7b5572ae246bcd3f6ee0375e1e7a8c8d4287dae4ca1803d72ae427d8ecc93a32

General

Target

catalogue_2021_samples_list_revise_ol.doc
Size

535KB
MD5

84c45c2b0e94b8d1d064e739150ba84c
SHA1

f6a98ac4e50a89495626b5eaebb85d1116554faa
SHA256

7b5572ae246bcd3f6ee0375e1e7a8c8d4287dae4ca1803d72ae427d8ecc93a32
SHA512

8fb31fc4147af9e1568c9799307b3d5a8b4a3ed607e14061769f239ce4dd9b10464b9f878900c8777f1550b9a9e8cdfb7901bb22d6fa958f9761a4831ddf6162

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.

Processes:

FLTLDR.EXE

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4928	3464	FLTLDR.EXE	WINWORD.EXE

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

Modifies registry class 10 IoCs

Processes:

WINWORD.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_37d9	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\STORAGE\OICE_16_974FA576_32C1D314_37D9\CHILDREN	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_37d9	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428\DisplayName = "OICE_16_974FA576_32C1D314_37D9"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428\Moniker = "oice_16_974fa576_32c1d314_37d9"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428\Children	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_37d9\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\MAPPINGS\S-1-15-2-487697093-2427017262-354901067-1464758429-3354721408-2768257063-1359647428\CHILDREN	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{2AB365AE-EE0B-4D12-8915-BC6B33A699BD}\abdtfhghgeghDh.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3464 WINWORD.EXE
3464 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE
3464	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 3464 wrote to memory of 4928	3464	WINWORD.EXE	FLTLDR.EXE
PID 3464 wrote to memory of 4928	3464	WINWORD.EXE	FLTLDR.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\catalogue_2021_samples_list_revise_ol.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3464

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:4928

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

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Downloads

C:\Users\Admin\AppData\Local\Packages\oice_16_974fa576_32c1d314_37d9\AC\Temp\FLE3AF.tmp
MD5
31ca21953ee668a0ce0c67fa759cc4a8

SHA1
6730675a6daf6f112d730512d3862681124a7a79

SHA256
47275a7d73459c02ca37a7c9b075fec6a6c3088fb78e6c81cffe0d299ac8f75b

SHA512
a4594d25605e5bd4e44229e8e89cca7ce85c3d67c315e8d9abd4f417f91ac2c9c765357d43533cdb5d8e5c20869bdcb508062b5c1d973003d09b1724f8d6e67e

Download Submit
memory/3464-123-0x00007FFD94540000-0x00007FFD9562E000-memory.dmp

Filesize
16.9MB

Download
memory/3464-117-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/3464-118-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/3464-120-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/3464-119-0x00007FFD98BF0000-0x00007FFD9B713000-memory.dmp

Filesize
43.1MB

Download
memory/3464-115-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/3464-124-0x00007FFD92640000-0x00007FFD94535000-memory.dmp

Filesize
31.0MB

Download
memory/3464-116-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/4928-361-0x0000000000000000-mapping.dmp

Download
memory/4928-363-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/4928-364-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/4928-365-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download
memory/4928-367-0x00007FFD783B0000-0x00007FFD783C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads