805ad2ec493f8800786e2ae461f80b8cc69c4f00b2727ba6e7d137e346f01136

Analysis

max time kernel
154s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.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\VideoBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	spoolsv.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\SystemBiosVersion	spoolsv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
1368	explorer.exe
1088	spoolsv.exe
3440	svchost.exe
3912	spoolsv.exe

Themida packer 18 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/2468-0-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/files/0x000a000000023278-9.dat	themida
behavioral2/memory/2468-7-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/1368-11-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/files/0x000800000002327a-16.dat	themida
behavioral2/memory/1088-20-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/files/0x000800000002327d-27.dat	themida
behavioral2/memory/2468-29-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/3440-30-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/3912-35-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/1088-43-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/3912-41-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/2468-42-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/1368-44-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/3440-45-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/3440-48-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/1368-57-0x0000000000400000-0x0000000000A0E000-memory.dmp	themida
behavioral2/memory/1368-65-0x0000000000400000-0x0000000000A0E000-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	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1368	explorer.exe
1088	spoolsv.exe
3440	svchost.exe
3912	spoolsv.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
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
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe
1368	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1368	explorer.exe
3440	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe
1368	explorer.exe
1368	explorer.exe
1088	spoolsv.exe
1088	spoolsv.exe
3440	svchost.exe
3440	svchost.exe
3912	spoolsv.exe
3912	spoolsv.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 1368	2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	91
PID 2468 wrote to memory of 1368	2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	91
PID 2468 wrote to memory of 1368	2468	42113c4cbc8c4bf7233f81abdab066b0_NEIKI.exe	91
PID 1368 wrote to memory of 1088	1368	explorer.exe	92
PID 1368 wrote to memory of 1088	1368	explorer.exe	92
PID 1368 wrote to memory of 1088	1368	explorer.exe	92
PID 1088 wrote to memory of 3440	1088	spoolsv.exe	93
PID 1088 wrote to memory of 3440	1088	spoolsv.exe	93
PID 1088 wrote to memory of 3440	1088	spoolsv.exe	93
PID 3440 wrote to memory of 3912	3440	svchost.exe	94
PID 3440 wrote to memory of 3912	3440	svchost.exe	94
PID 3440 wrote to memory of 3912	3440	svchost.exe	94

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
- 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:2468
- \??\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
  - 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:1368
- - \??\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
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1088
  - - \??\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
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in System32 directory
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3440
    - - \??\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:3912

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3700 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
1⤵
PID:4996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

C:\Windows\Resources\Themes\explorer.exe

Filesize
2.5MB

MD5
8dbd830cebe75af77fca4afb26116ebc

SHA1
5ede94cd86b6e26886ddec07a28cfff306aff44e

SHA256
152753adad38b6e02f020940eb60b4e194ff36d0350dcd887c17ef05083be1ef

SHA512
752b042bffdaa7e37160f08c0af06cac7b62444aed15c57c1f88b915b6c531b27b39d9fe24f098df28ec4e88f51bf48923bae0f7c3c29dafc139180222ff2d3c

Download Submit
C:\Windows\Resources\spoolsv.exe

Filesize
2.5MB

MD5
fc55a0b6a4c1f90c94ae8432d5b75131

SHA1
d61addc101a4a60a1c59202d276da84347530739

SHA256
7a0a562074f697d31b8ff1db6f25faecbb2457e1824c5e0d2e6aa554162d2f32

SHA512
56ac753a3c68e81a739ee4750279ba139a4785818d68f157c8aa592589e362153d8a4d29dc98761bbb90588f8538fc3b861697e687c3f01f48ae321f253cc9a4

Download Submit
C:\Windows\Resources\svchost.exe

Filesize
2.5MB

MD5
436f60c4253eda623a21644b16a8421d

SHA1
cc2b3fb83ea0e3a54d84dc9e9e88cb784c5f8a42

SHA256
e0d6284148086a57cb4c830ff2f0e063466f2de222c15b4314146d3289a20c7e

SHA512
357613c118f1f0a82812d18206a36c5f8603190a728862aefaea88024d4cc1ca440d85599dde15c1b482f2ddfe60092f9ad5de0bd35c8c39642931f8b9aa7479

Download Submit
memory/1088-43-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1088-20-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1368-65-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1368-57-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1368-11-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/1368-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2468-29-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2468-42-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2468-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2468-7-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/2468-1-0x00000000778A4000-0x00000000778A6000-memory.dmp

Filesize
8KB

Download
memory/3440-30-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3440-45-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3440-48-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3912-35-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download
memory/3912-41-0x0000000000400000-0x0000000000A0E000-memory.dmp

Filesize
6.1MB

Download