remcos | ce955f7e7ea6e3e9b24cfaace62b786cf54a2559869fd768f63170fdf0c4e303

General

Target
WAYBILL.EXE
Size 1001KB
Sample211012-ta25vacga3
SHA256 23d4b811a2e3f349ac70d49dafc192bd830776257f0ea82fce704f9db6e617c2
MD5 ac7e862a8d65c0685d84680af5905ac8
SHA1 52f159eaba5d0ac149045f45d6f427216c6be330
SHA512 25eafb7d891c652d8f7b35a93f6d56f7fbf7afd5dfbc1641e1e280bd448aa9b1c2d6968698eda2cac21dacb01182894eaacb75b231800ff34f9d8d762a167cd8
MD5 SHA1 SHA512

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

RemoteHost

C2

freelife.hopto.org:2404
freelife1.hopto.org:2404
freelife2.hopto.org:2404
freelife01.hopto.org:2404
freelife3.hopto.org:2404
freelife4.hopto.org:2404
freelife5.hopto.org:2404

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
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
pastananiceforwhat-OMFBDS
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
notepad;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\Mvcaoyd = "C:\\Users\\Public\\Libraries\\dyoacvM.url"	WAYBILL.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71
PID 3572 wrote to memory of 4596	3572	WAYBILL.EXE	71

C:\Users\Admin\AppData\Local\Temp\WAYBILL.EXE
"C:\Users\Admin\AppData\Local\Temp\WAYBILL.EXE"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\SysWOW64\secinit.exe
  C:\Windows\System32\secinit.exe
  2⤵
  PID:4596

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3572-117-0x00000000007B0000-0x00000000007B1000-memory.dmp

Download

memory/3572-118-0x00000000024B1000-0x00000000024C5000-memory.dmp

Download

memory/4596-121-0x0000000000950000-0x0000000000951000-memory.dmp

Download

memory/4596-120-0x0000000000890000-0x0000000000891000-memory.dmp

Download

memory/4596-123-0x0000000072600000-0x000000007267C000-memory.dmp

Download

memory/4596-122-0x00000000008F0000-0x00000000008F1000-memory.dmp

Download

memory/4596-124-0x0000000000400000-0x0000000000479000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads