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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
09/05/2024, 04:44
Static task
static1
Behavioral task
behavioral1
Sample
f5f66462166f3f6b0fce4a4274820590_NEIKI.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f5f66462166f3f6b0fce4a4274820590_NEIKI.exe
Resource
win10v2004-20240426-en
General
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Target
f5f66462166f3f6b0fce4a4274820590_NEIKI.exe
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Size
119KB
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MD5
f5f66462166f3f6b0fce4a4274820590
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SHA1
c47a90c204413df2c839b57a4dc5596c44ce7dab
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SHA256
5a23aef35d5eb8e73055bc9b00d99f6116c6ba22b885b66fcb950962ac9f7201
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SHA512
4d80d827fa0d2b82b7ba73d3499c4ee508ccd6f0b99201e964e6690d5165188bda7e364a784c5d432f617e913b5bbfd9ee77e31b3c0e6f88289c0acf2c5f6c5c
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SSDEEP
3072:uO9fv/TlNCwXgsTiqUZF36BCBH3EZkC5Dlm5ZNJT:l9fXTl1XNiqIqCBHclSt
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3672 urdvxc.exe -
Executes dropped EXE 5 IoCs
pid Process 1824 urdvxc.exe 3904 urdvxc.exe 3064 urdvxc.exe 3672 urdvxc.exe 4724 urdvxc.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\urdvxc.exe f5f66462166f3f6b0fce4a4274820590_NEIKI.exe File opened for modification C:\Windows\SysWOW64\urdvxc.exe f5f66462166f3f6b0fce4a4274820590_NEIKI.exe File created C:\Windows\SysWOW64\urdvxc.exe urdvxc.exe File created C:\Windows\SysWOW64\urdvxc.exe urdvxc.exe -
Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\jre\revhnlhn.exe urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\tsbknceh.exe urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\1033\README.HTM urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\MCABOUT.HTM urdvxc.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\batch_window.html urdvxc.exe File opened for modification C:\Program Files\Java\jre-1.8\Welcome.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\PersonaSpy.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\1033\README.HTM urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\chllsvtv.exe urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\PersonaSpy.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\rvhrjtnt.exe urdvxc.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\browse_window.html urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\README.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\MCABOUT.HTM urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\Welcome.html urdvxc.exe File opened for modification C:\Program Files\Java\jre-1.8\Welcome.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPP.HTM urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPP.HTM urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\README.html urdvxc.exe File opened for modification C:\Program Files\Java\jre-1.8\hcjzqenb.exe urdvxc.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\create_stream.html urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\Welcome.html urdvxc.exe -
Modifies registry class 44 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "lcsckreqsvvnrtlr" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\LocalServer32\ = "C:\\Program Files\\Microsoft Office\\root\\vfs\\ProgramFilesCommonX64\\Microsoft Shared\\Smart Tag\\1033\\rvhrjtnt.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8760EE2-84AD-000C-D642-6A9B9BBF9AB0} f5f66462166f3f6b0fce4a4274820590_NEIKI.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "srjnvbsvrrwblrqs" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\ = "cjrelltbshwnlksb" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\LocalServer32\ = "C:\\Program Files\\Java\\jre-1.8\\hcjzqenb.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "wskcklklsrklctkr" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8760EE2-84AD-000C-D642-6A9B9BBF9AB0}\LocalServer32 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8760EE2-84AD-000C-D642-6A9B9BBF9AB0}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f5f66462166f3f6b0fce4a4274820590_NEIKI.exe" f5f66462166f3f6b0fce4a4274820590_NEIKI.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "zttsjrjttklshkhb" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\ = "eezhknxbkvnrtzhj" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\ = "jstjxvqwzbnzsvlt" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\ = "etekqhrrelztnrsr" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "jhzztrhcelnzkswr" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8760EE2-84AD-000C-D642-6A9B9BBF9AB0}\ = "jxtssnqjzcvxhser" f5f66462166f3f6b0fce4a4274820590_NEIKI.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\LocalServer32\ = "C:\\Program Files\\Java\\jdk-1.8\\jre\\revhnlhn.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\LocalServer32\ = "C:\\Program Files\\Java\\jdk-1.8\\chllsvtv.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\LocalServer32\ = "C:\\Program Files\\Microsoft Office\\root\\Office16\\PersonaSpy\\tsbknceh.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\ = "lwretbrrjkbjhxxt" urdvxc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1824 urdvxc.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2240 wrote to memory of 1824 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 85 PID 2240 wrote to memory of 1824 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 85 PID 2240 wrote to memory of 1824 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 85 PID 2240 wrote to memory of 3904 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 86 PID 2240 wrote to memory of 3904 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 86 PID 2240 wrote to memory of 3904 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 86 PID 2240 wrote to memory of 3672 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 88 PID 2240 wrote to memory of 3672 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 88 PID 2240 wrote to memory of 3672 2240 f5f66462166f3f6b0fce4a4274820590_NEIKI.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\f5f66462166f3f6b0fce4a4274820590_NEIKI.exe"C:\Users\Admin\AppData\Local\Temp\f5f66462166f3f6b0fce4a4274820590_NEIKI.exe"1⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /installservice2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1824
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C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /start2⤵
- Executes dropped EXE
- Modifies registry class
PID:3904
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C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /uninstallservice patch:C:\Users\Admin\AppData\Local\Temp\f5f66462166f3f6b0fce4a4274820590_NEIKI.exe2⤵
- Deletes itself
- Executes dropped EXE
- Modifies registry class
PID:3672
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C:\Windows\SysWOW64\urdvxc.exe"C:\Windows\SysWOW64\urdvxc.exe" /service1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
PID:3064
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C:\Windows\SysWOW64\urdvxc.exe"C:\Windows\SysWOW64\urdvxc.exe" /service1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
PID:4724
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
263B
MD58e0789ff750b413c70a9b109432cf0ba
SHA184c429f3b741a44bced2a137ee62254348e89da6
SHA256f37026c18146ffd616868fc2b6b18bd1d4d35d701a99d1eb1e3b0974c01079b1
SHA51236b4cd6cb7854ed594ab3e1918731e2ad76fc3dab376f691518a2fb19fc8d1edd6f512846fbb171123dac0f661444a84c112dad014477fb7f6420dc03700a899
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Filesize
1KB
MD5a8b87b40087637b962dbfc05d2d9d4a2
SHA1468302329cc2bf7d30694d4813cd1269ef2efb7e
SHA256a2d9b95bccd67b11381b384c402d821c21b7dceabeaa5f24c0f9d86df61bb032
SHA5124d5cf1bdc9b333db7c90dc8bba7aaa46003bf6a87e03915710bc970763106da338ac40bad9f5934ce03c77f529c5778e430a6192aa12d7700139e93a58bba002
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Filesize
1KB
MD5bc7c57b483916c6260cf0467bd8f0817
SHA180d1f7095e14da4ba8e73252d998f2979b5038d3
SHA25617199b56ed55902544a9c13f4f263cd0ce15ed1bc63ab1f49df634c732b5a48c
SHA512f2bc75c0fc8b02751db4ff98fe3fe36d9117dd1d748bdf03d78f72a6b7fada03e6832d5123a5c3e9aadf2bf92a266cd76ca9beb3914efc09ccbc99cc24467ced
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Filesize
1KB
MD5395c610fe7a603590149505188755aeb
SHA1c5404592b7560c66ba7543fe1c104ba4382b3eb2
SHA2562c4b57283f5dc22d2e56bb1589064e1a659774bc5f0fcf57d956a4536f36d569
SHA5121e234f054ce3630e23a34c46529ec4c1e5010c9721ba19ea5c4c5d215ee55e5a48f8cf66e925a9467913e0b14557da8c0ec51e8e3624424518ec5cfa08f3fe34
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C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\MCABOUT.HTM
Filesize11KB
MD54c7125f69cf2046a45daeac49cb0019f
SHA1b4b17fbe1091003ed480f40654f22c89c763f01b
SHA2561102b8a9933b2191f1b80bd9bc478f301536216332ddf2986d3ffc792474be3d
SHA512ef255433949b3cd61a4694d2b23bd2a5d6b4a8a8e082fef068ad0c77abc4ba3fb833c1e31bdb9134613d237d7c033fa2647cfe73f06d3ad8de72128a8f323d62
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Filesize
119KB
MD5f5f66462166f3f6b0fce4a4274820590
SHA1c47a90c204413df2c839b57a4dc5596c44ce7dab
SHA2565a23aef35d5eb8e73055bc9b00d99f6116c6ba22b885b66fcb950962ac9f7201
SHA5124d80d827fa0d2b82b7ba73d3499c4ee508ccd6f0b99201e964e6690d5165188bda7e364a784c5d432f617e913b5bbfd9ee77e31b3c0e6f88289c0acf2c5f6c5c