3a12068f2e8db89de560110edc5c93a29f92fd01cc51a5f4bfb14c12a862e84b

Analysis

max time kernel
28s
max time network
132s
platform
windows10_x64
resource
win10v200430
submitted
29-06-2020 19:28

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General

Target

263673.xls
Size

89KB
MD5

1580e540ad5fbaca156c0f63129c22fc
SHA1

f968d84ce60f50168cbc63e0cbaa3fbcc00995e0
SHA256

3a12068f2e8db89de560110edc5c93a29f92fd01cc51a5f4bfb14c12a862e84b
SHA512

486f9f19fc4371705e6719bc8ddfe2d4b7b0dc8514a28621f508c344ba90092a0f369ea81f341cb1234134f693e61ee85195d6caa9a6c759cbbb4acbe36cb7d2

Score

8^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2564 wrote to memory of 2748	2564	EXCEL.EXE	exrhNWW.exe
PID 2564 wrote to memory of 2748	2564	EXCEL.EXE	exrhNWW.exe
PID 2564 wrote to memory of 2748	2564	EXCEL.EXE	exrhNWW.exe

Executes dropped EXE 1 IoCs

Processes:

exrhNWW.exe

pid process

2748 exrhNWW.exe

pid	process
2748	exrhNWW.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:

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 use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2564 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\263673.xls"
1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
PID:2564

C:\VaLELpD\CSVYQoE\exrhNWW.exe
"C:\VaLELpD\CSVYQoE\exrhNWW.exe"
2⤵
- Executes dropped EXE
PID:2748

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

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Downloads

C:\VaLELpD\CSVYQoE\exrhNWW.exe

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C:\VaLELpD\CSVYQoE\exrhNWW.exe

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memory/2748-0-0x0000000000000000-mapping.dmp

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