remcos | 9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee

General

Target

9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
Size

863KB
MD5

dabe08d54fa304acf839f180c0ee1211
SHA1

34e9389367fffbf9edf77b4f973ff4f83bf14b87
SHA256

9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee
SHA512

61b26ac129410af9404e53bc575045ccbcc2fd6af16a5201f6cef47875d767c2511868edfa026f6374b86ec238ac4251263701c5a7a7ef50c3b4d8efda62b7c1
SSDEEP

24576:epLBj972/zHgaqgEa8R4ztaRGcNpVnNRCxhO5shG5qt:el0/qgz8R4z0RDNpVTN5it

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.173.4.16:2560

Attributes

audio_folder
MicRecords
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
true
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-KDW6BI
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	svchost.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3968 set thread context of 636	3968	svchost.exe	102

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
4680	636	WerFault.exe	102

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4108	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4344	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
Token: SeDebugPrivilege	3968	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 1132	2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe	90
PID 2444 wrote to memory of 1132	2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe	90
PID 2444 wrote to memory of 2496	2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe	93
PID 2444 wrote to memory of 2496	2444	9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe	93
PID 2496 wrote to memory of 4344	2496	cmd.exe	95
PID 2496 wrote to memory of 4344	2496	cmd.exe	95
PID 1132 wrote to memory of 4108	1132	cmd.exe	96
PID 1132 wrote to memory of 4108	1132	cmd.exe	96
PID 2496 wrote to memory of 3968	2496	cmd.exe	97
PID 2496 wrote to memory of 3968	2496	cmd.exe	97
PID 3968 wrote to memory of 3848	3968	svchost.exe	101
PID 3968 wrote to memory of 3848	3968	svchost.exe	101
PID 3968 wrote to memory of 3848	3968	svchost.exe	101
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102
PID 3968 wrote to memory of 636	3968	svchost.exe	102

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe
"C:\Users\Admin\AppData\Local\Temp\9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:4108
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5B8D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4344
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3968
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
      4⤵
      PID:3848
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      4⤵
      PID:636
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 24
        5⤵
        Program crash
        
        PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 636 -ip 636
1⤵
PID:3468

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:32

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {c82192ee-6cb5-4bc0-9ef0-fb818773790a} -Embedding
1⤵
PID:1160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scripting

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5B8D.tmp.bat

Filesize
151B

MD5
ceb5679f9fb99301621dcd7778b347c6

SHA1
f2231ac864a97704f55a0eb85db873d2fdd48ff7

SHA256
0fbabb8cb511297194217b5fa2b246b0ce6653a656adf4025d1c2024262905cb

SHA512
3802bbc49742504a9fe17df1a3b9756006df3e5da476df5e606129b404df3d500151140f9e2c2fd936b766770291fb6b9f0126550abc6f2ae1f646b8aba75f32

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
863KB

MD5
dabe08d54fa304acf839f180c0ee1211

SHA1
34e9389367fffbf9edf77b4f973ff4f83bf14b87

SHA256
9eb61a37bbe20ca7abc38da6d92b15c654ce3005eac451d16699a01b7c15b0ee

SHA512
61b26ac129410af9404e53bc575045ccbcc2fd6af16a5201f6cef47875d767c2511868edfa026f6374b86ec238ac4251263701c5a7a7ef50c3b4d8efda62b7c1

Download Submit
memory/636-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-1-0x00007FFB7BAB3000-0x00007FFB7BAB5000-memory.dmp

Filesize
8KB

Download
memory/2444-0-0x000002152DED0000-0x000002152DEDC000-memory.dmp

Filesize
48KB

Download
memory/2444-2-0x00007FFB7BAB0000-0x00007FFB7C571000-memory.dmp

Filesize
10.8MB

Download
memory/2444-3-0x0000021548590000-0x0000021548664000-memory.dmp

Filesize
848KB

Download
memory/2444-8-0x00007FFB7BAB0000-0x00007FFB7C571000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads