remcos | 678bea007fe0302874c28fa618e025066b93681f6b4747fef65992e69746cd77

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 03:17

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General

Target

Purchase Order.exe
Size

1.1MB
MD5

d5261204d9c158b2bab4272f89f7df17
SHA1

11d82d35d6d5ef250b9cedf4d1f7cd98c0246546
SHA256

27e9c5e774bf0946e99a7f34d14ded33ca1c236765fbcfda83e234d70d15c652
SHA512

2710b22611fca8f90c38c715755a4ec34eec2fd176df45c68c4712d6a5b2803643f09bc05d9d08eb2981f4985355e4d1259eb7a42c8766aabc3f9f1badef4564
SSDEEP

24576:bzls/WgXN832qWivcsegk5vQ2F+wK9ADZyM6RGk:YN832q7vwrQW+wYl

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

2.58.56.182:2404

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-GM05WY
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
4968	powershell.exe
1920	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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	Purchase Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2532 set thread context of 1216	2532	Purchase Order.exe	91

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Purchase Order.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	Purchase Order.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
1608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4968	powershell.exe
4968	powershell.exe
1920	powershell.exe
1920	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	1920	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 4968	2532	Purchase Order.exe	85
PID 2532 wrote to memory of 4968	2532	Purchase Order.exe	85
PID 2532 wrote to memory of 4968	2532	Purchase Order.exe	85
PID 2532 wrote to memory of 1920	2532	Purchase Order.exe	87
PID 2532 wrote to memory of 1920	2532	Purchase Order.exe	87
PID 2532 wrote to memory of 1920	2532	Purchase Order.exe	87
PID 2532 wrote to memory of 1608	2532	Purchase Order.exe	89
PID 2532 wrote to memory of 1608	2532	Purchase Order.exe	89
PID 2532 wrote to memory of 1608	2532	Purchase Order.exe	89
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91
PID 2532 wrote to memory of 1216	2532	Purchase Order.exe	91

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532
- 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\Purchase Order.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hYpnBXIk.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1920
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hYpnBXIk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD2C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1608
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1216

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
9c69dd8cfeac318a20473ba5b994615c

SHA1
ca4e96a297de803b08e51fc7ad9930e9d82faff6

SHA256
9bd861dc905359738101d9848ef4e22cb1801ebc0d885a17851a24455182edfd

SHA512
75984450aac8353a909b50c0e4754ec963579992b39b9e0697eeefc14718aa0748292ab7480ec1c26c0bc072b1c7063401fe0a92dc457d816a15cf6c8fb52140

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5vc3y5ul.vun.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFD2C.tmp

Filesize
1KB

MD5
4894c90997ad2bb46535651fbbe89e77

SHA1
d7f77dbb22fe480e4ab716d923038fccf344933f

SHA256
07298299b377bbe945e5376758a2dc3bf5178ccd45e80dfe4fa4b8dbb90c6be8

SHA512
35766faf3309b47736de4794a19ae809421a9a1145141af7bd7c6b7aec8d3358a9ecba968092f3a41d547f9f230f36603b12a50887df97bf2bef8b2b96cbcb01

Download Submit
memory/1216-89-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-96-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-86-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-87-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-93-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-90-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-91-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-98-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-85-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-92-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1216-83-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1920-67-0x000000006F900000-0x000000006F94C000-memory.dmp

Filesize
304KB

Download
memory/2532-7-0x0000000005BD0000-0x0000000005BEE000-memory.dmp

Filesize
120KB

Download
memory/2532-0-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/2532-10-0x000000000A920000-0x000000000A9E4000-memory.dmp

Filesize
784KB

Download
memory/2532-9-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/2532-33-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/2532-8-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/2532-88-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/2532-6-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/2532-5-0x0000000005A30000-0x0000000005ACC000-memory.dmp

Filesize
624KB

Download
memory/2532-4-0x00000000057C0000-0x00000000057CA000-memory.dmp

Filesize
40KB

Download
memory/2532-3-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/2532-2-0x0000000005BF0000-0x0000000006194000-memory.dmp

Filesize
5.6MB

Download
memory/2532-1-0x0000000000C00000-0x0000000000D1C000-memory.dmp

Filesize
1.1MB

Download
memory/4968-14-0x00000000055C0000-0x0000000005BE8000-memory.dmp

Filesize
6.2MB

Download
memory/4968-61-0x0000000007A00000-0x0000000007A96000-memory.dmp

Filesize
600KB

Download
memory/4968-62-0x00000000079A0000-0x00000000079B1000-memory.dmp

Filesize
68KB

Download
memory/4968-63-0x00000000079D0000-0x00000000079DE000-memory.dmp

Filesize
56KB

Download
memory/4968-64-0x00000000079E0000-0x00000000079F4000-memory.dmp

Filesize
80KB

Download
memory/4968-65-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

Filesize
104KB

Download
memory/4968-66-0x0000000007AC0000-0x0000000007AC8000-memory.dmp

Filesize
32KB

Download
memory/4968-60-0x00000000077F0000-0x00000000077FA000-memory.dmp

Filesize
40KB

Download
memory/4968-78-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4968-49-0x0000000007DC0000-0x000000000843A000-memory.dmp

Filesize
6.5MB

Download
memory/4968-50-0x0000000007780000-0x000000000779A000-memory.dmp

Filesize
104KB

Download
memory/4968-47-0x0000000007440000-0x00000000074E3000-memory.dmp

Filesize
652KB

Download
memory/4968-48-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4968-34-0x0000000006A20000-0x0000000006A52000-memory.dmp

Filesize
200KB

Download
memory/4968-46-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4968-45-0x0000000007420000-0x000000000743E000-memory.dmp

Filesize
120KB

Download
memory/4968-35-0x000000006F900000-0x000000006F94C000-memory.dmp

Filesize
304KB

Download
memory/4968-29-0x0000000006500000-0x000000000654C000-memory.dmp

Filesize
304KB

Download
memory/4968-28-0x0000000006450000-0x000000000646E000-memory.dmp

Filesize
120KB

Download
memory/4968-27-0x0000000005F90000-0x00000000062E4000-memory.dmp

Filesize
3.3MB

Download
memory/4968-16-0x0000000005D00000-0x0000000005D66000-memory.dmp

Filesize
408KB

Download
memory/4968-22-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/4968-15-0x0000000005BF0000-0x0000000005C12000-memory.dmp

Filesize
136KB

Download
memory/4968-13-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4968-12-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4968-11-0x0000000002B30000-0x0000000002B66000-memory.dmp

Filesize
216KB

Download