Overview
overview
7Static
static
52de691adb4...2d.exe
windows7-x64
72de691adb4...2d.exe
windows10-2004-x64
7$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows7-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3kuaibo.exe
windows7-x64
7kuaibo.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3Codecs/CoreAVC.dll
windows7-x64
5Codecs/CoreAVC.dll
windows10-2004-x64
5Codecs/FLV...er.dll
windows7-x64
3Codecs/FLV...er.dll
windows10-2004-x64
3Codecs/MP4...er.dll
windows7-x64
3Codecs/MP4...er.dll
windows10-2004-x64
3Codecs/Mat...er.dll
windows7-x64
3Codecs/Mat...er.dll
windows10-2004-x64
3Codecs/Mpa...er.dll
windows7-x64
3Codecs/Mpa...er.dll
windows10-2004-x64
3Codecs/QMV...er.dll
windows7-x64
3Codecs/QMV...er.dll
windows10-2004-x64
3Codecs/Qmv...er.dll
windows7-x64
3Codecs/Qmv...er.dll
windows10-2004-x64
3Codecs/Qvo...ec.dll
windows7-x64
3Codecs/Qvo...ec.dll
windows10-2004-x64
3Codecs/QvodSound.dll
windows7-x64
3Codecs/QvodSound.dll
windows10-2004-x64
3Codecs/QvodSource.dll
windows7-x64
3Codecs/QvodSource.dll
windows10-2004-x64
3Analysis
-
max time kernel
93s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-11-2024 00:10
Behavioral task
behavioral1
Sample
2de691adb4984c996a0de98c998dc968d80244a61415da63a54744ce434fb12d.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
2de691adb4984c996a0de98c998dc968d80244a61415da63a54744ce434fb12d.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsTools.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsTools.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
kuaibo.exe
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral8
Sample
kuaibo.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral10
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
$PLUGINSDIR/System.dll
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral12
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
Codecs/CoreAVC.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral14
Sample
Codecs/CoreAVC.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
Codecs/FLVSplitter.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral16
Sample
Codecs/FLVSplitter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral17
Sample
Codecs/MP4Splitter.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral18
Sample
Codecs/MP4Splitter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral19
Sample
Codecs/MatroskaSplitter.dll
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral20
Sample
Codecs/MatroskaSplitter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral21
Sample
Codecs/MpaSplitter.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral22
Sample
Codecs/MpaSplitter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral23
Sample
Codecs/QMVSplitterFilter.dll
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral24
Sample
Codecs/QMVSplitterFilter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral25
Sample
Codecs/QmvbSplitter.dll
Resource
win7-20241023-en
windows7-x64
Behavioral task
behavioral26
Sample
Codecs/QmvbSplitter.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral27
Sample
Codecs/QvodMpeg2Dec.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral28
Sample
Codecs/QvodMpeg2Dec.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral29
Sample
Codecs/QvodSound.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral30
Sample
Codecs/QvodSound.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral31
Sample
Codecs/QvodSource.dll
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral32
Sample
Codecs/QvodSource.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
General
-
Target
Codecs/MP4Splitter.dll
-
Size
483KB
-
MD5
73170a2a2930a53baff2c57e684cff03
-
SHA1
b95bcf14ea078377a4fab383ba580e3f7028067d
-
SHA256
e1b660d6d1ff8ec16a91a4df11f95ae17618a23bf451ae0b4f77d6354f433735
-
SHA512
e475e42b7b0da4d89beab0895b87acf116a264fa63ce901f98226230d18a477a9c8ff7d223aeb68b52d85bd0b1e61a4418ee2daf6b94971008f3f56e53839af5
-
SSDEEP
6144:7GPdzS5R8cQxAdYKitPDo+9WEkSY38WaY81WzUCJaTB6qqDmjsKkQ5uSBlEk:q2R8cRdYKitPM+9x+8YPaTNqCj3t7
Malware Config
Signatures
-
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Modifies registry class 44 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\ = "MPC - MPEG4 Video Splitter" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\3 = "4,4,,736b6970" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\5 = "3,3,,000001" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\ = "MPC - MP4 Splitter" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\CLSID = "{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}" regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\FilterData = 02000000000060000200000000000000307069330000000000000000020000000000000000000000307479330000000060000000700000003174793300000000600000008000000031706933080000000000000000000000000000000000000083eb36e44f52ce119f530020af0ba770da2ae20815b7ed459d207b87750301d400000000000000000000000000000000 regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\FilterData = 02000000000060000000000000000000 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\2 = "4,4,,6d646174" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\4 = "4,12,ffffffff00000000ffffffff,77696465027fe3706d646174" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCC052E-BDEE-408A-BEA7-90914EF2964B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\ = "MPC - MP4 Source" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\FriendlyName = "MPC - MP4 Source" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\FriendlyName = "MPC - MPEG4 Video Splitter" regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\FilterData = 02000000000060000000000000000000 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\Source Filter = "{E436EBB5-524F-11CE-9F53-0020AF0BA770}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\ = "MPC - MPEG4 Video Source" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\1 = "4,4,,6d6f6f76" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\MP4Splitter.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{3CCC052E-BDEE-408A-BEA7-90914EF2964B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{08E22ADA-B715-45ED-9D20-7B87750301D4}\0 = "4,4,,66747970" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\MP4Splitter.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\MP4Splitter.dll" regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\FilterData = 02000000000060000200000000000000307069330000000000000000020000000000000000000000307479330000000060000000700000003174793300000000600000008000000031706933080000000000000000000000000000000000000083eb36e44f52ce119f530020af0ba770da2ae20815b7ed459d207b87750301d400000000000000000000000000000000 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\CLSID = "{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\FriendlyName = "MPC - MPEG4 Video Source" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\CLSID = "{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E2B98EEA-EE55-4E9B-A8C1-6E5288DF785A}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\CLSID = "{3CCC052E-BDEE-408A-BEA7-90914EF2964B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCC052E-BDEE-408A-BEA7-90914EF2964B}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\MP4Splitter.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{61F47056-E400-43D3-AF1E-AB7DFFD4C4AD}\FriendlyName = "MPC - MP4 Splitter" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{D3D9D58B-45B5-48AB-B199-B8C40560AEC7} regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1152 wrote to memory of 3032 1152 regsvr32.exe 84 PID 1152 wrote to memory of 3032 1152 regsvr32.exe 84 PID 1152 wrote to memory of 3032 1152 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\Codecs\MP4Splitter.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\Codecs\MP4Splitter.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3032
-