2c26ee6caccdb4e06bb3afe0aa6dfea764ad00639a5ea2408dad490343c01fb7

General

Target

invisible_shields.docm
Size

264KB
MD5

a219cb562f2365f2899410772193a74a
SHA1

136709ca3f9ba4646f59d40ffd892b4a51b452bb
SHA256

43fd8d207da16fd3acff874b90819272a8fb0ac1c81c4fcb7a37e2caad345829
SHA512

e2ab830b7bdcdc1099413e78050d86610fa82766bc87319398196a6797caf10158d83981b98fda50367dd846c2d6d87519a52daa566312031d078ccd9817693b
SSDEEP

6144:/xE0cCW+Gai6zM6oPeek5qqaeLeqNwBIXmRthL:/xp/ziEMPPW5qGwaWHhL

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	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

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

NTFS ADS 30 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x64_000_vcRuntimeMinimum_x64 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x86.log-MSI_vc_red.msi (2).txt:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x64_0_vcRuntimeMinimum_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x64_001_vcRuntimeAdditional_x64 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x86_000_vcRuntimeMinimum_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x64_1_vcRuntimeAdditional_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x86_1_vcRuntimeAdditional_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x64_000_vcRuntimeMinimum_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x86_001_vcRuntimeAdditional_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x86_0_vcRuntimeMinimum_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x86_001_vcRuntimeAdditional_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x86_1_vcRuntimeAdditional_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x86_000_vcRuntimeMinimum_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x64_001_vcRuntimeAdditional_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x86_000_vcRuntimeMinimum_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x64.log-MSI_vc_red.msi.txt:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x86.log.html:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x64_000_vcRuntimeMinimum_x64 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x64_001_vcRuntimeAdditional_x64 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x86_001_vcRuntimeAdditional_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x64.log-MSI_vc_red.msi (2).txt:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x86_0_vcRuntimeMinimum_x86 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x64_001_vcRuntimeAdditional_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2013_x86_000_vcRuntimeMinimum_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x64_000_vcRuntimeMinimum_x64.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2022_x86_001_vcRuntimeAdditional_x86.log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x86.log (2).html:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2010_x86.log-MSI_vc_red.msi.txt:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x64_0_vcRuntimeMinimum_x64 (2).log:Zone.Identifier	WINWORD.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{0F55AB41-86C5-4015-9EEF-E2C459874CB9}\vcredist2012_x64_1_vcRuntimeAdditional_x64 (2).log:Zone.Identifier	WINWORD.EXE

Opens file in notepad (likely ransom note) 3 IoCs
ransomware

Processes:

NOTEPAD.EXENOTEPAD.EXENOTEPAD.EXE

pid process

3424 NOTEPAD.EXE
1372 NOTEPAD.EXE
4288 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4376 WINWORD.EXE
4376 WINWORD.EXE
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

WINWORD.EXE

pid process

4376 WINWORD.EXE
4376 WINWORD.EXE
4376 WINWORD.EXE

pid	process
3424	NOTEPAD.EXE
1372	NOTEPAD.EXE
4288	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

WINWORD.EXE

pid	process
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE
4376	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4376 wrote to memory of 3000	4376	WINWORD.EXE	splwow64.exe
PID 4376 wrote to memory of 3000	4376	WINWORD.EXE	splwow64.exe

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\invisible_shields.docm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4376

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3000

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3036

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\debug\PASSWD.LOG
1⤵
- Opens file in notepad (likely ransom note)
PID:1372

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\debug\sammui.log
1⤵
- Opens file in notepad (likely ransom note)
PID:4288

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\debug\NetSetup.LOG
1⤵
- Opens file in notepad (likely ransom note)
PID:3424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3000-139-0x0000000000000000-mapping.dmp

Download
memory/4376-132-0x00007FFAD9750000-0x00007FFAD9760000-memory.dmp

Filesize
64KB

Download
memory/4376-133-0x00007FFAD9750000-0x00007FFAD9760000-memory.dmp

Filesize
64KB

Download
memory/4376-134-0x00007FFAD9750000-0x00007FFAD9760000-memory.dmp

Filesize
64KB

Download
memory/4376-135-0x00007FFAD9750000-0x00007FFAD9760000-memory.dmp

Filesize
64KB

Download
memory/4376-136-0x00007FFAD9750000-0x00007FFAD9760000-memory.dmp

Filesize
64KB

Download
memory/4376-137-0x00007FFAD6FA0000-0x00007FFAD6FB0000-memory.dmp

Filesize
64KB

Download
memory/4376-138-0x00007FFAD6FA0000-0x00007FFAD6FB0000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads