remcos | 86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8

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
27-08-2024 16:42

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General

Target

thrylPXnvfySmGN.exe
Size

928KB
MD5

04d4d4d83e1601d220f83f09ae16cd79
SHA1

4f0a7d8060399a7ae5029690bdee2bf3b2e3e395
SHA256

86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8
SHA512

87747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c
SSDEEP

24576:bhdtlx9EP2aKUQ6/FfCH1bGl4rg5YWNexNBpqod:bhdrY+aPQiFgDWcxNzqi

Score

10^/10

remcos aug 26 collection credential_access discovery execution rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

sungito2.ddns.net:6509

154.216.19.222:5532

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-LXAZN2
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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/1192-68-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3748-74-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1804-66-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/1192-68-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1804-66-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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
4336	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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	thrylPXnvfySmGN.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	thrylPXnvfySmGN.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1040 set thread context of 4320	1040	thrylPXnvfySmGN.exe	100
PID 4320 set thread context of 1804	4320	thrylPXnvfySmGN.exe	101
PID 4320 set thread context of 1192	4320	thrylPXnvfySmGN.exe	103
PID 4320 set thread context of 3748	4320	thrylPXnvfySmGN.exe	105

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 6 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	thrylPXnvfySmGN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thrylPXnvfySmGN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thrylPXnvfySmGN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thrylPXnvfySmGN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thrylPXnvfySmGN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4336	powershell.exe
4336	powershell.exe
1804	thrylPXnvfySmGN.exe
1804	thrylPXnvfySmGN.exe
3748	thrylPXnvfySmGN.exe
3748	thrylPXnvfySmGN.exe
1804	thrylPXnvfySmGN.exe
1804	thrylPXnvfySmGN.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4320	thrylPXnvfySmGN.exe
4320	thrylPXnvfySmGN.exe
4320	thrylPXnvfySmGN.exe
4320	thrylPXnvfySmGN.exe
4320	thrylPXnvfySmGN.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	powershell.exe
Token: SeDebugPrivilege	3748	thrylPXnvfySmGN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	thrylPXnvfySmGN.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 4336	1040	thrylPXnvfySmGN.exe	98
PID 1040 wrote to memory of 4336	1040	thrylPXnvfySmGN.exe	98
PID 1040 wrote to memory of 4336	1040	thrylPXnvfySmGN.exe	98
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 1040 wrote to memory of 4320	1040	thrylPXnvfySmGN.exe	100
PID 4320 wrote to memory of 1804	4320	thrylPXnvfySmGN.exe	101
PID 4320 wrote to memory of 1804	4320	thrylPXnvfySmGN.exe	101
PID 4320 wrote to memory of 1804	4320	thrylPXnvfySmGN.exe	101
PID 4320 wrote to memory of 1804	4320	thrylPXnvfySmGN.exe	101
PID 4320 wrote to memory of 436	4320	thrylPXnvfySmGN.exe	102
PID 4320 wrote to memory of 436	4320	thrylPXnvfySmGN.exe	102
PID 4320 wrote to memory of 436	4320	thrylPXnvfySmGN.exe	102
PID 4320 wrote to memory of 1192	4320	thrylPXnvfySmGN.exe	103
PID 4320 wrote to memory of 1192	4320	thrylPXnvfySmGN.exe	103
PID 4320 wrote to memory of 1192	4320	thrylPXnvfySmGN.exe	103
PID 4320 wrote to memory of 1192	4320	thrylPXnvfySmGN.exe	103
PID 4320 wrote to memory of 1280	4320	thrylPXnvfySmGN.exe	104
PID 4320 wrote to memory of 1280	4320	thrylPXnvfySmGN.exe	104
PID 4320 wrote to memory of 1280	4320	thrylPXnvfySmGN.exe	104
PID 4320 wrote to memory of 3748	4320	thrylPXnvfySmGN.exe	105
PID 4320 wrote to memory of 3748	4320	thrylPXnvfySmGN.exe	105
PID 4320 wrote to memory of 3748	4320	thrylPXnvfySmGN.exe	105
PID 4320 wrote to memory of 3748	4320	thrylPXnvfySmGN.exe	105

C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
"C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- 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\thrylPXnvfySmGN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4336
- C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
  "C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
    C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe /stext "C:\Users\Admin\AppData\Local\Temp\jltucyogkvdmlvoxajwvmotjsphbymesgw"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1804
- - C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
    C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe /stext "C:\Users\Admin\AppData\Local\Temp\mngndr"
    3⤵
    PID:436
- - C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
    C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe /stext "C:\Users\Admin\AppData\Local\Temp\mngndr"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1192
- - C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
    C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe /stext "C:\Users\Admin\AppData\Local\Temp\wimxwjjbm"
    3⤵
    PID:1280
- - C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe
    C:\Users\Admin\AppData\Local\Temp\thrylPXnvfySmGN.exe /stext "C:\Users\Admin\AppData\Local\Temp\wimxwjjbm"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
f89246a1b54f41864e9e7b2cda1c1040

SHA1
d69b72c96b1eab720ef35b47ebbc1c20583dffa2

SHA256
a5efd8ece91bb49e1c208e2a81cb2ff1cf30614da0a1d87aa901018d7aa58918

SHA512
1d2c6f75f0d5dd7d3b188c7b714bb9479a48c5c5806b0b040454ab4c8d3466f3a42755ee5f4652ce27c5715d710a94611396a88c878ceab30e869fd5407f2441

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5robyla2.tzy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\jltucyogkvdmlvoxajwvmotjsphbymesgw

Filesize
4KB

MD5
ea01dd92b15d2f570f6b167dad2d1fd0

SHA1
7b89141d4c3eb2f29d096f28a9bfe66eb006224a

SHA256
0515f49138d74283f9ac1042fd1a384f715b74c2b99193454dbb0cd585097727

SHA512
0e7695aea30250a41829fa4abb681b8c3ed4c0955e18f1f9f3a5456bfb3a76f016f538e557bf29b99ab6ab48c846f9fa3c4bccd8cb5fe73099a81b5946029ec8

Download Submit
memory/1040-4-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1040-10-0x0000000006830000-0x00000000068CC000-memory.dmp

Filesize
624KB

Download
memory/1040-5-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/1040-6-0x0000000005870000-0x0000000005888000-memory.dmp

Filesize
96KB

Download
memory/1040-7-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/1040-8-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1040-9-0x0000000006570000-0x0000000006630000-memory.dmp

Filesize
768KB

Download
memory/1040-22-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1040-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/1040-3-0x0000000005380000-0x0000000005412000-memory.dmp

Filesize
584KB

Download
memory/1040-1-0x0000000000820000-0x000000000090A000-memory.dmp

Filesize
936KB

Download
memory/1040-2-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/1192-67-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1192-65-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1192-68-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1804-66-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1804-64-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1804-63-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3748-72-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3748-74-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3748-73-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4320-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-90-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4320-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-121-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-88-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4320-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-129-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-91-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4320-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4320-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4336-59-0x0000000006C70000-0x0000000006C8E000-memory.dmp

Filesize
120KB

Download
memory/4336-62-0x0000000007980000-0x000000000799A000-memory.dmp

Filesize
104KB

Download
memory/4336-61-0x0000000007FC0000-0x000000000863A000-memory.dmp

Filesize
6.5MB

Download
memory/4336-79-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

Filesize
80KB

Download
memory/4336-81-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

Filesize
32KB

Download
memory/4336-80-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/4336-78-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

Filesize
56KB

Download
memory/4336-85-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4336-77-0x0000000007B80000-0x0000000007B91000-memory.dmp

Filesize
68KB

Download
memory/4336-76-0x0000000007C00000-0x0000000007C96000-memory.dmp

Filesize
600KB

Download
memory/4336-75-0x00000000079F0000-0x00000000079FA000-memory.dmp

Filesize
40KB

Download
memory/4336-60-0x0000000007860000-0x0000000007903000-memory.dmp

Filesize
652KB

Download
memory/4336-48-0x0000000006C30000-0x0000000006C62000-memory.dmp

Filesize
200KB

Download
memory/4336-49-0x0000000071540000-0x000000007158C000-memory.dmp

Filesize
304KB

Download
memory/4336-41-0x0000000006690000-0x00000000066DC000-memory.dmp

Filesize
304KB

Download
memory/4336-40-0x0000000006640000-0x000000000665E000-memory.dmp

Filesize
120KB

Download
memory/4336-39-0x0000000006190000-0x00000000064E4000-memory.dmp

Filesize
3.3MB

Download
memory/4336-29-0x0000000006020000-0x0000000006086000-memory.dmp

Filesize
408KB

Download
memory/4336-28-0x0000000005830000-0x0000000005896000-memory.dmp

Filesize
408KB

Download
memory/4336-27-0x0000000005690000-0x00000000056B2000-memory.dmp

Filesize
136KB

Download
memory/4336-25-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4336-26-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4336-24-0x0000000005940000-0x0000000005F68000-memory.dmp

Filesize
6.2MB

Download
memory/4336-21-0x0000000002D30000-0x0000000002D66000-memory.dmp

Filesize
216KB

Download
memory/4336-20-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download