remcos | f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517

General

Target

f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
Size

610KB
MD5

d0627ad0019378cd5a6f23eb4a0f1c8f
SHA1

9626f6c80883b8203b299a1d751e136bf5e16e54
SHA256

f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517
SHA512

8b6a2d8c71a2232f07c17d6e1e67e34945cbf08dad2426112ace21c4d808fdbf05adc44e78be742067130255af819d97cae93bf3c68f05da5c88777b6a8bbdd8
SSDEEP

12288:p98UWQxHvxTMN0X4YcXGw9CIOmUwuTRQXgz3sK7hvhO7G:paQxG3YWGkCIhUwuTRQwrl9e

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

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe

Executes dropped EXE 2 IoCs

pid	Process
3488	googlegroupaccount.exe
1804	googlegroupaccount.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4504 set thread context of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 3488 set thread context of 1804	3488	googlegroupaccount.exe	84

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4308	1804	WerFault.exe	84

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	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 4504 wrote to memory of 2708	4504	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	82
PID 2708 wrote to memory of 3488	2708	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	83
PID 2708 wrote to memory of 3488	2708	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	83
PID 2708 wrote to memory of 3488	2708	f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe	83
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84
PID 3488 wrote to memory of 1804	3488	googlegroupaccount.exe	84

C:\Users\Admin\AppData\Local\Temp\f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
"C:\Users\Admin\AppData\Local\Temp\f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Users\Admin\AppData\Local\Temp\f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe
  "C:\Users\Admin\AppData\Local\Temp\f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2708
- - 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:3488
  - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
      "C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe"
      4⤵
      Executes dropped EXE
      PID:1804
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 524
        5⤵
        Program crash
        
        PID:4308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1804 -ip 1804
1⤵
PID:2836

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
610KB

MD5
d0627ad0019378cd5a6f23eb4a0f1c8f

SHA1
9626f6c80883b8203b299a1d751e136bf5e16e54

SHA256
f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517

SHA512
8b6a2d8c71a2232f07c17d6e1e67e34945cbf08dad2426112ace21c4d808fdbf05adc44e78be742067130255af819d97cae93bf3c68f05da5c88777b6a8bbdd8

Download Submit
memory/1804-34-0x0000000000900000-0x0000000000980000-memory.dmp

Filesize
512KB

Download
memory/1804-30-0x0000000000900000-0x0000000000980000-memory.dmp

Filesize
512KB

Download
memory/2708-5-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-4-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-9-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3488-22-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/3488-35-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/3488-25-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/4504-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4504-10-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4504-3-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4504-2-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/4504-1-0x0000000000A60000-0x0000000000B00000-memory.dmp

Filesize
640KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads