Overview
overview
3Static
static
3api/uc.js
windows7-x64
3api/uc.js
windows10-2004-x64
3api/uc_api_db.js
windows7-x64
3api/uc_api_db.js
windows10-2004-x64
3api/新云软件.url
windows7-x64
1api/新云软件.url
windows10-2004-x64
1iis_rewrit...te.dll
windows7-x64
3iis_rewrit...te.dll
windows10-2004-x64
3iis_rewrit...if.dll
windows7-x64
3iis_rewrit...if.dll
windows10-2004-x64
3imjiqiren.js
windows7-x64
3imjiqiren.js
windows10-2004-x64
3include/db....db.js
windows7-x64
3include/db....db.js
windows10-2004-x64
3include/db....db.js
windows7-x64
3include/db....db.js
windows10-2004-x64
3include/en...ass.js
windows7-x64
3include/en...ass.js
windows10-2004-x64
3include/en...de.ps1
windows7-x64
3include/en...de.ps1
windows10-2004-x64
3include/en...de.ps1
windows7-x64
3include/en...de.ps1
windows10-2004-x64
3include/en...ex.htm
windows7-x64
3include/en...ex.htm
windows10-2004-x64
3include/fu...nc.ps1
windows7-x64
3include/fu...nc.ps1
windows10-2004-x64
3include/fu...unc.js
windows7-x64
3include/fu...unc.js
windows10-2004-x64
3include/fu...unc.js
windows7-x64
3include/fu...unc.js
windows10-2004-x64
3include/fu...unc.js
windows7-x64
3include/fu...unc.js
windows10-2004-x64
3Analysis
-
max time kernel
93s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
15-09-2024 22:51
Static task
static1
Behavioral task
behavioral1
Sample
api/uc.js
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
api/uc.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
api/uc_api_db.js
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
api/uc_api_db.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
api/新云软件.url
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
api/新云软件.url
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
iis_rewrite/Rewrite.dll
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
iis_rewrite/Rewrite.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
iis_rewrite/mtbnotif.dll
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
iis_rewrite/mtbnotif.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
imjiqiren.js
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
imjiqiren.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
include/db/database.db.js
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
include/db/database.db.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
include/db/mysql.db.js
Resource
win7-20240903-en
Behavioral task
behavioral16
Sample
include/db/mysql.db.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
include/encoding/chinese.class.js
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
include/encoding/chinese.class.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
include/encoding/tables/big5-unicode.ps1
Resource
win7-20240708-en
Behavioral task
behavioral20
Sample
include/encoding/tables/big5-unicode.ps1
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
include/encoding/tables/gb-unicode.ps1
Resource
win7-20240903-en
Behavioral task
behavioral22
Sample
include/encoding/tables/gb-unicode.ps1
Resource
win10v2004-20240910-en
Behavioral task
behavioral23
Sample
include/encoding/tables/index.htm
Resource
win7-20240729-en
Behavioral task
behavioral24
Sample
include/encoding/tables/index.htm
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
include/function/global.func.ps1
Resource
win7-20240708-en
Behavioral task
behavioral26
Sample
include/function/global.func.ps1
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
include/function/imjiqiren.func.js
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
include/function/imjiqiren.func.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
include/function/imjiqiren_env.func.js
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
include/function/imjiqiren_env.func.js
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
include/function/sina.func.js
Resource
win7-20240903-en
Behavioral task
behavioral32
Sample
include/function/sina.func.js
Resource
win10v2004-20240802-en
General
-
Target
iis_rewrite/mtbnotif.dll
-
Size
80KB
-
MD5
e75014ef4096b22fbd120398424102a5
-
SHA1
1fa336d3df933ccd70d5d98430219ff51fec8296
-
SHA256
9733873f8b5847bd5f9c5ba133798492313d36a352a975659b305e02a13ca798
-
SHA512
0ff5ff78b95ffa8e925e26a45e8aa306f0aa8d5f18e1998b6b2dd24130adfcd10139fe4d2fa431d766943083c0d10c05584e1ce173ffb784920660e1de8a80f4
-
SSDEEP
1536:/rOLavn+l7DGSBEJonjPTb0QwNIC/1y0++GrKcSaI9o:TOL2n+5hEW/2yC/1Q+GecSaeo
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.
Processes:
regsvr32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Modifies registry class 31 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CLSID\ = "{27C3B8ED-0790-42BD-9AD7-18465E7F7696}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\VersionIndependentProgID\ = "ISAPIRewrite.MetaBaseWatchDog" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\ = "mtbnotif 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ProgID\ = "ISAPIRewrite.MetaBaseWatchDog.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\ = "MetaBaseWatchDog Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\mtbnotif.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\ = "MetaBaseWatchDog Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog.1\CLSID\ = "{27C3B8ED-0790-42BD-9AD7-18465E7F7696}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\TypeLib\ = "{97808F6C-4769-49D5-9553-18AE9C62ACD7}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ISAPIRewrite.MetaBaseWatchDog\CurVer\ = "ISAPIRewrite.MetaBaseWatchDog.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\ = "MetaBaseWatchDog Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{27C3B8ED-0790-42BD-9AD7-18465E7F7696}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\mtbnotif.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{97808F6C-4769-49D5-9553-18AE9C62ACD7}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\iis_rewrite\\" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 640 wrote to memory of 2100 640 regsvr32.exe regsvr32.exe PID 640 wrote to memory of 2100 640 regsvr32.exe regsvr32.exe PID 640 wrote to memory of 2100 640 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\iis_rewrite\mtbnotif.dll1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\iis_rewrite\mtbnotif.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies registry class