3eb8d4428390aff16ffb7d9c85f82b449c250363eb4df033c279543a4f86e1b9

Analysis

max time kernel
137s
max time network
147s
platform
windows10_x64
resource
win10v200430
submitted
15/07/2020, 16:09

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General

Target
3eb8d4428390aff16ffb7d9c85f82b449c250363eb4df033c279543a4f86e1b9.xls
Size 367KB
Sample200715-wf5zmdg7ee
SHA256 3eb8d4428390aff16ffb7d9c85f82b449c250363eb4df033c279543a4f86e1b9
MD5 68ccc298d38de0e6e0342d69314c1cae
SHA1 55cf4de58c3a4963198233aa23bea062e7721219
SHA512 c1d949e6eb25013a61bc73f4a814fc8e11d119385a32b74407747ee86d837eb220c439772a591a09f8715c8bd04631f702328c8b68a199e4ce7fc38540b070bf
MD5 SHA1 SHA512

Score

10^/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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE
2536	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2536	EXCEL.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4060	2536	rundll32.exe	67

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 4060	2536	EXCEL.EXE	73
PID 2536 wrote to memory of 4060	2536	EXCEL.EXE	73

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\3eb8d4428390aff16ffb7d9c85f82b449c250363eb4df033c279543a4f86e1b9.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\cLKxjLh\tIpHswX\ONCWNER.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:4060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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