remcos | 1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58

General

Target

1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe
Size

1.7MB
MD5

2ba2caed8e7776c9895db0a3e5e0714c
SHA1

a3db8f2e22f6674ec60f6fbb11adf1bf65986827
SHA256

1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58
SHA512

5ca99a0247c154b78a48f0e1b9e663f4ed6f4f1a78f0ff0d93e8d8579d419051ace94d8b91d3889b83f4c227ed387641614365e0ee5e81f23f409654b86677ee
SSDEEP

24576:nIx+lXcmg/23DrVykOe1L2gj/EjuJajIA:nrlXc3kVJzBjIuo

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1500 set thread context of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92

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_wp.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 3240	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	91
PID 1500 wrote to memory of 3240	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	91
PID 1500 wrote to memory of 3240	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	91
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4832	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	92
PID 1500 wrote to memory of 4572	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	93
PID 1500 wrote to memory of 4572	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	93
PID 1500 wrote to memory of 4572	1500	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	93

C:\Users\Admin\AppData\Local\Temp\1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe
"C:\Users\Admin\AppData\Local\Temp\1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:3240
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:4572

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4372,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=3800 /prefetch:8
1⤵
PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

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

memory/1500-10-0x00007FF888EE0000-0x00007FF8899A1000-memory.dmp

Filesize
10.8MB

Download
memory/1500-1-0x00000277874A0000-0x00000277874A8000-memory.dmp

Filesize
32KB

Download
memory/1500-2-0x00007FF888EE0000-0x00007FF8899A1000-memory.dmp

Filesize
10.8MB

Download
memory/1500-3-0x00000277A1B90000-0x00000277A1C5E000-memory.dmp

Filesize
824KB

Download
memory/1500-0-0x00007FF888EE3000-0x00007FF888EE5000-memory.dmp

Filesize
8KB

Download
memory/4832-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-5-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4832-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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