remcos | 46d11795c1b4ad223369170c61007f771f75326a16d32d1f94338022318e5f15

General

Target

script.ps1
Size

6KB
MD5

109e1f0f40613d5fcbf93e5df4da5c5d
SHA1

da66f0ad18ea055f5bd106ba91dbb0f56f45f1f9
SHA256

46d11795c1b4ad223369170c61007f771f75326a16d32d1f94338022318e5f15
SHA512

5bc2fc543ec8a09d43ccbed1af39b57e3136dab6934630afb51f281bcd9bb130c81c4e64fed5ae3dcd870f9813215672a397c44eeeb69ed5c28ae26f9954d1e1
SSDEEP

192:gfG9kDTU0RRW5zbexk0xY5YZ14ucS8QWHBMwsvnwRq:l9eBRR6Xan5Z1taQ6a9nwRq

Score

10^/10

remcos fresh2 discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Fresh2

C2

sphayer66jugaru1.duckdns.org:1961

sphayer66jugaru1.duckdns.org:1962

sphayer66jugaru2.duckdns.org:1961

sphayer66jugaru3.duckdns.org:1961

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
true
install_flag
false
keylog_crypt
false
keylog_file
lamourtesy.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
juynvfpoils-YFZCIY
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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

Blocklisted process makes network request 12 IoCs

flow	pid	Process
4	2220	powershell.exe
34	2380	msiexec.exe
36	2380	msiexec.exe
68	2380	msiexec.exe
74	2380	msiexec.exe
76	2380	msiexec.exe
81	2380	msiexec.exe
82	2380	msiexec.exe
84	2380	msiexec.exe
86	2380	msiexec.exe
91	2380	msiexec.exe
92	2380	msiexec.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Counterreplying83 = "%Lunaria% -windowstyle 1 $Harddiskenes=(gi 'HKCU:\\Software\\Komprimeringerne\\').GetValue('Missionshotellet');%Lunaria% ($Harddiskenes)"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2380	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1860	powershell.exe
2380	msiexec.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4852	powershell.exe
1860	powershell.exe
2220	powershell.exe

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

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2220	powershell.exe
2220	powershell.exe
4852	powershell.exe
4852	powershell.exe
1860	powershell.exe
1860	powershell.exe
1860	powershell.exe
1860	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1860	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	powershell.exe
Token: SeDebugPrivilege	4852	powershell.exe
Token: SeDebugPrivilege	1860	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2380	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 1860	4852	powershell.exe	98
PID 4852 wrote to memory of 1860	4852	powershell.exe	98
PID 4852 wrote to memory of 1860	4852	powershell.exe	98
PID 1860 wrote to memory of 2380	1860	powershell.exe	101
PID 1860 wrote to memory of 2380	1860	powershell.exe	101
PID 1860 wrote to memory of 2380	1860	powershell.exe	101
PID 1860 wrote to memory of 2380	1860	powershell.exe	101
PID 2380 wrote to memory of 5284	2380	msiexec.exe	102
PID 2380 wrote to memory of 5284	2380	msiexec.exe	102
PID 2380 wrote to memory of 5284	2380	msiexec.exe	102
PID 5284 wrote to memory of 2592	5284	cmd.exe	104
PID 5284 wrote to memory of 2592	5284	cmd.exe	104
PID 5284 wrote to memory of 2592	5284	cmd.exe	104

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1
1⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2220

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" "powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1"
1⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1
  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:1860
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2380
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Counterreplying83" /t REG_EXPAND_SZ /d "%Lunaria% -windowstyle 1 $Harddiskenes=(gi 'HKCU:\Software\Komprimeringerne\').GetValue('Missionshotellet');%Lunaria% ($Harddiskenes)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:5284
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Counterreplying83" /t REG_EXPAND_SZ /d "%Lunaria% -windowstyle 1 $Harddiskenes=(gi 'HKCU:\Software\Komprimeringerne\').GetValue('Missionshotellet');%Lunaria% ($Harddiskenes)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
fdd4677d79b2847280f40e28ceb6438b

SHA1
35521fd240c6ec3d4975316c79af0fe1bd611c6e

SHA256
17b188b77ba2d342473dc98066620da809c8f00d027af2f10aca4d46cc92392c

SHA512
68f8fc1278fc87bcf7040513e3b4efe266000888b460b7f491e99dde789d075342ab9be592dc15673001b3ef5cca0909d62b00c42527695734c8ea1850d6a373

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1fbeuu2d.cqg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Kollegiebyggerier.Pau

Filesize
452KB

MD5
56ba7c0dbf3c2d670e66e38dfc79ea4f

SHA1
832a44b9957ebea7b93f77c8c60f2637df5b2c85

SHA256
872331f23242dab13d999b68dba62824f317f1deab1d39234ae0351213c80b6a

SHA512
a8b2485ea26cc33dfdd38495dc3735563b05b59ed774c9c5b5d6042b8bf6f4143bc96810c7b58598d6e86392dae49f0f4eb854b5d6147adaaed5fff77e47d443

Download Submit
memory/1860-59-0x00000000079D0000-0x0000000007F74000-memory.dmp

Filesize
5.6MB

Download
memory/1860-61-0x0000000007F80000-0x000000000AAEA000-memory.dmp

Filesize
43.4MB

Download
memory/1860-64-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/1860-65-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/1860-57-0x0000000006CD0000-0x0000000006D66000-memory.dmp

Filesize
600KB

Download
memory/1860-58-0x0000000006C00000-0x0000000006C22000-memory.dmp

Filesize
136KB

Download
memory/1860-55-0x0000000007350000-0x00000000079CA000-memory.dmp

Filesize
6.5MB

Download
memory/1860-56-0x0000000005F40000-0x0000000005F5A000-memory.dmp

Filesize
104KB

Download
memory/1860-45-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/1860-44-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/1860-43-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/2220-21-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2220-0-0x00007FFB65103000-0x00007FFB65105000-memory.dmp

Filesize
8KB

Download
memory/2220-10-0x00000229B0EC0000-0x00000229B0EE2000-memory.dmp

Filesize
136KB

Download
memory/2220-11-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2220-12-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2220-14-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2220-15-0x00007FFB65103000-0x00007FFB65105000-memory.dmp

Filesize
8KB

Download
memory/2220-16-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2220-18-0x00007FFB65100000-0x00007FFB65BC1000-memory.dmp

Filesize
10.8MB

Download
memory/2380-77-0x0000000000C60000-0x0000000001EB4000-memory.dmp

Filesize
18.3MB

Download
memory/4852-41-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/4852-25-0x0000000005C40000-0x0000000006268000-memory.dmp

Filesize
6.2MB

Download
memory/4852-23-0x0000000003020000-0x0000000003056000-memory.dmp

Filesize
216KB

Download
memory/4852-24-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4852-26-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4852-42-0x0000000006980000-0x00000000069CC000-memory.dmp

Filesize
304KB

Download
memory/4852-27-0x0000000005A70000-0x0000000005A92000-memory.dmp

Filesize
136KB

Download
memory/4852-22-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/4852-63-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4852-62-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/4852-39-0x0000000006430000-0x0000000006784000-memory.dmp

Filesize
3.3MB

Download
memory/4852-28-0x0000000005B10000-0x0000000005B76000-memory.dmp

Filesize
408KB

Download
memory/4852-68-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4852-29-0x0000000005B80000-0x0000000005BE6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads