remcos | 40a4b12c7c640f2aab54020b79d687b994f9e6b180dd213e9923e416308a7003

General

Target

2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
Size

738KB
MD5

d34ed02f5df21129c5b0e6bc847b7edf
SHA1

ec5c08fc92955495bbe41a581fc2385f3bf3f897
SHA256

2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f
SHA512

f8f36ad34ca36baf2f5fbad09326c9e0f66059beb68f3743f4435f7b0a933d13d964cb96d1b2334ec6e667d4868cbc99d7580502a2016baf8838e58a1f25df1d
SSDEEP

12288:D5A/1ck0MVNsspCbS5IUQinQic+fRlFqkwch2JJxqUcmpvj6SCKVEYbXuhhookb7:lAnpCkIUQin9RlNhEJIUcmpvjLpVivhV

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.111.234.100:5888

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-L3B6TW
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

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	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3484 set thread context of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.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 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	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
4300	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3484 wrote to memory of 4300	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	89
PID 3484 wrote to memory of 4300	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	89
PID 3484 wrote to memory of 4300	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	89
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91
PID 3484 wrote to memory of 3692	3484	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	91

C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
"C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.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:3484
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pdvEmwbzGcyeD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF9E1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4300
- C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3692

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF9E1.tmp

Filesize
1KB

MD5
187087c819147f6a9214df274e386f32

SHA1
0c88c212976e7c7c4ebeba3e3adc1ffcbf2ffd51

SHA256
ee5de7d9e51a23c7c52a1c5e2918612e83b6e27e2ee8469636f0e890abd3e8bc

SHA512
5f57dd252b33eb58b7457f2be1b4e3e89b8298553c2ac33228680c48bfc04defc84a036fb92347480602200c52e36fdf4e26daa4e40d0e2c0b1be775dbceeb9a

Download Submit
memory/3484-6-0x0000000005340000-0x000000000534A000-memory.dmp

Filesize
40KB

Download
memory/3484-2-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/3484-3-0x0000000005350000-0x00000000053E2000-memory.dmp

Filesize
584KB

Download
memory/3484-4-0x00000000053F0000-0x000000000548C000-memory.dmp

Filesize
624KB

Download
memory/3484-5-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/3484-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/3484-7-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/3484-8-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/3484-9-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/3484-10-0x0000000006E40000-0x0000000006EFC000-memory.dmp

Filesize
752KB

Download
memory/3484-11-0x0000000002BE0000-0x0000000002C5A000-memory.dmp

Filesize
488KB

Download
memory/3484-1-0x00000000009D0000-0x0000000000A8E000-memory.dmp

Filesize
760KB

Download
memory/3484-22-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/3692-16-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-26-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-18-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-21-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-20-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-15-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-23-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-24-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-25-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-19-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-27-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-28-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-29-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-30-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-31-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-32-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3692-33-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads