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Analysis
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max time kernel
144s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
08/05/2024, 13:31
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe
Resource
win7-20240419-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe
Resource
win10v2004-20240419-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe
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Size
119KB
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MD5
c61e7d61a2d3fb46d53cf8395043b4d0
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SHA1
7f7926063a828b190cf41b4043007f561e3565d0
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SHA256
5356e532f3ed20944de09a0f02455093de8ea6ac8318411affbf86a02885d270
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SHA512
9284f686d392b47dcfbc4825b25e8551083db92d7db300b4c4af030672c39a413f05ca9ee851828d86b4e7eb8da167264d94b979aaf217a2ff1ca4ee7e0c3a30
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SSDEEP
3072:sOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPh:sIs9OKofHfHTXQLzgvnzHPowYbvrjD/E
Score
7/10
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0039000000013362-10.dat acprotect -
Executes dropped EXE 2 IoCs
pid Process 2716 ctfmen.exe 2496 smnss.exe -
Loads dropped DLL 9 IoCs
pid Process 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 2716 ctfmen.exe 2716 ctfmen.exe 2496 smnss.exe 2408 WerFault.exe 2408 WerFault.exe 2408 WerFault.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" smnss.exe -
Maps connected drives based on registry 3 TTPs 6 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1 smnss.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created C:\Windows\SysWOW64\zipfi.dll smnss.exe File created C:\Windows\SysWOW64\zipfiaq.dll smnss.exe File created C:\Windows\SysWOW64\smnss.exe smnss.exe File created C:\Windows\SysWOW64\ctfmen.exe c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File created C:\Windows\SysWOW64\grcopy.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File created C:\Windows\SysWOW64\smnss.exe c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File opened for modification C:\Windows\SysWOW64\satornas.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File created C:\Windows\SysWOW64\satornas.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File opened for modification C:\Windows\SysWOW64\ctfmen.exe c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File created C:\Windows\SysWOW64\shervans.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File opened for modification C:\Windows\SysWOW64\grcopy.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe File opened for modification C:\Windows\SysWOW64\shervans.dll c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\Lang\ba.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ro.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ta.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ug.txt smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\server\Xusage.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\kaa.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spc.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsjpn.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsptb.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Shades of Blue.htm smnss.exe File opened for modification C:\Program Files\7-Zip\History.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\hi.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\io.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\si.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\uz.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ko.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ku.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sq.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-cn.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsplk.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipssrb.xml smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\jvm.hprof.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fa.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\it.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\th.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsdeu.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Roses.htm smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ast.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\bg.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\id.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\lt.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Peacock.htm smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\THIRDPARTYLICENSEREADME.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\mng2.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsfin.xml smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\README-JDK.html smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ext.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pa-in.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_kor.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipscht.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipssrl.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Stars.htm smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\et.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fi.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_heb.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\az.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\mn.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pt.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\uz-cyrl.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_rtl.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsesp.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Orange Circles.htm smnss.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2408 2496 WerFault.exe 29 -
Modifies registry class 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED} c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" smnss.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2496 smnss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2148 wrote to memory of 2716 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 28 PID 2148 wrote to memory of 2716 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 28 PID 2148 wrote to memory of 2716 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 28 PID 2148 wrote to memory of 2716 2148 c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe 28 PID 2716 wrote to memory of 2496 2716 ctfmen.exe 29 PID 2716 wrote to memory of 2496 2716 ctfmen.exe 29 PID 2716 wrote to memory of 2496 2716 ctfmen.exe 29 PID 2716 wrote to memory of 2496 2716 ctfmen.exe 29 PID 2496 wrote to memory of 2408 2496 smnss.exe 30 PID 2496 wrote to memory of 2408 2496 smnss.exe 30 PID 2496 wrote to memory of 2408 2496 smnss.exe 30 PID 2496 wrote to memory of 2408 2496 smnss.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe"C:\Users\Admin\AppData\Local\Temp\c61e7d61a2d3fb46d53cf8395043b4d0_NEIKI.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\SysWOW64\ctfmen.exectfmen.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2716 -
C:\Windows\SysWOW64\smnss.exeC:\Windows\system32\smnss.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 8164⤵
- Loads dropped DLL
- Program crash
PID:2408
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
183B
MD5e0a629788eef2da3505964f48a435412
SHA1de8038fd3a8ad588f2bd3c91d5754df564b845fa
SHA2568088acfead4a1e3839ba385ac06b38ea3c1288eddd05a09c0fbd9c5bdb4e723d
SHA5120555fd3b8772b91525124e926df93f6f12264f2f3a9c96357eebec3ac1179e9139f74d3d5dcc85141dc37d938497924a41734deb3faf7f7349abb48dd9e2f684
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Filesize
4KB
MD5e2d829fc9b153f9a0185f2496211440c
SHA127e7c0cdb97ad93fd4609d924be66820e93b8679
SHA256f018775a2eaf8486586fb08d6c63d39495fdc7f6a0ee8d1df2c0a08aa0f096ae
SHA5127ffa2f8674dd3964b5a4f57f90ba81f86cf167a08b0b1aad35c1b14e140bef7272e56a4b138e0db61bca1d1083d10f903d094cc3692478b5dbcb9c3e3843a2f6
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Filesize
8KB
MD5daf15b7a20a94c843e884cf264462a92
SHA1149ab9c451e9b0ac81960b1bbed05b0c279d433a
SHA256745960906bae8505a2c5fa3ef7e59ac715e327652061bb3f8e8ca6aac95b1127
SHA5120b3365bb7091a168cc0d18ac1aa40df95cb5627f88e1b9341f05dc1525f9d76af86c992f7ea111af52d403a068b6b14524e065d4f7259d6942eb50e0d8464f65
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Filesize
119KB
MD51624b3c9766a8eb01cc55a99519eb566
SHA14d4e69251659844fc731e0218465356a5345a18f
SHA2567035e74a50c2fd2ccc4fb6f6affc5ad8b7170d9258a4bdc2481c17277b3631a7
SHA512825753b71abc2b395b4006ba9f08f1d3b34cfc2bc90f60eb9d6ec57e3eb53e7c726eb9bc5f344d920cc50b6b795fb6b20caa69016f1ad35b6ab95d50a2a7fa12