remcos | 0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134

General

Target

0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe
Size

1.0MB
MD5

fc8e03a9454af696d8825eb6bbe82f90
SHA1

fbdaba556ea8fa0a902667d42347ff078279f36f
SHA256

0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134
SHA512

72b6c3d00b75d597f3291f07dd7b1f698b8b284f5a09084e6f5db759a8fb9b88932318bbcaa2381cbc5ab7b1def9dc0316b504c09db52955a022373689d21ce4
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCDH1MJ55AxaiKDeLRr:7JZoQrbTFZY1iaCLQ56aifh

Score

10^/10

remcos oct 28 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

OCT 28

C2

myhost001.myddns.me:9373

103.161.133.98:4804

103.161.133.98:9373

myhost001.myddns.me:4804

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-47R6I4
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
Remcos family
remcos

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\turbinals.vbs	turbinals.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	turbinals.exe

Loads dropped DLL 1 IoCs

pid	Process
2148	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000900000001659b-13.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2764	2384	turbinals.exe	31

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 3 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	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	turbinals.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2384	turbinals.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	svchost.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2384	2148	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe	30
PID 2148 wrote to memory of 2384	2148	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe	30
PID 2148 wrote to memory of 2384	2148	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe	30
PID 2148 wrote to memory of 2384	2148	0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe	30
PID 2384 wrote to memory of 2764	2384	turbinals.exe	31
PID 2384 wrote to memory of 2764	2384	turbinals.exe	31
PID 2384 wrote to memory of 2764	2384	turbinals.exe	31
PID 2384 wrote to memory of 2764	2384	turbinals.exe	31
PID 2384 wrote to memory of 2764	2384	turbinals.exe	31

C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe
"C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\enterogenous\turbinals.exe
  "C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134N.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
21365807750ada924e196f2595852f14

SHA1
4595cd0c58f8d84e66ac75db213796121065aba6

SHA256
2bea73abdace62050bdc06a14375ec4050e4b69191a984633b540414130dc25a

SHA512
8e71e3b29d101984f4aae9fdb28aa20289d2a4bdfe28709a4fe2c2d827b90cff15defdf726aea2c1940b572ed724b8370ca319c31e442edbf216fa86e98972f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\overfertilize

Filesize
174KB

MD5
32ec591fa73cb29e3771a6515d1cddf6

SHA1
5713e17a805078d30c343670c3e73623f19b36b2

SHA256
9168093424ff90ffc69232e9cfd3cf137de4bdb8cb935deea45f5a693d6386aa

SHA512
4c1455cc93e04f6576430aee4b2058141cd64b6355ac2f51c1b47269e8426eae81ee931ddbfb8d77a352244bd076fd70e8118dfc53b0c656b4e3e442e2a2784c

Download Submit
\Users\Admin\AppData\Local\enterogenous\turbinals.exe

Filesize
1.0MB

MD5
fc8e03a9454af696d8825eb6bbe82f90

SHA1
fbdaba556ea8fa0a902667d42347ff078279f36f

SHA256
0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134

SHA512
72b6c3d00b75d597f3291f07dd7b1f698b8b284f5a09084e6f5db759a8fb9b88932318bbcaa2381cbc5ab7b1def9dc0316b504c09db52955a022373689d21ce4

Download Submit
memory/2148-11-0x0000000000D20000-0x0000000000E20000-memory.dmp

Filesize
1024KB

Download
memory/2384-31-0x0000000000260000-0x0000000000360000-memory.dmp

Filesize
1024KB

Download
memory/2764-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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