remcos | b4d1b79459e02f66fae43fa71b6422be611fc7595306875ad87eddaa0e07ac5c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 09:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Quotation.exe
Size

1.0MB
MD5

67b86e9595c2d0d2f44454ec239fda56
SHA1

1a44600a7b4e010174d99c152dc20fef1d84061a
SHA256

905eb3c354f4f1210442b25983482a2612d6354df9c3d26beb9a0bdaf1e9ac04
SHA512

73fb542c826f8e75683e7944f0f616d2317d17c5cc153610e7d2107c6da7458da00c89e797aa4f59c92d92095dcf884ef9474cf7ac5dcc4bf526aa8389486604
SSDEEP

24576:BHAXaxESQklIlQcZrVs+3FvrVOuHvKYKrVFmdGp7N1/TBt:BgAlFUrv3FjwuPKYaGK/t

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

185.241.208.87:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-7DRXD9
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1456	powershell.exe
5068	powershell.exe

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5108 set thread context of 4876	5108	Quotation.exe	104

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
5108	Quotation.exe
5108	Quotation.exe
5108	Quotation.exe
5108	Quotation.exe
5108	Quotation.exe
5108	Quotation.exe
5068	powershell.exe
1456	powershell.exe
5108	Quotation.exe
5108	Quotation.exe
5108	Quotation.exe
1456	powershell.exe
5068	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5108	Quotation.exe
Token: SeDebugPrivilege	1456	powershell.exe
Token: SeDebugPrivilege	5068	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 1456	5108	Quotation.exe	97
PID 5108 wrote to memory of 1456	5108	Quotation.exe	97
PID 5108 wrote to memory of 1456	5108	Quotation.exe	97
PID 5108 wrote to memory of 5068	5108	Quotation.exe	99
PID 5108 wrote to memory of 5068	5108	Quotation.exe	99
PID 5108 wrote to memory of 5068	5108	Quotation.exe	99
PID 5108 wrote to memory of 4244	5108	Quotation.exe	101
PID 5108 wrote to memory of 4244	5108	Quotation.exe	101
PID 5108 wrote to memory of 4244	5108	Quotation.exe	101
PID 5108 wrote to memory of 1560	5108	Quotation.exe	103
PID 5108 wrote to memory of 1560	5108	Quotation.exe	103
PID 5108 wrote to memory of 1560	5108	Quotation.exe	103
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104
PID 5108 wrote to memory of 4876	5108	Quotation.exe	104

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1456
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hVWuVAdS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5068
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hVWuVAdS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4244
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:1560
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:4876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rgfudbqj.nzj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAB9.tmp

Filesize
1KB

MD5
5198b44f73b1b78ab5dac245fde5074f

SHA1
ad4345c380e8bc587eaf8506131dfe1fc04a067e

SHA256
de7acab7bf6098346f7807ae227e792438b859f1599892266f6ba93edf320674

SHA512
8a574eb96c2fd2277517a876212ca82da81be7d76fb70873d3412c1085f8e6f31e6d437810c01e37dffff237b11eee97107a44e1ab1eba9e78292d4de9c3ac30

Download Submit
memory/1456-53-0x00000000066D0000-0x000000000671C000-memory.dmp

Filesize
304KB

Download
memory/1456-16-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/1456-52-0x0000000005D80000-0x0000000005D9E000-memory.dmp

Filesize
120KB

Download
memory/1456-77-0x0000000007AB0000-0x000000000812A000-memory.dmp

Filesize
6.5MB

Download
memory/1456-81-0x0000000007670000-0x0000000007681000-memory.dmp

Filesize
68KB

Download
memory/1456-83-0x00000000076B0000-0x00000000076C4000-memory.dmp

Filesize
80KB

Download
memory/1456-34-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/1456-32-0x0000000005CF0000-0x0000000005D56000-memory.dmp

Filesize
408KB

Download
memory/1456-15-0x0000000002830000-0x0000000002866000-memory.dmp

Filesize
216KB

Download
memory/1456-91-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/1456-17-0x0000000005440000-0x0000000005A68000-memory.dmp

Filesize
6.2MB

Download
memory/1456-18-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/1456-35-0x0000000005E40000-0x0000000006194000-memory.dmp

Filesize
3.3MB

Download
memory/1456-85-0x0000000007790000-0x0000000007798000-memory.dmp

Filesize
32KB

Download
memory/1456-20-0x0000000005280000-0x00000000052A2000-memory.dmp

Filesize
136KB

Download
memory/1456-56-0x0000000075360000-0x00000000753AC000-memory.dmp

Filesize
304KB

Download
memory/1456-33-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download
memory/4876-93-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4876-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-90-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5068-19-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5068-75-0x00000000077D0000-0x00000000077EE000-memory.dmp

Filesize
120KB

Download
memory/5068-55-0x0000000075360000-0x00000000753AC000-memory.dmp

Filesize
304KB

Download
memory/5068-76-0x0000000007800000-0x00000000078A3000-memory.dmp

Filesize
652KB

Download
memory/5068-54-0x0000000007790000-0x00000000077C2000-memory.dmp

Filesize
200KB

Download
memory/5068-78-0x0000000007930000-0x000000000794A000-memory.dmp

Filesize
104KB

Download
memory/5068-79-0x00000000079A0000-0x00000000079AA000-memory.dmp

Filesize
40KB

Download
memory/5068-80-0x0000000007BB0000-0x0000000007C46000-memory.dmp

Filesize
600KB

Download
memory/5068-27-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5068-82-0x0000000007B60000-0x0000000007B6E000-memory.dmp

Filesize
56KB

Download
memory/5068-45-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5068-84-0x0000000007C70000-0x0000000007C8A000-memory.dmp

Filesize
104KB

Download
memory/5108-51-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5108-1-0x0000000000AB0000-0x0000000000BBC000-memory.dmp

Filesize
1.0MB

Download
memory/5108-2-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/5108-0-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/5108-5-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5108-3-0x00000000055E0000-0x0000000005672000-memory.dmp

Filesize
584KB

Download
memory/5108-4-0x00000000055B0000-0x00000000055BA000-memory.dmp

Filesize
40KB

Download
memory/5108-10-0x0000000006AE0000-0x0000000006B7C000-memory.dmp

Filesize
624KB

Download
memory/5108-9-0x0000000006840000-0x0000000006902000-memory.dmp

Filesize
776KB

Download
memory/5108-8-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/5108-7-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/5108-6-0x0000000005940000-0x0000000005958000-memory.dmp

Filesize
96KB

Download