remcos | c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41d

General

Target

c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
Size

2.2MB
MD5

44f2795e1bda2608db6b626bcf462040
SHA1

e78ec0a54adc87d7333eeb602ad8caaf9647b071
SHA256

c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41d
SHA512

cf3dd9c1b0e1dfee5cb0c4cb58c89130c899d27f44bac8b254d267e96712ddf0afa406c271381e3062633707b8d1829a1aa33ba55f5d7ceb4f729b6cc6aec9ea
SSDEEP

24576:HD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJPwxH38:Hp7E+QrFUBgq2Snq38

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

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe

Executes dropped EXE 2 IoCs

pid	Process
1228	sbietrcl.exe
1864	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1228 set thread context of 1864	1228	sbietrcl.exe	96

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
1228	sbietrcl.exe
1228	sbietrcl.exe
1228	sbietrcl.exe
1228	sbietrcl.exe
1228	sbietrcl.exe
1228	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
Token: SeDebugPrivilege	1228	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1864	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 1228	4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe	94
PID 4416 wrote to memory of 1228	4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe	94
PID 4416 wrote to memory of 1228	4416	c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe	94
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96
PID 1228 wrote to memory of 1864	1228	sbietrcl.exe	96

C:\Users\Admin\AppData\Local\Temp\c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.exe
"C:\Users\Admin\AppData\Local\Temp\c7f380436083b43aae0be3855e9c1b69775d0a1cd3ba1d737f8ad4e3ed38d41dN.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:4416
- 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:1228
- - 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:1864

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4508,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=1904 /prefetch:8
1⤵
PID:3748

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\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
2.2MB

MD5
88fd6b2003942d9a04f12ea1a29906cd

SHA1
37ddbaf2f797e1768e6fde35a09fb1bec499e6ec

SHA256
d8810fee7fdb921f9a2a2fc1424f2fa62c1e91bf54c966d4eea82a17d357b4fd

SHA512
3a0f9cb4ce0c71e50c896e35bfbfee5af52999e9e22143f8f26734669bb7c6f09a13a2ffdbe0d0cb532876cfa6addac5fcfb8dfe7ad50d5266a658bed24d0b09

Download Submit
memory/1228-47-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/1228-35-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/1228-34-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/1228-33-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/1228-32-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/1864-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1864-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4416-18-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

Filesize
4KB

Download
memory/4416-2-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-0-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

Filesize
4KB

Download
memory/4416-5-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-6-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-20-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-31-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-1-0x0000000074DB0000-0x0000000075361000-memory.dmp

Filesize
5.7MB

Download
memory/4416-19-0x0000000074DB0000-0x0000000075361000-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