8f02443e60bace0a38ca66a09f628b5a5cb06e7ecc69011ed27b879f4eaa11c9

General

Target

THIRD PO.doc
Size

1.0MB
MD5

4126a02a7c1813d85e7aebae88257220
SHA1

c84b7d02f15e5edd969f5815433321d2beb3784f
SHA256

8f02443e60bace0a38ca66a09f628b5a5cb06e7ecc69011ed27b879f4eaa11c9
SHA512

8bc6529b39dc2ff046551d1f176e51d0830cce92dab0bd41ce30d7021bf1711114ce97ade4336298106b3325811467f3655a17466add7319a9d013cde9e5ef42

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	4076	640	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 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

Processes:

WINWORD.EXE

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

Processes:

WINWORD.EXE

description	ioc	process
Key deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_e1e	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_e1e	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_e1e\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_e1e\Children	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128\DisplayName = "OICE_16_974FA576_32C1D314_E1E"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128\Moniker = "oice_16_974fa576_32c1d314_e1e"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2755814325-3073144866-3766879506-1977476824-4075795378-2846966335-3216717128\Children	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{AA78A1B7-9D2C-45B9-BECE-20AC77E3327B}\abdtfhghgdghghœ.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

640 WINWORD.EXE
640 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE
640	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 640 wrote to memory of 4076 640 WINWORD.EXE FLTLDR.EXE
PID 640 wrote to memory of 4076 640 WINWORD.EXE FLTLDR.EXE

description	pid	process	target process
PID 640 wrote to memory of 4076	640	WINWORD.EXE	FLTLDR.EXE
PID 640 wrote to memory of 4076	640	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\THIRD PO.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:640

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:4076

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_e1e\AC\Temp\FLA88A.tmp
MD5
d25e2848810f99734d01bab9973c2614

SHA1
0e168e5abbb3f5152466d7cfc94c3fb03d3a5855

SHA256
ed284def341e4971561d8da68ae5a766f0ae9c7f4924fa63c773fc62fa2401eb

SHA512
a4220f143e32cdc2ee7d9c3f9ae72233f3dff47f4012c80bc79b5115a689d9c30ca935c6e87ea0d2df848eac4c7deb817a6d6f94fb32852b23f94c5f3e66bbec

Download Submit
memory/640-122-0x00007FF8C9130000-0x00007FF8CA21E000-memory.dmp

Filesize
16.9MB

Download
memory/640-116-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/640-117-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/640-119-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/640-118-0x00007FF8CD9F0000-0x00007FF8D0513000-memory.dmp

Filesize
43.1MB

Download
memory/640-114-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/640-123-0x00007FF8C6780000-0x00007FF8C8675000-memory.dmp

Filesize
31.0MB

Download
memory/640-115-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/4076-360-0x0000000000000000-mapping.dmp

Download
memory/4076-362-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/4076-363-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/4076-364-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/4076-366-0x00007FF8ACF90000-0x00007FF8ACFA0000-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