remcos | 8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79

General

Target

8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
Size

1.0MB
MD5

3fefcce2a73211465409608589fcf1a6
SHA1

891e41f2790883189ccdcfb49cdb1b9957898341
SHA256

8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79
SHA512

c5de9eddc921dc495c0f373ebc7488609d003271e908e1eb0b528042c9ee2e11bc6e51c81b1f24b6c0e8368bd8a21627827cd305c487d7b906c2d92f06d073ac
SSDEEP

12288:/p+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AkK:/pugRNJI1D39dlfGQrFUxwAeAkK

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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe

Executes dropped EXE 4 IoCs

pid	Process
4948	sbietrcl.exe
4972	sbietrcl.exe
2700	sbietrcl.exe
5564	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4948 set thread context of 2700	4948	sbietrcl.exe	100
PID 4972 set thread context of 5564	4972	sbietrcl.exe	101

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	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.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 24 IoCs

pid	Process
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4948	sbietrcl.exe
4972	sbietrcl.exe
4972	sbietrcl.exe
4972	sbietrcl.exe
4972	sbietrcl.exe
4972	sbietrcl.exe
4972	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
Token: SeDebugPrivilege	4948	sbietrcl.exe
Token: SeDebugPrivilege	4972	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 4948	1444	cmd.exe	96
PID 1444 wrote to memory of 4948	1444	cmd.exe	96
PID 1444 wrote to memory of 4948	1444	cmd.exe	96
PID 5116 wrote to memory of 4972	5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe	97
PID 5116 wrote to memory of 4972	5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe	97
PID 5116 wrote to memory of 4972	5116	8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe	97
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4948 wrote to memory of 2700	4948	sbietrcl.exe	100
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101
PID 4972 wrote to memory of 5564	4972	sbietrcl.exe	101

C:\Users\Admin\AppData\Local\Temp\8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.exe
"C:\Users\Admin\AppData\Local\Temp\8b2be7e5b6f709d345242f0b8482617b7261eee534a0d099b84273c823211a79.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:5116
- 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:4972
- - 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:5564

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:1444
- 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:4948
- - 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:2700

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
1.0MB

MD5
60d19deb1f1750e8aa5e5baa8518bccc

SHA1
2342985bbc2837a82eaa24252771313fe41baf24

SHA256
6232e3bc46a5b9a33546c8da7f765b3be196e010d0756515399d07d215853239

SHA512
3c1d23b94c2e9721136a76d95ac4ce949b20ecb3a007578a1f61c36d2af7fac4d638caf1ad2d941e4cdddf96728d3f8f1ca718d7e15ca5f3c56911f76c4f96a8

Download Submit
memory/2700-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2700-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4948-39-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-23-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-25-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-24-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4972-29-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4972-44-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-18-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/5116-28-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-26-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-19-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/5116-6-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-5-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-2-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/5116-1-0x0000000074E40000-0x00000000753F1000-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