Overview
overview
3Static
static
happytime-...er.exe
windows10-2004-x64
1happytime-...er.exe
windows10-2004-x64
1happytime-...58.dll
windows10-2004-x64
3happytime-...58.dll
windows10-2004-x64
1happytime-...56.dll
windows10-2004-x64
3happytime-..._1.dll
windows10-2004-x64
3happytime-..._1.dll
windows10-2004-x64
1happytime-...40.dll
windows10-2004-x64
3happytime-...rt.dll
windows10-2004-x64
3happytime-...-3.dll
windows10-2004-x64
1happytime-...-5.dll
windows10-2004-x64
3happytime-...al.pdf
windows10-2004-x64
1happytime-...40.dll
windows10-2004-x64
3happytime-...pi.dll
windows10-2004-x64
3happytime-...n.html
windows10-2004-x64
1happytime-..._1.dll
windows10-2004-x64
3happytime-..._1.dll
windows10-2004-x64
1happytime-...me.bat
windows10-2004-x64
1happytime-...al.pdf
windows10-2004-x64
1happytime-...40.dll
windows10-2004-x64
3happytime-...pi.dll
windows10-2004-x64
3Analysis
-
max time kernel
112s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-01-2023 02:53
Static task
static1
Behavioral task
behavioral1
Sample
happytime-onvif-server/OnvifServer.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral2
Sample
happytime-onvif-server/happytime-rtsp-server/RtspServer.exe
Resource
win10v2004-20220901-en
Behavioral task
behavioral3
Sample
happytime-onvif-server/happytime-rtsp-server/avcodec-58.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral4
Sample
happytime-onvif-server/happytime-rtsp-server/avformat-58.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral5
Sample
happytime-onvif-server/happytime-rtsp-server/avutil-56.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral6
Sample
happytime-onvif-server/happytime-rtsp-server/libcrypto-1_1.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral7
Sample
happytime-onvif-server/happytime-rtsp-server/libssl-1_1.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral8
Sample
happytime-onvif-server/happytime-rtsp-server/msvcp140.dll
Resource
win10v2004-20220901-en
Behavioral task
behavioral9
Sample
happytime-onvif-server/happytime-rtsp-server/srt.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral10
Sample
happytime-onvif-server/happytime-rtsp-server/swresample-3.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral11
Sample
happytime-onvif-server/happytime-rtsp-server/swscale-5.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral12
Sample
happytime-onvif-server/happytime-rtsp-server/user manual.pdf
Resource
win10v2004-20221111-en
Behavioral task
behavioral13
Sample
happytime-onvif-server/happytime-rtsp-server/vcruntime140.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral14
Sample
happytime-onvif-server/happytime-rtsp-server/zlibwapi.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral15
Sample
happytime-onvif-server/html/main.html
Resource
win10v2004-20220901-en
Behavioral task
behavioral16
Sample
happytime-onvif-server/libcrypto-1_1.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral17
Sample
happytime-onvif-server/libssl-1_1.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral18
Sample
happytime-onvif-server/runme.bat
Resource
win10v2004-20220812-en
Behavioral task
behavioral19
Sample
happytime-onvif-server/user manual.pdf
Resource
win10v2004-20220812-en
Behavioral task
behavioral20
Sample
happytime-onvif-server/vcruntime140.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral21
Sample
happytime-onvif-server/zlibwapi.dll
Resource
win10v2004-20220812-en
General
-
Target
happytime-onvif-server/happytime-rtsp-server/swresample-3.dll
-
Size
316KB
-
MD5
4f3bd5b9c1b10a966908a1d1b0db7411
-
SHA1
6c31e74d3cb2abb75f2ecee933c8544c484761f5
-
SHA256
660e5963d0be63bdcea50e959c23fd93b8c25d582ff49e5af9e0fce84294dfe9
-
SHA512
77b8357a249deba39fbf94a94c00d5f3e3ae861d58411c25278f144f3022ddca3c27bb21d6a6a89a4239dc89f2956b9a5083346a286a5469f3863bdb05260bd5
-
SSDEEP
6144:NNfWE1yQKJdyKqIi3AhrX49fCWM1xiWs7hjy+NY9S+yCod7yHVWjtEjPFpHEP/nN:NNfWE1yQKJdyKqIi3AhrX49fsxuu89C0
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 748 wrote to memory of 1780 748 rundll32.exe rundll32.exe PID 748 wrote to memory of 1780 748 rundll32.exe rundll32.exe PID 748 wrote to memory of 1780 748 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\happytime-onvif-server\happytime-rtsp-server\swresample-3.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\happytime-onvif-server\happytime-rtsp-server\swresample-3.dll,#12⤵PID:1780