remcos | f85d410510e8b70e98e47e8173aec211ec37d07f1c2a773b87916eb8194b7c1c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 01:47

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General

Target

Order8938.exe
Size

1.1MB
MD5

d3fff3f1d4f8d5b93f8ee6ef9de88b81
SHA1

cebcaf2839acba54a8d37fa6b85ccdd82d6b85b1
SHA256

f1e379ba6ef730a30192c591a00410fc174136c7eb71fed2596586b14f29551c
SHA512

00b9d1aa659929827f6e27e1d02d1409edb1f337bbb8a6972163d5be9df42d5e1b45d1e6b9912e836ad77ca0a8269970e317e6c6abb756eec1d693f43cd79aa6
SSDEEP

24576:fv5f66t1rUT6fdMjWo+Dq2MyXKr5B5l3no53lQ9ZynYQHtd19X:H5xy4Gjr+Dqz5do5C9Zy3d11

Score

10^/10

remcos aug - 21 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

AUG - 21

sungito2.ddns.net:5055

154.216.19.222:7088

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-9KM8RM
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

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
4548	powershell.exe
5020	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Order8938.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3248 set thread context of 3272	3248	Order8938.exe	104

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	Order8938.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	Order8938.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
5004	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5020	powershell.exe
4548	powershell.exe
3248	Order8938.exe
3248	Order8938.exe
4548	powershell.exe
5020	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5020	powershell.exe
Token: SeDebugPrivilege	4548	powershell.exe
Token: SeDebugPrivilege	3248	Order8938.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3272	Order8938.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 4548	3248	Order8938.exe	97
PID 3248 wrote to memory of 4548	3248	Order8938.exe	97
PID 3248 wrote to memory of 4548	3248	Order8938.exe	97
PID 3248 wrote to memory of 5020	3248	Order8938.exe	99
PID 3248 wrote to memory of 5020	3248	Order8938.exe	99
PID 3248 wrote to memory of 5020	3248	Order8938.exe	99
PID 3248 wrote to memory of 5004	3248	Order8938.exe	101
PID 3248 wrote to memory of 5004	3248	Order8938.exe	101
PID 3248 wrote to memory of 5004	3248	Order8938.exe	101
PID 3248 wrote to memory of 816	3248	Order8938.exe	103
PID 3248 wrote to memory of 816	3248	Order8938.exe	103
PID 3248 wrote to memory of 816	3248	Order8938.exe	103
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104
PID 3248 wrote to memory of 3272	3248	Order8938.exe	104

C:\Users\Admin\AppData\Local\Temp\Order8938.exe
"C:\Users\Admin\AppData\Local\Temp\Order8938.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:3248
- 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\Order8938.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4548
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TlLBve.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5020
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TlLBve" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD755.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5004
- C:\Users\Admin\AppData\Local\Temp\Order8938.exe
  "C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
  2⤵
  PID:816
- C:\Users\Admin\AppData\Local\Temp\Order8938.exe
  "C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3272

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
62e5fde9670840ef138dc0456528f4f7

SHA1
6152e1f0db1322ad12b984d8a3d7e4726f10b24d

SHA256
6a099d33946a78e96c537df5a5b1644137875b6b3ea27e99bc698973ceb92959

SHA512
1897e85df166b1c717d70c3cbb918a8340610729660ddeb8b26607fa061e87b186afa8a4ce56995cbb55966efc21b1a5cb9e22b180e1a8bf68e6fc968ae35f1e

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

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
90c51894406e4d02ddfaabf9437e1996

SHA1
fad59b59af6311ec946df38da4addd4e25cf0154

SHA256
c32b6b0dff36396946ee8525c3ac46776e447c58c6f6a0660ab93dba0c9d9832

SHA512
329033541270a4f096de67382daeb5b4ce0b3f58c65a5876a5f947d64fad8eb7504ac6a721112ed577714c8a8c6c35aeed0687743470f1cf3331bacd76941833

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fnhnhsec.str.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD755.tmp

Filesize
1KB

MD5
f0067c70cb7f7e7ca5f3840a436523af

SHA1
af51be994e2e3dbaa1188e5e9c5ae1b1496cf4d4

SHA256
09aba2315ac355427c6c40b50ac5f1e8c1f5eb388bcaba73f790d39ce6b9aaf3

SHA512
32956dd36fd55f37efe28dfd5e1e2c0eb26a384cceed7f37dbcef66145736f44b4e67f70400f3eb980b1ae5ef01f868181f3d8ab0ee72e4a78a5bb81be365dc3

Download Submit
memory/3248-8-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/3248-12-0x0000000006500000-0x00000000065C0000-memory.dmp

Filesize
768KB

Download
memory/3248-7-0x0000000005390000-0x00000000053AA000-memory.dmp

Filesize
104KB

Download
memory/3248-4-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-9-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-10-0x00000000053C0000-0x00000000053CC000-memory.dmp

Filesize
48KB

Download
memory/3248-11-0x00000000053D0000-0x00000000053E0000-memory.dmp

Filesize
64KB

Download
memory/3248-6-0x0000000005400000-0x000000000549C000-memory.dmp

Filesize
624KB

Download
memory/3248-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/3248-5-0x00000000051B0000-0x00000000051BA000-memory.dmp

Filesize
40KB

Download
memory/3248-3-0x0000000005110000-0x00000000051A2000-memory.dmp

Filesize
584KB

Download
memory/3248-2-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/3248-55-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-1-0x00000000005F0000-0x0000000000714000-memory.dmp

Filesize
1.1MB

Download
memory/3272-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-142-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-177-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-176-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-174-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-171-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-170-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-168-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-166-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-165-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-161-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-159-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-158-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-154-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-153-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-152-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-149-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-148-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-146-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-144-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-141-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-137-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-136-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-132-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-131-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3272-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-82-0x00000000082C0000-0x000000000893A000-memory.dmp

Filesize
6.5MB

Download
memory/4548-98-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4548-83-0x0000000007C70000-0x0000000007C8A000-memory.dmp

Filesize
104KB

Download
memory/4548-19-0x0000000005CB0000-0x00000000062D8000-memory.dmp

Filesize
6.2MB

Download
memory/4548-20-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4548-18-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4548-17-0x0000000003030000-0x0000000003066000-memory.dmp

Filesize
216KB

Download
memory/4548-91-0x0000000007FB0000-0x0000000007FCA000-memory.dmp

Filesize
104KB

Download
memory/4548-90-0x0000000007EB0000-0x0000000007EC4000-memory.dmp

Filesize
80KB

Download
memory/4548-22-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4548-88-0x0000000007E70000-0x0000000007E81000-memory.dmp

Filesize
68KB

Download
memory/4548-57-0x0000000006930000-0x000000000694E000-memory.dmp

Filesize
120KB

Download
memory/4548-58-0x00000000069D0000-0x0000000006A1C000-memory.dmp

Filesize
304KB

Download
memory/4548-84-0x0000000007CE0000-0x0000000007CEA000-memory.dmp

Filesize
40KB

Download
memory/4548-61-0x00000000755B0000-0x00000000755FC000-memory.dmp

Filesize
304KB

Download
memory/5020-33-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-26-0x00000000055B0000-0x0000000005616000-memory.dmp

Filesize
408KB

Download
memory/5020-80-0x0000000006E10000-0x0000000006E2E000-memory.dmp

Filesize
120KB

Download
memory/5020-85-0x0000000007200000-0x0000000007296000-memory.dmp

Filesize
600KB

Download
memory/5020-60-0x00000000755B0000-0x00000000755FC000-memory.dmp

Filesize
304KB

Download
memory/5020-99-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-81-0x0000000006E40000-0x0000000006EE3000-memory.dmp

Filesize
652KB

Download
memory/5020-59-0x0000000006DD0000-0x0000000006E02000-memory.dmp

Filesize
200KB

Download
memory/5020-25-0x00000000054C0000-0x00000000054E2000-memory.dmp

Filesize
136KB

Download
memory/5020-24-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-49-0x0000000005690000-0x00000000059E4000-memory.dmp

Filesize
3.3MB

Download
memory/5020-21-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/5020-89-0x00000000071B0000-0x00000000071BE000-memory.dmp

Filesize
56KB

Download
memory/5020-32-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/5020-92-0x00000000072A0000-0x00000000072A8000-memory.dmp

Filesize
32KB

Download