remcos | 7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 23:19

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General

Target

7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe
Size

988KB
MD5

8e096c769a06afc7cb0d2e4903632829
SHA1

5d1887cbc765869914c5a5139806ca960c1f5c5c
SHA256

7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b
SHA512

911750d486f469ea98f6e2895bd65657c85a20804b1c06eaf3edbd35f20a76c729c9a39ead4bc5db705300aa4c10740c0190cac1ac0d900f77b95171a16f3073
SSDEEP

24576:xgpPDplZrOxmv3s4XVZOL8MevAUxZZ6UHxOt4UXZ:x8Fgmv3s4XHW8sUp6UU3XZ

Score

10^/10

remcos irnserv1 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

IRNSERV1

irnserv1.ddns.net:4424

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-20UF0Z
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4356	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2488 set thread context of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86

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	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.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	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.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
2836	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4356	powershell.exe
4356	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4356	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3348	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 4356	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	82
PID 2488 wrote to memory of 4356	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	82
PID 2488 wrote to memory of 4356	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	82
PID 2488 wrote to memory of 2836	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	84
PID 2488 wrote to memory of 2836	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	84
PID 2488 wrote to memory of 2836	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	84
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86
PID 2488 wrote to memory of 3348	2488	7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe	86

C:\Users\Admin\AppData\Local\Temp\7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe
"C:\Users\Admin\AppData\Local\Temp\7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZnxXVXP.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4356
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZnxXVXP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC2C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2836
- C:\Users\Admin\AppData\Local\Temp\7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe
  "C:\Users\Admin\AppData\Local\Temp\7e5f8060468b9e18265644190e564d0b53d6eeb0b4cf3b3e35405d3a4447fc1b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3348

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\remcos\logs.dat

Filesize
144B

MD5
f84177b77a6cef550a83fef19f32b51c

SHA1
f20444c80f46f124606bcdbcb7dfc0f5661dc683

SHA256
d5801ddf7a2b493e1ec584e6092a2eed1c2469a75cb68fe16e7db307853ba787

SHA512
c908f1243f6bf48a5da70b7469415c76439605d778c178ed7d16218f1a0313ac5665dc9875cdb1e6b8a34d3e728fe1a240ecc4cc1453feead81d4f5a2dd6d2ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lpghzzd2.vgi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBC2C.tmp

Filesize
1KB

MD5
7dbdc8f732e5b2f0403d3cb4be1afa54

SHA1
c493d74eb8d04456845d131294c2bab41116cb91

SHA256
3dc4c8cbeae71dedc24a95e8f93b7558d118b47981e56417dbf4ede29c47f7e0

SHA512
81a747473220baaea12671ce86bed203a955acd6489e4a3df41f68e0665e11d25530a7c7c0e688dddfc77625eaa582512663eb1c3ab69143b8040081de6f975f

Download Submit
memory/2488-5-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/2488-3-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/2488-4-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/2488-30-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/2488-6-0x0000000005950000-0x00000000059EC000-memory.dmp

Filesize
624KB

Download
memory/2488-7-0x0000000005790000-0x00000000057AA000-memory.dmp

Filesize
104KB

Download
memory/2488-8-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/2488-9-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/2488-10-0x0000000008190000-0x0000000008250000-memory.dmp

Filesize
768KB

Download
memory/2488-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/2488-1-0x0000000000AF0000-0x0000000000BEC000-memory.dmp

Filesize
1008KB

Download
memory/2488-0-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/3348-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3348-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4356-31-0x0000000004BE0000-0x0000000004C02000-memory.dmp

Filesize
136KB

Download
memory/4356-24-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4356-35-0x00000000054C0000-0x0000000005814000-memory.dmp

Filesize
3.3MB

Download
memory/4356-45-0x0000000005A90000-0x0000000005AAE000-memory.dmp

Filesize
120KB

Download
memory/4356-46-0x0000000005B20000-0x0000000005B6C000-memory.dmp

Filesize
304KB

Download
memory/4356-47-0x0000000006090000-0x00000000060C2000-memory.dmp

Filesize
200KB

Download
memory/4356-48-0x0000000071A70000-0x0000000071ABC000-memory.dmp

Filesize
304KB

Download
memory/4356-58-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/4356-59-0x0000000006AC0000-0x0000000006B63000-memory.dmp

Filesize
652KB

Download
memory/4356-60-0x0000000007400000-0x0000000007A7A000-memory.dmp

Filesize
6.5MB

Download
memory/4356-61-0x0000000006DB0000-0x0000000006DCA000-memory.dmp

Filesize
104KB

Download
memory/4356-62-0x0000000006E20000-0x0000000006E2A000-memory.dmp

Filesize
40KB

Download
memory/4356-63-0x0000000007030000-0x00000000070C6000-memory.dmp

Filesize
600KB

Download
memory/4356-64-0x0000000006FB0000-0x0000000006FC1000-memory.dmp

Filesize
68KB

Download
memory/4356-65-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/4356-66-0x0000000006FF0000-0x0000000007004000-memory.dmp

Filesize
80KB

Download
memory/4356-67-0x00000000070F0000-0x000000000710A000-memory.dmp

Filesize
104KB

Download
memory/4356-68-0x00000000070D0000-0x00000000070D8000-memory.dmp

Filesize
32KB

Download
memory/4356-71-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4356-33-0x00000000053E0000-0x0000000005446000-memory.dmp

Filesize
408KB

Download
memory/4356-34-0x0000000005450000-0x00000000054B6000-memory.dmp

Filesize
408KB

Download
memory/4356-20-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4356-18-0x0000000004CC0000-0x00000000052E8000-memory.dmp

Filesize
6.2MB

Download
memory/4356-17-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/4356-15-0x0000000002170000-0x00000000021A6000-memory.dmp

Filesize
216KB

Download