remcos | e10b45022157e2341003e114e5ab08927f35a8a68859cf1ad6b486d74f9e1bfd

General

Target

New order 983765_2021,pdf.exe
Size

300KB
MD5

a3bc7e4679d068b07b086e170aa00de9
SHA1

8586c3c5d2d0d7a62a93df786efb82d49e3639e6
SHA256

9c926fe5371a4b6fea65e5db63e339c6d2e5d81b52f2e8c4522869d7bc41517b
SHA512

5b52ffcc4825fbe0dcb065de1817921173c8ae158c66df89b7aa907b3f544dc2a74124475a33d1df153ce11d77a1d39b9b3850d9bc6ed48e6425d2f78b9d7b2a
SSDEEP

6144:F8LxBdMtMdWuiT10Unn60bYM7JAwOQ9fQe9GsXWEz683JLLwaEzdcNSnEA+:xMd0dVbYBQfGsGEz685LLwjzmNcM

Score

10^/10

remcos jimbo discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Jimbo

C2

nnnnoy.ddns.net:5367

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-3Z7H52
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;

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Jimbo

C2

nnnnoy.ddns.net:5367

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-3Z7H52
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
Remcos family
remcos

Loads dropped DLL 1 IoCs

pid	Process
2152	New order 983765_2021,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
2708	2796	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	New order 983765_2021,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New order 983765_2021,pdf.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2152 wrote to memory of 2796	2152	New order 983765_2021,pdf.exe	30
PID 2796 wrote to memory of 2708	2796	New order 983765_2021,pdf.exe	31
PID 2796 wrote to memory of 2708	2796	New order 983765_2021,pdf.exe	31
PID 2796 wrote to memory of 2708	2796	New order 983765_2021,pdf.exe	31
PID 2796 wrote to memory of 2708	2796	New order 983765_2021,pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\New order 983765_2021,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\New order 983765_2021,pdf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\New order 983765_2021,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\New order 983765_2021,pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 172
    3⤵
    - Program crash
    PID:2708

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\nstEEE2.tmp\edfkc.dll

Filesize
106KB

MD5
5764627a81a77a4197a8e8383e943011

SHA1
16e3f84d8e1b2dacd3b85c85ba1f5bde41a961fa

SHA256
856422a4568c141501f6b6eafbbbdd189c64e39c585536a5272b04a9fbc64941

SHA512
7cca6ab879bb8e39dd8819435631d479131152b906b7628c570d7dc1d4adb11e09f1fbf8b283e0798befcfef874021d8faa5d66d766ae3d08593868b981bdcb2

Download Submit
memory/2152-7-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2152-19-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2796-9-0x00000000001C0000-0x00000000001E1000-memory.dmp

Filesize
132KB

Download
memory/2796-15-0x00000000001C0000-0x00000000001E1000-memory.dmp

Filesize
132KB

Download
memory/2796-18-0x00000000001C0000-0x00000000001E1000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads