remcos | a6d6d1c8299f97f966d72373e999b5a8e6768914e27d5533307cf6878b95dce2

Analysis

max time kernel
149s
max time network
151s
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, 04:34

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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/1668-57-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1424-58-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1424-67-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4432-63-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1668-59-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1668-70-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/1424-58-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/1424-67-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1668-57-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1668-59-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1668-70-0x0000000000400000-0x0000000000478000-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
3440	outvaunts.exe
1668	outvaunts.exe
1424	outvaunts.exe
4432	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-1-5-21-3227495264-2217614367-4027411560-1000\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/1980-18-0x0000000000E00000-0x0000000000FC4000-memory.dmp	autoit_exe
behavioral2/memory/3440-33-0x00000000010A0000-0x00000000014A0000-memory.dmp	autoit_exe
behavioral2/memory/3440-68-0x0000000000EA0000-0x0000000001064000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3440 set thread context of 1668	3440	outvaunts.exe	83
PID 3440 set thread context of 1424	3440	outvaunts.exe	84
PID 3440 set thread context of 4432	3440	outvaunts.exe	85

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1980-0-0x0000000000E00000-0x0000000000FC4000-memory.dmp	upx
behavioral2/memory/3440-16-0x0000000000EA0000-0x0000000001064000-memory.dmp	upx
behavioral2/memory/1980-18-0x0000000000E00000-0x0000000000FC4000-memory.dmp	upx
behavioral2/files/0x000a000000023b8a-15.dat	upx
behavioral2/memory/3440-68-0x0000000000EA0000-0x0000000001064000-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	HKP098767890HJ.exe
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	outvaunts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outvaunts.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1668	outvaunts.exe
1668	outvaunts.exe
4432	outvaunts.exe
4432	outvaunts.exe
1668	outvaunts.exe
1668	outvaunts.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
3440	outvaunts.exe
3440	outvaunts.exe
3440	outvaunts.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4432	outvaunts.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1980	HKP098767890HJ.exe
1980	HKP098767890HJ.exe
3440	outvaunts.exe
3440	outvaunts.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1980	HKP098767890HJ.exe
1980	HKP098767890HJ.exe
3440	outvaunts.exe
3440	outvaunts.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 3440	1980	HKP098767890HJ.exe	82
PID 1980 wrote to memory of 3440	1980	HKP098767890HJ.exe	82
PID 1980 wrote to memory of 3440	1980	HKP098767890HJ.exe	82
PID 3440 wrote to memory of 1668	3440	outvaunts.exe	83
PID 3440 wrote to memory of 1668	3440	outvaunts.exe	83
PID 3440 wrote to memory of 1668	3440	outvaunts.exe	83
PID 3440 wrote to memory of 1668	3440	outvaunts.exe	83
PID 3440 wrote to memory of 1424	3440	outvaunts.exe	84
PID 3440 wrote to memory of 1424	3440	outvaunts.exe	84
PID 3440 wrote to memory of 1424	3440	outvaunts.exe	84
PID 3440 wrote to memory of 1424	3440	outvaunts.exe	84
PID 3440 wrote to memory of 4432	3440	outvaunts.exe	85
PID 3440 wrote to memory of 4432	3440	outvaunts.exe	85
PID 3440 wrote to memory of 4432	3440	outvaunts.exe	85
PID 3440 wrote to memory of 4432	3440	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:1980
- 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:3440
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\liivyiy"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1668
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\ncnoztrbtq"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1424
- - C:\Users\Admin\AppData\Local\complacence\outvaunts.exe
    C:\Users\Admin\AppData\Local\complacence\outvaunts.exe /stext "C:\Users\Admin\AppData\Local\Temp\yftgalcupyojv"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4432

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

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b193f2f75c24c01ca5e099247a1170aa

SHA1
f7f65cea265998b4b0f8c813123b3efd445522d6

SHA256
cf27767303516d5c7ba508e1e8e80f47227b4aaf5482d667b058f355eb4b51ae

SHA512
1ddcc5815becad35cc70e842b6604a8dd108e1bf49d0829cd862aaa52e625bc239378c90d59ac1366c61fce82aefa880eb820e40e999054b7f6f08461b15e10f

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\liivyiy

Filesize
4KB

MD5
75379d3dcbcea6a69bc75b884816dd40

SHA1
7e073a03c3bdbbc60375ddbe56bba211c3d412a6

SHA256
cab559f3bbe4a0beb194dffca723b3072184b92687100462eaab04d66fff8de9

SHA512
710c2cee369a57a0039fc0d0c59de6118780210ef60ad0daf374f03ba94ab08039bc2aff821f7c99a0ecd0e16189c52e5b6d630b3d541f7b11375f134b985e8c

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

Filesize
813KB

MD5
d6b16370cd4e60185aa88607316a0c05

SHA1
7fbc63b1203617c67e5491745beaedb424baed78

SHA256
a6d6d1c8299f97f966d72373e999b5a8e6768914e27d5533307cf6878b95dce2

SHA512
16c468948e568343ab1a1460d82b4c5859d09043e3a0115aa9c0aefeabfa22c796cca505ede8b1f194764dda7c5263979230e3fa272ee1fb3b21919202b01906

Download Submit
memory/1424-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1424-53-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1424-67-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1424-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1668-70-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1668-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1668-59-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1668-57-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1668-49-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1980-0-0x0000000000E00000-0x0000000000FC4000-memory.dmp

Filesize
1.8MB

Download
memory/1980-18-0x0000000000E00000-0x0000000000FC4000-memory.dmp

Filesize
1.8MB

Download
memory/1980-12-0x0000000001120000-0x0000000001520000-memory.dmp

Filesize
4.0MB

Download
memory/3440-78-0x00000000010A0000-0x00000000014A0000-memory.dmp

Filesize
4.0MB

Download
memory/3440-86-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-68-0x0000000000EA0000-0x0000000001064000-memory.dmp

Filesize
1.8MB

Download
memory/3440-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-131-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-130-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-120-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-72-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3440-75-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3440-76-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3440-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-33-0x00000000010A0000-0x00000000014A0000-memory.dmp

Filesize
4.0MB

Download
memory/3440-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-16-0x0000000000EA0000-0x0000000001064000-memory.dmp

Filesize
1.8MB

Download
memory/3440-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3440-119-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4432-60-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4432-62-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4432-63-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download