bb46d0c8b43a92fda32622b15fd8060dedf1f0666c8e536cdad49ad3e1a79ade

General

Target

dd9d7cf9372a5737863d4dc33f132b9a.exe
Size

52KB
MD5

dd9d7cf9372a5737863d4dc33f132b9a
SHA1

4380d4afc2786ee77d2644aa1e34c9b77951b5d3
SHA256

bb46d0c8b43a92fda32622b15fd8060dedf1f0666c8e536cdad49ad3e1a79ade
SHA512

e4f2f85f8d9e41bce53868d78fb74cbcfaa8fa9df7e997f442a5858792b11b487cd7684bd3fd079006385774b45ef2e4d70a8793e367104e6b600a473895ae03
SSDEEP

768:7ynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67LhP8D0xj:sb1MsHz3JDwhyWr+N95OTga6SDej

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Ceno\Parameters\ServiceDll = "C:\\Program Files (x86)\\Windows NT\\259625007.dll"	dd9d7cf9372a5737863d4dc33f132b9a.exe

Deletes itself 1 IoCs

pid	Process
1900	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2088	Ceno.exe

Loads dropped DLL 7 IoCs

pid	Process
2904	dd9d7cf9372a5737863d4dc33f132b9a.exe
1716	svchost.exe
1716	svchost.exe
2088	Ceno.exe
2088	Ceno.exe
2088	Ceno.exe
2088	Ceno.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Ceno.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ceno.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows NT\259625007.dll	dd9d7cf9372a5737863d4dc33f132b9a.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	dd9d7cf9372a5737863d4dc33f132b9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ceno.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1900	cmd.exe
2288	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Ceno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Ceno.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Ceno.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Ceno.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Ceno.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Ceno.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Ceno.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Ceno.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2288	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2904	dd9d7cf9372a5737863d4dc33f132b9a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2904	dd9d7cf9372a5737863d4dc33f132b9a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2904	dd9d7cf9372a5737863d4dc33f132b9a.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 1900	2904	dd9d7cf9372a5737863d4dc33f132b9a.exe	31
PID 2904 wrote to memory of 1900	2904	dd9d7cf9372a5737863d4dc33f132b9a.exe	31
PID 2904 wrote to memory of 1900	2904	dd9d7cf9372a5737863d4dc33f132b9a.exe	31
PID 2904 wrote to memory of 1900	2904	dd9d7cf9372a5737863d4dc33f132b9a.exe	31
PID 1900 wrote to memory of 2288	1900	cmd.exe	33
PID 1900 wrote to memory of 2288	1900	cmd.exe	33
PID 1900 wrote to memory of 2288	1900	cmd.exe	33
PID 1900 wrote to memory of 2288	1900	cmd.exe	33
PID 1716 wrote to memory of 2088	1716	svchost.exe	34
PID 1716 wrote to memory of 2088	1716	svchost.exe	34
PID 1716 wrote to memory of 2088	1716	svchost.exe	34
PID 1716 wrote to memory of 2088	1716	svchost.exe	34

C:\Users\Admin\AppData\Local\Temp\dd9d7cf9372a5737863d4dc33f132b9a.exe
"C:\Users\Admin\AppData\Local\Temp\dd9d7cf9372a5737863d4dc33f132b9a.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\dd9d7cf9372a5737863d4dc33f132b9a.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2288

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ceno"
1⤵
PID:2352

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ceno"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\Ceno.exe
  C:\Windows\system32\Ceno.exe "c:\program files (x86)\windows nt\259625007.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  PID:2088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Program Files (x86)\Windows NT\259625007.dll

Filesize
25KB

MD5
d1daf1ec8018a537a962b2305c135297

SHA1
c4b5101fa69c839bf84a480a6cd67a08533897d7

SHA256
ded79cccb7a76cc1306d4f7375df3ecd3abfc3032b24d41a6baddeda59d0ff60

SHA512
6ee1d9b49d1edd77e89d0671034f5fbe5c429f84b30c5de267e6488aae17d6e88db057fff99d46313a9f8ef49514c7c6fe95ee9a6f0c55be353ad95b25c0a65e

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\Windows\SysWOW64\Ceno.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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Analysis

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