805ad2ec493f8800786e2ae461f80b8cc69c4f00b2727ba6e7d137e346f01136

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 21:46

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General

Target

42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Size

2.5MB
MD5

42113c4cbc8c4bf7233f81abdab066b0
SHA1

e799896f5d0ff591d2ef24e8ef1648228edf3108
SHA256

805ad2ec493f8800786e2ae461f80b8cc69c4f00b2727ba6e7d137e346f01136
SHA512

986117c6f830b021edae224c5f33f4e7f1434711c1ebdbf49997cb9f530b85e9a07ae553de20a84a5a10c9f32235b542545b4b98c53e945ae124bbdd48b35c99
SSDEEP

49152:hxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxd:hxx9NUFkQx753uWuCyyxd

Score

10^/10

evasion persistence themida trojan

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	spoolsv.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	spoolsv.exe

Checks BIOS information in registry 2 TTPs 10 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2084	explorer.exe
1528	spoolsv.exe
2236	svchost.exe
3036	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2084	explorer.exe
1528	spoolsv.exe
2236	svchost.exe

Themida packer 16 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1516-0-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/files/0x00380000000144d6-7.dat	themida
behavioral1/memory/2084-11-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/files/0x000800000001474b-18.dat	themida
behavioral1/memory/1528-23-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/files/0x003800000001451d-30.dat	themida
behavioral1/memory/2236-35-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/3036-44-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/1516-43-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/1528-51-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/3036-49-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/1516-53-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/2084-54-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/2236-56-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/2084-55-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral1/memory/2084-68-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorer.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchost.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	spoolsv.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2084	explorer.exe
1528	spoolsv.exe
2236	svchost.exe
3036	spoolsv.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2584	schtasks.exe
2528	schtasks.exe
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2236	svchost.exe
2084	explorer.exe
2084	explorer.exe
2084	explorer.exe
2236	svchost.exe
2236	svchost.exe
2084	explorer.exe
2236	svchost.exe
2236	svchost.exe
2084	explorer.exe
2084	explorer.exe
2236	svchost.exe
2084	explorer.exe
2236	svchost.exe
2084	explorer.exe
2236	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2084	explorer.exe
2236	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2084	explorer.exe
2084	explorer.exe
1528	spoolsv.exe
1528	spoolsv.exe
2236	svchost.exe
2236	svchost.exe
3036	spoolsv.exe
3036	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2084	1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	28
PID 1516 wrote to memory of 2084	1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	28
PID 1516 wrote to memory of 2084	1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	28
PID 1516 wrote to memory of 2084	1516	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	28
PID 2084 wrote to memory of 1528	2084	explorer.exe	29
PID 2084 wrote to memory of 1528	2084	explorer.exe	29
PID 2084 wrote to memory of 1528	2084	explorer.exe	29
PID 2084 wrote to memory of 1528	2084	explorer.exe	29
PID 1528 wrote to memory of 2236	1528	spoolsv.exe	30
PID 1528 wrote to memory of 2236	1528	spoolsv.exe	30
PID 1528 wrote to memory of 2236	1528	spoolsv.exe	30
PID 1528 wrote to memory of 2236	1528	spoolsv.exe	30
PID 2236 wrote to memory of 3036	2236	svchost.exe	31
PID 2236 wrote to memory of 3036	2236	svchost.exe	31
PID 2236 wrote to memory of 3036	2236	svchost.exe	31
PID 2236 wrote to memory of 3036	2236	svchost.exe	31
PID 2084 wrote to memory of 2136	2084	explorer.exe	32
PID 2084 wrote to memory of 2136	2084	explorer.exe	32
PID 2084 wrote to memory of 2136	2084	explorer.exe	32
PID 2084 wrote to memory of 2136	2084	explorer.exe	32
PID 2236 wrote to memory of 2740	2236	svchost.exe	33
PID 2236 wrote to memory of 2740	2236	svchost.exe	33
PID 2236 wrote to memory of 2740	2236	svchost.exe	33
PID 2236 wrote to memory of 2740	2236	svchost.exe	33
PID 2236 wrote to memory of 2584	2236	svchost.exe	38
PID 2236 wrote to memory of 2584	2236	svchost.exe	38
PID 2236 wrote to memory of 2584	2236	svchost.exe	38
PID 2236 wrote to memory of 2584	2236	svchost.exe	38
PID 2236 wrote to memory of 2528	2236	svchost.exe	40
PID 2236 wrote to memory of 2528	2236	svchost.exe	40
PID 2236 wrote to memory of 2528	2236	svchost.exe	40
PID 2236 wrote to memory of 2528	2236	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1516
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2084
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1528
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in System32 directory
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2236
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Identifies VirtualBox via ACPI registry values (likely anti-VM)
        Checks BIOS information in registry
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious use of NtSetInformationThreadHideFromDebugger
        Suspicious use of SetWindowsHookEx
        
        PID:3036
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 21:48 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2740
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 21:49 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2584
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 21:50 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2528
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\Resources\Themes\explorer.exe

Filesize
2.5MB

MD5
54e4577084c77b504644e873300c5db6

SHA1
d018312cd042a9bc7d14323af90ba1bfa9bd747b

SHA256
e0b73b447231b95a369e510594ff0563ed95dab13d9f8c5d6f6637077c4ba889

SHA512
b16a695760112ca4d72e8c8f17fcbbdc553aff6a55f416caba21817d3705bafec34d1b33ad63e77ad765d21d835cab93ff8db40c776fd2a7ff3d82b389c48230

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
2.5MB

MD5
32680a4f26863ffcc276256b9d19fe89

SHA1
955bb6a71d00b73f6386286d8c01b3be49693743

SHA256
23e16cec75468e181a236ef5f3eb54a18451d44231636aad958c187a59731ee8

SHA512
77cbd7d524ce45f8bd5439d8ef4789b8ebdf10cacca86899995573119b285b88353befa0754e2ef2480164a42c6f82decbff4e60d2a1c8a537d5ed69143db63f

Download Submit
\Windows\Resources\svchost.exe

Filesize
2.5MB

MD5
5bf120f819c6768dac3d7b4c62670186

SHA1
60ecc15fae78d49ca050d64e1d35357361b72501

SHA256
16b77b5d896764845dc60e45f37108d1f8742b49a6c92b843f4c2d1077b9a53b

SHA512
a694e22f008184953f4c86796714abd5e9912c2d0f7b22a9302a635133b12b89fac58a4617556fe5f3d7e3865970cf31e74041b344cc10479099f584028d000b

Download Submit
memory/1516-1-0x00000000773D0000-0x00000000773D2000-memory.dmp

Filesize
8KB

Download
memory/1516-53-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1516-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1516-43-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1528-23-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1528-51-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1528-34-0x0000000003590000-0x0000000003B9E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-54-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-68-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-57-0x0000000003970000-0x0000000003F7E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-22-0x0000000003970000-0x0000000003F7E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-55-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2084-11-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2236-56-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2236-42-0x00000000032A0000-0x00000000038AE000-memory.dmp

Filesize
6.1MB

Download
memory/2236-35-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3036-49-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3036-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download