73b3fa9d738ba7f1e520e06b4760b77d9b044a3f5e96c9e13227255875e43bfa

Analysis

max time kernel
136s
max time network
121s
platform
windows10_x64
resource
win10v20201028
submitted
08-04-2021 06:08

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General

Target

Products.xlsx
Size

446KB
MD5

aae56ba84519c7b28bba6f8240f2d169
SHA1

a90d2dcf16df76c5db19d2c48cb7148b4b675d75
SHA256

73b3fa9d738ba7f1e520e06b4760b77d9b044a3f5e96c9e13227255875e43bfa
SHA512

114b77853961ff46c52af2d38f4216f570aa5bab1b65d7b973db3725d1cebe9a68fead9e31ac54df2b41d2d3681c12886d09708481a82b1bfc13b52fc1c3395c

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1192 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1192 EXCEL.EXE
1192 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1192 wrote to memory of 2388	1192	EXCEL.EXE	splwow64.exe
PID 1192 wrote to memory of 2388	1192	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\Products.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1192

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2388

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

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Downloads

memory/1192-2-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1192-3-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1192-4-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/1192-5-0x00007FFE213B0000-0x00007FFE219E7000-memory.dmp

Filesize
6.2MB

Download
memory/1192-6-0x00007FFDFD230000-0x00007FFDFD240000-memory.dmp

Filesize
64KB

Download
memory/2388-7-0x0000000000000000-mapping.dmp

Download
memory/2388-8-0x0000000002FF0000-0x00000000030F1000-memory.dmp

Filesize
1.0MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads