remcos | a6d6d1c8299f97f966d72373e999b5a8e6768914e27d5533307cf6878b95dce2

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 04:38

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General

Target

HKP098767890HJ.exe
Size

813KB
MD5

d6b16370cd4e60185aa88607316a0c05
SHA1

7fbc63b1203617c67e5491745beaedb424baed78
SHA256

a6d6d1c8299f97f966d72373e999b5a8e6768914e27d5533307cf6878b95dce2
SHA512

16c468948e568343ab1a1460d82b4c5859d09043e3a0115aa9c0aefeabfa22c796cca505ede8b1f194764dda7c5263979230e3fa272ee1fb3b21919202b01906
SSDEEP

24576:Erl6kD68JmlotQfXTwzecW/wCyFbxXdRC:yl328U2yfdcZFFd

Score

10^/10

remcos remotehost collection discovery rat spyware stealer upx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.210.150.26:3678

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-MKYDDH
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
Remcos family
remcos

Detected Nirsoft tools 6 IoCs

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

resource	yara_rule
behavioral2/memory/4220-58-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4808-68-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4220-63-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2580-59-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2580-57-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2580-71-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4220-58-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4220-63-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2580-59-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2580-57-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2580-71-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\outvaunts.vbs	outvaunts.exe

Executes dropped EXE 4 IoCs

pid	Process
5052	outvaunts.exe
2580	outvaunts.exe
4220	outvaunts.exe
4808	outvaunts.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	outvaunts.exe

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2712-18-0x0000000000B90000-0x0000000000D54000-memory.dmp	autoit_exe
behavioral2/memory/5052-33-0x00000000013B0000-0x00000000017B0000-memory.dmp	autoit_exe
behavioral2/memory/5052-64-0x0000000000770000-0x0000000000934000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5052 set thread context of 2580	5052	outvaunts.exe	83
PID 5052 set thread context of 4220	5052	outvaunts.exe	84
PID 5052 set thread context of 4808	5052	outvaunts.exe	85

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2712-0-0x0000000000B90000-0x0000000000D54000-memory.dmp	upx
behavioral2/files/0x0007000000023c96-15.dat	upx
behavioral2/memory/5052-16-0x0000000000770000-0x0000000000934000-memory.dmp	upx
behavioral2/memory/2712-18-0x0000000000B90000-0x0000000000D54000-memory.dmp	upx
behavioral2/memory/5052-64-0x0000000000770000-0x0000000000934000-memory.dmp	upx

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	outvaunts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outvaunts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HKP098767890HJ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outvaunts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outvaunts.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2580	outvaunts.exe
2580	outvaunts.exe
4808	outvaunts.exe
4808	outvaunts.exe
2580	outvaunts.exe
2580	outvaunts.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
5052	outvaunts.exe
5052	outvaunts.exe
5052	outvaunts.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4808	outvaunts.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2712	HKP098767890HJ.exe
2712	HKP098767890HJ.exe
5052	outvaunts.exe
5052	outvaunts.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2712	HKP098767890HJ.exe
2712	HKP098767890HJ.exe
5052	outvaunts.exe
5052	outvaunts.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 5052	2712	HKP098767890HJ.exe	82
PID 2712 wrote to memory of 5052	2712	HKP098767890HJ.exe	82
PID 2712 wrote to memory of 5052	2712	HKP098767890HJ.exe	82
PID 5052 wrote to memory of 2580	5052	outvaunts.exe	83
PID 5052 wrote to memory of 2580	5052	outvaunts.exe	83
PID 5052 wrote to memory of 2580	5052	outvaunts.exe	83
PID 5052 wrote to memory of 2580	5052	outvaunts.exe	83
PID 5052 wrote to memory of 4220	5052	outvaunts.exe	84
PID 5052 wrote to memory of 4220	5052	outvaunts.exe	84
PID 5052 wrote to memory of 4220	5052	outvaunts.exe	84
PID 5052 wrote to memory of 4220	5052	outvaunts.exe	84
PID 5052 wrote to memory of 4808	5052	outvaunts.exe	85
PID 5052 wrote to memory of 4808	5052	outvaunts.exe	85
PID 5052 wrote to memory of 4808	5052	outvaunts.exe	85
PID 5052 wrote to memory of 4808	5052	outvaunts.exe	85

C:\Users\Admin\AppData\Local\Temp\HKP098767890HJ.exe
"C:\Users\Admin\AppData\Local\Temp\HKP098767890HJ.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
  "C:\Users\Admin\AppData\Local\Temp\HKP098767890HJ.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\rrqea"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2580
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\ctvwbmca"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:4220
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\enahufnuvpp"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
e128230e02e7f0b33fe92818916661cc

SHA1
900df4e7d6d19769488c46c060e0e72a25b2f0c8

SHA256
1987260867550b13c907727614a8318993c981216394ac26c5e43dd8d7cb21db

SHA512
cdcf2e45fa3d247e85a58f8d7309557a4deef46484ae2b627c4704a446c2424ba64280b84305f9c286a27ab127202e53e6e05b859459ac2de08a53e4bf61239e

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

Filesize
481KB

MD5
134b1f6d71374d538d0ce5268bc547d2

SHA1
4ed396631e1f50adfecebdad795152ad189f1516

SHA256
6ddf551c3d7019061800785cc189ed10619ea9bf3234f5504e1ced315d0d2e96

SHA512
d108362aa77dcf0c824b2090f58f7f6ad0f53d76fad5ab6fe9271330bfe3337262b82ce9a5150e03139df8ed9c42417c9eeeb12cc1847067f91c20e7cbe64539

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

Filesize
145KB

MD5
b97cfa7d4c0914ef3bb656cf7b6a95c6

SHA1
e6c61c2a88f83b07a868e7b4f8c6496697944445

SHA256
069ecc03912bf679890e24416e068607345f8c77c7968f75ce52775c471d676f

SHA512
4233719255f746dd17b22c0fbfa60aab086c71de4078b75e7e921bbb5432b35522d04bcb5c3d92bbf4e56d29e950fd8fbafa06c0b69e97e5d3f73301b181782b

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

Filesize
4KB

MD5
57509a6a6267f17bef5e5da8b1df8829

SHA1
0886741be12c4e6dd24688df7b9568e91b2fc2aa

SHA256
4d50e4b2ee7b25d6a88dea6a28503975ca95f98e6e72fcd1ee754d016df3ed3d

SHA512
019c20a2354ef20ff3870ea4d544ae4e7ec21729bfbeb19d2dd2f8b087fcb6b83f259ab2f35e0f3c7f044ebb7c5bbfdfc63f23b811d458a15f5ad35aa9175228

Download Submit
C:\Users\Admin\AppData\Local\complacence\outvaunts.exe

Filesize
813KB

MD5
d6b16370cd4e60185aa88607316a0c05

SHA1
7fbc63b1203617c67e5491745beaedb424baed78

SHA256
a6d6d1c8299f97f966d72373e999b5a8e6768914e27d5533307cf6878b95dce2

SHA512
16c468948e568343ab1a1460d82b4c5859d09043e3a0115aa9c0aefeabfa22c796cca505ede8b1f194764dda7c5263979230e3fa272ee1fb3b21919202b01906

Download Submit
memory/2580-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2580-59-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2580-57-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2580-71-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2580-49-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2712-0-0x0000000000B90000-0x0000000000D54000-memory.dmp

Filesize
1.8MB

Download
memory/2712-12-0x0000000001250000-0x0000000001650000-memory.dmp

Filesize
4.0MB

Download
memory/2712-18-0x0000000000B90000-0x0000000000D54000-memory.dmp

Filesize
1.8MB

Download
memory/4220-53-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4220-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4220-63-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4220-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4808-65-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4808-68-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4808-67-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5052-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-76-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/5052-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-69-0x00000000013B0000-0x00000000017B0000-memory.dmp

Filesize
4.0MB

Download
memory/5052-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-33-0x00000000013B0000-0x00000000017B0000-memory.dmp

Filesize
4.0MB

Download
memory/5052-73-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/5052-64-0x0000000000770000-0x0000000000934000-memory.dmp

Filesize
1.8MB

Download
memory/5052-77-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/5052-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-16-0x0000000000770000-0x0000000000934000-memory.dmp

Filesize
1.8MB

Download
memory/5052-86-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-119-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5052-120-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download