remcos | 66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 01:54

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General

Target

66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
Size

900KB
MD5

a1e1f9aef9a168423b2f0cd1dbe2ba9a
SHA1

921abb3a628f79b295c92d7298da8dfedc1b9376
SHA256

66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d
SHA512

6281720fd5a85723cb6cc85845fa4895cf0190cad58a4924c2a36a0d7d7b6f41b4a2f1c7bf005e969c5e973294c287a3c5c1c2c91029fd40b0d6a697e2bcd673
SSDEEP

24576:kpdp7oz4EdD2Vw6byE1MVoLVKbG65MyekkQ40e8nk9IN:kP7iqLy5VoLVCdJe5QX

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.projectusf.com:2404

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
gfh
mouse_option
false
mutex
Rmc-J91LMC
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
4376	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4840 set thread context of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4376	powershell.exe
4376	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4376	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
692	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 4376	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	89
PID 4840 wrote to memory of 4376	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	89
PID 4840 wrote to memory of 4376	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	89
PID 4840 wrote to memory of 2700	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	91
PID 4840 wrote to memory of 2700	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	91
PID 4840 wrote to memory of 2700	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	91
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93
PID 4840 wrote to memory of 692	4840	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	93

C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
"C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4840
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AWLIvgmtRIHlb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4376
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AWLIvgmtRIHlb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5D0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2700
- C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
  "C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:692

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:\ProgramData\gfh\logs.dat

Filesize
144B

MD5
8bfe58672ba86e2771aa6ed2d203b8fe

SHA1
54f02079677d09b7f6ed533908f120a6df3b5212

SHA256
6631965e14cd4a94e575945d6b3c47b781916092c81ba3ff0fd7dbb190bcdb9b

SHA512
c5c4c4d82cb6394073f5782a9001245087f43b2d560b9a3680cab4c3d8046762f1e786c7686f318fb4b82a939134cba136792643b6d3f8690879dd71e6a2c377

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mwvxg340.rdk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC5D0.tmp

Filesize
1KB

MD5
0d82d800a5155522a530db387e6c7de3

SHA1
f0ed4257532231a84a27cb55ab577609b4863eca

SHA256
d61e66c37b8bc26e07db4e603eef3ea1e2f407896c85acef6cdcdc9427be39a2

SHA512
fb59f5f8e56c905c4f4283edd17f8e193433627b1bb1c67ed2e233406ad9fec17cd6a552c70af45387f8f464b26fb661da82acd2b36f6183e6845e9aece14156

Download Submit
memory/692-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-151-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-150-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-148-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-146-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-144-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-143-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-142-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-137-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-136-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-134-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-132-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-130-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-129-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-147-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/692-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4376-46-0x00000000065C0000-0x000000000660C000-memory.dmp

Filesize
304KB

Download
memory/4376-17-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4376-19-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4376-62-0x0000000007890000-0x000000000789A000-memory.dmp

Filesize
40KB

Download
memory/4376-72-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4376-68-0x0000000007B40000-0x0000000007B48000-memory.dmp

Filesize
32KB

Download
memory/4376-67-0x0000000007B60000-0x0000000007B7A000-memory.dmp

Filesize
104KB

Download
memory/4376-66-0x0000000007A60000-0x0000000007A74000-memory.dmp

Filesize
80KB

Download
memory/4376-65-0x0000000007A50000-0x0000000007A5E000-memory.dmp

Filesize
56KB

Download
memory/4376-64-0x0000000007A20000-0x0000000007A31000-memory.dmp

Filesize
68KB

Download
memory/4376-63-0x0000000007AA0000-0x0000000007B36000-memory.dmp

Filesize
600KB

Download
memory/4376-15-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

Filesize
216KB

Download
memory/4376-60-0x0000000007E70000-0x00000000084EA000-memory.dmp

Filesize
6.5MB

Download
memory/4376-61-0x0000000007820000-0x000000000783A000-memory.dmp

Filesize
104KB

Download
memory/4376-59-0x00000000074D0000-0x0000000007573000-memory.dmp

Filesize
652KB

Download
memory/4376-58-0x0000000006A90000-0x0000000006AAE000-memory.dmp

Filesize
120KB

Download
memory/4376-48-0x0000000075170000-0x00000000751BC000-memory.dmp

Filesize
304KB

Download
memory/4376-47-0x0000000006AF0000-0x0000000006B22000-memory.dmp

Filesize
200KB

Download
memory/4376-16-0x0000000005660000-0x0000000005C88000-memory.dmp

Filesize
6.2MB

Download
memory/4376-18-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4376-24-0x00000000055E0000-0x0000000005646000-memory.dmp

Filesize
408KB

Download
memory/4376-45-0x0000000006530000-0x000000000654E000-memory.dmp

Filesize
120KB

Download
memory/4376-26-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/4376-21-0x0000000005540000-0x0000000005562000-memory.dmp

Filesize
136KB

Download
memory/4376-38-0x0000000005F30000-0x0000000006284000-memory.dmp

Filesize
3.3MB

Download
memory/4840-44-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4840-4-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4840-3-0x0000000004C50000-0x0000000004CE2000-memory.dmp

Filesize
584KB

Download
memory/4840-1-0x0000000000180000-0x0000000000268000-memory.dmp

Filesize
928KB

Download
memory/4840-2-0x0000000005100000-0x00000000056A4000-memory.dmp

Filesize
5.6MB

Download
memory/4840-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/4840-10-0x000000000B2D0000-0x000000000B36C000-memory.dmp

Filesize
624KB

Download
memory/4840-9-0x0000000008A20000-0x0000000008AE0000-memory.dmp

Filesize
768KB

Download
memory/4840-8-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/4840-7-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/4840-6-0x00000000050F0000-0x0000000005102000-memory.dmp

Filesize
72KB

Download
memory/4840-5-0x0000000004E10000-0x0000000004E1A000-memory.dmp

Filesize
40KB

Download