remcos | 5c8ef3cc03f446dfd1a1438dc45c81f3cd16679e04a19d85b9318692429a8239

General

Target

PaymentIssueINV-202578_PmtRef_47734v8.exe
Size

620KB
MD5

c61384f6fa6286ff89e1f446cc25adb3
SHA1

3bf45b971bd7dc54c1eaa9f2c55d58c64ca7913e
SHA256

5c8ef3cc03f446dfd1a1438dc45c81f3cd16679e04a19d85b9318692429a8239
SHA512

576ec78e6b5f05912ee448f493c51332198f37166646abef36ca77880816c2ba7850ee57ca844b276e393804f5307bc4198805b9d6748e29dd747b8288ea86d7
SSDEEP

12288:uNvQ534LijMVuiZQ7hPGXC6TR4kliDxv:uNYhLv3NGXRR4Rdv

Score

10^/10

remcos googlegroupaccount discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

googlegroupaccount

C2

107.174.65.146:1194

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
googlegroupaccount.exe
copy_folder
googlegroupaccount
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%Temp%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-1MDOQC
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
Remcos family
remcos

Downloads MZ/PE file 1 IoCs

flow	pid	Process
54	960	Process not Found

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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	PaymentIssueINV-202578_PmtRef_47734v8.exe

Executes dropped EXE 2 IoCs

pid	Process
2932	googlegroupaccount.exe
4788	googlegroupaccount.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	PaymentIssueINV-202578_PmtRef_47734v8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	PaymentIssueINV-202578_PmtRef_47734v8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4608 set thread context of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 2932 set thread context of 4788	2932	googlegroupaccount.exe	91

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	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PaymentIssueINV-202578_PmtRef_47734v8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PaymentIssueINV-202578_PmtRef_47734v8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3068	MicrosoftEdgeUpdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4788	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 4608 wrote to memory of 768	4608	PaymentIssueINV-202578_PmtRef_47734v8.exe	87
PID 768 wrote to memory of 2932	768	PaymentIssueINV-202578_PmtRef_47734v8.exe	90
PID 768 wrote to memory of 2932	768	PaymentIssueINV-202578_PmtRef_47734v8.exe	90
PID 768 wrote to memory of 2932	768	PaymentIssueINV-202578_PmtRef_47734v8.exe	90
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91
PID 2932 wrote to memory of 4788	2932	googlegroupaccount.exe	91

C:\Users\Admin\AppData\Local\Temp\PaymentIssueINV-202578_PmtRef_47734v8.exe
"C:\Users\Admin\AppData\Local\Temp\PaymentIssueINV-202578_PmtRef_47734v8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Users\Admin\AppData\Local\Temp\PaymentIssueINV-202578_PmtRef_47734v8.exe
  "C:\Users\Admin\AppData\Local\Temp\PaymentIssueINV-202578_PmtRef_47734v8.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:768
- - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
    "C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2932
  - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
      "C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:4788

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDEyNTg4NzIzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
87b9a61c1db4d01fe3f8d5d36d73183a

SHA1
284590ec7cdbc0341c7a719a9a332ee915ec95b8

SHA256
a323f7d87e0c8d0438d0bb485d608af682c015644d7b539cc7eb31b59e3af532

SHA512
62107e200068f1ba6e2a9fc489c08e4e106669706215e70c205274e931e2165c2e12b60cc091b94fad88c4bfd3a05c0f01359f92c5d321c6e2fc08e5a917b5e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe

Filesize
620KB

MD5
c61384f6fa6286ff89e1f446cc25adb3

SHA1
3bf45b971bd7dc54c1eaa9f2c55d58c64ca7913e

SHA256
5c8ef3cc03f446dfd1a1438dc45c81f3cd16679e04a19d85b9318692429a8239

SHA512
576ec78e6b5f05912ee448f493c51332198f37166646abef36ca77880816c2ba7850ee57ca844b276e393804f5307bc4198805b9d6748e29dd747b8288ea86d7

Download Submit
memory/768-6-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/768-5-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/768-3-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/768-9-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/768-20-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2932-21-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2932-22-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2932-33-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-7-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-0-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/4608-2-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/4608-1-0x0000000000F10000-0x0000000000FB2000-memory.dmp

Filesize
648KB

Download
memory/4608-44-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4788-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-31-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-26-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-64-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-65-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-73-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-74-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-82-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4788-81-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads