remcos | 14783a055ffaf5ff5e003128975ba33ec37264319a4e282b45c2bde946444a6e

Analysis

max time kernel
148s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2024, 15:22

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General

Target
Image_Product_Inquiry_Request_Villoslada.exe
Size 701KB
Sample241108-ssaymsxkcl
SHA256 3e6b2955e8e0ddd77f3886b9727ea7a38657d4f0af47130559a8cefe1c87ea97
MD5 74436e65e2a2612fb6a127990d81f44d
SHA1 d3fb7c67c6441d908a91d6e6b86e38c85b47b877
SHA512 bbd6102c6759d61cb701cf235e2bfea442cfd702ad9def2e4d5134259678ecc0f79488e66d9e7bdfa39ae621f25ed5c68ccc21a298ddb5df497bd72070c0d491
SSDEEP 12288:4Mwd9MAsZuwxTSesxl98vQJXQNqlSFQkuizwFFRNkpXmGzEk/in5IAvmtnRHPG62:4Mwd9MAgSBP84JeqlSFQdimvkm2t/6kY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos eda bro collection discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

eda bro

185.150.191.117:4609

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-CK59IO
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/2052-83-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2596-82-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3424-79-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3424-79-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2052-83-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	msiexec.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
32	4000	msiexec.exe
34	4000	msiexec.exe
36	4000	msiexec.exe
37	4000	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4000	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
804	powershell.exe
4000	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4000 set thread context of 2052	4000	msiexec.exe	105
PID 4000 set thread context of 3424	4000	msiexec.exe	106
PID 4000 set thread context of 2596	4000	msiexec.exe	107

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
804	powershell.exe

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	Image_Product_Inquiry_Request_Villoslada.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
804	powershell.exe
804	powershell.exe
804	powershell.exe
804	powershell.exe
804	powershell.exe
804	powershell.exe
804	powershell.exe
2596	msiexec.exe
2596	msiexec.exe
2052	msiexec.exe
2052	msiexec.exe
2052	msiexec.exe
2052	msiexec.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
804	powershell.exe
4000	msiexec.exe
4000	msiexec.exe
4000	msiexec.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	powershell.exe
Token: SeIncreaseQuotaPrivilege	804	powershell.exe
Token: SeSecurityPrivilege	804	powershell.exe
Token: SeTakeOwnershipPrivilege	804	powershell.exe
Token: SeLoadDriverPrivilege	804	powershell.exe
Token: SeSystemProfilePrivilege	804	powershell.exe
Token: SeSystemtimePrivilege	804	powershell.exe
Token: SeProfSingleProcessPrivilege	804	powershell.exe
Token: SeIncBasePriorityPrivilege	804	powershell.exe
Token: SeCreatePagefilePrivilege	804	powershell.exe
Token: SeBackupPrivilege	804	powershell.exe
Token: SeRestorePrivilege	804	powershell.exe
Token: SeShutdownPrivilege	804	powershell.exe
Token: SeDebugPrivilege	804	powershell.exe
Token: SeSystemEnvironmentPrivilege	804	powershell.exe
Token: SeRemoteShutdownPrivilege	804	powershell.exe
Token: SeUndockPrivilege	804	powershell.exe
Token: SeManageVolumePrivilege	804	powershell.exe
Token: 33	804	powershell.exe
Token: 34	804	powershell.exe
Token: 35	804	powershell.exe
Token: 36	804	powershell.exe
Token: SeDebugPrivilege	2596	msiexec.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 804	4996	Image_Product_Inquiry_Request_Villoslada.exe	98
PID 4996 wrote to memory of 804	4996	Image_Product_Inquiry_Request_Villoslada.exe	98
PID 4996 wrote to memory of 804	4996	Image_Product_Inquiry_Request_Villoslada.exe	98
PID 804 wrote to memory of 4000	804	powershell.exe	103
PID 804 wrote to memory of 4000	804	powershell.exe	103
PID 804 wrote to memory of 4000	804	powershell.exe	103
PID 804 wrote to memory of 4000	804	powershell.exe	103
PID 4000 wrote to memory of 2052	4000	msiexec.exe	105
PID 4000 wrote to memory of 2052	4000	msiexec.exe	105
PID 4000 wrote to memory of 2052	4000	msiexec.exe	105
PID 4000 wrote to memory of 2052	4000	msiexec.exe	105
PID 4000 wrote to memory of 3424	4000	msiexec.exe	106
PID 4000 wrote to memory of 3424	4000	msiexec.exe	106
PID 4000 wrote to memory of 3424	4000	msiexec.exe	106
PID 4000 wrote to memory of 3424	4000	msiexec.exe	106
PID 4000 wrote to memory of 2596	4000	msiexec.exe	107
PID 4000 wrote to memory of 2596	4000	msiexec.exe	107
PID 4000 wrote to memory of 2596	4000	msiexec.exe	107
PID 4000 wrote to memory of 2596	4000	msiexec.exe	107

C:\Users\Admin\AppData\Local\Temp\Image_Product_Inquiry_Request_Villoslada.exe
"C:\Users\Admin\AppData\Local\Temp\Image_Product_Inquiry_Request_Villoslada.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized "$Rodfstets=Get-Content -Raw 'C:\Users\Admin\AppData\Local\extrality\sheepgate\Adgangseksamener\Computergrej.Alu';$Radiotelegrammets=$Rodfstets.SubString(22603,3);.$Radiotelegrammets($Rodfstets)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:804
- - 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 WriteProcessMemory
    PID:4000
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\tmvt"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2052
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dgamwnv"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:3424
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\fjnxxgokxn"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2596

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

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Downloads

__PSScriptPolicyTest_4pan0cqd.jab.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4pan0cqd.jab.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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tmvt

Path C:\Users\Admin\AppData\Local\Temp\tmvt
Size 4KB
SHA256 d2637d58bb120dc6fefe2f38d6e0d4b308006b8639106a7f9e915fa80b5cc9d9
MD5 ac300aeaf27709e2067788fdd4624843
SHA1 e98edd4615d35de96e30f1a0e13c05b42ee7eb7b
SHA512 09c46e708f9d253dccd4d943639d9f8126f868ae3dcd951aad12222bb98b5d3814676f878c8391b9bdab5dedcf5b9e9eaeb2ad3ffec57bda875198735586d4df
SSDEEP 48:wvvv0zxfvvczxfdvv0zxBvv0zxakvv0z7:mvmxvOp1vmPvmbvm7
MD5 SHA1 SHA512 SSDEEP

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Checkbits.Lre

Path C:\Users\Admin\AppData\Local\extrality\sheepgate\Adgangseksamener\Checkbits.Lre
Size 307KB
SHA256 20f987ec63d89dd5df18fbe804334b7d7c55b6bf81208ded034af6fb48c6f31a
MD5 8f6bc6f261f8da4b9a6c7b31f43607ea
SHA1 9779d645414ba4c7c48d0ccc2d9ded28c7d5eb1d
SHA512 4efcda9c1996a8f483da8263a9272e2696daf16043ad6aa8ad76e97bb53aafa447378a145445ef5f6c29548494533f9704e7c2ba2c83d2760757dd85ce24cc53
SSDEEP 6144:IYH3v3wtpvxmRfl/Uc3jQERpc+OYdLnEpHAyg426vBq4zyJjp9Af5g8v2nMXHunA:R3cERpQgeAb42YyJjDAf68v2M3unIBp
MD5 SHA1 SHA512 SSDEEP

Submit Download

Computergrej.Alu

Path C:\Users\Admin\AppData\Local\extrality\sheepgate\Adgangseksamener\Computergrej.Alu
Size 70KB
SHA256 02ecc22dca838ab93a43d7374bf8db4ff608c6b2d8bb4302011d9786e09f5fe9
MD5 e6d82e81a43a91417e599dc48aa12352
SHA1 0fa7ed8f889897ce3e2cef519196c420f1071d0a
SHA512 a2eab0e9746425a4ce2a100ff688d34e059de229144d269a4b424b770921d4d77559855b32f4b4182bd41db2db49b0084036104631be4f7b76f6f5571b6d3c77
SSDEEP 1536:tfHtG0CM/Nftwi1EVV/XN+oWtxZEFSIEH+liFZmxzXZ4tDqK+4y:tfH8A+W85d+oWtkFSIEDVtby
MD5 SHA1 SHA512 SSDEEP

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memory/804-59-0x000000007380E000-0x000000007380F000-memory.dmp

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memory/804-13-0x0000000004A50000-0x0000000004A72000-memory.dmp

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memory/804-15-0x0000000005320000-0x0000000005386000-memory.dmp

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memory/804-16-0x0000000005400000-0x0000000005466000-memory.dmp

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memory/804-60-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-22-0x0000000005470000-0x00000000057C4000-memory.dmp

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memory/804-27-0x0000000005A20000-0x0000000005A3E000-memory.dmp

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memory/804-28-0x0000000005A50000-0x0000000005A9C000-memory.dmp

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memory/804-29-0x0000000006BD0000-0x0000000006C66000-memory.dmp

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memory/804-30-0x0000000005F20000-0x0000000005F3A000-memory.dmp

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memory/804-31-0x0000000005F90000-0x0000000005FB2000-memory.dmp

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memory/804-32-0x0000000007280000-0x0000000007824000-memory.dmp

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memory/804-12-0x0000000004B80000-0x00000000051A8000-memory.dmp

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memory/804-34-0x0000000007EB0000-0x000000000852A000-memory.dmp

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memory/804-37-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-36-0x000000006FC90000-0x000000006FCDC000-memory.dmp

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memory/804-38-0x0000000070390000-0x00000000706E4000-memory.dmp

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memory/804-48-0x0000000006E50000-0x0000000006E6E000-memory.dmp

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memory/804-35-0x0000000006E70000-0x0000000006EA2000-memory.dmp

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memory/804-49-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-50-0x0000000006EC0000-0x0000000006F63000-memory.dmp

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memory/804-51-0x0000000006FF0000-0x0000000006FFA000-memory.dmp

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memory/804-52-0x0000000007170000-0x000000000719A000-memory.dmp

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memory/804-53-0x00000000071A0000-0x00000000071C4000-memory.dmp

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memory/804-54-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-55-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-11-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-57-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-14-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-10-0x0000000002410000-0x0000000002446000-memory.dmp

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memory/804-9-0x000000007380E000-0x000000007380F000-memory.dmp

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memory/804-61-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-62-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-63-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-64-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-66-0x0000000073800000-0x0000000073FB0000-memory.dmp

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memory/804-58-0x0000000008530000-0x000000000C8DC000-memory.dmp

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memory/2052-75-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2052-73-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2052-77-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2052-83-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2596-81-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/2596-80-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/2596-82-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3424-79-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3424-78-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3424-74-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4000-93-0x0000000022190000-0x00000000221A9000-memory.dmp

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memory/4000-94-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-89-0x0000000022190000-0x00000000221A9000-memory.dmp

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memory/4000-69-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-92-0x0000000022190000-0x00000000221A9000-memory.dmp

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memory/4000-67-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-95-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-96-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-97-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-98-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-99-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-100-0x0000000000C00000-0x0000000001E54000-memory.dmp

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memory/4000-101-0x0000000000C00000-0x0000000001E54000-memory.dmp

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