remcos | 32fd435938f24dbcb2c62c4d2fcf0c9ddc109dc35275510b202830d7a119d317

Analysis

max time kernel
149s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 07:24

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General

Target

Geron Steel-Order-79376- Contract 2025.exe
Size

96KB
MD5

fdee96e631a0f8f3820671ecdaa13585
SHA1

dc99e0841a7dd576ea1ce95eb2f36bf0dbf41582
SHA256

32fd435938f24dbcb2c62c4d2fcf0c9ddc109dc35275510b202830d7a119d317
SHA512

a86871fde648462f119b467dca7c2b43de6765ed4cb1a56835c98782039c514f169d81b9eab5c5887143a8ba780fe9f8ecf138441e96ccb47b4180bbd1dd87a8
SSDEEP

1536:eRgg36JaaX+2V6G3F2M9O8n1YPyKpFKu1rEiXsY:Q36JL76G3F2l81YDT2ix

Score

10^/10

remcos fresh collection credential_access discovery rat stealer

Malware Config

Extracted

Family

remcos

Botnet

Fresh

taysour6lakut1.duckdns.org:1960

taysour6lakut1.duckdns.org:1961

taysour6lakut2.duckdns.org:1960

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
mzpos.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
kmgvboirfg-VIHET7
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 5 IoCs

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

resource	yara_rule
behavioral2/memory/3420-36-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2888-39-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3420-40-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1352-35-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3420-45-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/1352-35-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3420-36-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3420-40-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3420-45-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	RegSvcs.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 2032 set thread context of 3420	2032	RegSvcs.exe	89
PID 2032 set thread context of 1352	2032	RegSvcs.exe	90
PID 2032 set thread context of 2888	2032	RegSvcs.exe	92

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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
4348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3420	RegSvcs.exe
3420	RegSvcs.exe
2888	RegSvcs.exe
2888	RegSvcs.exe
3420	RegSvcs.exe
3420	RegSvcs.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2032	RegSvcs.exe
2032	RegSvcs.exe
2032	RegSvcs.exe
2032	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2032	RegSvcs.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2032	1112	Geron Steel-Order-79376- Contract 2025.exe	85
PID 1112 wrote to memory of 2456	1112	Geron Steel-Order-79376- Contract 2025.exe	86
PID 1112 wrote to memory of 2456	1112	Geron Steel-Order-79376- Contract 2025.exe	86
PID 2456 wrote to memory of 4348	2456	cmd.exe	88
PID 2456 wrote to memory of 4348	2456	cmd.exe	88
PID 2032 wrote to memory of 3420	2032	RegSvcs.exe	89
PID 2032 wrote to memory of 3420	2032	RegSvcs.exe	89
PID 2032 wrote to memory of 3420	2032	RegSvcs.exe	89
PID 2032 wrote to memory of 3420	2032	RegSvcs.exe	89
PID 2032 wrote to memory of 1352	2032	RegSvcs.exe	90
PID 2032 wrote to memory of 1352	2032	RegSvcs.exe	90
PID 2032 wrote to memory of 1352	2032	RegSvcs.exe	90
PID 2032 wrote to memory of 1352	2032	RegSvcs.exe	90
PID 2032 wrote to memory of 4960	2032	RegSvcs.exe	91
PID 2032 wrote to memory of 4960	2032	RegSvcs.exe	91
PID 2032 wrote to memory of 4960	2032	RegSvcs.exe	91
PID 2032 wrote to memory of 2888	2032	RegSvcs.exe	92
PID 2032 wrote to memory of 2888	2032	RegSvcs.exe	92
PID 2032 wrote to memory of 2888	2032	RegSvcs.exe	92
PID 2032 wrote to memory of 2888	2032	RegSvcs.exe	92

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Geron Steel-Order-79376- Contract 2025.exe
"C:\Users\Admin\AppData\Local\Temp\Geron Steel-Order-79376- Contract 2025.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\deqwppcxiixqsgqaafkscuhjxc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:3420
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\nyvhphnqwqpdumeekpwtfzbrxjwcy"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1352
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\yaizqryskyhieaaitajnqlwigqglrzrga"
    3⤵
    PID:4960
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\yaizqryskyhieaaitajnqlwigqglrzrga"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2888
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c schtasks /create /tn "CShopname" /tr "C:\Users\Admin\AppData\Roaming\NLoeschin.exe " /sc minute /mo 10 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2456
- - C:\Windows\system32\schtasks.exe
    schtasks /create /tn "CShopname" /tr "C:\Users\Admin\AppData\Roaming\NLoeschin.exe " /sc minute /mo 10 /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\deqwppcxiixqsgqaafkscuhjxc

Filesize
4KB

MD5
c0ab2847671ed5375328c5127a02cc72

SHA1
dc2bcb51562fb17e5c8787833bc0181d88a5b75e

SHA256
e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384

SHA512
0b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f

Download Submit
memory/1112-20-0x00007FF87A980000-0x00007FF87B441000-memory.dmp

Filesize
10.8MB

Download
memory/1112-1-0x00007FF87A983000-0x00007FF87A985000-memory.dmp

Filesize
8KB

Download
memory/1112-9-0x000000001B3C0000-0x000000001B3CA000-memory.dmp

Filesize
40KB

Download
memory/1112-10-0x00007FF87A980000-0x00007FF87B441000-memory.dmp

Filesize
10.8MB

Download
memory/1112-0-0x0000000000050000-0x000000000006C000-memory.dmp

Filesize
112KB

Download
memory/1352-33-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1352-35-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1352-31-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2032-50-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2032-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-47-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2032-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-51-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2032-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2888-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2888-38-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2888-39-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3420-45-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3420-40-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3420-36-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3420-34-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3420-30-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download