52969fae09c2428c701a8b51a20c1eb07bab1bca79acb21eaa910d764533155d

General

Target

Transferencia de fondos .doc
Size

1.0MB
MD5

28463ecd87dbf6503d58e158785965ac
SHA1

12c8088fc0ac36692e9067a1e28c1ef7bf46de46
SHA256

52969fae09c2428c701a8b51a20c1eb07bab1bca79acb21eaa910d764533155d
SHA512

fa9ad0f8a0de9120e0e6439548f7c3c2c22399b06818e3baaacb0ed5306610a385c594a7c7a763509e47bcfa0aa105c9480ebd37f810b7e756eff17697051061

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	3704	1696	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-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622\Children	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622	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-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622\Moniker = "oice_16_974fa576_32c1d314_3d0c"	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_3d0c\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_3d0c	WINWORD.EXE
Key deleted	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622	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-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622\DisplayName = "OICE_16_974FA576_32C1D314_3D0C"	WINWORD.EXE
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2646191798-3470864184-3961282995-2728098185-2249399052-4029044340-1876518622\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_3d0c	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_3d0c\Children	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{72339428-66FF-4744-B076-A9B9AF6E1C07}\abdtfhghgdghghœ.ScT:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1696 WINWORD.EXE
1696 WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE
1696	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1696 wrote to memory of 3704	1696	WINWORD.EXE	FLTLDR.EXE
PID 1696 wrote to memory of 3704	1696	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\Transferencia de fondos .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:1696

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:3704

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_3d0c\AC\Temp\FL193B.tmp
MD5
086b74afa7ed0eacc0d89aa41c22c8cf

SHA1
a0a02ca8ffb6477c1e70d28e6d698f101d2054d4

SHA256
d84fe688fad6d8d45969672129aa31aa0a97d1b5d3712335d3f57e5b0b73715c

SHA512
d7871ced5ae2994e9aee7317cb68492b15481f5c07a9d629ceacfb4fdfe0643875202a2af712df1f683ca2edbc7b4966b582cd3ffb9e4e4f5b29538c35d48cb4

Download Submit
memory/1696-122-0x00007FF8E3360000-0x00007FF8E444E000-memory.dmp

Filesize
16.9MB

Download
memory/1696-116-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1696-117-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1696-119-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1696-118-0x00007FF8EA670000-0x00007FF8ED193000-memory.dmp

Filesize
43.1MB

Download
memory/1696-114-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/1696-123-0x00007FF8E1460000-0x00007FF8E3355000-memory.dmp

Filesize
31.0MB

Download
memory/1696-115-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/3704-291-0x0000000000000000-mapping.dmp

Download
memory/3704-313-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/3704-317-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/3704-321-0x00007FF8C8B00000-0x00007FF8C8B10000-memory.dmp

Filesize
64KB

Download
memory/3704-391-0x00007FF8C8B00000-0x00007FF8C8B10000-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