remcos | b81525a60e921736c65c35187172405f6d5f4d2d35ef74f0433b9d358104062d

General

Target

c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe
Size

26.1MB
MD5

0e5a4c1e70fcd1e74546265ce1417092
SHA1

bc9b2b30cd5c2211bd2b68acbe7fedc26f5cbae3
SHA256

c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5
SHA512

bf3f521dbfb6e65b562358a30c3bac84201517247a5e82c63552be894b3581c4dcd89168c469e19900ab69dd3d8f5ae1a9d001fcd6f1fe8b097099fa5f1cd3e0
SSDEEP

196608:MYreJFZthHBrDyEu+sx5EzKfkng5Lvr+OvGgEB1lgC8B4x:MQeJFZvHBDlRsjeKsg5NGgElgC8B4

Score

10^/10

remcos two discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

two

C2

101.99.75.178:2404

101.99.75.178:8080

101.99.75.178:80

101.99.75.178:4899

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
sql.exe
copy_folder
sql
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
hdkj-8FW7P8
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

Executes dropped EXE 1 IoCs

pid	Process
4836	sql.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\hdkj-8FW7P8 = "\"C:\\Users\\Admin\\AppData\\Roaming\\sql\\sql.exe\""	BitLockerToGo.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hdkj-8FW7P8 = "\"C:\\Users\\Admin\\AppData\\Roaming\\sql\\sql.exe\""	BitLockerToGo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1440 set thread context of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91

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	BitLockerToGo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sql.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91
PID 1440 wrote to memory of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91
PID 1440 wrote to memory of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91
PID 1440 wrote to memory of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91
PID 1440 wrote to memory of 3328	1440	c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe	91
PID 3328 wrote to memory of 4836	3328	BitLockerToGo.exe	92
PID 3328 wrote to memory of 4836	3328	BitLockerToGo.exe	92
PID 3328 wrote to memory of 4836	3328	BitLockerToGo.exe	92

C:\Users\Admin\AppData\Local\Temp\c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe
"C:\Users\Admin\AppData\Local\Temp\c600c0c9c7ffab8864c316ceddc05ca052c7a2ebc455a997e23d8bb02d430fd5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3328
- - C:\Users\Admin\AppData\Roaming\sql\sql.exe
    "C:\Users\Admin\AppData\Roaming\sql\sql.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\sql\sql.exe

Filesize
226KB

MD5
a64beab5d4516beca4c40b25dc0c1cd8

SHA1
d7ab35d89d9b348ccadf6f6b91259776be9b064e

SHA256
36fb87f4e3048659d91fb4250d07582bbbeda35a7a5839ca61aa0d85dc1bd63c

SHA512
26818459084194b5675e521ead75a0c2d2f1ae0299e63e05af645113caa8ed6dcdcdb1b499d24712db084a2e0948bb4a0a5e9ea7e0adfe28a99911256e565328

Download Submit
memory/1440-0-0x00007FF64BD80000-0x00007FF64D847000-memory.dmp

Filesize
26.8MB

Download
memory/1440-3-0x00007FF64BD80000-0x00007FF64D847000-memory.dmp

Filesize
26.8MB

Download
memory/1440-7-0x00007FF64BD80000-0x00007FF64D847000-memory.dmp

Filesize
26.8MB

Download
memory/3328-6-0x00000000006B0000-0x0000000000732000-memory.dmp

Filesize
520KB

Download
memory/3328-8-0x00000000006B0000-0x0000000000732000-memory.dmp

Filesize
520KB

Download
memory/3328-9-0x00000000006B0000-0x0000000000732000-memory.dmp

Filesize
520KB

Download
memory/3328-10-0x00000000006B0000-0x0000000000732000-memory.dmp

Filesize
520KB

Download
memory/3328-21-0x00000000006B0000-0x0000000000732000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads