Overview
overview
7Static
static
3YoudaoDict...lt.exe
windows10-2004-x64
7$PLUGINSDI...er.exe
windows10-2004-x64
3$PLUGINSDI...st.dll
windows10-2004-x64
3$PLUGINSDI...ng.dll
windows10-2004-x64
3$PLUGINSDI...ar.dll
windows10-2004-x64
3$PLUGINSDI...oc.dll
windows10-2004-x64
3$PLUGINSDI...tn.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...on.exe
windows10-2004-x64
$PLUGINSDI...er.exe
windows10-2004-x64
3$PLUGINSDI...ar.exe
windows10-2004-x64
3$PLUGINSDIR/child.rtf
windows10-2004-x64
18.10.0.0/CrashRpt.dll
windows10-2004-x64
38.10.0.0/Monitor.exe
windows10-2004-x64
38.10.0.0/T...32.dll
windows10-2004-x64
38.10.0.0/T...64.dll
windows10-2004-x64
18.10.0.0/W...32.dll
windows10-2004-x64
38.10.0.0/W...64.dll
windows10-2004-x64
18.10.0.0/XDLL.dll
windows10-2004-x64
38.10.0.0/Y...ct.dll
windows10-2004-x64
38.10.0.0/Y...t7.dll
windows10-2004-x64
38.10.0.0/Y...st.exe
windows10-2004-x64
38.10.0.0/Y...er.exe
windows10-2004-x64
38.10.0.0/Y...gin.js
windows10-2004-x64
3$PLUGINSDI...se.rtf
windows10-2004-x64
1$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...ow.dll
windows10-2004-x64
3$PLUGINSDI...cy.rtf
windows10-2004-x64
1$_67_/Inst...on.exe
windows10-2004-x64
3$_67_/Youd...er.exe
windows10-2004-x64
3uninst.exe
windows10-2004-x64
7Resubmissions
05-11-2024 09:43
241105-lpwmlsydrh 705-11-2024 09:39
241105-lm15bazbnl 705-11-2024 09:32
241105-lh19hsxrbx 7Analysis
-
max time kernel
136s -
max time network
207s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-11-2024 09:39
Behavioral task
behavioral1
Sample
YoudaoDict_webdict_default.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/InstallHelper.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LockedList.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/OP_Logging.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/OP_ProgressBar.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/OP_WndProc.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/SkinBtn.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/YoudaoDictIcon.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/YoudaoDictInstaller.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/YoudaoToolbar.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/child.rtf
Resource
win10v2004-20241007-en
Behavioral task
behavioral14
Sample
8.10.0.0/CrashRpt.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral15
Sample
8.10.0.0/Monitor.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral16
Sample
8.10.0.0/TextExtractorImpl32.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral17
Sample
8.10.0.0/TextExtractorImpl64.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral18
Sample
8.10.0.0/WordStrokeHelper32.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral19
Sample
8.10.0.0/WordStrokeHelper64.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral20
Sample
8.10.0.0/XDLL.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral21
Sample
8.10.0.0/YodaoDict.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral22
Sample
8.10.0.0/YodaoDict7.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral23
Sample
8.10.0.0/YoudaoCookieAssist.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral24
Sample
8.10.0.0/YoudaoDictHelper.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral25
Sample
8.10.0.0/YoudaoDictPlugin.js
Resource
win10v2004-20241007-en
Behavioral task
behavioral26
Sample
$PLUGINSDIR/license.rtf
Resource
win10v2004-20241007-en
Behavioral task
behavioral27
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral28
Sample
$PLUGINSDIR/nsisSlideshow.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral29
Sample
$PLUGINSDIR/privacy.rtf
Resource
win10v2004-20241007-en
Behavioral task
behavioral30
Sample
$_67_/InstallDaemon.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral31
Sample
$_67_/YoudaoDictInstaller.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral32
Sample
uninst.exe
Resource
win10v2004-20241007-en
General
-
Target
$PLUGINSDIR/OP_ProgressBar.dll
-
Size
35KB
-
MD5
95ecdbdf41e9450e68895cd8a51ac3b5
-
SHA1
21a80e466f1bc0d7190d8c9c12f9d90476a9c2b3
-
SHA256
75b9c807487764b4196eee5310ed096f74dfe585ed8318e0dff0ace2ae054e26
-
SHA512
26a8b8fc05b9ca59ff32bf151f7860c609e8b8efc4aabc12801286378cd05022cceb9fbfb2cd814230eedeb1db0753da5368fb9f91b0d3b17187f520880cf884
-
SSDEEP
768:fQS0rrWiua1NVwfchugqGnTEDzWa/Xvxr5A4t:fQS0r6e8sBVnar2w
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 2224 1412 WerFault.exe 84 -
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 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 392 wrote to memory of 1412 392 rundll32.exe 84 PID 392 wrote to memory of 1412 392 rundll32.exe 84 PID 392 wrote to memory of 1412 392 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\OP_ProgressBar.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:392 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\OP_ProgressBar.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1412 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 6003⤵
- Program crash
PID:2224
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1412 -ip 14121⤵PID:1964