remcos | b5de4a5e45c2c65657cd5c4a1cfd91888b889646e7098c7642c63dac118bbf71

General

Target

Template Master Vendor_SAP.xIsx.exe
Size

634KB
MD5

d24c89b8ad4bcabbf5c19ec12a39576f
SHA1

1891893858178353c295d55533e196d2d4d2c1c9
SHA256

91b00403de43b3c7d5f630b69934dcb1a9694c6a2cbea5eae599caa54405cf81
SHA512

1c0710ed94fe8e102bce0af9015ab72356c7129863d76dc36c3c44fd904aafd60e61e0d433faf9936f76cbd3d100ef1e9fe6f81ae23fd41ae411c5757277b38e
SSDEEP

12288:r+/VWUgZUeBcW5LVg4RJlj68Fjh+8PgpUM4xQ:r+NWUgZ1OuJM8F4cgpUvx

Score

10^/10

remcos graceland2021 discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

GRACELAND2021

C2

graceland2021.ddns.net:1313

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-RCTAWU
screenshot_crypt
false
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
01
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Template Master Vendor_SAP.xIsx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4224 set thread context of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94

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 3 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	Template Master Vendor_SAP.xIsx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Template Master Vendor_SAP.xIsx.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
3268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4224	Template Master Vendor_SAP.xIsx.exe
4224	Template Master Vendor_SAP.xIsx.exe
4224	Template Master Vendor_SAP.xIsx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4224	Template Master Vendor_SAP.xIsx.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5020	Template Master Vendor_SAP.xIsx.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4224 wrote to memory of 3268	4224	Template Master Vendor_SAP.xIsx.exe	91
PID 4224 wrote to memory of 3268	4224	Template Master Vendor_SAP.xIsx.exe	91
PID 4224 wrote to memory of 3268	4224	Template Master Vendor_SAP.xIsx.exe	91
PID 4224 wrote to memory of 1204	4224	Template Master Vendor_SAP.xIsx.exe	93
PID 4224 wrote to memory of 1204	4224	Template Master Vendor_SAP.xIsx.exe	93
PID 4224 wrote to memory of 1204	4224	Template Master Vendor_SAP.xIsx.exe	93
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94
PID 4224 wrote to memory of 5020	4224	Template Master Vendor_SAP.xIsx.exe	94

C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.exe
"C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.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:4224
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UGuRPFnn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0FC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3268
- C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.exe
  "C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.exe"
  2⤵
  PID:1204
- C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.exe
  "C:\Users\Admin\AppData\Local\Temp\Template Master Vendor_SAP.xIsx.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB0FC.tmp

Filesize
1KB

MD5
99b19b703805a1b70a56b03f86c480f9

SHA1
a245061f5eaf3e34d4852dd7dd52ef558b561cd7

SHA256
ad3d60996c250efb79e791b5a473e771be9850e67965d5a565d90d225ebe5c4e

SHA512
d5fbe2e9aec390f35d43695873feb73f7bb1aaac98126c18a8faf06505595ff41f2baba5b72cc3e222130ba4af7c80d1261c402505158d586825bc89c961ec91

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
d1975fbcad4c69950ec1c17c7aac05cf

SHA1
8860567e7be7ebc39f2b3d2fac5b54afd108fe8c

SHA256
9bed33d03f996226d24087b9693deb06b479e1712e22ec4b65d5de751b383b95

SHA512
d7a510ffd249e9038bfb7857b95f2fa7944d8bf84aee9c260225e143b3acb04a6fc071c9832c6a54972cb7a2709151af63447406ed8389576b063217244801d0

Download Submit
memory/4224-6-0x0000000004D00000-0x0000000004D56000-memory.dmp

Filesize
344KB

Download
memory/4224-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/4224-1-0x0000000000090000-0x0000000000134000-memory.dmp

Filesize
656KB

Download
memory/4224-5-0x0000000004B10000-0x0000000004B1A000-memory.dmp

Filesize
40KB

Download
memory/4224-27-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4224-7-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4224-8-0x0000000005020000-0x000000000502A000-memory.dmp

Filesize
40KB

Download
memory/4224-3-0x00000000051B0000-0x0000000005754000-memory.dmp

Filesize
5.6MB

Download
memory/4224-10-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4224-11-0x0000000000A20000-0x0000000000A74000-memory.dmp

Filesize
336KB

Download
memory/4224-2-0x0000000004B60000-0x0000000004BFC000-memory.dmp

Filesize
624KB

Download
memory/4224-9-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/4224-4-0x0000000004C00000-0x0000000004C92000-memory.dmp

Filesize
584KB

Download
memory/5020-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-42-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5020-45-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads