4967b9926e48dbfcf9e293abdfe546bb4c2eae750831441ad30c3194178fe84f

General

Target

4967b9926e48dbfcf9e293abdfe546bb4c2eae750831441ad30c3194178fe84f.rtf
Size

411KB
MD5

cdf10c30d465b956a09d8e8cd61b1591
SHA1

381f706596b67efcb0d32f7ba04e9ced8724fe6b
SHA256

4967b9926e48dbfcf9e293abdfe546bb4c2eae750831441ad30c3194178fe84f
SHA512

472cb49a7ebd5e4b1ae06309d3c1002debf7d04b14646f850323b0e7979006a83dff829c8e6f09da49381f665d543912d1402fc88933f25ae18166c3ce5cbebb
SSDEEP

6144:r0fUgaDHXDACjmfcKGdMpFLjHzvoY11IFYSbbmW+7OplFbEQZgSgiF:E1sbbmWftEQZ7gm

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4144	3404	FLTLDR.EXE	81

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	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

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327\DisplayName = "OICE_16_974FA576_32C1D314_2BD4"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_2bd4\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2001828875-173881036-1285558606-2463252430-3273045464-2876873982-2730132327\Moniker = "oice_16_974fa576_32c1d314_2bd4"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_2bd4	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_2bd4\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_2bd4	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3404	WINWORD.EXE
3404	WINWORD.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3404	WINWORD.EXE
3404	WINWORD.EXE

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE
3404	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 4468	3404	WINWORD.EXE	83
PID 3404 wrote to memory of 4468	3404	WINWORD.EXE	83
PID 3404 wrote to memory of 4144	3404	WINWORD.EXE	84
PID 3404 wrote to memory of 4144	3404	WINWORD.EXE	84

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\4967b9926e48dbfcf9e293abdfe546bb4c2eae750831441ad30c3194178fe84f.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:4468
- C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE
  "C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE" C:\Program Files\Common Files\Microsoft Shared\GRPHFLT\PNG32.FLT
  2⤵
  - Process spawned unexpected child process
  PID:4144

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Packages\oice_16_974fa576_32c1d314_2bd4\AC\Temp\FL2FCE.tmp

Filesize
25KB

MD5
d8a8176ab9e7504d6af2b7216cc6ad1d

SHA1
d440f698fd666e11502635bf91ab8a8be3376ccc

SHA256
dca454b88ece53b28d84fe6492a94a0b93c91be840d647e2a645fe5f4b8e1f39

SHA512
730a10fc2b176c0be3987e7e4321819e454c18d8c0d8ba455d90551bf0f1e29cb5f329e6c245c598196965bacc438a29f6944772fb6ac3755b36e00e6b69c7fc

Download Submit
memory/3404-133-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-134-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-135-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-136-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-137-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/3404-138-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/3404-151-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-132-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-150-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-149-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-148-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4144-140-0x0000000000000000-mapping.dmp

Download
memory/4144-145-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4144-144-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4144-143-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4144-142-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4468-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads