remcos | 2dfb559709a3aaaa4d1be98ae6262000cbaaac29f9b0f1e2ca7bafc33d5c07e6

General

Target

SWIFT050924.vbs
Size

691KB
MD5

2017ec3e440a42016679cfca89021367
SHA1

b28018bd754b0fa5170c9071fb4a615741b4dd19
SHA256

cf932f84c26f6d3665b03afbe44e50bf77342af73b4a1f101d48a5750fb3bf23
SHA512

3e29904829f4ea7ae5fcde95ccc3b4e9b440f60a1de183fe6ba7cd822d04e0976ff6e6a1bdb92a5da935e36a4485cbc982eb0d7d02c337c476c45724450efb02
SSDEEP

12288:xLtzjh8P+o6/vW/kiZI5sjLXjJkMz4Ss47DcShFXNGh/WmDj+VGP:dt3h9/uJZSsjLlkMdcSzdIuGP

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

camzeroconnect.duckdns.org:14645

Attributes

audio_folder
MicRecords
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
remcos
mouse_option
false
mutex
Rmc-GT4655
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

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	x.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 4804	2464	x.exe	84

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 1 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	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 2464	3316	WScript.exe	83
PID 3316 wrote to memory of 2464	3316	WScript.exe	83
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84
PID 2464 wrote to memory of 4804	2464	x.exe	84

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\SWIFT050924.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Users\Admin\AppData\Local\Temp\x.exe
  "C:\Users\Admin\AppData\Local\Temp\x.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4804

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\x.exe

Filesize
474KB

MD5
aeb8bba5e93fa1090d72a4e603c6fd72

SHA1
19bac3f94a320ab7ed10d2ab8dc5a7609d55800f

SHA256
d1019a57fa406376bf03b65c28aa50cc58377c44a6883bbeb9d2b59e7add2d98

SHA512
8a330c4d9efe0af40b2e98d3d571a69598b5bfd64ddb7723ff3a2db668a9550ceb1a3942bc5110e00543509d46ba88d8fb9623c2660626ffb298ead4dd802b9b

Download Submit
memory/2464-21-0x00007FFF9EEC0000-0x00007FFF9F981000-memory.dmp

Filesize
10.8MB

Download
memory/2464-11-0x00007FFF9EEC3000-0x00007FFF9EEC5000-memory.dmp

Filesize
8KB

Download
memory/2464-12-0x000001F572120000-0x000001F57219C000-memory.dmp

Filesize
496KB

Download
memory/2464-13-0x000001F573E20000-0x000001F573E9A000-memory.dmp

Filesize
488KB

Download
memory/2464-14-0x00007FFF9EEC0000-0x00007FFF9F981000-memory.dmp

Filesize
10.8MB

Download
memory/2464-16-0x000001F572550000-0x000001F572558000-memory.dmp

Filesize
32KB

Download
memory/2464-15-0x000001F572530000-0x000001F57253C000-memory.dmp

Filesize
48KB

Download
memory/4804-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4804-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing