Overview
overview
10Static
static
10Challenge_...m.docx
windows7-x64
4Challenge_...1.docx
windows7-x64
4Challenge_...y.docx
windows7-x64
4Challenge_...1.docx
windows7-x64
4tools/numb...ing.py
windows7-x64
3oledump.py
windows7-x64
3plugin_biff.py
windows7-x64
3plugin_clsid.py
windows7-x64
3plugin_dridex.py
windows7-x64
3plugin_hifo.py
windows7-x64
3plugin_htt...ics.py
windows7-x64
3plugin_jumplist.py
windows7-x64
3plugin_linear.py
windows7-x64
3plugin_msg.py
windows7-x64
3plugin_msg_summary.py
windows7-x64
3plugin_msi.py
windows7-x64
3plugin_off...pto.py
windows7-x64
3plugin_ppt.py
windows7-x64
3plugin_str_sub.py
windows7-x64
3plugin_stream_o.py
windows7-x64
3plugin_str...ple.py
windows7-x64
3plugin_vba.py
windows7-x64
3plugin_vba_dco.py
windows7-x64
3plugin_vba...nes.py
windows7-x64
3plugin_vba_summary.py
windows7-x64
3plugin_vbaproject.py
windows7-x64
3plugin_version_vba.py
windows7-x64
3tools/re-search.py
windows7-x64
3tools/reextra.py
windows7-x64
3tools/reextra.pyc
windows7-x64
3tools/xmldump.py
windows7-x64
3tools/zipdump.py
windows7-x64
3Analysis
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max time kernel
299s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
26-03-2023 04:40
Static task
static1
Behavioral task
behavioral1
Sample
Challenge_FIles/Employee_W2_Form.docx
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Challenge_FIles/Employees_Contact_Audit_Oct_2021.docx
Resource
win7-20230220-en
Behavioral task
behavioral3
Sample
Challenge_FIles/Work_From_Home_Survey.docx
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
Challenge_FIles/income_tax_and_benefit_return_2021.docx
Resource
win7-20230220-en
Behavioral task
behavioral5
Sample
tools/numbers-to-string.py
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
oledump.py
Resource
win7-20230220-en
Behavioral task
behavioral7
Sample
plugin_biff.py
Resource
win7-20230220-en
Behavioral task
behavioral8
Sample
plugin_clsid.py
Resource
win7-20230220-en
Behavioral task
behavioral9
Sample
plugin_dridex.py
Resource
win7-20230220-en
Behavioral task
behavioral10
Sample
plugin_hifo.py
Resource
win7-20230220-en
Behavioral task
behavioral11
Sample
plugin_http_heuristics.py
Resource
win7-20230220-en
Behavioral task
behavioral12
Sample
plugin_jumplist.py
Resource
win7-20230220-en
Behavioral task
behavioral13
Sample
plugin_linear.py
Resource
win7-20230220-en
Behavioral task
behavioral14
Sample
plugin_msg.py
Resource
win7-20230220-en
Behavioral task
behavioral15
Sample
plugin_msg_summary.py
Resource
win7-20230220-en
Behavioral task
behavioral16
Sample
plugin_msi.py
Resource
win7-20230220-en
Behavioral task
behavioral17
Sample
plugin_office_crypto.py
Resource
win7-20230220-en
Behavioral task
behavioral18
Sample
plugin_ppt.py
Resource
win7-20230220-en
Behavioral task
behavioral19
Sample
plugin_str_sub.py
Resource
win7-20230220-en
Behavioral task
behavioral20
Sample
plugin_stream_o.py
Resource
win7-20230220-en
Behavioral task
behavioral21
Sample
plugin_stream_sample.py
Resource
win7-20230220-en
Behavioral task
behavioral22
Sample
plugin_vba.py
Resource
win7-20230220-en
Behavioral task
behavioral23
Sample
plugin_vba_dco.py
Resource
win7-20230220-en
Behavioral task
behavioral24
Sample
plugin_vba_routines.py
Resource
win7-20230220-en
Behavioral task
behavioral25
Sample
plugin_vba_summary.py
Resource
win7-20230220-en
Behavioral task
behavioral26
Sample
plugin_vbaproject.py
Resource
win7-20230220-en
Behavioral task
behavioral27
Sample
plugin_version_vba.py
Resource
win7-20230220-en
Behavioral task
behavioral28
Sample
tools/re-search.py
Resource
win7-20230220-en
Behavioral task
behavioral29
Sample
tools/reextra.py
Resource
win7-20230220-en
Behavioral task
behavioral30
Sample
tools/reextra.pyc
Resource
win7-20230220-en
Behavioral task
behavioral31
Sample
tools/xmldump.py
Resource
win7-20230220-en
Behavioral task
behavioral32
Sample
tools/zipdump.py
Resource
win7-20230220-en
General
-
Target
plugin_str_sub.py
-
Size
1KB
-
MD5
d2849595b5af40bd722897b470d3ac8e
-
SHA1
d8ab979aa95ab8630b8fe8528009a4041d99409b
-
SHA256
dad916af9b1828f85aa633f40eb520ce33ff004e38c2c06ffc2c8b4d707a091d
-
SHA512
931e0403867a3b12fbb5865af84c8cc23d9c4872dcaa1870c6c8116e7003516ffae999916b50616a265899836205cc12cfdc857aafb3e360008c27897b617f0a
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies registry class 10 IoCs
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.py\ = "py_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.py rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\py_auto_file\shell\Read rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
AcroRd32.exepid process 520 AcroRd32.exe 520 AcroRd32.exe 520 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 1352 wrote to memory of 756 1352 cmd.exe rundll32.exe PID 1352 wrote to memory of 756 1352 cmd.exe rundll32.exe PID 1352 wrote to memory of 756 1352 cmd.exe rundll32.exe PID 756 wrote to memory of 520 756 rundll32.exe AcroRd32.exe PID 756 wrote to memory of 520 756 rundll32.exe AcroRd32.exe PID 756 wrote to memory of 520 756 rundll32.exe AcroRd32.exe PID 756 wrote to memory of 520 756 rundll32.exe AcroRd32.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\plugin_str_sub.py1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\plugin_str_sub.py2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\plugin_str_sub.py"3⤵
- Suspicious use of SetWindowsHookEx