8d6eb0ea0a37d5573bd7a306d12837a74dd2e68a597b42516784b3f2d23743e4

Analysis

max time kernel
149s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
10-05-2021 07:02

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General

Target

Purchase Order-1245102021.xls
Size

60KB
MD5

c7bad1cde5a30aa2b665c62a1ebe3548
SHA1

e4cb443f698d32c572274f379e52e2c8e6296846
SHA256

8d6eb0ea0a37d5573bd7a306d12837a74dd2e68a597b42516784b3f2d23743e4
SHA512

1b083b95391f77b04c9f991a69d22d2f8ff74b227f85891723384090ad90a22dd357d1b8ebf3820a0c15afba216468ea3774e574c7352404d99772bb8c20172a

Score

1^/10

Malware Config

Signatures

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:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1892 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE
1892 EXCEL.EXE

pid	process
1892	EXCEL.EXE

pid	process
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1892 wrote to memory of 4080	1892	EXCEL.EXE	splwow64.exe
PID 1892 wrote to memory of 4080	1892	EXCEL.EXE	splwow64.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Purchase Order-1245102021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4080

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1892-114-0x00007FF7FC300000-0x00007FF7FF8B6000-memory.dmp

Filesize
53.7MB

Download
memory/1892-115-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-116-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-117-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-118-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-121-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-122-0x00007FF8EE870000-0x00007FF8EF95E000-memory.dmp

Filesize
16.9MB

Download
memory/1892-123-0x000001EB66D80000-0x000001EB68C75000-memory.dmp

Filesize
31.0MB

Download
memory/4080-179-0x0000000000000000-mapping.dmp

Download