remcos | 099f8255b276489033ff65e05ce2ccb728cec9494056aa35f5af8112c92d1906

Analysis

max time kernel
299s
max time network
303s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 09:25

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General

Target

Instrument lists , coporate info and po sample drawing.exe
Size

1.1MB
MD5

ad27097cd76b134d0d2d1509b5c3e3a6
SHA1

5eb2ba9bdeecad9c6ab8c762edf499bab2222b40
SHA256

3e4da255f51276918b7cdc4e47fa529e7ef5e6f5a2107b4932cf767ed82ca43f
SHA512

8e49faa5ad48af9d1cfc4081a07daf380a659ff236999fd0110d85fa9f09db0358cbeba9c90bf88b18b3083ed90298f6604cbf3dfe45e818a53e83d3880881a5
SSDEEP

24576:bQ3AgyE7jZH6EPfywOXd7e+AbCr9xeNdcrOYLaUa:bQQCjZH6EPfyJXdatbyazcCY+Ua

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.humptex.store: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
edfghjk
mouse_option
false
mutex
Rmc-8D13LS
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

Processes:

powershell.exepowershell.exe

pid process

3772 powershell.exe
892 powershell.exe

pid	process
3772	powershell.exe
892	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

Processes:

Instrument lists , coporate info and po sample drawing.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Instrument lists , coporate info and po sample drawing.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Instrument lists , coporate info and po sample drawing.exe

description	pid	process	target process
PID 3140 set thread context of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe

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 5 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:

Instrument lists , coporate info and po sample drawing.exepowershell.exepowershell.exeschtasks.exeInstrument lists , coporate info and po sample drawing.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Instrument lists , coporate info and po sample drawing.exe
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	Instrument lists , coporate info and po sample drawing.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

Processes:

schtasks.exe

pid process

2336 schtasks.exe

pid	process
2336	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Instrument lists , coporate info and po sample drawing.exepowershell.exepowershell.exe

pid	process
3140	Instrument lists , coporate info and po sample drawing.exe
3772	powershell.exe
892	powershell.exe
3140	Instrument lists , coporate info and po sample drawing.exe
3772	powershell.exe
892	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Instrument lists , coporate info and po sample drawing.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3140	Instrument lists , coporate info and po sample drawing.exe
Token: SeDebugPrivilege	3772	powershell.exe
Token: SeDebugPrivilege	892	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Instrument lists , coporate info and po sample drawing.exe

pid process

696 Instrument lists , coporate info and po sample drawing.exe

pid	process
696	Instrument lists , coporate info and po sample drawing.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Instrument lists , coporate info and po sample drawing.exe

description	pid	process	target process
PID 3140 wrote to memory of 3772	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 3772	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 3772	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 892	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 892	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 892	3140	Instrument lists , coporate info and po sample drawing.exe	powershell.exe
PID 3140 wrote to memory of 2336	3140	Instrument lists , coporate info and po sample drawing.exe	schtasks.exe
PID 3140 wrote to memory of 2336	3140	Instrument lists , coporate info and po sample drawing.exe	schtasks.exe
PID 3140 wrote to memory of 2336	3140	Instrument lists , coporate info and po sample drawing.exe	schtasks.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe
PID 3140 wrote to memory of 696	3140	Instrument lists , coporate info and po sample drawing.exe	Instrument lists , coporate info and po sample drawing.exe

C:\Users\Admin\AppData\Local\Temp\Instrument lists , coporate info and po sample drawing.exe
"C:\Users\Admin\AppData\Local\Temp\Instrument lists , coporate info and po sample drawing.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:3140
- 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\Instrument lists , coporate info and po sample drawing.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3772
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jIjBkznYJBuTm.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:892
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jIjBkznYJBuTm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2336
- C:\Users\Admin\AppData\Local\Temp\Instrument lists , coporate info and po sample drawing.exe
  "C:\Users\Admin\AppData\Local\Temp\Instrument lists , coporate info and po sample drawing.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:696

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

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Downloads

C:\ProgramData\edfghjk\logs.dat

Filesize
144B

MD5
4e2c0926234f45b1ed8622754a788ea0

SHA1
1292c54d641df6f6fb019f36b05c8f7aebeac7a8

SHA256
d5ff99a4ff37399400c4f31ef4774e24e854f9f6de3d46802913ac92571d5646

SHA512
cc4cccd7be8b324f617aabd2f95f9beaf65c5922807c1536e7d4a120e6a75551ffa05bd5c472e8a61b7cd7d8f33e1e7ea78798bc63c4cf68d9f3db439593f31a

Download Submit
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_j5nvbh04.4vv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3C4.tmp

Filesize
1KB

MD5
1e34dd707673cd920a80a2b37d1b8f52

SHA1
f1f8f0a1d7dd5b386d1a5d8f419aaf23dee89058

SHA256
6d9a00abda445086e53742a77442ad91fe78f88549439458b225b69e60aab365

SHA512
a69266dd0da85e2f20c24b6c66ac0e06e97233123eba22a1d979f7448648e5f2087e9083a3b1b4eb04702ab928bd52097414a8ad7abe9b58d1ecc59790907cff

Download Submit
memory/696-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/696-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/892-39-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/892-85-0x0000000007490000-0x000000000749E000-memory.dmp

Filesize
56KB

Download
memory/892-82-0x00000000072D0000-0x00000000072DA000-memory.dmp

Filesize
40KB

Download
memory/892-93-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/892-32-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/892-64-0x0000000074FD0000-0x000000007501C000-memory.dmp

Filesize
304KB

Download
memory/892-87-0x00000000075A0000-0x00000000075BA000-memory.dmp

Filesize
104KB

Download
memory/892-23-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-45-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-10-0x0000000006DA0000-0x0000000006E64000-memory.dmp

Filesize
784KB

Download
memory/3140-8-0x0000000005850000-0x0000000005862000-memory.dmp

Filesize
72KB

Download
memory/3140-7-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/3140-6-0x0000000005860000-0x00000000058FC000-memory.dmp

Filesize
624KB

Download
memory/3140-5-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/3140-4-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-3-0x0000000005590000-0x0000000005622000-memory.dmp

Filesize
584KB

Download
memory/3140-9-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3140-2-0x0000000005C80000-0x0000000006224000-memory.dmp

Filesize
5.6MB

Download
memory/3140-1-0x0000000000A90000-0x0000000000BB2000-memory.dmp

Filesize
1.1MB

Download
memory/3140-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/3772-17-0x0000000005200000-0x0000000005828000-memory.dmp

Filesize
6.2MB

Download
memory/3772-56-0x0000000006610000-0x000000000665C000-memory.dmp

Filesize
304KB

Download
memory/3772-55-0x00000000060E0000-0x00000000060FE000-memory.dmp

Filesize
120KB

Download
memory/3772-71-0x00000000066C0000-0x00000000066DE000-memory.dmp

Filesize
120KB

Download
memory/3772-58-0x0000000074FD0000-0x000000007501C000-memory.dmp

Filesize
304KB

Download
memory/3772-57-0x00000000072B0000-0x00000000072E2000-memory.dmp

Filesize
200KB

Download
memory/3772-79-0x00000000072F0000-0x0000000007393000-memory.dmp

Filesize
652KB

Download
memory/3772-80-0x0000000007A50000-0x00000000080CA000-memory.dmp

Filesize
6.5MB

Download
memory/3772-81-0x0000000007400000-0x000000000741A000-memory.dmp

Filesize
104KB

Download
memory/3772-20-0x0000000005860000-0x0000000005882000-memory.dmp

Filesize
136KB

Download
memory/3772-83-0x0000000007690000-0x0000000007726000-memory.dmp

Filesize
600KB

Download
memory/3772-84-0x0000000007600000-0x0000000007611000-memory.dmp

Filesize
68KB

Download
memory/3772-86-0x0000000007640000-0x0000000007654000-memory.dmp

Filesize
80KB

Download
memory/3772-26-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/3772-21-0x0000000005900000-0x0000000005966000-memory.dmp

Filesize
408KB

Download
memory/3772-88-0x0000000007680000-0x0000000007688000-memory.dmp

Filesize
32KB

Download
memory/3772-22-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/3772-18-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3772-92-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3772-16-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3772-15-0x0000000004B50000-0x0000000004B86000-memory.dmp

Filesize
216KB

Download