Overview
overview
10Static
static
1APT 37 Pre...��.hwp
windows7-x64
3APT 37 Pre...��.hwp
windows10-2004-x64
3APT 37 Pre...ng.rar
windows7-x64
3APT 37 Pre...ng.rar
windows10-2004-x64
3BookBriefing.chm
windows7-x64
10BookBriefing.chm
windows10-2004-x64
10APT 37 Pre...26.rar
windows7-x64
3APT 37 Pre...26.rar
windows10-2004-x64
3Password.chm
windows7-x64
10Password.chm
windows10-2004-x64
10후원내역서.pdf
windows7-x64
1후원내역서.pdf
windows10-2004-x64
1APT 37 Pre...CV.rar
windows7-x64
3APT 37 Pre...CV.rar
windows10-2004-x64
3APT 37 Pre...05.rar
windows7-x64
3APT 37 Pre...05.rar
windows10-2004-x64
3APT 37 Pre...ls.rar
windows7-x64
3APT 37 Pre...ls.rar
windows10-2004-x64
3APT 37 Pre...ts.rar
windows7-x64
3APT 37 Pre...ts.rar
windows10-2004-x64
3APT 37 Pre...et.rar
windows7-x64
3APT 37 Pre...et.rar
windows10-2004-x64
3APT 37 Pre...te.rar
windows7-x64
3APT 37 Pre...te.rar
windows10-2004-x64
3APT 37 Pre...��.rar
windows7-x64
3APT 37 Pre...��.rar
windows10-2004-x64
3APT 37 Pre...ce.rar
windows7-x64
3APT 37 Pre...ce.rar
windows10-2004-x64
3APT 37 Pre...nc.rar
windows7-x64
3APT 37 Pre...nc.rar
windows10-2004-x64
3APT 37 Pre...��.hwp
windows7-x64
3APT 37 Pre...��.hwp
windows10-2004-x64
3Analysis
-
max time kernel
139s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
21-03-2023 23:22
Static task
static1
Behavioral task
behavioral1
Sample
APT 37 Previous Commits 2/(227183-F)_사업진행상태보고서.hwp
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
APT 37 Previous Commits 2/(227183-F)_사업진행상태보고서.hwp
Resource
win10v2004-20230221-en
Behavioral task
behavioral3
Sample
APT 37 Previous Commits 2/BookBriefing.rar
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
APT 37 Previous Commits 2/BookBriefing.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
BookBriefing.chm
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
BookBriefing.chm
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
APT 37 Previous Commits 2/CR_20230126.rar
Resource
win7-20230220-en
Behavioral task
behavioral8
Sample
APT 37 Previous Commits 2/CR_20230126.rar
Resource
win10v2004-20230221-en
Behavioral task
behavioral9
Sample
Password.chm
Resource
win7-20230220-en
Behavioral task
behavioral10
Sample
Password.chm
Resource
win10v2004-20230220-en
Behavioral task
behavioral11
Sample
후원내역서.pdf
Resource
win7-20230220-en
Behavioral task
behavioral12
Sample
후원내역서.pdf
Resource
win10v2004-20230220-en
Behavioral task
behavioral13
Sample
APT 37 Previous Commits 2/CV.rar
Resource
win7-20230220-en
Behavioral task
behavioral14
Sample
APT 37 Previous Commits 2/CV.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral15
Sample
APT 37 Previous Commits 2/DBLife-2022_08_05.rar
Resource
win7-20230220-en
Behavioral task
behavioral16
Sample
APT 37 Previous Commits 2/DBLife-2022_08_05.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral17
Sample
APT 37 Previous Commits 2/Details.rar
Resource
win7-20230220-en
Behavioral task
behavioral18
Sample
APT 37 Previous Commits 2/Details.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral19
Sample
APT 37 Previous Commits 2/Documents.rar
Resource
win7-20230220-en
Behavioral task
behavioral20
Sample
APT 37 Previous Commits 2/Documents.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral21
Sample
APT 37 Previous Commits 2/DriverSet.rar
Resource
win7-20230220-en
Behavioral task
behavioral22
Sample
APT 37 Previous Commits 2/DriverSet.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral23
Sample
APT 37 Previous Commits 2/Estimate.rar
Resource
win7-20230220-en
Behavioral task
behavioral24
Sample
APT 37 Previous Commits 2/Estimate.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral25
Sample
APT 37 Previous Commits 2/H2O 견적서.rar
Resource
win7-20230220-en
Behavioral task
behavioral26
Sample
APT 37 Previous Commits 2/H2O 견적서.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral27
Sample
APT 37 Previous Commits 2/Introduce.rar
Resource
win7-20230220-en
Behavioral task
behavioral28
Sample
APT 37 Previous Commits 2/Introduce.rar
Resource
win10v2004-20230220-en
Behavioral task
behavioral29
Sample
APT 37 Previous Commits 2/Invoice_1514_from_Evo3_Marketing_Inc.rar
Resource
win7-20230220-en
Behavioral task
behavioral30
Sample
APT 37 Previous Commits 2/Invoice_1514_from_Evo3_Marketing_Inc.rar
Resource
win10v2004-20230221-en
Behavioral task
behavioral31
Sample
APT 37 Previous Commits 2/K-MOOC 수기 공모 이벤트.hwp
Resource
win7-20230220-en
Behavioral task
behavioral32
Sample
APT 37 Previous Commits 2/K-MOOC 수기 공모 이벤트.hwp
Resource
win10v2004-20230220-en
General
-
Target
APT 37 Previous Commits 2/Introduce.rar
-
Size
26KB
-
MD5
cf012ca48b5e1f6743be7e0d10cdfd2e
-
SHA1
aaf431e80fea23320753f92c86c60aa46f880a6d
-
SHA256
0bfcb60146b8ef0acfe54299df86a6cd68c31c3e62947e0eb7b83cbd90b71cb3
-
SHA512
790b16dc27463e07b67b9bdc27aa75992e28ee7804529ba4e9fe418a1c553bb026cec5521fd0318e7c1147d6477bf988d0e568e5de1f07d1c9506b52bd2ca5f4
-
SSDEEP
768:HzET+O3LcrdImnhWzXdjJCOC9mBw91WPy:HzEBwpHqJymG91yy
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1764 vlc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1764 vlc.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1764 vlc.exe 1764 vlc.exe 1764 vlc.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1764 vlc.exe 1764 vlc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1764 vlc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 824 wrote to memory of 1104 824 cmd.exe 29 PID 824 wrote to memory of 1104 824 cmd.exe 29 PID 824 wrote to memory of 1104 824 cmd.exe 29 PID 1104 wrote to memory of 1764 1104 rundll32.exe 30 PID 1104 wrote to memory of 1764 1104 rundll32.exe 30 PID 1104 wrote to memory of 1764 1104 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 2\Introduce.rar"1⤵
- Suspicious use of WriteProcessMemory
PID:824 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 2\Introduce.rar2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 2\Introduce.rar"3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1764
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