Overview
overview
10Static
static
374fc686e77...e9.exe
windows7-x64
374fc686e77...e9.exe
windows10-2004-x64
10$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
10$PLUGINSDI...ll.dll
windows7-x64
3$PLUGINSDI...ll.dll
windows10-2004-x64
10$PLUGINSDI...AC.dll
windows7-x64
1$PLUGINSDI...AC.dll
windows10-2004-x64
10$PLUGINSDI....0.dll
windows7-x64
1$PLUGINSDI....0.dll
windows10-2004-x64
10$PLUGINSDI...VC.dll
windows7-x64
1$PLUGINSDI...VC.dll
windows10-2004-x64
10$PLUGINSDI...np.dll
windows7-x64
3$PLUGINSDI...np.dll
windows10-2004-x64
10$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
10$PLUGINSDI...us.dll
windows7-x64
1$PLUGINSDI...us.dll
windows10-2004-x64
10$PLUGINSDI...ll.dll
windows7-x64
1$PLUGINSDI...ll.dll
windows10-2004-x64
10$PLUGINSDI...CE.dll
windows7-x64
1$PLUGINSDI...CE.dll
windows10-2004-x64
10$PLUGINSDI...el.dll
windows7-x64
1$PLUGINSDI...el.dll
windows10-2004-x64
10$PLUGINSDI...ad.dll
windows7-x64
3$PLUGINSDI...ad.dll
windows10-2004-x64
10$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
10$PLUGINSDIR/Live.dll
windows7-x64
1$PLUGINSDIR/Live.dll
windows10-2004-x64
10$PLUGINSDI...er.exe
windows7-x64
1$PLUGINSDI...er.exe
windows10-2004-x64
10Analysis
-
max time kernel
136s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 16:37
Static task
static1
Behavioral task
behavioral1
Sample
74fc686e77c52a885e8dbbef7ba8f6e9.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
74fc686e77c52a885e8dbbef7ba8f6e9.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/BindDLL.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/BindDLL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/CommonFuncDll.dll
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/CommonFuncDll.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/CoreAAC.dll
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/CoreAAC.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/CoreAVC.2.0.0.0.dll
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/CoreAVC.2.0.0.0.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/CoreAVC.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/CoreAVC.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/FWUpnp.dll
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/FWUpnp.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win7-20231215-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/FindProcDLL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/GdiPlus.dll
Resource
win7-20231129-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/GdiPlus.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/GetCommentsInfoDll.dll
Resource
win7-20231215-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/GetCommentsInfoDll.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/HTTP_ASF_SOURCE.dll
Resource
win7-20231215-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/HTTP_ASF_SOURCE.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/Hookkernel.dll
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/Hookkernel.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral25
Sample
$PLUGINSDIR/InetLoad.dll
Resource
win7-20231215-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/InetLoad.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral27
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win7-20231215-en
Behavioral task
behavioral28
Sample
$PLUGINSDIR/KillProcDLL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral29
Sample
$PLUGINSDIR/Live.dll
Resource
win7-20231129-en
Behavioral task
behavioral30
Sample
$PLUGINSDIR/Live.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral31
Sample
$PLUGINSDIR/Loader.exe
Resource
win7-20231215-en
General
-
Target
$PLUGINSDIR/CoreAAC.dll
-
Size
312KB
-
MD5
b0ffac757be8d6cc41e1131eb2b0d959
-
SHA1
0e41733a050bc2ed53fda6337d6501b9942317c2
-
SHA256
04bf38bbd9cb8287582f9a2fb8b06e0ab30f06f676a93f4a56656b576f10e597
-
SHA512
356ecf4902f767f74670e5fcd57f26fb8a43710d0a2b3a995877e6f265119b2f091c6e5e3457dfa1767c6e4043afc470cc7090f43dd997b27c0e94c7e102bee3
-
SSDEEP
6144:+yTbEUUmDAh189YEqbBpkJzJTba96sZTiaJfOMBfcESToVk:bxUmDAn4C9GBJba96sZTf9Oy+Wk
Malware Config
Signatures
-
Modifies registry class 19 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BBFC1A2A-D3A2-4610-847D-26592022F86E}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BBFC1A2A-D3A2-4610-847D-26592022F86E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAAC.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4665E44B-8B9A-4515-A086-E94ECE374608} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4665E44B-8B9A-4515-A086-E94ECE374608}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAAC.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\CLSID = "{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC} regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\FilterData = 020000000000800002000000000000003070693300000000000000000200000000000000000000003074793300000000700000008000000031747933000000007000000090000000317069330800000000000000010000000000000000000000307479330000000070000000a00000006175647300001000800000aa00389b71ff00000000001000800000aa00389b714d50344100001000800000aa00389b710100000000001000800000aa00389b71 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4665E44B-8B9A-4515-A086-E94ECE374608}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4665E44B-8B9A-4515-A086-E94ECE374608}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\CoreAAC.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BBFC1A2A-D3A2-4610-847D-26592022F86E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BBFC1A2A-D3A2-4610-847D-26592022F86E}\ = "CoreAAC Audio Decoder Info" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BBFC1A2A-D3A2-4610-847D-26592022F86E}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\ = "CoreAAC Audio Decoder" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4665E44B-8B9A-4515-A086-E94ECE374608}\ = "CoreAAC Audio Decoder About" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6AC7C19E-8CA0-4E3D-9A9F-2881DE29E0AC}\FriendlyName = "CoreAAC Audio Decoder" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 2584 wrote to memory of 3500 2584 regsvr32.exe regsvr32.exe PID 2584 wrote to memory of 3500 2584 regsvr32.exe regsvr32.exe PID 2584 wrote to memory of 3500 2584 regsvr32.exe regsvr32.exe