44c5aca8dc1e487f9c620341d2e8a640143b0428bea4387c77a8a68004fd3bc4

Analysis

max time kernel
136s
max time network
131s
platform
windows10_x64
resource
win10v20201028
submitted
16-03-2021 04:05

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General

Target

conto_2792.xlsb
Size

86KB
MD5

1ad65dab80a62c9c724a2f1a6c3c0a82
SHA1

6fb13348b84f13e23c27e446a3f7fd4013aafbfe
SHA256

44c5aca8dc1e487f9c620341d2e8a640143b0428bea4387c77a8a68004fd3bc4
SHA512

5442d5d504db9a6da9937af4ac35111842fec153bd8ca76aaf5a64746ffe0f1e393f67751e329a9388a0791d1b3f15f18f737ccc8dbbaa7dc64a4048c202b97f

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

1032 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1032 EXCEL.EXE
1032 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.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\conto_2792.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1032-2-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp

Filesize
64KB

Download
memory/1032-3-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp

Filesize
64KB

Download
memory/1032-4-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp

Filesize
64KB

Download
memory/1032-5-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp

Filesize
64KB

Download
memory/1032-6-0x00007FFC35210000-0x00007FFC35847000-memory.dmp

Filesize
6.2MB

Download