remcos | 391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457

Analysis

max time kernel
148s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2024, 01:11

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe
Size 893KB
Sample240809-bj1dhaxflc
SHA256 391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457
MD5 c0a1ffbe408f92e743f0727ca8947da8
SHA1 6b3b87020dfa6b838fb3585853226ba507148c1a
SHA512 9fc0aca36a9a57a2c0864400835439511ad062004a1976b0337757b5937f7ca42085358dcc9ad6ae40d577dc923b3bae5983ff52de58e178b5a21c2797f57597
SSDEEP 24576:PiUmSB/o5d1ubcv5W2AFUNxWG+qJn7/7SktB6L:P/mU/ohubcvM2AVPmXSP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost collection credential_access discovery rat stealer upx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

194.169.175.190:2404

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-LBZ2BK
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 8 IoCs

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

resource	yara_rule
behavioral2/memory/2764-35-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3108-39-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2764-37-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2452-36-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2764-41-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2452-40-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2452-33-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3108-46-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2764-35-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2764-37-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2764-41-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3108-39-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3108-46-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2936-0-0x0000000000DB0000-0x0000000000F9B000-memory.dmp	upx
behavioral2/memory/2936-15-0x0000000000DB0000-0x0000000000F9B000-memory.dmp	upx

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	svchost.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2936-15-0x0000000000DB0000-0x0000000000F9B000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 316	2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe	86
PID 316 set thread context of 3108	316	svchost.exe	91
PID 316 set thread context of 2764	316	svchost.exe	93
PID 316 set thread context of 2452	316	svchost.exe	94

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3108	svchost.exe
2452	svchost.exe
2452	svchost.exe
3108	svchost.exe
3108	svchost.exe
3108	svchost.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe
316	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2452	svchost.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 316	2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe	86
PID 2936 wrote to memory of 316	2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe	86
PID 2936 wrote to memory of 316	2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe	86
PID 2936 wrote to memory of 316	2936	391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe	86
PID 316 wrote to memory of 552	316	svchost.exe	87
PID 316 wrote to memory of 552	316	svchost.exe	87
PID 316 wrote to memory of 552	316	svchost.exe	87
PID 316 wrote to memory of 3608	316	svchost.exe	88
PID 316 wrote to memory of 3608	316	svchost.exe	88
PID 316 wrote to memory of 3608	316	svchost.exe	88
PID 316 wrote to memory of 2176	316	svchost.exe	89
PID 316 wrote to memory of 2176	316	svchost.exe	89
PID 316 wrote to memory of 2176	316	svchost.exe	89
PID 316 wrote to memory of 1940	316	svchost.exe	90
PID 316 wrote to memory of 1940	316	svchost.exe	90
PID 316 wrote to memory of 1940	316	svchost.exe	90
PID 316 wrote to memory of 3108	316	svchost.exe	91
PID 316 wrote to memory of 3108	316	svchost.exe	91
PID 316 wrote to memory of 3108	316	svchost.exe	91
PID 316 wrote to memory of 3108	316	svchost.exe	91
PID 316 wrote to memory of 2092	316	svchost.exe	92
PID 316 wrote to memory of 2092	316	svchost.exe	92
PID 316 wrote to memory of 2092	316	svchost.exe	92
PID 316 wrote to memory of 2764	316	svchost.exe	93
PID 316 wrote to memory of 2764	316	svchost.exe	93
PID 316 wrote to memory of 2764	316	svchost.exe	93
PID 316 wrote to memory of 2764	316	svchost.exe	93
PID 316 wrote to memory of 2452	316	svchost.exe	94
PID 316 wrote to memory of 2452	316	svchost.exe	94
PID 316 wrote to memory of 2452	316	svchost.exe	94
PID 316 wrote to memory of 2452	316	svchost.exe	94

C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe
"C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd"
    3⤵
    PID:552
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd"
    3⤵
    PID:3608
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd"
    3⤵
    PID:2176
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd"
    3⤵
    PID:1940
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:3108
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\qfazpidxdlogtsgierojtwxpduvnsb"
    3⤵
    PID:2092
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\qfazpidxdlogtsgierojtwxpduvnsb"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\tzfsqaorrtgtwgvmvcikwjsgmifwlmeyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2452

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

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

gdvpoqtwpdwcjmkevhbpjsdycnd

Path C:\Users\Admin\AppData\Local\Temp\gdvpoqtwpdwcjmkevhbpjsdycnd
Size 4KB
SHA256 c3071dc55b94db225d9c0f2c1b21c7e8f27dbfd168b85b7d618d8d19950e7ff2
MD5 a7e181f6aa185be0ab0ca68b30406fe6
SHA1 58c86162658dc609615b8b6400f85c92506dfdc8
SHA512 49969eb10e0bf7925940eb7374451f811658ef9ccfb83b86fb337c4d06c3ba17eb0181f598d9e0ec9ca25bfaf644209ac47b73d62ac924e73d03a4dcf8f8dd0f
SSDEEP 48:wvvv0GixfvvcGixfdvv0GixBvv0Gixakvv0Gi7:mvtixvlip1vtiPvtibvti7
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/316-53-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-13-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-14-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-16-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-64-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-17-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-18-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-19-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-20-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-21-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-22-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-23-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-24-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-63-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-62-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-61-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-59-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-60-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-58-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-57-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-56-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-55-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-54-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/316-52-0x0000000010000000-0x0000000010019000-memory.dmp

Download

memory/316-51-0x0000000010000000-0x0000000010019000-memory.dmp

Download

memory/316-48-0x0000000010000000-0x0000000010019000-memory.dmp

Download

memory/2452-33-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/2452-28-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/2452-36-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/2452-30-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/2452-40-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/2764-32-0x0000000000400000-0x0000000000462000-memory.dmp

Download

memory/2764-27-0x0000000000400000-0x0000000000462000-memory.dmp

Download

memory/2764-41-0x0000000000400000-0x0000000000462000-memory.dmp

Download

memory/2764-37-0x0000000000400000-0x0000000000462000-memory.dmp

Download

memory/2764-35-0x0000000000400000-0x0000000000462000-memory.dmp

Download

memory/2936-0-0x0000000000DB0000-0x0000000000F9B000-memory.dmp

Download

memory/2936-12-0x0000000004510000-0x0000000004514000-memory.dmp

Download

memory/2936-15-0x0000000000DB0000-0x0000000000F9B000-memory.dmp

Download

memory/3108-38-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/3108-39-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/3108-34-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/3108-46-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/3108-25-0x0000000000400000-0x0000000000478000-memory.dmp

Download