remcos | b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588

General

Target

b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe
Size

4.8MB
MD5

db497afaaa939e9bd7706520873de8c7
SHA1

9a032838d8587bd1e039220bb1bbe28b1c569ea5
SHA256

b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588
SHA512

a872f202d114739d2c8dbcafafdf88191adf6a3df51ab36c595371ab0b0343d3e8a838b07443f58d2d36251de8c027ad46a642317132bb5f088a70842b4f7959
SSDEEP

98304:0qwXy+as4+EAF3bgrYIseiqvGyS0Z4VeNzXrCAuO9X2egv+qvDfLdYEnrQtp:0qw1VFkrOeXGt24VezXr1y+4DjdBnEX

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.42.12.75:2406

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
010325
keylog_path
%AppData%
mouse_option
false
mutex
010325-YWFFXL
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe

Executes dropped EXE 2 IoCs

pid	Process
4648	iScrPaint.exe
920	iScrPaint.exe

Loads dropped DLL 3 IoCs

pid	Process
4648	iScrPaint.exe
920	iScrPaint.exe
4960	WizardManage.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 920 set thread context of 4780	920	iScrPaint.exe	85

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WizardManage.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iScrPaint.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iScrPaint.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4648	iScrPaint.exe
920	iScrPaint.exe
920	iScrPaint.exe
4780	cmd.exe
4780	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
920	iScrPaint.exe
4780	cmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4960	WizardManage.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 4648	1644	b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe	82
PID 1644 wrote to memory of 4648	1644	b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe	82
PID 1644 wrote to memory of 4648	1644	b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe	82
PID 4648 wrote to memory of 920	4648	iScrPaint.exe	84
PID 4648 wrote to memory of 920	4648	iScrPaint.exe	84
PID 4648 wrote to memory of 920	4648	iScrPaint.exe	84
PID 920 wrote to memory of 4780	920	iScrPaint.exe	85
PID 920 wrote to memory of 4780	920	iScrPaint.exe	85
PID 920 wrote to memory of 4780	920	iScrPaint.exe	85
PID 920 wrote to memory of 4780	920	iScrPaint.exe	85
PID 4780 wrote to memory of 4960	4780	cmd.exe	94
PID 4780 wrote to memory of 4960	4780	cmd.exe	94
PID 4780 wrote to memory of 4960	4780	cmd.exe	94
PID 4780 wrote to memory of 4960	4780	cmd.exe	94
PID 4780 wrote to memory of 4960	4780	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe
"C:\Users\Admin\AppData\Local\Temp\b5bd1068644f0c38e7aa1cb38dcc40eacf146be9b43d8fd865fddee61ea9a588.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\iScrPaint.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\iScrPaint.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4648
- - C:\Users\Admin\AppData\Roaming\HostdockerMyp_beta\iScrPaint.exe
    C:\Users\Admin\AppData\Roaming\HostdockerMyp_beta\iScrPaint.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:920
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:4780
    - - C:\Users\Admin\AppData\Local\Temp\WizardManage.exe
        
        C:\Users\Admin\AppData\Local\Temp\WizardManage.exe
        5⤵
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\49918c75

Filesize
1.6MB

MD5
12b66d9895b2ca06ee6519f55bd3b749

SHA1
f7084ccfc45ad3fe893b1d24612ec00a2b60aa14

SHA256
9fdab426b5aabd827731510becea1819db84d281e8979d60d22bc49f96fab1c4

SHA512
361b7d33b681fe63a47cfd74894aed57f8a19e8a3652776e761ca62303bfd7c19382118b8531ce017a97d2800ab43a96f398cd5d33e157467f3138e002145ee4

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\WebUI.dll

Filesize
7.6MB

MD5
6c1f62d8fc49a7537c3690f7c420b89d

SHA1
29de3dc820b2ee1fbcfe5dfa417fdb5f1a5f3a9c

SHA256
5013320be9bc082cf6d9a4cf70929b38fe3ca95f4a6a8393f272d93a4a9966db

SHA512
dae8363bb3788b9165c18d638ce44addbb3a901c21b5b3892672ea8ad14cae9fd2fb56c818400c6b658252f9e6ba52534d0e1f09b6cd3c9a88e61386948347fa

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\iScrPaint.exe

Filesize
1.8MB

MD5
098ac4621ee0e855e0710710736c2955

SHA1
ce7b88657c3449d5d05591314aaa43bd3e32bdaa

SHA256
46afbf1cbd2e1b5e108c133d4079faddc7347231b0c48566fd967a3070745e7f

SHA512
3042785b81bd18b641f0a2b5d8aec8ef86f9bf1269421fb96d1db35a913e744eaff16d9da7a02c8001435d59befb9f26bc0bbfa6e794811abf4282ed68b185fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\lacquey.deb

Filesize
40KB

MD5
6de7326216218b8195340d815dc75262

SHA1
017f3895b98d9ed7ec02bc66945ec37aaed999e0

SHA256
3a021200937a56e8dad94ffa8ac24fbbe55d318e64fce36a61efe115f9de3653

SHA512
0060c2bf8c47ef5eb23abc4b63c597704501cc1dad2c9977e5e50a42d965ec99b7dcb54f14fbcc472e372f5d707d6bb075ff0e5edd0e72001c7dac58d5eaec57

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\stomatopod.cfg

Filesize
1.1MB

MD5
c5ded003ddd953a1284dd2cfafd0e632

SHA1
b3f974c9a9d035cc1ec990fba3ec5d12c5984073

SHA256
3bb40e1fb837a6c138db1aa048c4ecfb51cb91e99e37c6fcbd41fc48b7948d60

SHA512
ff7dea3773bebb92a6d92d2051b60fa428fc304ea24dbf66d44a6ae85bef4a1370899423997609eafd973ee8ffeb685ade27af0d42a6cc800aa573dfccc9c6d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\WizardManage.exe

Filesize
433KB

MD5
fea067901f48a5f1faf7ca3b373f1a8f

SHA1
e8abe0deb87de9fe3bb3a611234584e9a9b17cce

SHA256
bf24b2f3e3a3c60ed116791b99e5421a4de34ac9c6e2201d34ab487e448ce152

SHA512
07c83a2d3d5dd475bc8aa48eba9b03e8fb742dbbd7bd623ed05dc1086efed7dfd1c1b8f037ee2e81efba1de58ea3243d7c84ac8b484e808cd28765f9c7517023

Download Submit
memory/920-36-0x00000000746E0000-0x000000007485B000-memory.dmp

Filesize
1.5MB

Download
memory/920-37-0x00007FFDBA770000-0x00007FFDBA965000-memory.dmp

Filesize
2.0MB

Download
memory/920-38-0x00000000746E0000-0x000000007485B000-memory.dmp

Filesize
1.5MB

Download
memory/4648-29-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/4648-23-0x00007FFDBA770000-0x00007FFDBA965000-memory.dmp

Filesize
2.0MB

Download
memory/4648-22-0x00000000746E0000-0x000000007485B000-memory.dmp

Filesize
1.5MB

Download
memory/4780-42-0x00007FFDBA770000-0x00007FFDBA965000-memory.dmp

Filesize
2.0MB

Download
memory/4780-43-0x00000000746E0000-0x000000007485B000-memory.dmp

Filesize
1.5MB

Download
memory/4780-46-0x00000000746E0000-0x000000007485B000-memory.dmp

Filesize
1.5MB

Download
memory/4960-56-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-54-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-53-0x00007FFDBA770000-0x00007FFDBA965000-memory.dmp

Filesize
2.0MB

Download
memory/4960-57-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-58-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-59-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-60-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-61-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-62-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-63-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-64-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-65-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4960-66-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download

Analysis

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