remcos | de10b56f8fb321be38064332e6938917790f2fada2cec604aa89c6a0de071ea6

General

Target
Iomaxhrctxwofprickvoyatkswfgpenipp.exe
Size 901KB
Sample210929-l1nfdaedg3
SHA256 de10b56f8fb321be38064332e6938917790f2fada2cec604aa89c6a0de071ea6
MD5 0ca89e863cf1cfe049593aec504c6c5d
SHA1 06cb8f06a5857fe7b12d2c5386ce4c222d30625f
SHA512 22447b8048f4e3858c78f9dc6d1df52a6c4045d4254cf163d129929efc7e9ff552cffbea578da2ac3bcb1a7bdaf717aafb6402a439fa8b96d274afc0136fd550
MD5 SHA1 SHA512

Score

10^/10

remcos remote-host persistence rat

Malware Config

Extracted

Family

remcos

Version

3.1.0 Pro

Botnet

Remote-Host

C2

213.152.162.181:5119
184.75.221.171:5119
199.249.230.27:5119
185.103.96.143:5119
185.104.184.43:5119

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Host.exe
copy_folder
Document
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
logon
keylog_path
%Temp%
mouse_option
false
mutex
-PE9YU0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Service
screenshot_path
%AppData%
screenshot_time
10
startup_value
Windows
take_screenshot_option
false
take_screenshot_time
3
take_screenshot_title
Gemini;banking;online;secure;digital;crypto;card;bitcoin;coin;bank;checkout;pay;personal;mastercard;visa;wallet;paypal;admin;blockchain;coinbase;transaction;confidential;recover;recovery;phrase;key;bit;ethereum;WhatsApp;transfer;sign;wire;login;creditcard;paypal

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Iomaxhr = "C:\\Users\\Public\\Libraries\\rhxamoI.url"	Iomaxhrctxwofprickvoyatkswfgpenipp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
2852	reg.exe
1980	reg.exe
1612	reg.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68
PID 740 wrote to memory of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68
PID 740 wrote to memory of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68
PID 740 wrote to memory of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68
PID 740 wrote to memory of 1168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	68
PID 740 wrote to memory of 3168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	69
PID 740 wrote to memory of 3168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	69
PID 740 wrote to memory of 3168	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	69
PID 3168 wrote to memory of 1620	3168	cmd.exe	71
PID 3168 wrote to memory of 1620	3168	cmd.exe	71
PID 3168 wrote to memory of 1620	3168	cmd.exe	71
PID 1620 wrote to memory of 1980	1620	cmd.exe	73
PID 1620 wrote to memory of 1980	1620	cmd.exe	73
PID 1620 wrote to memory of 1980	1620	cmd.exe	73
PID 1620 wrote to memory of 1612	1620	cmd.exe	74
PID 1620 wrote to memory of 1612	1620	cmd.exe	74
PID 1620 wrote to memory of 1612	1620	cmd.exe	74
PID 1620 wrote to memory of 2148	1620	cmd.exe	75
PID 1620 wrote to memory of 2148	1620	cmd.exe	75
PID 1620 wrote to memory of 2148	1620	cmd.exe	75
PID 740 wrote to memory of 2340	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	76
PID 740 wrote to memory of 2340	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	76
PID 740 wrote to memory of 2340	740	Iomaxhrctxwofprickvoyatkswfgpenipp.exe	76
PID 2340 wrote to memory of 2852	2340	cmd.exe	78
PID 2340 wrote to memory of 2852	2340	cmd.exe	78
PID 2340 wrote to memory of 2852	2340	cmd.exe	78

C:\Users\Admin\AppData\Local\Temp\Iomaxhrctxwofprickvoyatkswfgpenipp.exe
"C:\Users\Admin\AppData\Local\Temp\Iomaxhrctxwofprickvoyatkswfgpenipp.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:740
- C:\Users\Admin\AppData\Local\Temp\Iomaxhrctxwofprickvoyatkswfgpenipp.exe
  C:\Users\Admin\AppData\Local\Temp\Iomaxhrctxwofprickvoyatkswfgpenipp.exe
  2⤵
  PID:1168
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3168
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1620
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1980
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:1612
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:2148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2340
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:2852

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/740-114-0x0000000000740000-0x0000000000741000-memory.dmp

Download

memory/1168-125-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/1168-116-0x0000000000400000-0x0000000000478000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads