remcos | 4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 07:35

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General

Target

4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
Size

919KB
MD5

200ab3999beb523c5db56432cc33a950
SHA1

6fc3c5ffbe15aff2ffd49868df193a634eec4f84
SHA256

4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92
SHA512

9b9136b6ff456de611bc39d0913dee8ab7e9f3b16f05ab1300daaeda905cbe6abbd5fbaea697fefbd464c113745d445e44d89091c01fcffe61cd4103b72d052c
SSDEEP

12288:Dd+rJVuseixBGDrJaRnPIgzPpaHpYzexkaLTjXefr0AAw++Y8H1fhaKkfSX5l8F4:w/Vo1yh2ptxvLTSfYAV+PcZh9LMX2H

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Edge.exe
copy_folder
Edge
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Edge-3PI05M
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

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe

Executes dropped EXE 2 IoCs

pid	Process
2868	Edge.exe
2848	Edge.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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Edge-3PI05M = "\"C:\\ProgramData\\Edge\\Edge.exe\""	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Edge-3PI05M = "\"C:\\ProgramData\\Edge\\Edge.exe\""	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Edge-3PI05M = "\"C:\\ProgramData\\Edge\\Edge.exe\""	Edge.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Edge-3PI05M = "\"C:\\ProgramData\\Edge\\Edge.exe\""	Edge.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3096 set thread context of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 2868 set thread context of 2848	2868	Edge.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 4 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	Edge.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Edge.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 3096 wrote to memory of 4228	3096	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	86
PID 4228 wrote to memory of 2868	4228	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	87
PID 4228 wrote to memory of 2868	4228	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	87
PID 4228 wrote to memory of 2868	4228	4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe	87
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91
PID 2868 wrote to memory of 2848	2868	Edge.exe	91

C:\Users\Admin\AppData\Local\Temp\4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
"C:\Users\Admin\AppData\Local\Temp\4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3096
- C:\Users\Admin\AppData\Local\Temp\4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe
  "C:\Users\Admin\AppData\Local\Temp\4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92N.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4228
- - C:\ProgramData\Edge\Edge.exe
    "C:\ProgramData\Edge\Edge.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2868
  - - C:\ProgramData\Edge\Edge.exe
      "C:\ProgramData\Edge\Edge.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Edge\Edge.exe

Filesize
919KB

MD5
200ab3999beb523c5db56432cc33a950

SHA1
6fc3c5ffbe15aff2ffd49868df193a634eec4f84

SHA256
4f40d7f94f6d84b59b037af9eac514dab4434afd06ee0af1e19519a111ce1e92

SHA512
9b9136b6ff456de611bc39d0913dee8ab7e9f3b16f05ab1300daaeda905cbe6abbd5fbaea697fefbd464c113745d445e44d89091c01fcffe61cd4103b72d052c

Download Submit
memory/2848-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2848-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2868-39-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/2868-31-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2868-30-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/2868-29-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2868-32-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/3096-10-0x0000000009A80000-0x0000000009B1C000-memory.dmp

Filesize
624KB

Download
memory/3096-6-0x0000000005AC0000-0x0000000005AD2000-memory.dmp

Filesize
72KB

Download
memory/3096-3-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/3096-4-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3096-1-0x0000000000AA0000-0x0000000000B8C000-memory.dmp

Filesize
944KB

Download
memory/3096-17-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3096-5-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/3096-0-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/3096-8-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3096-7-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/3096-2-0x0000000005AE0000-0x0000000006084000-memory.dmp

Filesize
5.6MB

Download
memory/3096-9-0x00000000073A0000-0x0000000007460000-memory.dmp

Filesize
768KB

Download
memory/4228-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4228-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4228-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4228-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4228-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads