e31f5bfd01e6d5876991d6aae68921b7510090d880d2602ed57032e7d14a9cae

General

Target

paymen_invoice.doc
Size

340KB
MD5

285d05dd2a3a053e5095f09b609fca64
SHA1

668f3a6f6fa038bdbcd0e57d32783f37c259469d
SHA256

e31f5bfd01e6d5876991d6aae68921b7510090d880d2602ed57032e7d14a9cae
SHA512

1db0f843078059020981aba55b5fe40d72ec5cc1aa0903353bde23e28299cfd732435760f80e7423c7b999e64e810090bfbaa2f90609aa426cd79074c655c407

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	1796	4688	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 created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795	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-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795\DisplayName = "OICE_16_974FA576_32C1D314_11EB"	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_11eb\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_11eb\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_11eb	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-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795\Moniker = "oice_16_974fa576_32c1d314_11eb"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795\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_11eb	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795\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-1-15-2-2999783567-2264058475-21098770-740799494-2830717941-1318343047-441730795	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{70922355-85E2-4456-A90E-A1E0C202428A}\abdtfhghgdghgh.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4688 WINWORD.EXE
4688 WINWORD.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

WINWORD.EXE

pid	process
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE
4688	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4688 wrote to memory of 1796	4688	WINWORD.EXE	FLTLDR.EXE
PID 4688 wrote to memory of 1796	4688	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\paymen_invoice.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:4688

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:1796

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_11eb\AC\Temp\FLB1.tmp
MD5
ae720cf66d854deb4ecea0095c029628

SHA1
3b44dfbafab60de167791c77bf3f614ee0d55835

SHA256
511bf1022bab4c800620456e839abb2320e913d6e6ef8f4e093801e6b96d09b8

SHA512
1d1e001028c2100a73fff478c39914bb0dc48c584aeed22eed899627851e3d325125a08541d174dbcf2d09c060a2377bcd96c38ddcce075ab7c44a5350773350

Download Submit
memory/1796-293-0x0000000000000000-mapping.dmp

Download
memory/1796-311-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/1796-304-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/1796-329-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/1796-308-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-119-0x00007FFAC7E90000-0x00007FFACA9B3000-memory.dmp

Filesize
43.1MB

Download
memory/4688-124-0x00007FFAC0400000-0x00007FFAC22F5000-memory.dmp

Filesize
31.0MB

Download
memory/4688-123-0x00007FFAC2C50000-0x00007FFAC3D3E000-memory.dmp

Filesize
16.9MB

Download
memory/4688-118-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-117-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-115-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-116-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-120-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-471-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-472-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-473-0x00007FFAA7060000-0x00007FFAA7070000-memory.dmp

Filesize
64KB

Download
memory/4688-474-0x00007FFAA7060000-0x00007FFAA7070000-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