4a67cc05b5f45a774fafb1da0a0e8ac0f3839a0b520c0b2346bbeeace304aa77

General

Target

IMG_Order PO 094765 SMH.doc
Size

241KB
MD5

09c275af1fe403ef1955cf691179cb33
SHA1

49b1427effc50d6949c45e22fecbbfba4b2380c5
SHA256

4a67cc05b5f45a774fafb1da0a0e8ac0f3839a0b520c0b2346bbeeace304aa77
SHA512

4e48d08153575ce1238591654f557cc410d36b04f9e9160d0d26f9db9e1e3cb5ec267654af9a97eaad544d0e43f9a5fe2b1b27bfc2ddc16ee2aec8efe00e05ef

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	420	1612	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\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Modifies registry class 10 IoCs

Processes:

WINWORD.EXE

description	ioc	process
Key deleted	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3b1c	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\MAPPINGS\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827\CHILDREN	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827\Moniker = "oice_16_974fa576_32c1d314_3b1c"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827\Children	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3b1c	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827\DisplayName = "OICE_16_974FA576_32C1D314_3B1C"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3b1c\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\STORAGE\OICE_16_974FA576_32C1D314_3B1C\CHILDREN	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-609341921-173505214-1609914604-3738496091-3563636250-4160131462-1698390827	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{BC6AA626-E00A-4E2E-86F8-73B17F568B35}\abdtfhghgeghDh.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1612 WINWORD.EXE
1612 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE
1612	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 1612 wrote to memory of 420 1612 WINWORD.EXE FLTLDR.EXE
PID 1612 wrote to memory of 420 1612 WINWORD.EXE FLTLDR.EXE

description	pid	process	target process
PID 1612 wrote to memory of 420	1612	WINWORD.EXE	FLTLDR.EXE
PID 1612 wrote to memory of 420	1612	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\IMG_Order PO 094765 SMH.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:1612

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:420

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

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Downloads

C:\Users\Admin\AppData\Local\Packages\oice_16_974fa576_32c1d314_3b1c\AC\Temp\FL10E3.tmp
MD5
c990d8f464f20d01f30bc23ea506fada

SHA1
64377d6fcc81a0ff52d718f018b885ebf2d719ab

SHA256
52c1958fec5ca50029ddde084fd1495e767dc7099db13122d7a1de11737a9fea

SHA512
d87fcfa9523e7e1887c8abe770ad14742aeaa0cbf6d37c03cf8c81e91b0c4de86dc0ab113bbee46c2b4d9934a3ffd13326bb8c74ab9f4ee676d870a471d7d8e0

Download Submit
memory/420-304-0x0000000000000000-mapping.dmp

Download
memory/420-339-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/420-322-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/420-320-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/420-315-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/1612-118-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/1612-124-0x00007FFF2FAA0000-0x00007FFF31995000-memory.dmp

Filesize
31.0MB

Download
memory/1612-123-0x00007FFF34AA0000-0x00007FFF35B8E000-memory.dmp

Filesize
16.9MB

Download
memory/1612-119-0x00007FFF38BB0000-0x00007FFF3B6D3000-memory.dmp

Filesize
43.1MB

Download
memory/1612-120-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/1612-115-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/1612-117-0x00007FFF16690000-0x00007FFF166A0000-memory.dmp

Filesize
64KB

Download
memory/1612-116-0x00007FFF16690000-0x00007FFF166A0000-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