c4155eb3caee31efbcf7672f25c39e875b81bba26400cf0c4d4840e534491122

General

Target

Proof of Payment.rtf
Size

230KB
MD5

ccb4d123d7d23778dc3b804f8b4c551a
SHA1

6abaeacc98255a7a8048f0a62a7b983720c904da
SHA256

c4155eb3caee31efbcf7672f25c39e875b81bba26400cf0c4d4840e534491122
SHA512

0ae4ac069b843d2bb45064a29fed582970d15621135ef5b584f10d7aee6be71a049085f317161eb3980cc05efcd65d1c3aefb98c3bd1a1139286d03934367cca

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	4600	4832	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-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091\DisplayName = "OICE_16_974FA576_32C1D314_DF9"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091\Moniker = "oice_16_974fa576_32c1d314_df9"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_df9	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_df9\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_df9	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091\Children	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-1721896960-3623377099-4097990083-597311227-2951511684-830981145-2474303091\Children	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_df9\Children	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{069CC13D-B753-46C1-B78F-E3CE2D6A95E8}\DbdtfhgYgeghDp .scT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4832 WINWORD.EXE
4832 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE
4832	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 4832 wrote to memory of 4600	4832	WINWORD.EXE	FLTLDR.EXE
PID 4832 wrote to memory of 4600	4832	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\Proof of Payment.rtf" /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:4832

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:4600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Packages\oice_16_974fa576_32c1d314_df9\AC\Temp\FL374C.tmp

Filesize
256KB

MD5
ce1ae1371f9e088275c1f033a26bea5a

SHA1
00b78ecdc6be763f3c939711205b5f51cd2a7bf2

SHA256
2065c0d8049b4bd2094535d99487b06fed8f1ab2ff5ef50a38fad053db4322da

SHA512
bc1f4d430013c9a79cd89d4caba270a86f17bbfdbb858320e313e887780374566a419657abe301c05976f7a38b6ef16c29d28256e4a4d7cbcb11b1ce9c104fdb

Download Submit
memory/4600-137-0x0000000000000000-mapping.dmp

Download
memory/4600-142-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4600-141-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4600-140-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4600-139-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4832-133-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4832-136-0x00007FFAA2CD0000-0x00007FFAA2CE0000-memory.dmp

Filesize
64KB

Download
memory/4832-135-0x00007FFAA2CD0000-0x00007FFAA2CE0000-memory.dmp

Filesize
64KB

Download
memory/4832-134-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4832-130-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4832-132-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download
memory/4832-131-0x00007FFAA4EF0000-0x00007FFAA4F00000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads