Overview
overview
7Static
static
3YoudaoDict_crsky.exe
windows7-x64
7YoudaoDict_crsky.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
3Acrobat2Dict.dll
windows7-x64
3Acrobat2Dict.dll
windows10-2004-x64
3CrashRpt.dll
windows7-x64
3CrashRpt.dll
windows10-2004-x64
3InstallDaemon.exe
windows7-x64
3InstallDaemon.exe
windows10-2004-x64
3Monitor.exe
windows7-x64
3Monitor.exe
windows10-2004-x64
3RunDict.exe
windows7-x64
7RunDict.exe
windows10-2004-x64
7TextExtrac...32.dll
windows7-x64
3TextExtrac...32.dll
windows10-2004-x64
3TextExtrac...64.dll
windows7-x64
1TextExtrac...64.dll
windows10-2004-x64
1WordBook.exe
windows7-x64
3WordBook.exe
windows10-2004-x64
3WordStroke...32.dll
windows7-x64
3WordStroke...32.dll
windows10-2004-x64
3WordStroke...64.dll
windows7-x64
1WordStroke...64.dll
windows10-2004-x64
1XDLL.dll
windows7-x64
3XDLL.dll
windows10-2004-x64
3background.html
windows7-x64
3background.html
windows10-2004-x64
3lookup.js
windows7-x64
3lookup.js
windows10-2004-x64
3Analysis
-
max time kernel
15s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
26/08/2024, 05:49
Static task
static1
Behavioral task
behavioral1
Sample
YoudaoDict_crsky.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
YoudaoDict_crsky.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
Acrobat2Dict.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
Acrobat2Dict.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
CrashRpt.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
CrashRpt.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
InstallDaemon.exe
Resource
win7-20240729-en
Behavioral task
behavioral12
Sample
InstallDaemon.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
Monitor.exe
Resource
win7-20240704-en
Behavioral task
behavioral14
Sample
Monitor.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
RunDict.exe
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
RunDict.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
TextExtractorImpl32.dll
Resource
win7-20240705-en
Behavioral task
behavioral18
Sample
TextExtractorImpl32.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
TextExtractorImpl64.dll
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
TextExtractorImpl64.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
WordBook.exe
Resource
win7-20240708-en
Behavioral task
behavioral22
Sample
WordBook.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
WordStrokeHelper32.dll
Resource
win7-20240729-en
Behavioral task
behavioral24
Sample
WordStrokeHelper32.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
WordStrokeHelper64.dll
Resource
win7-20240729-en
Behavioral task
behavioral26
Sample
WordStrokeHelper64.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
XDLL.dll
Resource
win7-20240705-en
Behavioral task
behavioral28
Sample
XDLL.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
background.html
Resource
win7-20240708-en
Behavioral task
behavioral30
Sample
background.html
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
lookup.js
Resource
win7-20240708-en
Behavioral task
behavioral32
Sample
lookup.js
Resource
win10v2004-20240802-en
General
-
Target
WordStrokeHelper32.dll
-
Size
61KB
-
MD5
ebafe023691d9c4690996a888019b1c3
-
SHA1
d567b8614f252efc4dd129b825b73f9099e4f4d9
-
SHA256
a86bc7a01504991bb18a2410a4f21c0c4106f16a8d4a9652876d22e88f8543fc
-
SHA512
e745aef953e92b6ae3223880cd0fdccba5e186f6c98605f9850e0bacb276571bd8d15ffc92a4a3d0a029e1256dec5e68f86a36efcd304b1d43847666d00703b5
-
SSDEEP
768:2iDc9QH0zkuqVGg2WDW4N7Z507JtVt9FLWRbC2U:2zir2wWm507htvaBC2U
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 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30 PID 2232 wrote to memory of 2248 2232 rundll32.exe 30
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\WordStrokeHelper32.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\WordStrokeHelper32.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2248
-