remcos | 6ea77ecddf6b1b7c691746dd9fe3deb3d0c177d07b6b434d4694ed134472c7ef

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 11:55

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General

Target

Ravakhu24105.exe
Size

26KB
MD5

4de10c26ffdb97cf0ddedd59e6212762
SHA1

f429ad8fc9d4ce133129082c2ff824b529af3710
SHA256

6ea77ecddf6b1b7c691746dd9fe3deb3d0c177d07b6b434d4694ed134472c7ef
SHA512

c25166fb6d56f046a816f4e1161ddd630182da203bef138a9a1b987c9912997f925766312e3acc4295e05393537f960e7e8e2be13d5afc101df898030f74624f
SSDEEP

768:xAzd2MYn1UuHMFSlWXokQPhbOcjC49N06:+p2MYn1UuHMgIXokQPgcjC49Nv

Score

10^/10

remcos sucre11 collection credential_access discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

sucre11

185.150.191.117:4609

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-KRN2PG
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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4576 created 3456	4576	Ravakhu24105.exe	56

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/3520-1118-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3688-1117-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3688-1120-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3520-1118-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3688-1117-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3688-1120-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Ravakhu24105.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windowsm = "C:\\Users\\Admin\\AppData\\Roaming\\windowsm.exe"	Ravakhu24105.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4576 set thread context of 4692	4576	Ravakhu24105.exe	92
PID 4692 set thread context of 3688	4692	Ravakhu24105.exe	95
PID 4692 set thread context of 3520	4692	Ravakhu24105.exe	97
PID 4692 set thread context of 4792	4692	Ravakhu24105.exe	98

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	Ravakhu24105.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ravakhu24105.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ravakhu24105.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ravakhu24105.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ravakhu24105.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4576	Ravakhu24105.exe
3688	Ravakhu24105.exe
3688	Ravakhu24105.exe
4792	Ravakhu24105.exe
4792	Ravakhu24105.exe
3688	Ravakhu24105.exe
3688	Ravakhu24105.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
4692	Ravakhu24105.exe
4692	Ravakhu24105.exe
4692	Ravakhu24105.exe
4692	Ravakhu24105.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4576	Ravakhu24105.exe
Token: SeDebugPrivilege	4576	Ravakhu24105.exe
Token: SeDebugPrivilege	4792	Ravakhu24105.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4576 wrote to memory of 4692	4576	Ravakhu24105.exe	92
PID 4692 wrote to memory of 3688	4692	Ravakhu24105.exe	95
PID 4692 wrote to memory of 3688	4692	Ravakhu24105.exe	95
PID 4692 wrote to memory of 3688	4692	Ravakhu24105.exe	95
PID 4692 wrote to memory of 3688	4692	Ravakhu24105.exe	95
PID 4692 wrote to memory of 2324	4692	Ravakhu24105.exe	96
PID 4692 wrote to memory of 2324	4692	Ravakhu24105.exe	96
PID 4692 wrote to memory of 2324	4692	Ravakhu24105.exe	96
PID 4692 wrote to memory of 3520	4692	Ravakhu24105.exe	97
PID 4692 wrote to memory of 3520	4692	Ravakhu24105.exe	97
PID 4692 wrote to memory of 3520	4692	Ravakhu24105.exe	97
PID 4692 wrote to memory of 3520	4692	Ravakhu24105.exe	97
PID 4692 wrote to memory of 4792	4692	Ravakhu24105.exe	98
PID 4692 wrote to memory of 4792	4692	Ravakhu24105.exe	98
PID 4692 wrote to memory of 4792	4692	Ravakhu24105.exe	98
PID 4692 wrote to memory of 4792	4692	Ravakhu24105.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3456
- C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
  "C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4576
- C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
  "C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4692
- - C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
    C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe /stext "C:\Users\Admin\AppData\Local\Temp\ckclsnv"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:3688
- - C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
    C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe /stext "C:\Users\Admin\AppData\Local\Temp\fnhvtfgaff"
    3⤵
    PID:2324
- - C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
    C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe /stext "C:\Users\Admin\AppData\Local\Temp\fnhvtfgaff"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:3520
- - C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe
    C:\Users\Admin\AppData\Local\Temp\Ravakhu24105.exe /stext "C:\Users\Admin\AppData\Local\Temp\phvouyrttnzys"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

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

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Downloads

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

Filesize
4KB

MD5
1891919175c888ce82e9bd8a047b01ad

SHA1
502a6892a5d27ecb791ac5aa6d8586944f540453

SHA256
a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec

SHA512
8bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3

Download Submit
memory/3520-1118-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3688-1117-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3688-1120-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4576-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/4576-1-0x0000000000130000-0x000000000013E000-memory.dmp

Filesize
56KB

Download
memory/4576-2-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4576-3-0x0000000005DA0000-0x0000000005EBE000-memory.dmp

Filesize
1.1MB

Download
memory/4576-31-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-29-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-67-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-63-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-61-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-59-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-57-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-53-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-51-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-49-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-47-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-46-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-43-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-41-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-39-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-37-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-35-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-27-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-25-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-23-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-21-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-19-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-15-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-13-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-11-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-9-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-7-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-65-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-56-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-33-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-17-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-5-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-4-0x0000000005DA0000-0x0000000005EB8000-memory.dmp

Filesize
1.1MB

Download
memory/4576-1078-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4576-1079-0x0000000006080000-0x0000000006118000-memory.dmp

Filesize
608KB

Download
memory/4576-1080-0x0000000006120000-0x000000000616C000-memory.dmp

Filesize
304KB

Download
memory/4576-1081-0x0000000007920000-0x0000000007EC4000-memory.dmp

Filesize
5.6MB

Download
memory/4576-1082-0x00000000073A0000-0x00000000073F4000-memory.dmp

Filesize
336KB

Download
memory/4576-1087-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4576-1088-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4576-1089-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4576-1092-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4692-1096-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4692-1128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download