remcos | a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 01:24

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General

Target

a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
Size

848KB
MD5

ae75577913968ec41742093de9a8f00d
SHA1

21cf02ec5fa8d8f4bc97803e02c3e638d51b69bd
SHA256

a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
SHA512

7288f50eabdde4c2561d2c477dcc09416cb6ad40d05d8ec93c7695f0dfa558549228d892c8a7b36e30efb42435017c30c1e7511b6e1112e9ee523c51580d7673
SSDEEP

24576:pnus9xWJ4JKWk4hSKP57dJNHwHXgKp2+zA:pnusSJEFtZdJNoXgizA

Score

10^/10

remcos 3456789 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

3456789

172.93.220.148:45682

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
765-8M14I5
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3208	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	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3720 set thread context of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.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 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	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.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
3832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3208	powershell.exe
3208	powershell.exe
3208	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3208	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 3208	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	97
PID 3720 wrote to memory of 3208	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	97
PID 3720 wrote to memory of 3208	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	97
PID 3720 wrote to memory of 3832	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	99
PID 3720 wrote to memory of 3832	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	99
PID 3720 wrote to memory of 3832	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	99
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101
PID 3720 wrote to memory of 3632	3720	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	101

C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
"C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GiyNXejQVN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GiyNXejQVN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9258.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3832
- C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
  "C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3632

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=4408,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=1284 /prefetch:8
1⤵
PID:928

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_qml4ii1i.utf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9258.tmp

Filesize
1KB

MD5
dff0aa856454d772e023a954190d778e

SHA1
c5831394e569f2fd1bdd462b446450bf53d7aafe

SHA256
daa1986c2237bf94f861da0ca6432da3042f15efd4b7a45c5a6b58a038f49c7d

SHA512
0a85a87d055272b814a37522645ddeb16eef57091816438a11dec66e19a6c811575874d6b6a1c2c3724d7011b51c2795a5c05c78e3a4875e42ad81338a6eb9f2

Download Submit
memory/3208-66-0x00000000074C0000-0x00000000074CE000-memory.dmp

Filesize
56KB

Download
memory/3208-67-0x00000000074D0000-0x00000000074E4000-memory.dmp

Filesize
80KB

Download
memory/3208-42-0x0000000006020000-0x000000000606C000-memory.dmp

Filesize
304KB

Download
memory/3208-69-0x00000000075B0000-0x00000000075B8000-memory.dmp

Filesize
32KB

Download
memory/3208-68-0x00000000075D0000-0x00000000075EA000-memory.dmp

Filesize
104KB

Download
memory/3208-65-0x0000000007490000-0x00000000074A1000-memory.dmp

Filesize
68KB

Download
memory/3208-64-0x0000000007510000-0x00000000075A6000-memory.dmp

Filesize
600KB

Download
memory/3208-63-0x0000000007300000-0x000000000730A000-memory.dmp

Filesize
40KB

Download
memory/3208-62-0x0000000007290000-0x00000000072AA000-memory.dmp

Filesize
104KB

Download
memory/3208-15-0x0000000002680000-0x00000000026B6000-memory.dmp

Filesize
216KB

Download
memory/3208-16-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3208-18-0x0000000005070000-0x0000000005698000-memory.dmp

Filesize
6.2MB

Download
memory/3208-61-0x00000000078D0000-0x0000000007F4A000-memory.dmp

Filesize
6.5MB

Download
memory/3208-17-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3208-21-0x0000000004F30000-0x0000000004F96000-memory.dmp

Filesize
408KB

Download
memory/3208-22-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/3208-20-0x0000000004E90000-0x0000000004EB2000-memory.dmp

Filesize
136KB

Download
memory/3208-60-0x0000000007180000-0x0000000007223000-memory.dmp

Filesize
652KB

Download
memory/3208-59-0x0000000006510000-0x000000000652E000-memory.dmp

Filesize
120KB

Download
memory/3208-49-0x000000006FC80000-0x000000006FCCC000-memory.dmp

Filesize
304KB

Download
memory/3208-48-0x0000000007140000-0x0000000007172000-memory.dmp

Filesize
200KB

Download
memory/3208-72-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3208-40-0x0000000005F40000-0x0000000005F5E000-memory.dmp

Filesize
120KB

Download
memory/3208-39-0x0000000005A20000-0x0000000005D74000-memory.dmp

Filesize
3.3MB

Download
memory/3632-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3632-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3720-6-0x00000000059F0000-0x00000000059FE000-memory.dmp

Filesize
56KB

Download
memory/3720-5-0x00000000057C0000-0x00000000057CA000-memory.dmp

Filesize
40KB

Download
memory/3720-3-0x0000000005800000-0x0000000005892000-memory.dmp

Filesize
584KB

Download
memory/3720-7-0x000000007517E000-0x000000007517F000-memory.dmp

Filesize
4KB

Download
memory/3720-9-0x0000000007210000-0x00000000072CE000-memory.dmp

Filesize
760KB

Download
memory/3720-0-0x000000007517E000-0x000000007517F000-memory.dmp

Filesize
4KB

Download
memory/3720-4-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3720-8-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3720-41-0x0000000075170000-0x0000000075920000-memory.dmp

Filesize
7.7MB

Download
memory/3720-10-0x0000000009880000-0x000000000991C000-memory.dmp

Filesize
624KB

Download
memory/3720-2-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/3720-1-0x0000000000CD0000-0x0000000000DAA000-memory.dmp

Filesize
872KB

Download