remcos | 788aa5866b08b2cde375e552a28130a12c92cd0d5e034ac9417c6d66ad8f7837

Analysis

max time kernel
299s
max time network
290s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 13:38

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General

Target

CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe
Size

643KB
MD5

5cba30723bcacc171aa6417869f5981c
SHA1

a8abaf40ae64d44f9055d4dd3df2f91ac393ecc1
SHA256

d20dae11fd9de533d5ba84666b26dbf233161d991643d2de08fd043699cddbcc
SHA512

6ebb1d4f664933e6f063759c2a615feb72ef250b5a0ec0f3f9775868bacc661931ee64e9ae943db6f58a43b08eac7350a1f511ebf97620356bc504e81d78c431
SSDEEP

12288:llLIJdKsaouLbYCjUnmITaCQwN44mlIc4G66Jg1KCe4sEftmU3BgKiC:lSJaouPYComqa6fcx66Jg16EfthGC

Score

10^/10

remcos sprede collection discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

SPREDE

oaziamaka111.duckdns.org:4689

oaziamaka111.duckdns.org:4688

oaziamaka222.duckdns.org:4689

oaziamaka222.duckdns.org:4688

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
aleopty.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
deokloksgb-NAYJ41
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

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/3464-82-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3368-87-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4440-80-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4440-80-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3464-82-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4336	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

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kldevare = "%Dishonorer% -windowstyle 1 $Provianterendes=(Get-Item 'HKCU:\\Software\\Decade\\').GetValue('Uprightman');%Dishonorer% ($Provianterendes)"	reg.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
21	3440	msiexec.exe
23	3440	msiexec.exe
25	3440	msiexec.exe
27	3440	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3440	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4336	powershell.exe
3440	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3440 set thread context of 3464	3440	msiexec.exe	102
PID 3440 set thread context of 4440	3440	msiexec.exe	103
PID 3440 set thread context of 3368	3440	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 8 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	CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1824	reg.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
4336	powershell.exe
3464	msiexec.exe
3464	msiexec.exe
3368	msiexec.exe
3368	msiexec.exe
3464	msiexec.exe
3464	msiexec.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
4336	powershell.exe
3440	msiexec.exe
3440	msiexec.exe
3440	msiexec.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	powershell.exe
Token: SeIncreaseQuotaPrivilege	4336	powershell.exe
Token: SeSecurityPrivilege	4336	powershell.exe
Token: SeTakeOwnershipPrivilege	4336	powershell.exe
Token: SeLoadDriverPrivilege	4336	powershell.exe
Token: SeSystemProfilePrivilege	4336	powershell.exe
Token: SeSystemtimePrivilege	4336	powershell.exe
Token: SeProfSingleProcessPrivilege	4336	powershell.exe
Token: SeIncBasePriorityPrivilege	4336	powershell.exe
Token: SeCreatePagefilePrivilege	4336	powershell.exe
Token: SeBackupPrivilege	4336	powershell.exe
Token: SeRestorePrivilege	4336	powershell.exe
Token: SeShutdownPrivilege	4336	powershell.exe
Token: SeDebugPrivilege	4336	powershell.exe
Token: SeSystemEnvironmentPrivilege	4336	powershell.exe
Token: SeRemoteShutdownPrivilege	4336	powershell.exe
Token: SeUndockPrivilege	4336	powershell.exe
Token: SeManageVolumePrivilege	4336	powershell.exe
Token: 33	4336	powershell.exe
Token: 34	4336	powershell.exe
Token: 35	4336	powershell.exe
Token: 36	4336	powershell.exe
Token: SeDebugPrivilege	3368	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3440	msiexec.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 4336	1320	CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe	83
PID 1320 wrote to memory of 4336	1320	CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe	83
PID 1320 wrote to memory of 4336	1320	CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe	83
PID 4336 wrote to memory of 3440	4336	powershell.exe	96
PID 4336 wrote to memory of 3440	4336	powershell.exe	96
PID 4336 wrote to memory of 3440	4336	powershell.exe	96
PID 4336 wrote to memory of 3440	4336	powershell.exe	96
PID 3440 wrote to memory of 4232	3440	msiexec.exe	97
PID 3440 wrote to memory of 4232	3440	msiexec.exe	97
PID 3440 wrote to memory of 4232	3440	msiexec.exe	97
PID 4232 wrote to memory of 1824	4232	cmd.exe	100
PID 4232 wrote to memory of 1824	4232	cmd.exe	100
PID 4232 wrote to memory of 1824	4232	cmd.exe	100
PID 3440 wrote to memory of 3464	3440	msiexec.exe	102
PID 3440 wrote to memory of 3464	3440	msiexec.exe	102
PID 3440 wrote to memory of 3464	3440	msiexec.exe	102
PID 3440 wrote to memory of 3464	3440	msiexec.exe	102
PID 3440 wrote to memory of 4440	3440	msiexec.exe	103
PID 3440 wrote to memory of 4440	3440	msiexec.exe	103
PID 3440 wrote to memory of 4440	3440	msiexec.exe	103
PID 3440 wrote to memory of 4440	3440	msiexec.exe	103
PID 3440 wrote to memory of 3368	3440	msiexec.exe	104
PID 3440 wrote to memory of 3368	3440	msiexec.exe	104
PID 3440 wrote to memory of 3368	3440	msiexec.exe	104
PID 3440 wrote to memory of 3368	3440	msiexec.exe	104

C:\Users\Admin\AppData\Local\Temp\CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe
"C:\Users\Admin\AppData\Local\Temp\CAD_DETAILS_ Copies_6761fa19c0f9d_293874738_IMG__REF2632737463773364_221.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Topskuddene=gc -Raw 'C:\Users\Admin\AppData\Local\Temp\terrorproof\smuttersens\Panics.End';$Flygtningebaggrund=$Topskuddene.SubString(72585,3);.$Flygtningebaggrund($Topskuddene)"
  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:4336
- - 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:3440
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Kldevare" /t REG_EXPAND_SZ /d "%Dishonorer% -windowstyle 1 $Provianterendes=(Get-Item 'HKCU:\Software\Decade\').GetValue('Uprightman');%Dishonorer% ($Provianterendes)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4232
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Kldevare" /t REG_EXPAND_SZ /d "%Dishonorer% -windowstyle 1 $Provianterendes=(Get-Item 'HKCU:\Software\Decade\').GetValue('Uprightman');%Dishonorer% ($Provianterendes)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:1824
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\ifvhvecntnemqmmaiymxaht"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3464
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\thbaowvphvwrtsieriyylmgaum"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:4440
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\dbglopgjdeoedywqjtlaozardsfet"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3368

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uefaj252.4wv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
17eece3240d08aa4811cf1007cfe2585

SHA1
6c10329f61455d1c96e041b6f89ee6260af3bd0f

SHA256
7cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903

SHA512
a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370

Download Submit
C:\Users\Admin\AppData\Local\Temp\terrorproof\smuttersens\Mythopoet151.Gum

Filesize
308KB

MD5
95456efa53e67771a7a366a1729330a5

SHA1
7c6753470c3f2a1919af9608040e31404eb15955

SHA256
4e5986d80aa60a80b07731921a0dbb905f663de679dbc4bfe897ad27fe04555d

SHA512
36bd759c9e49100db6739293ccbb1508b260b5866813d085403e489ec40e86019cfccdebb6a134afdd3fe42410c53a57865ef904eefd7cd33b9944f7cb4f3d13

Download Submit
C:\Users\Admin\AppData\Local\Temp\terrorproof\smuttersens\Panics.End

Filesize
70KB

MD5
fa9db15fb8638e539838260c0f09078b

SHA1
adcb4f9c75b0120d8f0369edd71d75397bd9507f

SHA256
648a811ffe8215aa2f12cdfcbed2ca0efa438a628a0164e592508e56538bbd4b

SHA512
24412e43da7b725aad0bf64347ac718573bd3c95409cb9a1c6f90f9abb474fae46583588b7eb9943d5be829b6466007fb28cefbad59b819d88064b30205b1153

Download Submit
memory/3368-87-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3368-81-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3368-83-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3440-95-0x000000001EB10000-0x000000001EB29000-memory.dmp

Filesize
100KB

Download
memory/3440-89-0x0000000002170000-0x0000000003239000-memory.dmp

Filesize
16.8MB

Download
memory/3440-96-0x000000001EB10000-0x000000001EB29000-memory.dmp

Filesize
100KB

Download
memory/3440-71-0x0000000000F10000-0x0000000002164000-memory.dmp

Filesize
18.3MB

Download
memory/3440-68-0x0000000002170000-0x0000000003239000-memory.dmp

Filesize
16.8MB

Download
memory/3440-92-0x000000001EB10000-0x000000001EB29000-memory.dmp

Filesize
100KB

Download
memory/3464-77-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3464-79-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3464-82-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3464-74-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4336-27-0x0000000005FD0000-0x0000000005FF2000-memory.dmp

Filesize
136KB

Download
memory/4336-63-0x0000000008580000-0x0000000009649000-memory.dmp

Filesize
16.8MB

Download
memory/4336-31-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-33-0x0000000070270000-0x00000000702BC000-memory.dmp

Filesize
304KB

Download
memory/4336-43-0x0000000006EC0000-0x0000000006EDE000-memory.dmp

Filesize
120KB

Download
memory/4336-44-0x0000000006EF0000-0x0000000006F93000-memory.dmp

Filesize
652KB

Download
memory/4336-45-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-46-0x0000000006FF0000-0x0000000006FFA000-memory.dmp

Filesize
40KB

Download
memory/4336-47-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-48-0x0000000007150000-0x0000000007161000-memory.dmp

Filesize
68KB

Download
memory/4336-49-0x0000000007190000-0x000000000719E000-memory.dmp

Filesize
56KB

Download
memory/4336-50-0x00000000071A0000-0x00000000071B4000-memory.dmp

Filesize
80KB

Download
memory/4336-51-0x0000000007200000-0x000000000721A000-memory.dmp

Filesize
104KB

Download
memory/4336-52-0x00000000071D0000-0x00000000071D8000-memory.dmp

Filesize
32KB

Download
memory/4336-53-0x0000000007200000-0x000000000722A000-memory.dmp

Filesize
168KB

Download
memory/4336-54-0x0000000007230000-0x0000000007254000-memory.dmp

Filesize
144KB

Download
memory/4336-55-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4336-56-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-57-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-59-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-60-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-30-0x0000000007F00000-0x000000000857A000-memory.dmp

Filesize
6.5MB

Download
memory/4336-62-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-32-0x0000000006E80000-0x0000000006EB2000-memory.dmp

Filesize
200KB

Download
memory/4336-64-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-65-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-66-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-67-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-28-0x00000000072D0000-0x0000000007874000-memory.dmp

Filesize
5.6MB

Download
memory/4336-5-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

Filesize
4KB

Download
memory/4336-26-0x0000000005F80000-0x0000000005F9A000-memory.dmp

Filesize
104KB

Download
memory/4336-6-0x0000000000CE0000-0x0000000000D16000-memory.dmp

Filesize
216KB

Download
memory/4336-25-0x0000000006C40000-0x0000000006CD6000-memory.dmp

Filesize
600KB

Download
memory/4336-23-0x0000000005A80000-0x0000000005A9E000-memory.dmp

Filesize
120KB

Download
memory/4336-24-0x0000000005AC0000-0x0000000005B0C000-memory.dmp

Filesize
304KB

Download
memory/4336-22-0x00000000054D0000-0x0000000005824000-memory.dmp

Filesize
3.3MB

Download
memory/4336-8-0x0000000004D50000-0x0000000005378000-memory.dmp

Filesize
6.2MB

Download
memory/4336-11-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/4336-7-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4336-12-0x0000000005460000-0x00000000054C6000-memory.dmp

Filesize
408KB

Download
memory/4336-10-0x0000000004AB0000-0x0000000004AD2000-memory.dmp

Filesize
136KB

Download
memory/4336-9-0x0000000073DE0000-0x0000000074590000-memory.dmp

Filesize
7.7MB

Download
memory/4440-76-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4440-80-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4440-75-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download