remcos | 8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 20:40

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General

Target

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe
Size

96KB
MD5

04cf5403e63e40ab134a0ec6c54cdc16
SHA1

b412f76a431fb2f1351029f416d74d086e1fb487
SHA256

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96
SHA512

5f8991687dd76bdfa08940922af307936c13ad65832505565a8dae9e0398685a2c835b680ee0c02c4ae82f952ae7e93c2e546af8b761ea366e88721f6874ff90
SSDEEP

1536:C/sBaIs0SF9PhCaeBzfqpVwotboHsTPmQtWgfnre6tgiPZqWSunFJ:eaaCzf+VBtbJT7t7fnTZqTuFJ

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.162.149.42:7118

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-YP127Q
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

description pid process target process

PID 4972 created 3504 4972 8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe Explorer.EXE

description	pid	process	target process
PID 4972 created 3504	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	Explorer.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fsdfrtnzn = "C:\\Users\\Admin\\AppData\\Roaming\\Fsdfrtnzn.exe"	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

description	pid	process	target process
PID 4972 set thread context of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

pid process

4972 8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

pid	process
4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

description	pid	process
Token: SeDebugPrivilege	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe
Token: SeDebugPrivilege	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe

description	pid	process	target process
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe
PID 4972 wrote to memory of 3320	4972	8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3504
- C:\Users\Admin\AppData\Local\Temp\8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe
  "C:\Users\Admin\AppData\Local\Temp\8b095c096ed84baea80e9d7bd081e318ce4f741f8299b99c5167dfdadb5f2c96.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3320-1099-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3320-1101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4972-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4972-1-0x0000000000120000-0x000000000013E000-memory.dmp

Filesize
120KB

Download
memory/4972-2-0x0000000004FD0000-0x0000000005574000-memory.dmp

Filesize
5.6MB

Download
memory/4972-3-0x0000000004B10000-0x0000000004BA2000-memory.dmp

Filesize
584KB

Download
memory/4972-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-5-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4972-6-0x0000000005F40000-0x000000000605C000-memory.dmp

Filesize
1.1MB

Download
memory/4972-7-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-24-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-66-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-70-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-68-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-64-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-62-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-60-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-58-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-56-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-54-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-50-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-48-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-46-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-52-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-42-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-40-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-38-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-36-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-35-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-32-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-30-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-26-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-22-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-20-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-18-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-16-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-14-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-12-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-10-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-8-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-44-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-28-0x0000000005F40000-0x0000000006057000-memory.dmp

Filesize
1.1MB

Download
memory/4972-1081-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-1083-0x00000000061A0000-0x00000000061EC000-memory.dmp

Filesize
304KB

Download
memory/4972-1082-0x0000000006100000-0x0000000006196000-memory.dmp

Filesize
600KB

Download
memory/4972-1086-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-1088-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-1089-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-1090-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4972-1091-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-1092-0x00000000062A0000-0x00000000062F4000-memory.dmp

Filesize
336KB

Download
memory/4972-1100-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download