Overview
overview
10Static
static
10Korepi/Korepi.exe
windows10-2004-x64
10Korepi/cef.js
windows10-2004-x64
1Korepi/cef...ent.js
windows10-2004-x64
1Korepi/cef...ent.js
windows10-2004-x64
1Korepi/cef...ons.js
windows10-2004-x64
1Korepi/chrome_elf.dll
windows10-2004-x64
3Korepi/d3d...47.dll
windows10-2004-x64
3Korepi/dev...ces.js
windows10-2004-x64
1Korepi/dll...lf.dll
windows10-2004-x64
3Korepi/dll...47.dll
windows10-2004-x64
3Korepi/dll/libEGL.dll
windows10-2004-x64
1Korepi/dll...v2.dll
windows10-2004-x64
3Korepi/dll/libcef.dll
windows10-2004-x64
1Korepi/ffmpeg.dll
windows10-2004-x64
1Korepi/libEGL.dll
windows10-2004-x64
1Korepi/libGLESv2.dll
windows10-2004-x64
3Korepi/libcef.dll
windows10-2004-x64
1Korepi/nat...lob.js
windows10-2004-x64
1Korepi/vgrl.dll
windows10-2004-x64
1Korepi/vivoxsdk.dll
windows10-2004-x64
1Analysis
-
max time kernel
134s -
max time network
176s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
09-02-2024 08:09
Behavioral task
behavioral1
Sample
Korepi/Korepi.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
Korepi/cef.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
Korepi/cef_100_percent.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral4
Sample
Korepi/cef_200_percent.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
Korepi/cef_extensions.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral6
Sample
Korepi/chrome_elf.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
Korepi/d3dcompiler_47.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral8
Sample
Korepi/devtools_resources.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
Korepi/dll/chrome_elf.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral10
Sample
Korepi/dll/d3dcompiler_47.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
Korepi/dll/libEGL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral12
Sample
Korepi/dll/libGLESv2.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
Korepi/dll/libcef.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral14
Sample
Korepi/ffmpeg.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral15
Sample
Korepi/libEGL.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral16
Sample
Korepi/libGLESv2.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral17
Sample
Korepi/libcef.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral18
Sample
Korepi/natives_blob.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
Korepi/vgrl.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral20
Sample
Korepi/vivoxsdk.dll
Resource
win10v2004-20231215-en
General
-
Target
Korepi/dll/libGLESv2.dll
-
Size
4.5MB
-
MD5
c1649e692c3ad2286f00ea3d0c308b39
-
SHA1
de4eea121c46b5c78e7f00f982dd3b451cad857f
-
SHA256
873ef5948a0913d4487dab8ccedd3d17beff86201a0d48b111b1183772ef1bc9
-
SHA512
ab8fdd87765763904c7d52c71023fede5f5692f38380789ea4d90c4ff7c88b8eb59fdac471a15d399a271280ca470f2f224108495710d9922a8cfb72be11b05e
-
SSDEEP
98304:2UOQD4cLcczq0nTVrt1wVzkRs1vQznqzp:2YDnq0nTVoWslj
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 1860 1932 WerFault.exe 79 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4556 wrote to memory of 1932 4556 rundll32.exe 79 PID 4556 wrote to memory of 1932 4556 rundll32.exe 79 PID 4556 wrote to memory of 1932 4556 rundll32.exe 79
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Korepi\dll\libGLESv2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Korepi\dll\libGLESv2.dll,#12⤵PID:1932
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 7003⤵
- Program crash
PID:1860
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1932 -ip 19321⤵PID:4832