remcos | b9dc50480f47cecdd81584b17d81dd4020c5a189c66c48b2a14779870b89c414

Analysis

max time kernel
150s
max time network
153s
platform
windows10_x64
resource
win10v20201028
submitted
30/12/2020, 09:33

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General

Target
Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe
Size 1.1MB
Sample201230-196k5nqq52
SHA256 b9dc50480f47cecdd81584b17d81dd4020c5a189c66c48b2a14779870b89c414
MD5 ea2f2eb11f583f7ed7f5b72a81847020
SHA1 c435421dd3ae2529fcc84105bda3f18ebf3b53c8
SHA512 1f0cfaba2000647788f1644523e74b2f6d223502d7442fb9fb2692f4230399115b70d518890a68b0ce7bbfb5889f8c041047abb16357e019df62fe7ecb5a7471
MD5 SHA1 SHA512

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

databasepropersonombrecomercialideasearchwords.services:7680

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 2 IoCs

pid	Process
1376	PxxoServicesTrialNet.exe
3384	PxxoServicesTrialNet.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet.exe\""	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet.exe\""	PxxoServicesTrialNet.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 988 set thread context of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 1376 set thread context of 3384	1376	PxxoServicesTrialNet.exe	83

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3384	PxxoServicesTrialNet.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 988 wrote to memory of 2168	988	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	75
PID 2168 wrote to memory of 2640	2168	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	76
PID 2168 wrote to memory of 2640	2168	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	76
PID 2168 wrote to memory of 2640	2168	Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe	76
PID 2640 wrote to memory of 2876	2640	WScript.exe	79
PID 2640 wrote to memory of 2876	2640	WScript.exe	79
PID 2640 wrote to memory of 2876	2640	WScript.exe	79
PID 2876 wrote to memory of 1376	2876	cmd.exe	81
PID 2876 wrote to memory of 1376	2876	cmd.exe	81
PID 2876 wrote to memory of 1376	2876	cmd.exe	81
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83
PID 1376 wrote to memory of 3384	1376	PxxoServicesTrialNet.exe	83

C:\Users\Admin\AppData\Local\Temp\Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe
"C:\Users\Admin\AppData\Local\Temp\Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:988
- C:\Users\Admin\AppData\Local\Temp\Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe
  "C:\Users\Admin\AppData\Local\Temp\Serfinanza_Extracto_684040036116902691106340203_812861768738784003105_7475937231065058716664651874_2.exe"
  2⤵
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2640
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2876
    - - C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet.exe
        
        C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet.exe
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1376
      - C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet.exe
        
        "C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet.exe"
        6⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetWindowsHookEx
        
        PID:3384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/988-7-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

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memory/988-2-0x0000000073310000-0x00000000739FE000-memory.dmp

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memory/988-3-0x0000000000B50000-0x0000000000B51000-memory.dmp

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memory/988-5-0x0000000005540000-0x0000000005541000-memory.dmp

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memory/988-6-0x0000000001640000-0x0000000001669000-memory.dmp

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memory/1376-17-0x0000000073310000-0x00000000739FE000-memory.dmp

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memory/2168-8-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/2168-10-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/3384-26-0x0000000000400000-0x0000000000421000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads