remcos | 06daecd07c279e616630efa8dcdf825a6e3a69731f67a52872ad3b9e48ce859a

General

Target

PI20200206AP,pdf.exe
Size

627KB
MD5

82bf256a05b49b373ee14629f1b48785
SHA1

e5ece8a7b9a6d4ec753f3099288552a9947cb68f
SHA256

d5f20f1e1795748c57d2a7ce2f6cd141afce32beaea0b63850854214fcf8e260
SHA512

df34787e54f82d92bc37b079cc5861f44739c529be7cf6963f4fcb9c03a3d259c9e5271719a9459e9279a76242deabd979b68ffeda9541d6cf6dd66bfa5a7c61
SSDEEP

12288:7+uhQMCxL5KoNBIVXLQ5IonUFJb+Y0IdbIF1z425etmwgoL6vmxt:HhCxLw0BaLQ5JUPCY0SIFZF5m/hxt

Score

10^/10

remcos grecious discovery rat

Malware Config

Extracted

Family

remcos

Botnet

GRECIOUS

C2

zubby2468.hopto.org:8975

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
Remcos-P9X35M
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;

Extracted

Family

remcos

Version

3.2.1 Pro

Botnet

GRECIOUS

C2

zubby2468.hopto.org:8975

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
Remcos-P9X35M
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
Remcos family
remcos

Loads dropped DLL 1 IoCs

pid	Process
2524	PI20200206AP,pdf.exe

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
2556	1808	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PI20200206AP,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PI20200206AP,pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 2524 wrote to memory of 1808	2524	PI20200206AP,pdf.exe	30
PID 1808 wrote to memory of 2556	1808	PI20200206AP,pdf.exe	31
PID 1808 wrote to memory of 2556	1808	PI20200206AP,pdf.exe	31
PID 1808 wrote to memory of 2556	1808	PI20200206AP,pdf.exe	31
PID 1808 wrote to memory of 2556	1808	PI20200206AP,pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 172
    3⤵
    - Program crash
    PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsd9B56.tmp\bvxiuwkw.dll

Filesize
16KB

MD5
fc8aa09cf3a758c8d53f5f2308bd517e

SHA1
dc283fce636887938075e853c6769927b3380f03

SHA256
4684ea37a97a5757612377341258d8698b91c92965abbf35d915f6c81037a697

SHA512
de53151aa0b2c3a180abf95d2764af5bec3732bfac0e53e7d41cd07688538074d0476e8b1d19bcf6d012fa3d2745f76c63ed5ea1eee9c6e35e62b097775931be

Download Submit
memory/1808-9-0x00000000001C0000-0x0000000000239000-memory.dmp

Filesize
484KB

Download
memory/1808-15-0x00000000001C0000-0x0000000000239000-memory.dmp

Filesize
484KB

Download
memory/1808-21-0x00000000001C0000-0x0000000000239000-memory.dmp

Filesize
484KB

Download
memory/2524-7-0x00000000745C0000-0x00000000745C9000-memory.dmp

Filesize
36KB

Download
memory/2524-20-0x00000000745C0000-0x00000000745C9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads