remcos | 1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6e

General

Target

1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
Size

1.2MB
MD5

e97fcc0daa8d53e67427a23588e55360
SHA1

4b8c28d9e4445ca6938918c97b57a383afa55b86
SHA256

1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6e
SHA512

83e76f8483ce4681a1d2b7bea5b62604dc3f14f81066d4e520c5ee1a0764e834cd80c73d7a72db8c8717d4180b3eb8d7743c39a3b3989e8de705492912674cdf
SSDEEP

24576:SD39dlfGQrFUspugRNJI2DJnUw9W/j+Be1AM:SF+QrFUBgq25e1AM

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe

Executes dropped EXE 2 IoCs

pid	Process
3236	sbietrcl.exe
3840	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3236 set thread context of 3840	3236	sbietrcl.exe	98

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	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.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
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
3236	sbietrcl.exe
3236	sbietrcl.exe
3236	sbietrcl.exe
3236	sbietrcl.exe
3236	sbietrcl.exe
3236	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
Token: SeDebugPrivilege	3236	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3840	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 3236	4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe	93
PID 4028 wrote to memory of 3236	4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe	93
PID 4028 wrote to memory of 3236	4028	1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe	93
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98
PID 3236 wrote to memory of 3840	3236	sbietrcl.exe	98

C:\Users\Admin\AppData\Local\Temp\1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.exe
"C:\Users\Admin\AppData\Local\Temp\1e41a2abb16c585715bd566a2746b1b25c0b8305619c4c11ce00fdfc3c1d0d6eN.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:4028
- 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:3236
- - 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:3840

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
1.2MB

MD5
c41760274d850041ec53573aaa04f767

SHA1
5933f704ec5410688abec55b34a142774f1ae448

SHA256
63fe10acdec825d3188ab92537742e624a96c7d2b8698ca718d9945c9f2ac6de

SHA512
4f602265e4fdbe6093b90f74726d9d58cc16d5efea71bad4050f5046f3f382209661d634a3d4a9a03afa19fde7e930615e8fe02a57780ab4a52bc156a393c336

Download Submit
memory/3236-45-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3236-34-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3236-33-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3236-32-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3236-31-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3236-30-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/3840-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3840-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4028-16-0x0000000075252000-0x0000000075253000-memory.dmp

Filesize
4KB

Download
memory/4028-0-0x0000000075252000-0x0000000075253000-memory.dmp

Filesize
4KB

Download
memory/4028-2-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-3-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-4-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-1-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-18-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-17-0x0000000075250000-0x0000000075801000-memory.dmp

Filesize
5.7MB

Download
memory/4028-29-0x0000000075250000-0x0000000075801000-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