remcos | 94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aa

General

Target

94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Size

482KB
MD5

6520492a4e7f9bc4dfb068de1c7b6450
SHA1

b5c2086a01528386482826ad243c2711e04200fb
SHA256

94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aa
SHA512

dd8d2d9a22ff521496a908f7dd5de7e25c4d7fd0a56d917a0ba29a5d160a293890f5c397e1ae7bb8a7488d4795221f819d810826b5d533ad1d61e63c438b2565
SSDEEP

6144:KTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZXAXkcr8T4:KTlrYw1RUh3NFn+N5WfIQIjbs/ZX/T4

Score

10^/10

remcos mix discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

MIX

C2

liveos.zapto.org:2404

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
music.exe
copy_folder
db
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
true
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
ire
mouse_option
false
mutex
Rmc-GHRUZU
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

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	music.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	music.exe

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe

Executes dropped EXE 1 IoCs

pid	Process
1456	music.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	music.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-GHRUZU = "\"C:\\ProgramData\\db\\music.exe\""	music.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 2396	1456	music.exe	87

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	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	music.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1456	music.exe
1456	music.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1456	music.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1456	1260	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe	86
PID 1260 wrote to memory of 1456	1260	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe	86
PID 1260 wrote to memory of 1456	1260	94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe	86
PID 1456 wrote to memory of 2396	1456	music.exe	87
PID 1456 wrote to memory of 2396	1456	music.exe	87
PID 1456 wrote to memory of 2396	1456	music.exe	87
PID 1456 wrote to memory of 2396	1456	music.exe	87

C:\Users\Admin\AppData\Local\Temp\94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe
"C:\Users\Admin\AppData\Local\Temp\94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aaN.exe"
1⤵
- Adds policy Run key to start application
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1260
- C:\ProgramData\db\music.exe
  "C:\ProgramData\db\music.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1456
- - \??\c:\program files (x86)\internet explorer\iexplore.exe
    "c:\program files (x86)\internet explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

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

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Downloads

C:\ProgramData\db\music.exe

Filesize
482KB

MD5
6520492a4e7f9bc4dfb068de1c7b6450

SHA1
b5c2086a01528386482826ad243c2711e04200fb

SHA256
94465e214c05a6b477f6310957448e7d891ce37c960e36d246294eb6843081aa

SHA512
dd8d2d9a22ff521496a908f7dd5de7e25c4d7fd0a56d917a0ba29a5d160a293890f5c397e1ae7bb8a7488d4795221f819d810826b5d533ad1d61e63c438b2565

Download Submit
memory/2396-33-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-34-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-35-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-37-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-36-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-38-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-39-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-40-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-41-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-43-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-44-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-45-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-46-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-48-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-49-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-50-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-51-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-52-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-53-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-54-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-55-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-56-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-57-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-58-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-59-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-61-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-62-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-63-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-64-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-66-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-65-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-68-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download
memory/2396-67-0x0000000001220000-0x00000000012A2000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads