b724c2473b4b6a0a7883dce478fd035009e534e25ad9190b609c06e4ab1053b1

Analysis

max time kernel
142s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 01:36

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General

Target
c034ae9562897648c7969f1ed989ce90_NEIKI.exe
Size 107KB
Sample240509-b1b28sdg29
SHA256 b724c2473b4b6a0a7883dce478fd035009e534e25ad9190b609c06e4ab1053b1
MD5 c034ae9562897648c7969f1ed989ce90
SHA1 3b4c58a8898989187f49ebeaba0fe50bed6846b7
SHA512 bc0d6f49619a430106da11ffad9637f190d678d6d602b35d0b561558f14734d1386641012dbf489eabae481eb04c4664feea129887f41df14af3bb1c3df3dde9
SSDEEP 1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEs:liAXaKDLVaroj6SWzosZGyRtEs
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
7	3404	rundll32.exe
8	3404	rundll32.exe
9	3404	rundll32.exe
10	3404	rundll32.exe
12	3404	rundll32.exe
13	3404	rundll32.exe
18	3404	rundll32.exe
22	3404	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2520	ppkcgvd.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	ppkcgvd.exe

Loads dropped DLL 1 IoCs

pid	Process
3404	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\modhn\\jesqfivz.dll\",GetWindowClass"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2248	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3404	rundll32.exe
3404	rundll32.exe
3404	rundll32.exe
3404	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2200	c034ae9562897648c7969f1ed989ce90_NEIKI.exe
2520	ppkcgvd.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 4848	2200	c034ae9562897648c7969f1ed989ce90_NEIKI.exe	80
PID 2200 wrote to memory of 4848	2200	c034ae9562897648c7969f1ed989ce90_NEIKI.exe	80
PID 2200 wrote to memory of 4848	2200	c034ae9562897648c7969f1ed989ce90_NEIKI.exe	80
PID 4848 wrote to memory of 2248	4848	cmd.exe	83
PID 4848 wrote to memory of 2248	4848	cmd.exe	83
PID 4848 wrote to memory of 2248	4848	cmd.exe	83
PID 4848 wrote to memory of 2520	4848	cmd.exe	85
PID 4848 wrote to memory of 2520	4848	cmd.exe	85
PID 4848 wrote to memory of 2520	4848	cmd.exe	85
PID 2520 wrote to memory of 3404	2520	ppkcgvd.exe	86
PID 2520 wrote to memory of 3404	2520	ppkcgvd.exe	86
PID 2520 wrote to memory of 3404	2520	ppkcgvd.exe	86

C:\Users\Admin\AppData\Local\Temp\c034ae9562897648c7969f1ed989ce90_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\c034ae9562897648c7969f1ed989ce90_NEIKI.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ppkcgvd.exe "C:\Users\Admin\AppData\Local\Temp\c034ae9562897648c7969f1ed989ce90_NEIKI.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2248
- - \??\c:\ppkcgvd.exe
    c:\ppkcgvd.exe "C:\Users\Admin\AppData\Local\Temp\c034ae9562897648c7969f1ed989ce90_NEIKI.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\modhn\jesqfivz.dll",GetWindowClass c:\ppkcgvd.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3404

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

ppkcgvd.exe

Path C:\ppkcgvd.exe
Size 107KB
SHA256 fce3ffe69834b0363e62aa089d8e15ea37c9d131836bb0ad40b15ab9505de653
MD5 a3af9bb40a0736cccd5657bc6c7125ea
SHA1 2ca7b0af4d3d3b28fe2eb9c775c8bfe95a05df32
SHA512 1e84fc80df6357aa1c5d0242e66cd3e63fbf353364b0d7e9bf921949ddffca514c6094eca03d69d4073b7dfbcd10729766149dbf799179b155ba578ab957db48
SSDEEP 1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEse:liAXaKDLVaroj6SWzosZGyRtEse
MD5 SHA1 SHA512 SSDEEP

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jesqfivz.dll

Path \??\c:\modhn\jesqfivz.dll
Size 63KB
SHA256 19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
MD5 06c39ca503305efbf7274f6bf9394f28
SHA1 bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA512 e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931
SSDEEP 1536:WBgQPJw/1HCl8h1hPkLzPT9d2xQLoChpX7wD5OHVAEx:Weq2/1HCa1EzPTfWQM6X74oVp
MD5 SHA1 SHA512 SSDEEP

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memory/2200-0-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/2200-2-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/2520-7-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/3404-10-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/3404-11-0x0000000000CB0000-0x0000000000CB2000-memory.dmp

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memory/3404-12-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/3404-14-0x0000000000CB0000-0x0000000000CB2000-memory.dmp

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memory/3404-15-0x0000000010000000-0x0000000010036000-memory.dmp

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memory/3404-17-0x0000000010000000-0x0000000010036000-memory.dmp

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