Overview
overview
10Static
static
10Challenge_...m.docx
windows7-x64
4Challenge_...m.docx
windows10-2004-x64
1Challenge_...1.docx
windows7-x64
4Challenge_...1.docx
windows10-2004-x64
1Challenge_...y.docx
windows7-x64
4Challenge_...y.docx
windows10-2004-x64
1Challenge_...1.docx
windows7-x64
4Challenge_...1.docx
windows10-2004-x64
1tools/numb...ing.py
ubuntu-18.04-amd64
1tools/numb...ing.py
debian-9-armhf
1tools/numb...ing.py
debian-9-mips
1tools/numb...ing.py
debian-9-mipsel
1decoder_add1.py
ubuntu-18.04-amd64
1decoder_add1.py
debian-9-armhf
1decoder_add1.py
debian-9-mips
1decoder_add1.py
debian-9-mipsel
1decoder_ah.py
ubuntu-18.04-amd64
1decoder_ah.py
debian-9-armhf
1decoder_ah.py
debian-9-mips
1decoder_ah.py
debian-9-mipsel
1decoder_chr.py
ubuntu-18.04-amd64
1decoder_chr.py
debian-9-armhf
1decoder_chr.py
debian-9-mips
1decoder_chr.py
debian-9-mipsel
1decoder_rol1.py
ubuntu-18.04-amd64
1decoder_rol1.py
debian-9-armhf
1decoder_rol1.py
debian-9-mips
1decoder_rol1.py
debian-9-mipsel
1decoder_xor1.py
ubuntu-18.04-amd64
1decoder_xor1.py
debian-9-armhf
1decoder_xor1.py
debian-9-mips
1decoder_xor1.py
debian-9-mipsel
1Analysis
-
max time kernel
101s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02-09-2022 16:48
Static task
static1
Behavioral task
behavioral1
Sample
Challenge_FIles/Employee_W2_Form.docx
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
Challenge_FIles/Employee_W2_Form.docx
Resource
win10v2004-20220901-en
Behavioral task
behavioral3
Sample
Challenge_FIles/Employees_Contact_Audit_Oct_2021.docx
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
Challenge_FIles/Employees_Contact_Audit_Oct_2021.docx
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
Challenge_FIles/Work_From_Home_Survey.docx
Resource
win7-20220812-en
Behavioral task
behavioral6
Sample
Challenge_FIles/Work_From_Home_Survey.docx
Resource
win10v2004-20220812-en
Behavioral task
behavioral7
Sample
Challenge_FIles/income_tax_and_benefit_return_2021.docx
Resource
win7-20220812-en
Behavioral task
behavioral8
Sample
Challenge_FIles/income_tax_and_benefit_return_2021.docx
Resource
win10v2004-20220812-en
Behavioral task
behavioral9
Sample
tools/numbers-to-string.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral10
Sample
tools/numbers-to-string.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral11
Sample
tools/numbers-to-string.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral12
Sample
tools/numbers-to-string.py
Resource
debian9-mipsel-en-20211208
Behavioral task
behavioral13
Sample
decoder_add1.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral14
Sample
decoder_add1.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral15
Sample
decoder_add1.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral16
Sample
decoder_add1.py
Resource
debian9-mipsel-en-20211208
Behavioral task
behavioral17
Sample
decoder_ah.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral18
Sample
decoder_ah.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral19
Sample
decoder_ah.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral20
Sample
decoder_ah.py
Resource
debian9-mipsel-en-20211208
Behavioral task
behavioral21
Sample
decoder_chr.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral22
Sample
decoder_chr.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral23
Sample
decoder_chr.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral24
Sample
decoder_chr.py
Resource
debian9-mipsel-en-20211208
Behavioral task
behavioral25
Sample
decoder_rol1.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral26
Sample
decoder_rol1.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral27
Sample
decoder_rol1.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral28
Sample
decoder_rol1.py
Resource
debian9-mipsel-en-20211208
Behavioral task
behavioral29
Sample
decoder_xor1.py
Resource
ubuntu1804-amd64-en-20211208
Behavioral task
behavioral30
Sample
decoder_xor1.py
Resource
debian9-armhf-en-20211208
Behavioral task
behavioral31
Sample
decoder_xor1.py
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral32
Sample
decoder_xor1.py
Resource
debian9-mipsel-en-20211208
General
-
Target
Challenge_FIles/Employee_W2_Form.docx
-
Size
12KB
-
MD5
45e7d6562bfddb816d45649dd667abde
-
SHA1
00087e46ec0ef6225de59868fd016bd9dd77fa3c
-
SHA256
679bbe0c50754853978a3a583505ebb99bce720cf26a6aaf8be06cd879701ff1
-
SHA512
0567873b42eece93787da4f4c3b72ecb0d952450d8eb59b354a5f91ed95395a2662171e05cdcf4a829fdbd0b5cbcca97701fef9b96b1ad0d8728922bbd0288fa
-
SSDEEP
192:f6ijVmar18H111M05AgPekrFD2h0vsmyVk7PeOJ2wc3rMKkokceeQh:f6ijca6H111/eo1hvsHieIhoseQh
Malware Config
Signatures
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
NTFS ADS 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Users\Admin\AppData\Local\Temp\Challenge_FIles\mhtml:arsenal.30cm.tw:1212\word.html!x-usc:arsenal.30cm.tw:1212\word.html WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 1656 WINWORD.EXE 1656 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
WINWORD.EXEpid process 1656 WINWORD.EXE 1656 WINWORD.EXE 1656 WINWORD.EXE 1656 WINWORD.EXE 1656 WINWORD.EXE 1656 WINWORD.EXE 1656 WINWORD.EXE
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Challenge_FIles\Employee_W2_Form.docx" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1656