Analysis
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max time kernel
52s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/05/2024, 01:36
Static task
static1
Behavioral task
behavioral1
Sample
c034ae9562897648c7969f1ed989ce90_NEIKI.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c034ae9562897648c7969f1ed989ce90_NEIKI.exe
Resource
win10v2004-20240508-en
General
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Target
c034ae9562897648c7969f1ed989ce90_NEIKI.exe
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Size
107KB
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MD5
c034ae9562897648c7969f1ed989ce90
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SHA1
3b4c58a8898989187f49ebeaba0fe50bed6846b7
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SHA256
b724c2473b4b6a0a7883dce478fd035009e534e25ad9190b609c06e4ab1053b1
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SHA512
bc0d6f49619a430106da11ffad9637f190d678d6d602b35d0b561558f14734d1386641012dbf489eabae481eb04c4664feea129887f41df14af3bb1c3df3dde9
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SSDEEP
1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEs:liAXaKDLVaroj6SWzosZGyRtEs
Malware Config
Signatures
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Blocklisted process makes network request 3 IoCs
flow pid Process 4 1364 rundll32.exe 7 1364 rundll32.exe 8 1364 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2736 fozhq.exe -
Executes dropped EXE 1 IoCs
pid Process 2736 fozhq.exe -
Loads dropped DLL 4 IoCs
pid Process 1364 rundll32.exe 1364 rundll32.exe 1364 rundll32.exe 1364 rundll32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ctelvzg\\yauzz.dll\",GetWindowClass" rundll32.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\b: 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.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 668 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1364 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2148 c034ae9562897648c7969f1ed989ce90_NEIKI.exe 2736 fozhq.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2148 wrote to memory of 2928 2148 c034ae9562897648c7969f1ed989ce90_NEIKI.exe 28 PID 2148 wrote to memory of 2928 2148 c034ae9562897648c7969f1ed989ce90_NEIKI.exe 28 PID 2148 wrote to memory of 2928 2148 c034ae9562897648c7969f1ed989ce90_NEIKI.exe 28 PID 2148 wrote to memory of 2928 2148 c034ae9562897648c7969f1ed989ce90_NEIKI.exe 28 PID 2928 wrote to memory of 668 2928 cmd.exe 30 PID 2928 wrote to memory of 668 2928 cmd.exe 30 PID 2928 wrote to memory of 668 2928 cmd.exe 30 PID 2928 wrote to memory of 668 2928 cmd.exe 30 PID 2928 wrote to memory of 2736 2928 cmd.exe 31 PID 2928 wrote to memory of 2736 2928 cmd.exe 31 PID 2928 wrote to memory of 2736 2928 cmd.exe 31 PID 2928 wrote to memory of 2736 2928 cmd.exe 31 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32 PID 2736 wrote to memory of 1364 2736 fozhq.exe 32
Processes
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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:2148 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\fozhq.exe "C:\Users\Admin\AppData\Local\Temp\c034ae9562897648c7969f1ed989ce90_NEIKI.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:668
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\??\c:\fozhq.exec:\fozhq.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:2736 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\ctelvzg\yauzz.dll",GetWindowClass c:\fozhq.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
PID:1364
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
107KB
MD56970fd2df9af92e1e9703023c99ece3a
SHA1751a74c004212dc28a3818e148ebb0e0964aff44
SHA2566c3cefe6ae9d83950d17c162d1f014da2e840a3cd6ace9117c0d63dc2490b155
SHA512ac82844260c3aa05b93f7cf2e173684a34328683813e9c3b6983556820a20929130a1f10da7c81dfffd0ce5a26a423a11b6a3a4b50f95525671c4c3de375b554
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Filesize
63KB
MD506c39ca503305efbf7274f6bf9394f28
SHA1bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450
SHA25619f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867
SHA512e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931