remcos | dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4b

General

Target

dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
Size

903KB
MD5

48bd99be6b0f63e8f6cb8222275f6080
SHA1

3f2a535aff3d26f6bb3bd799a8f5a8dbcd286458
SHA256

dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4b
SHA512

4e369a68cfe44c019b19f35914b51d857a8eb33a974475b45b5604124924780f94feb0fb70ea83a1f2393d66fd24ff4e4a2e8ec5dad68d5c268873c943694b4f
SSDEEP

12288:tp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRz9MH:tpugRNJI1D39dlfGQrFUx9MH

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Executes dropped EXE 2 IoCs

pid	Process
2848	sbietrcl.exe
2736	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 2736	2848	sbietrcl.exe	30

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	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
Token: SeDebugPrivilege	2848	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2736	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 2848	796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe	29
PID 796 wrote to memory of 2848	796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe	29
PID 796 wrote to memory of 2848	796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe	29
PID 796 wrote to memory of 2848	796	dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe	29
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2736	2848	sbietrcl.exe	30

C:\Users\Admin\AppData\Local\Temp\dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe
"C:\Users\Admin\AppData\Local\Temp\dfc6da93f93521375a1c87f8a99b069c4440939f93d7bf90cf30c140eec0df4bN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:796
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2736

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
7291e8ddbd8b86a94e6ba885904e0386

SHA1
4d0cf5bd8c091e57b7cecfdc7f15201151e701a7

SHA256
861f07715c38379001fe0738ac7d89585e1ccd7b68cb62943cfeae1f7807433c

SHA512
d4002785b148ce1bdfc5107806d7c7c20e102988b719da9fe7e0c9facf47fc8d21d5a2a0538ea4777a842d12ebbf4557485b7434308777a58ea93d0d9d9e54ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab82E6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
909KB

MD5
2047f36eac2bf2ce6ad524c4e9f931d7

SHA1
4aad84421a349b23226931f2b5af4add51a73c81

SHA256
592e7521f7e9eed8912aae5cb1d36fb6fa1335733e0d2acc4d6568488a96365c

SHA512
94f24733085c27dc43853dcbe3597979468b28f6e085797ca566cf05d60bd5cfc804d8e5ef3fe70e4beba69ba1dcf3497efbacb7446ad0033b51bf6004c54621

Download Submit
memory/796-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-12-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-13-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-25-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-26-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-33-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/2736-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2736-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2848-56-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-34-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-35-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-45-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-44-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads