ffdfa8e7d36238ac625b595ff40cc2faae7b76a5b1a85579943c4b42cd4738fe

General

Target

MVC RFQSpecification.doc
Size

295KB
MD5

191f38f0ef0adca84572330b29a32034
SHA1

358ebb28a5a5adf4bfccc1199901a91156063101
SHA256

ffdfa8e7d36238ac625b595ff40cc2faae7b76a5b1a85579943c4b42cd4738fe
SHA512

a9a5f93954baae12194549d477ca2241149615fcec9ef79765329f832967b1f5c34f78ddee11b637884d371cc090c86dfdaf2fdd62a6a08b5c7177828daede18

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	1916	4008	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 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
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279\DisplayName = "OICE_16_974FA576_32C1D314_340C"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279\Moniker = "oice_16_974fa576_32c1d314_340c"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279\Children	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_340c	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_340c\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_340c\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_340c	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1703760698-1650183964-1027947191-1164605240-4169458715-753269181-1770209279\Children	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{A50D4076-AF82-43B6-B14A-29B7FAC97B2F}\Abctfhghgdghgh‹.scT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4008 WINWORD.EXE
4008 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE
4008	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4008 wrote to memory of 1916	4008	WINWORD.EXE	FLTLDR.EXE
PID 4008 wrote to memory of 1916	4008	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\MVC RFQSpecification.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:4008

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:1916

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_340c\AC\Temp\FL3EA5.tmp
MD5
ef4f189e0bd4c0c81d1bf9a31cba7a07

SHA1
71daa0b3cfb8e57f44c2228449e772613b6708d1

SHA256
03cf8af4b1c2317747f3c2527538762a30c0362825c4f6d03517bc3c67adeadb

SHA512
9d2905cdea20f6522d97004196752a1ba2b20b3ba8fed7cb2718af1754ffc457aa76bb52145138e2d813af9efa4c7675c4dc323d520c51a7f1a629fa29e08c89

Download Submit
memory/1916-179-0x0000000000000000-mapping.dmp

Download
memory/1916-181-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-114-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-115-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-116-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-117-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-119-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/4008-118-0x00007FFF98670000-0x00007FFF9B193000-memory.dmp

Filesize
43.1MB

Download
memory/4008-122-0x00007FFF92A50000-0x00007FFF93B3E000-memory.dmp

Filesize
16.9MB

Download
memory/4008-123-0x00007FFF90A20000-0x00007FFF92915000-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