remcos | 3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959

General

Target

3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
Size

1007KB
MD5

cb2d0498f2bd4d8c4bb74fd0b865d47d
SHA1

5031c19d3d78d6490577d840d17132217cdd6f73
SHA256

3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959
SHA512

d8fe307ca71467ce436f053f53cb7c874d3eeb16c514eaf03f0f6b26a43699b6c147a557e6bf53c84df66cccec454dba569993cd2dcab4368c1d8df2157a8224
SSDEEP

12288:Np+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRz9FQn1:NpugRNJI1D39dlfGQrFUx9Fy1

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

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-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\International\Geo\Nation	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe

Executes dropped EXE 4 IoCs

pid	Process
4980	sbietrcl.exe
5692	sbietrcl.exe
4564	sbietrcl.exe
4348	sbietrcl.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-1-5-21-446031748-3036493239-2009529691-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4980 set thread context of 4564	4980	sbietrcl.exe	102
PID 5692 set thread context of 4348	5692	sbietrcl.exe	103

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 4 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	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.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 18 IoCs

pid	Process
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
4980	sbietrcl.exe
4980	sbietrcl.exe
4980	sbietrcl.exe
4980	sbietrcl.exe
4980	sbietrcl.exe
4980	sbietrcl.exe
5692	sbietrcl.exe
5692	sbietrcl.exe
5692	sbietrcl.exe
5692	sbietrcl.exe
5692	sbietrcl.exe
5692	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
Token: SeDebugPrivilege	4980	sbietrcl.exe
Token: SeDebugPrivilege	5692	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4564	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 4980	4772	cmd.exe	98
PID 4772 wrote to memory of 4980	4772	cmd.exe	98
PID 4772 wrote to memory of 4980	4772	cmd.exe	98
PID 2856 wrote to memory of 5692	2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe	99
PID 2856 wrote to memory of 5692	2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe	99
PID 2856 wrote to memory of 5692	2856	3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe	99
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 4980 wrote to memory of 4564	4980	sbietrcl.exe	102
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103
PID 5692 wrote to memory of 4348	5692	sbietrcl.exe	103

C:\Users\Admin\AppData\Local\Temp\3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe
"C:\Users\Admin\AppData\Local\Temp\3678b2d667a76db63dddde84fd58aae502bc9dca359a8020f04957b995c70959.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856
- 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:5692
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:4348

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4772
- 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:4980
- - 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:4564

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

Query Registry

1

T1012

System Information Discovery

2

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\Local\Microsoft\CLR_v2.0_32\UsageLogs\sbietrcl.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

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

Filesize
1016KB

MD5
7578de230260a46f6c7b766664ab6698

SHA1
7894dc4427efeb185073d6b0a77edfc4a957113e

SHA256
bed2f5f73d5dc3dfdd01fce7c6575adcd2cd1fa7fa77ffb1b9e8ff2cc8e7f793

SHA512
25a4fe0af0dc9118bbe1a511863249f295e2879aeac43fb805cbf66917234656d8b3d29cb4c99d5defddeefdce59cc32defd3e6c96a69ddc5d3ea7fe69ac9262

Download Submit
memory/2856-25-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-27-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-6-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-18-0x0000000075262000-0x0000000075263000-memory.dmp

Filesize
4KB

Download
memory/2856-19-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-2-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-23-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-1-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/2856-0-0x0000000075262000-0x0000000075263000-memory.dmp

Filesize
4KB

Download
memory/2856-5-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/4564-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4980-38-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/4980-24-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/5692-28-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/5692-43-0x0000000075260000-0x0000000075811000-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