remcos | 528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7

General

Target

528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
Size

767KB
MD5

6ac1021323ec80854139a6870791d45a
SHA1

8b5619a42f20b0928cdeda4b9a83e58a8e8d787f
SHA256

528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7
SHA512

402c07df8d307f9c2eab416e2af0f3293137903bb286a356709155642af728890cd1ea60a13323e6eb49a0de5929d0562665921a54a20f845c4037d21552579a
SSDEEP

12288:ka/qUi2iNTZKgcb5HHGr1ZdVd0CpYb3rG5LuO39nqtnImHqzhO7PJK6G3iF2:CUi11ZTcbJHGrPvqb39OtnqnGqPJKLSo

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

172.111.153.101:5888

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-5VO1QH
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
take_screenshot_title
notepad;solitaire;

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1376 set thread context of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.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 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	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.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
1652	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1652	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	98
PID 1376 wrote to memory of 1652	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	98
PID 1376 wrote to memory of 1652	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	98
PID 1376 wrote to memory of 4216	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	99
PID 1376 wrote to memory of 4216	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	99
PID 1376 wrote to memory of 4216	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	99
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101
PID 1376 wrote to memory of 556	1376	528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe	101

C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
"C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.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:1376
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aVoduRhDdfoqJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA33.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1652
- C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
  "C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"
  2⤵
  PID:4216
- C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
  "C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:556

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

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Downloads

memory/556-24-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-28-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-20-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-31-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-30-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-21-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-27-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-26-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-25-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-32-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/556-23-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1376-7-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/1376-3-0x0000000005330000-0x00000000053C2000-memory.dmp

Filesize
584KB

Download
memory/1376-22-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/1376-2-0x00000000058E0000-0x0000000005E84000-memory.dmp

Filesize
5.6MB

Download
memory/1376-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/1376-10-0x00000000060C0000-0x000000000615C000-memory.dmp

Filesize
624KB

Download
memory/1376-9-0x00000000057F0000-0x000000000588C000-memory.dmp

Filesize
624KB

Download
memory/1376-8-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/1376-1-0x0000000000830000-0x00000000008F6000-memory.dmp

Filesize
792KB

Download
memory/1376-6-0x00000000054A0000-0x00000000054AE000-memory.dmp

Filesize
56KB

Download
memory/1376-5-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/1376-4-0x00000000052F0000-0x00000000052FA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads