remcos | 304947e91f66751b25d0899c7b9feffe43a5620b13fd5de4a8c5642d638ce45f

Analysis

max time kernel
147s
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
16/01/2025, 08:58

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General

Target

DOCUMET7887RAMADA@#$@!.exe
Size

1.2MB
MD5

6dbfced7845c936a56c3685329dc24d9
SHA1

416db985d9b8defa1b99d17956aae3d767d9d92b
SHA256

304947e91f66751b25d0899c7b9feffe43a5620b13fd5de4a8c5642d638ce45f
SHA512

9ca83f6d19299abdfa872713d3646737e6319ef4c422d0af7c9bbd237a199f058126f05a451c91057970ac000d885b35b34fd3d46307947ee67847af6dca96f4
SSDEEP

24576:myZDPLNLlTznkEU9gld5cYSOXQkPoNW+8pwcyLy2wFV3y:PrLlTgEcgzXX1PYAFn3y

Score

10^/10

remcos sent discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Sent

haleleeh8iuoty1.duckdns.org:8347

haleleeh8iuoty1.duckdns.org:37830

haleleeh8iuoty2.duckdns.org:8347

haleleeh8iuoty3.duckdns.org:8347

haleleeh8iuoty4.duckdns.org:8347

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
true
install_flag
false
keylog_crypt
false
keylog_file
kmirtup.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
aksoetuise-Y9DD4X
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4764	powershell.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bemixt = "%Teknologiseringerne% -windowstyle 1 $Graensefunktion=(Get-Item 'HKCU:\\Software\\Genindlggelsen\\').GetValue('Pvc');%Teknologiseringerne% ($Graensefunktion)"	reg.exe

Blocklisted process makes network request 7 IoCs

flow	pid	Process
24	4844	msiexec.exe
26	4844	msiexec.exe
28	4844	msiexec.exe
30	4844	msiexec.exe
34	4844	msiexec.exe
37	4844	msiexec.exe
52	4844	msiexec.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
23	drive.google.com
24	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4844	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4764	powershell.exe
4844	msiexec.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\deistic.ini	DOCUMET7887RAMADA@#$@!.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\resources\bumpee\Ressourcekrvende.lnk	DOCUMET7887RAMADA@#$@!.exe
File opened for modification	C:\Windows\Fonts\sluttishly\nonfeverish.tin	DOCUMET7887RAMADA@#$@!.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 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	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	DOCUMET7887RAMADA@#$@!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3860	reg.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe
4764	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4764	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	4764	powershell.exe
Token: SeIncreaseQuotaPrivilege	4764	powershell.exe
Token: SeSecurityPrivilege	4764	powershell.exe
Token: SeTakeOwnershipPrivilege	4764	powershell.exe
Token: SeLoadDriverPrivilege	4764	powershell.exe
Token: SeSystemProfilePrivilege	4764	powershell.exe
Token: SeSystemtimePrivilege	4764	powershell.exe
Token: SeProfSingleProcessPrivilege	4764	powershell.exe
Token: SeIncBasePriorityPrivilege	4764	powershell.exe
Token: SeCreatePagefilePrivilege	4764	powershell.exe
Token: SeBackupPrivilege	4764	powershell.exe
Token: SeRestorePrivilege	4764	powershell.exe
Token: SeShutdownPrivilege	4764	powershell.exe
Token: SeDebugPrivilege	4764	powershell.exe
Token: SeSystemEnvironmentPrivilege	4764	powershell.exe
Token: SeRemoteShutdownPrivilege	4764	powershell.exe
Token: SeUndockPrivilege	4764	powershell.exe
Token: SeManageVolumePrivilege	4764	powershell.exe
Token: 33	4764	powershell.exe
Token: 34	4764	powershell.exe
Token: 35	4764	powershell.exe
Token: 36	4764	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4844	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 4764	1528	DOCUMET7887RAMADA@#$@!.exe	82
PID 1528 wrote to memory of 4764	1528	DOCUMET7887RAMADA@#$@!.exe	82
PID 1528 wrote to memory of 4764	1528	DOCUMET7887RAMADA@#$@!.exe	82
PID 4764 wrote to memory of 4844	4764	powershell.exe	89
PID 4764 wrote to memory of 4844	4764	powershell.exe	89
PID 4764 wrote to memory of 4844	4764	powershell.exe	89
PID 4764 wrote to memory of 4844	4764	powershell.exe	89
PID 4844 wrote to memory of 5076	4844	msiexec.exe	92
PID 4844 wrote to memory of 5076	4844	msiexec.exe	92
PID 4844 wrote to memory of 5076	4844	msiexec.exe	92
PID 5076 wrote to memory of 3860	5076	cmd.exe	94
PID 5076 wrote to memory of 3860	5076	cmd.exe	94
PID 5076 wrote to memory of 3860	5076	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\DOCUMET7887RAMADA@#$@!.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMET7887RAMADA@#$@!.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Dynamik=GC -raw 'C:\Users\Admin\AppData\Roaming\Brixvold\reclusely\Krieker213.Fla';$balsal=$Dynamik.SubString(57497,3);.$balsal($Dynamik)"
  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:4764
- - 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:4844
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Bemixt" /t REG_EXPAND_SZ /d "%Teknologiseringerne% -windowstyle 1 $Graensefunktion=(Get-Item 'HKCU:\Software\Genindlggelsen\').GetValue('Pvc');%Teknologiseringerne% ($Graensefunktion)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:5076
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Bemixt" /t REG_EXPAND_SZ /d "%Teknologiseringerne% -windowstyle 1 $Graensefunktion=(Get-Item 'HKCU:\Software\Genindlggelsen\').GetValue('Pvc');%Teknologiseringerne% ($Graensefunktion)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:3860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eu4ounpo.lvr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Brixvold\reclusely\Flanr.fje

Filesize
331KB

MD5
06acea567a0ded05680dbb9de58d0311

SHA1
e84e2cde7049ce616b5cc579ce4b4d837423e586

SHA256
fd3f116786b5db01589d0460c9e1ffccdc468237ee2db9941482c904bc20500b

SHA512
e5c9492b5c49f75c92f45c9b577d67854d989e5672cfc3c2f8b4e831b00082f180834080e398bef69dcd0d3611d4404879e4b6ee9ef57afb2c421ea7f422bc14

Download Submit
C:\Users\Admin\AppData\Roaming\Brixvold\reclusely\Krieker213.Fla

Filesize
56KB

MD5
71ec49d3afc6876b0238400570d4028d

SHA1
e661e5ca92fa77b576dd75c8d981936b2db5be88

SHA256
178d63022c2e5d42cd6f8dd983b8a4a19568e1370efad6c9c51f4b8807964885

SHA512
dae10533f8b54e5dcd1e929a2af3270f201e22566961d27ef4c52ad359b821a4b95bab5469047fe61271111876208833450010d8cf1ce9bd73edcd829d6f21e2

Download Submit
memory/4764-52-0x0000000007E20000-0x0000000007E3A000-memory.dmp

Filesize
104KB

Download
memory/4764-48-0x0000000007D60000-0x0000000007D6A000-memory.dmp

Filesize
40KB

Download
memory/4764-12-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/4764-10-0x0000000005920000-0x0000000005F48000-memory.dmp

Filesize
6.2MB

Download
memory/4764-13-0x0000000006130000-0x0000000006196000-memory.dmp

Filesize
408KB

Download
memory/4764-23-0x00000000062A0000-0x00000000065F4000-memory.dmp

Filesize
3.3MB

Download
memory/4764-24-0x00000000067E0000-0x00000000067FE000-memory.dmp

Filesize
120KB

Download
memory/4764-25-0x0000000006820000-0x000000000686C000-memory.dmp

Filesize
304KB

Download
memory/4764-26-0x0000000006D50000-0x0000000006DE6000-memory.dmp

Filesize
600KB

Download
memory/4764-27-0x0000000006D00000-0x0000000006D1A000-memory.dmp

Filesize
104KB

Download
memory/4764-28-0x00000000077E0000-0x0000000007802000-memory.dmp

Filesize
136KB

Download
memory/4764-29-0x0000000007E40000-0x00000000083E4000-memory.dmp

Filesize
5.6MB

Download
memory/4764-9-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-31-0x0000000008A70000-0x00000000090EA000-memory.dmp

Filesize
6.5MB

Download
memory/4764-33-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-34-0x00000000701A0000-0x00000000701EC000-memory.dmp

Filesize
304KB

Download
memory/4764-32-0x0000000007BF0000-0x0000000007C22000-memory.dmp

Filesize
200KB

Download
memory/4764-44-0x0000000007C30000-0x0000000007C4E000-memory.dmp

Filesize
120KB

Download
memory/4764-45-0x0000000007C60000-0x0000000007D03000-memory.dmp

Filesize
652KB

Download
memory/4764-46-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-47-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-55-0x00000000085C0000-0x00000000085E4000-memory.dmp

Filesize
144KB

Download
memory/4764-49-0x0000000007D80000-0x0000000007D91000-memory.dmp

Filesize
68KB

Download
memory/4764-50-0x0000000007DD0000-0x0000000007DDE000-memory.dmp

Filesize
56KB

Download
memory/4764-51-0x0000000007DE0000-0x0000000007DF4000-memory.dmp

Filesize
80KB

Download
memory/4764-7-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

Filesize
4KB

Download
memory/4764-11-0x00000000057B0000-0x00000000057D2000-memory.dmp

Filesize
136KB

Download
memory/4764-54-0x0000000008590000-0x00000000085BA000-memory.dmp

Filesize
168KB

Download
memory/4764-53-0x0000000007E10000-0x0000000007E18000-memory.dmp

Filesize
32KB

Download
memory/4764-56-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-58-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

Filesize
4KB

Download
memory/4764-59-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-60-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-8-0x0000000005190000-0x00000000051C6000-memory.dmp

Filesize
216KB

Download
memory/4764-62-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-64-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-63-0x00000000090F0000-0x000000000ACEF000-memory.dmp

Filesize
28.0MB

Download
memory/4764-65-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-66-0x0000000073D10000-0x00000000744C0000-memory.dmp

Filesize
7.7MB

Download
memory/4844-94-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-97-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-86-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-88-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-89-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-79-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-93-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-92-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-83-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-91-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-95-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-96-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-90-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download
memory/4844-98-0x0000000001250000-0x00000000024A4000-memory.dmp

Filesize
18.3MB

Download