remcos | e477de6a58c445f61c2cf4b5ba8b973c09f1a957d05e99c49e4413bbda34681d

General

Target

Scan5438.exe
Size

1.0MB
MD5

d916f2a1067315592820e618ed09014e
SHA1

59b7aa9dbdcd1a223535223096d7dd6089bceabe
SHA256

e477de6a58c445f61c2cf4b5ba8b973c09f1a957d05e99c49e4413bbda34681d
SHA512

adf2d22a5d0f85a3bbb4c56bdf19cb48be9ab49ce6b9c06568b8c301a99e9de47b1e3a6477cfe4c2092e63895ecda683b4658a27fb7fcfc6f745bf473c268bf5
SSDEEP

24576:c8NBtiFq8+Hrl8dG0q51MSW6gAO9wyGKmStHo:jtyr+oG0q51bW6RORGdkH

Score

10^/10

remcos fiver20thaug discovery rat

Malware Config

Extracted

Family

remcos

Botnet

fiver20thAug

C2

rugar.duckdns.org:34046

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-DNAOTM
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 2844	2516	Scan5438.exe	31

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	Scan5438.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2516	Scan5438.exe
2516	Scan5438.exe
2516	Scan5438.exe
2516	Scan5438.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	Scan5438.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2844	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2732	2516	Scan5438.exe	30
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31
PID 2516 wrote to memory of 2844	2516	Scan5438.exe	31

C:\Users\Admin\AppData\Local\Temp\Scan5438.exe
"C:\Users\Admin\AppData\Local\Temp\Scan5438.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
8f6eafcb530e8e5bea2b7fb45d1e0827

SHA1
59426ec0a2f3e9fb6bedb984831210fd4adb9a6e

SHA256
be57ceb2bfaf5e35c106ed585488a79febe153921222963772f3ad7576772c2f

SHA512
07c2979b5efcc02e80ae3037336c486ee285edff94b8e994b36992b9fa838a65898f26810950d6a8ddd0b393994a4ef1dd6de81a7a44bb94bed5f4721032ae39

Download Submit
memory/2516-19-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-1-0x0000000000090000-0x0000000000198000-memory.dmp

Filesize
1.0MB

Download
memory/2516-2-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2516-3-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-4-0x00000000051B0000-0x0000000005270000-memory.dmp

Filesize
768KB

Download
memory/2516-0-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/2844-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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