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 15:21

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General

Target

orderCF08093-24.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/224-86-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/796-87-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1696-85-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/224-86-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/796-87-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2508	powershell.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	msiexec.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
20	4620	msiexec.exe
28	4620	msiexec.exe
34	4620	msiexec.exe
36	4620	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4620	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2508	powershell.exe
4620	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 796	4620	msiexec.exe	102
PID 4620 set thread context of 224	4620	msiexec.exe	103
PID 4620 set thread context of 1696	4620	msiexec.exe	104

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	orderCF08093-24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
1696	msiexec.exe
1696	msiexec.exe
796	msiexec.exe
796	msiexec.exe
796	msiexec.exe
796	msiexec.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2508	powershell.exe
4620	msiexec.exe
4620	msiexec.exe
4620	msiexec.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeIncreaseQuotaPrivilege	2508	powershell.exe
Token: SeSecurityPrivilege	2508	powershell.exe
Token: SeTakeOwnershipPrivilege	2508	powershell.exe
Token: SeLoadDriverPrivilege	2508	powershell.exe
Token: SeSystemProfilePrivilege	2508	powershell.exe
Token: SeSystemtimePrivilege	2508	powershell.exe
Token: SeProfSingleProcessPrivilege	2508	powershell.exe
Token: SeIncBasePriorityPrivilege	2508	powershell.exe
Token: SeCreatePagefilePrivilege	2508	powershell.exe
Token: SeBackupPrivilege	2508	powershell.exe
Token: SeRestorePrivilege	2508	powershell.exe
Token: SeShutdownPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeSystemEnvironmentPrivilege	2508	powershell.exe
Token: SeRemoteShutdownPrivilege	2508	powershell.exe
Token: SeUndockPrivilege	2508	powershell.exe
Token: SeManageVolumePrivilege	2508	powershell.exe
Token: 33	2508	powershell.exe
Token: 34	2508	powershell.exe
Token: 35	2508	powershell.exe
Token: 36	2508	powershell.exe
Token: SeDebugPrivilege	1696	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4620	msiexec.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2508	2484	orderCF08093-24.exe	83
PID 2484 wrote to memory of 2508	2484	orderCF08093-24.exe	83
PID 2484 wrote to memory of 2508	2484	orderCF08093-24.exe	83
PID 2508 wrote to memory of 4620	2508	powershell.exe	97
PID 2508 wrote to memory of 4620	2508	powershell.exe	97
PID 2508 wrote to memory of 4620	2508	powershell.exe	97
PID 2508 wrote to memory of 4620	2508	powershell.exe	97
PID 4620 wrote to memory of 796	4620	msiexec.exe	102
PID 4620 wrote to memory of 796	4620	msiexec.exe	102
PID 4620 wrote to memory of 796	4620	msiexec.exe	102
PID 4620 wrote to memory of 796	4620	msiexec.exe	102
PID 4620 wrote to memory of 224	4620	msiexec.exe	103
PID 4620 wrote to memory of 224	4620	msiexec.exe	103
PID 4620 wrote to memory of 224	4620	msiexec.exe	103
PID 4620 wrote to memory of 224	4620	msiexec.exe	103
PID 4620 wrote to memory of 1696	4620	msiexec.exe	104
PID 4620 wrote to memory of 1696	4620	msiexec.exe	104
PID 4620 wrote to memory of 1696	4620	msiexec.exe	104
PID 4620 wrote to memory of 1696	4620	msiexec.exe	104

C:\Users\Admin\AppData\Local\Temp\orderCF08093-24.exe
"C:\Users\Admin\AppData\Local\Temp\orderCF08093-24.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- 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:2508
- - 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:4620
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\bovkfvelrtvinhuuzqyptyexnkolc"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:796
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\eqavgnpnebnnqoiyialrelygoryuvnrfd"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:224
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\okony"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1696

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
e56be67d058c702ff77245aabaa2ad10

SHA1
d9aa0b65743e8de36c2b58b859b852a4aeebac85

SHA256
48db7fb32748b99ec751f85e0fe8ebb7ac6fc69d9b563c068ee615ab8e26a61f

SHA512
8e21596c875ff0aa17e7c8d3de9b922d67e8f56525383ad9df814b0e3929d5c5f893ac52bd7942fb600c7a771f8d1f59457ed71cd846a870f4f1c8f6d27e6989

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_lob0uoqo.yzb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
17eece3240d08aa4811cf1007cfe2585

SHA1
6c10329f61455d1c96e041b6f89ee6260af3bd0f

SHA256
7cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903

SHA512
a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370

Download Submit
memory/224-78-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/224-86-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/224-83-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/796-81-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/796-87-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/796-77-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/796-79-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1696-85-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1696-82-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1696-84-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2508-32-0x0000000007730000-0x0000000007762000-memory.dmp

Filesize
200KB

Download
memory/2508-69-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-31-0x00000000085B0000-0x0000000008C2A000-memory.dmp

Filesize
6.5MB

Download
memory/2508-6-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/2508-43-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-44-0x0000000007770000-0x000000000778E000-memory.dmp

Filesize
120KB

Download
memory/2508-33-0x0000000070270000-0x00000000702BC000-memory.dmp

Filesize
304KB

Download
memory/2508-45-0x00000000077A0000-0x0000000007843000-memory.dmp

Filesize
652KB

Download
memory/2508-46-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-47-0x00000000078A0000-0x00000000078AA000-memory.dmp

Filesize
40KB

Download
memory/2508-48-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-49-0x00000000078C0000-0x00000000078D1000-memory.dmp

Filesize
68KB

Download
memory/2508-50-0x0000000007910000-0x000000000791E000-memory.dmp

Filesize
56KB

Download
memory/2508-51-0x0000000007920000-0x0000000007934000-memory.dmp

Filesize
80KB

Download
memory/2508-52-0x0000000007960000-0x000000000797A000-memory.dmp

Filesize
104KB

Download
memory/2508-53-0x0000000007950000-0x0000000007958000-memory.dmp

Filesize
32KB

Download
memory/2508-54-0x0000000008070000-0x000000000809A000-memory.dmp

Filesize
168KB

Download
memory/2508-55-0x00000000080A0000-0x00000000080C4000-memory.dmp

Filesize
144KB

Download
memory/2508-56-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-59-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-58-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/2508-60-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-28-0x00000000068A0000-0x00000000068C2000-memory.dmp

Filesize
136KB

Download
memory/2508-62-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-63-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-64-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-65-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-66-0x0000000008C30000-0x000000000CA55000-memory.dmp

Filesize
62.1MB

Download
memory/2508-68-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-29-0x0000000007980000-0x0000000007F24000-memory.dmp

Filesize
5.6MB

Download
memory/2508-70-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-7-0x0000000004D80000-0x0000000004DB6000-memory.dmp

Filesize
216KB

Download
memory/2508-9-0x00000000054C0000-0x0000000005AE8000-memory.dmp

Filesize
6.2MB

Download
memory/2508-27-0x0000000006850000-0x000000000686A000-memory.dmp

Filesize
104KB

Download
memory/2508-26-0x0000000007290000-0x0000000007326000-memory.dmp

Filesize
600KB

Download
memory/2508-25-0x0000000006680000-0x00000000066CC000-memory.dmp

Filesize
304KB

Download
memory/2508-24-0x0000000006370000-0x000000000638E000-memory.dmp

Filesize
120KB

Download
memory/2508-23-0x0000000005D40000-0x0000000006094000-memory.dmp

Filesize
3.3MB

Download
memory/2508-12-0x0000000005C60000-0x0000000005CC6000-memory.dmp

Filesize
408KB

Download
memory/2508-13-0x0000000005CD0000-0x0000000005D36000-memory.dmp

Filesize
408KB

Download
memory/2508-10-0x0000000005380000-0x00000000053A2000-memory.dmp

Filesize
136KB

Download
memory/2508-11-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/2508-8-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4620-73-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-109-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-96-0x00000000211B0000-0x00000000211C9000-memory.dmp

Filesize
100KB

Download
memory/4620-97-0x00000000211B0000-0x00000000211C9000-memory.dmp

Filesize
100KB

Download
memory/4620-100-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-103-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-93-0x00000000211B0000-0x00000000211C9000-memory.dmp

Filesize
100KB

Download
memory/4620-106-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-76-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-112-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-115-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-118-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-121-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-124-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download
memory/4620-130-0x0000000000810000-0x0000000001A64000-memory.dmp

Filesize
18.3MB

Download