ff381561194eae8d503307490082530d0b452297e33610d219d6a116814b6447

General

Target

Quote Request #7779510.doc
Size

295KB
MD5

56031cae7ff0acf6da4b77070c607774
SHA1

c9f9047e53d83becc7c6076c899a703f1e6e1a76
SHA256

ff381561194eae8d503307490082530d0b452297e33610d219d6a116814b6447
SHA512

5ec0385f97e866da8316f9d84ec4148fbfa9a069510a71aad28b1a1a6b71d05a3155d63d8ae5e341e3123ed9441ff6b8a6a9202a5798665ecce42d3b46e53265

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	2876	4024	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 deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_35a5	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457	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-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457\DisplayName = "OICE_16_974FA576_32C1D314_35A5"	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-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457\Moniker = "oice_16_974fa576_32c1d314_35a5"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457\Children	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_35a5	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_35a5\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_35A5\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-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457\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-1-15-2-2678511546-1103674567-3331758851-1310822138-2385525521-886501697-2888989457	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{DB94F478-F942-4C74-87CD-53A75963FF0B}\Abctfhghgdghgh‹.scT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4024 WINWORD.EXE
4024 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4024 wrote to memory of 2876	4024	WINWORD.EXE	FLTLDR.EXE
PID 4024 wrote to memory of 2876	4024	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\Quote Request #7779510.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:4024

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:2876

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_35a5\AC\Temp\FL5CDB.tmp
MD5
2b30fa679c8ac3fe5437bc0b00cd0b59

SHA1
24a4ecc1197d83d031ae83b02c6e13d9ae242bbc

SHA256
60f174927eea85d926fe6fa3d18297a507d098a419fb3bd1b27ce615da686da8

SHA512
dbf26d3629a4fd1ead8964acad15fbed58331122f13bd4bf04e9692eab0d4bc8326469ab01bf484d2bd7c9f442bf4e1272833323b6b30cd9cd7e44c810f4ccdb

Download Submit
memory/2876-179-0x0000000000000000-mapping.dmp

Download
memory/2876-181-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-114-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-115-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-116-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-117-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-118-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-119-0x00007FFAAA370000-0x00007FFAACE93000-memory.dmp

Filesize
43.1MB

Download
memory/4024-122-0x00007FFAA4990000-0x00007FFAA5A7E000-memory.dmp

Filesize
16.9MB

Download
memory/4024-123-0x00007FFAA2A90000-0x00007FFAA4985000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads