remcos | bdc5fbb4cc07e1809b11706a29aa9ed5017c45aa69bb84b51eb73a66971ba987

General

Target

5d46f742f285d70937156f3034d5bf70N.exe
Size

915KB
MD5

5d46f742f285d70937156f3034d5bf70
SHA1

d95f0e1276cf6f0ebbcb768747bdd46764b9799a
SHA256

bdc5fbb4cc07e1809b11706a29aa9ed5017c45aa69bb84b51eb73a66971ba987
SHA512

42418beede0fd3a08add552bb7320259f32530e6912d9145961220146c94246e2d5a0b95986fd660739801270b6885452716fdadf00a50f4eb86fa7db33197df
SSDEEP

12288:IVVv9lVtHIJs8n2JzIMojUD6mrf3US1biPz/SUPhHU11dremO3aJ9GcAaLdOi+:KvTVX8CzIhBmrfM7ZPYrexKJ0cX5O

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

magaji.duckdns.org:2404

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-ORKMG9
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 2984 set thread context of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94

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	5d46f742f285d70937156f3034d5bf70N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d46f742f285d70937156f3034d5bf70N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2984	5d46f742f285d70937156f3034d5bf70N.exe
2984	5d46f742f285d70937156f3034d5bf70N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	5d46f742f285d70937156f3034d5bf70N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4292	5d46f742f285d70937156f3034d5bf70N.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 4820	2984	5d46f742f285d70937156f3034d5bf70N.exe	93
PID 2984 wrote to memory of 4820	2984	5d46f742f285d70937156f3034d5bf70N.exe	93
PID 2984 wrote to memory of 4820	2984	5d46f742f285d70937156f3034d5bf70N.exe	93
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94
PID 2984 wrote to memory of 4292	2984	5d46f742f285d70937156f3034d5bf70N.exe	94

C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe
"C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe
  "C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe"
  2⤵
  PID:4820
- C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe
  "C:\Users\Admin\AppData\Local\Temp\5d46f742f285d70937156f3034d5bf70N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4292

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

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
815e5cde6f8b73879e923994d028d30f

SHA1
e79c2be44429e4568261548c325066d16ef376c0

SHA256
0bdae41c58152aafa450da79ffbd01eb1818d031b9cbab2f4bcca1448c3f4d0b

SHA512
d6d4eb004a45bac2e41698d66b61670407867832fb1d8bc5be50a0d91108faf30d2bb72a21312a33ae95586a432252f32c6d3e34479e3d93d110c331c14d4260

Download Submit
memory/2984-6-0x0000000006740000-0x0000000006758000-memory.dmp

Filesize
96KB

Download
memory/2984-2-0x0000000005A90000-0x0000000006034000-memory.dmp

Filesize
5.6MB

Download
memory/2984-3-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/2984-4-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/2984-5-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/2984-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2984-7-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2984-8-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/2984-9-0x0000000006780000-0x0000000006840000-memory.dmp

Filesize
768KB

Download
memory/2984-10-0x0000000006A30000-0x0000000006ACC000-memory.dmp

Filesize
624KB

Download
memory/2984-1-0x00000000009F0000-0x0000000000ADA000-memory.dmp

Filesize
936KB

Download
memory/2984-16-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4292-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4292-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing