory of 60	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	101
PID 4704 wrote to memory of 2332	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	103
PID 4704 wrote to memory of 2332	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	103
PID 4704 wrote to memory of 2332	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	103
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105
PID 4704 wrote to memory of 2360	4704	ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe	105

C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe
"C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- 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\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2396
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZRuVeAoBoxootS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:60
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZRuVeAoBoxootS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1D0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2332
- C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe
  "C:\Users\Admin\AppData\Local\Temp\ceebb7ca5adbb69127cbf5205e49840c4846cb46e4c5ac568557e7bdf9fe315c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4288 /prefetch:8
1⤵
PID:5096

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\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
ebda98c4dcda29b7c41443293b0968f0

SHA1
0ebc13955a7463c283fa1d2b3e1843e7543882dd

SHA256
a9a38eb5f16c1912d9aeda07b47631e4835e6cbacd92ca3492d9cba0e0e2e027

SHA512
4d612b224c2ec42636cc2c5965a3094aaa886859b255d17028a7ba5100e059a5fadb6e1766006969e9911871814f1eae79ad76c0155066ed3b18525c089543a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v1oluaeq.xor.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE1D0.tmp

Filesize
1KB

MD5
53a4f35ec6cd203c7edacaa621abf198

SHA1
2c970f5974a77d7f3c32c1915e24926e0f81d272

SHA256
79ba915aa9e46f1b7ed798beaf18622b06bbaac8d3549ad24d048000082cca62

SHA512
8297e3f6c786fcf671fb7f50e0e7f34504c9c41265364f372384d784170f886d9a8df020c5c91c8cf39b9af835c2c09b9a380db8af0d5379ece4a00b7dd4e5dc

Download Submit
memory/60-89-0x0000000007590000-0x00000000075AA000-memory.dmp

Filesize
104KB

Download
memory/60-55-0x000000006FBC0000-0x000000006FC0C000-memory.dmp

Filesize
304KB

Download
memory/60-87-0x0000000007550000-0x0000000007564000-memory.dmp

Filesize
80KB

Download
memory/60-86-0x0000000007480000-0x000000000748E000-memory.dmp

Filesize
56KB

Download
memory/60-83-0x0000000007430000-0x0000000007441000-memory.dmp

Filesize
68KB

Download
memory/60-82-0x00000000074B0000-0x0000000007546000-memory.dmp

Filesize
600KB

Download
memory/60-80-0x00000000072A0000-0x00000000072AA000-memory.dmp

Filesize
40KB

Download
memory/60-78-0x0000000007870000-0x0000000007EEA000-memory.dmp

Filesize
6.5MB

Download
memory/60-79-0x0000000007230000-0x000000000724A000-memory.dmp

Filesize
104KB

Download
memory/60-90-0x0000000007570000-0x0000000007578000-memory.dmp

Filesize
32KB

Download
memory/60-65-0x00000000070C0000-0x00000000070DE000-memory.dmp

Filesize
120KB

Download
memory/60-96-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/60-20-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/60-22-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/60-66-0x00000000070F0000-0x0000000007193000-memory.dmp

Filesize
652KB

Download
memory/60-34-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/60-54-0x0000000006E80000-0x0000000006EB2000-memory.dmp

Filesize
200KB

Download
memory/2360-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2360-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2396-24-0x0000000005BC0000-0x0000000005C26000-memory.dmp

Filesize
408KB

Download
memory/2396-17-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2396-16-0x0000000005590000-0x0000000005BB8000-memory.dmp

Filesize
6.2MB

Download
memory/2396-15-0x00000000029E0000-0x0000000002A16000-memory.dmp

Filesize
216KB

Download
memory/2396-97-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2396-18-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2396-67-0x000000006FBC0000-0x000000006FC0C000-memory.dmp

Filesize
304KB

Download
memory/2396-35-0x0000000005DF0000-0x0000000006144000-memory.dmp

Filesize
3.3MB

Download
memory/2396-21-0x0000000005450000-0x0000000005472000-memory.dmp

Filesize
136KB

Download
memory/2396-23-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download
memory/2396-52-0x0000000006320000-0x000000000636C000-memory.dmp

Filesize
304KB

Download
memory/2396-51-0x0000000006300000-0x000000000631E000-memory.dmp

Filesize
120KB

Download
memory/2396-38-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4704-10-0x0000000009CF0000-0x0000000009D8C000-memory.dmp

Filesize
624KB

Download
memory/4704-4-0x0000000005340000-0x000000000534A000-memory.dmp

Filesize
40KB

Download
memory/4704-3-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/4704-2-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/4704-1-0x0000000000850000-0x0000000000936000-memory.dmp

Filesize
920KB

Download
memory/4704-5-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4704-6-0x00000000054F0000-0x0000000005502000-memory.dmp

Filesize
72KB

Download
memory/4704-7-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4704-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4704-8-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4704-9-0x00000000075C0000-0x000000000767E000-memory.dmp

Filesize
760KB

Download
memory/4704-53-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download