39c889d91c4bc0fe97e2c565d3a0e103372ba15f988872d049b9277473a87e24

General

Target

Payment_Swift 20210930.doc
Size

271KB
MD5

28baa3fb9c80b7604bbc81962e5414b3
SHA1

6b61e6dc6eeeab42d9665659e3bc353bb913716d
SHA256

39c889d91c4bc0fe97e2c565d3a0e103372ba15f988872d049b9277473a87e24
SHA512

cb6cbe0e8be6e36dabd18613857f34b1b30871667fa594151d367c789765c277ed23fc882c4f11dca3ffdeae82aa71dad395a0210003643e7f796dc16db3d2a1

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	3932	656	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
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_104f	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_104f\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-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127	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-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127\DisplayName = "OICE_16_974FA576_32C1D314_104F"	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_104f\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_104f	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127\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-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127\Moniker = "oice_16_974fa576_32c1d314_104f"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1076071834-4270782119-4084125449-2050494880-2007380509-1683145255-1556221127\Children	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{09372AF4-1371-4D9A-84D0-F92B2DD897F4}\abdtfhghgeghDh.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

656 WINWORD.EXE
656 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE
656	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 656 wrote to memory of 3932 656 WINWORD.EXE FLTLDR.EXE
PID 656 wrote to memory of 3932 656 WINWORD.EXE FLTLDR.EXE

description	pid	process	target process
PID 656 wrote to memory of 3932	656	WINWORD.EXE	FLTLDR.EXE
PID 656 wrote to memory of 3932	656	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\Payment_Swift 20210930.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:656

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:3932

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_104f\AC\Temp\FL991E.tmp
MD5
ae7607b58d1746991f39ea120b2ae40e

SHA1
b020075cf1f70e57777533b65d76dd2992823e0d

SHA256
684784247045bc76c1fc098adbb80745c314d51885f78800bd8df4be3e954e23

SHA512
6c6da9c7131604a17fea3391580311c6be941c776068a39e9bda7f4b5b8ebec976d76c8f2eeb0743a79a0daf7b3a71c6e4534e9565eff71f9f1d0624687eb7d6

Download Submit
memory/656-122-0x00007FFA775A0000-0x00007FFA7868E000-memory.dmp

Filesize
16.9MB

Download
memory/656-116-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-117-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

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memory/656-119-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-118-0x00007FFA7B6B0000-0x00007FFA7E1D3000-memory.dmp

Filesize
43.1MB

Download
memory/656-114-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/656-123-0x00007FFA73090000-0x00007FFA74F85000-memory.dmp

Filesize
31.0MB

Download
memory/656-115-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/3932-360-0x0000000000000000-mapping.dmp

Download
memory/3932-362-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/3932-363-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/3932-364-0x00007FFA59300000-0x00007FFA59310000-memory.dmp

Filesize
64KB

Download
memory/3932-370-0x00007FFA59300000-0x00007FFA59310000-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