remcos | fc7cb61d2d3af49d228b2aa554255b5c0401090684cf4336485499af4b6ae2bb

Analysis

max time kernel
151s
max time network
154s
platform
windows10_x64
resource
win10-en-20210920
submitted
24/10/2021, 16:26

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General

Target
48066338a1fea5493f9c9a763d409d2d.exe
Size 847KB
Sample211024-txh1gsfedr
SHA256 fc7cb61d2d3af49d228b2aa554255b5c0401090684cf4336485499af4b6ae2bb
MD5 48066338a1fea5493f9c9a763d409d2d
SHA1 9c6a204e009c8f2f2758a62bb29c598bb7a93af8
SHA512 d53c2dba23840ec4f5cfc966cf2efb97c5b65914845cf9b0ca5444cd03c1537fe3c04429d4258eab9f438cdf1dc461cc5b878210722ffc2228788313d686a440
MD5 SHA1 SHA512

Score

10^/10

remcos 10.20 persistence rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

10.20

nikahuve.ac.ug:6968
kalskala.ac.ug:6968
tuekisaa.ac.ug:6968
parthaha.ac.ug:6968

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
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
sgs.dat
keylog_flag
false
keylog_folder
excom
keylog_path
%AppData%
mouse_option
false
mutex
gfhdfthvgcdfsgdfgsds-9FC8KS
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
take_screenshot_title
wikipedia;solitaire;

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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Protrf = "C:\\Users\\Public\\frtorP.url"	48066338a1fea5493f9c9a763d409d2d.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3720	reg.exe
4556	reg.exe
860	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4232	2116	48066338a1fea5493f9c9a763d409d2d.exe	70
PID 2116 wrote to memory of 4412	2116	48066338a1fea5493f9c9a763d409d2d.exe	71
PID 2116 wrote to memory of 4412	2116	48066338a1fea5493f9c9a763d409d2d.exe	71
PID 2116 wrote to memory of 4412	2116	48066338a1fea5493f9c9a763d409d2d.exe	71
PID 4412 wrote to memory of 4384	4412	cmd.exe	73
PID 4412 wrote to memory of 4384	4412	cmd.exe	73
PID 4412 wrote to memory of 4384	4412	cmd.exe	73
PID 4384 wrote to memory of 3720	4384	cmd.exe	75
PID 4384 wrote to memory of 3720	4384	cmd.exe	75
PID 4384 wrote to memory of 3720	4384	cmd.exe	75
PID 4384 wrote to memory of 4556	4384	cmd.exe	76
PID 4384 wrote to memory of 4556	4384	cmd.exe	76
PID 4384 wrote to memory of 4556	4384	cmd.exe	76
PID 4384 wrote to memory of 3820	4384	cmd.exe	77
PID 4384 wrote to memory of 3820	4384	cmd.exe	77
PID 4384 wrote to memory of 3820	4384	cmd.exe	77
PID 2116 wrote to memory of 512	2116	48066338a1fea5493f9c9a763d409d2d.exe	78
PID 2116 wrote to memory of 512	2116	48066338a1fea5493f9c9a763d409d2d.exe	78
PID 2116 wrote to memory of 512	2116	48066338a1fea5493f9c9a763d409d2d.exe	78
PID 512 wrote to memory of 860	512	cmd.exe	80
PID 512 wrote to memory of 860	512	cmd.exe	80
PID 512 wrote to memory of 860	512	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\48066338a1fea5493f9c9a763d409d2d.exe
"C:\Users\Admin\AppData\Local\Temp\48066338a1fea5493f9c9a763d409d2d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\mobsync.exe
  C:\Windows\System32\mobsync.exe
  2⤵
  PID:4232
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4384
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:3720
  - - 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:4556
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:3820
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:512
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:860

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/2116-116-0x0000000000771000-0x0000000000785000-memory.dmp

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memory/2116-115-0x0000000000630000-0x0000000000631000-memory.dmp

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memory/4232-120-0x00000000030F0000-0x00000000030F1000-memory.dmp

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memory/4232-121-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/4232-123-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/4232-122-0x0000000002DD0000-0x0000000002DD1000-memory.dmp

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memory/4232-119-0x0000000003090000-0x0000000003091000-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