935d6cba1e8f81848b73df158d48d5bd4a5afebc437f70963f72c209d2172ec2

Analysis

max time kernel
143s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 16:03

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General

Target

document-1507917794.xls
Size

331KB
MD5

4d9b665571635dab7fe432846bfa1f8e
SHA1

74937e0f4b7b33d99f921c803e6f78c30ee8e0f1
SHA256

935d6cba1e8f81848b73df158d48d5bd4a5afebc437f70963f72c209d2172ec2
SHA512

ac2a51c92eccab8fd74e8945d02fc6cb50c879f9644d81419faa6f71d42310864a026303bd800ef3816d0cd57e001bab0c9c789686d3b33761fd4c4e7fef4e39

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4060	656	regsvr32.exe	EXCEL.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 behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

656 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE
656	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 656 wrote to memory of 4060 656 EXCEL.EXE regsvr32.exe
PID 656 wrote to memory of 4060 656 EXCEL.EXE regsvr32.exe

description	pid	process	target process
PID 656 wrote to memory of 4060	656	EXCEL.EXE	regsvr32.exe
PID 656 wrote to memory of 4060	656	EXCEL.EXE	regsvr32.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\document-1507917794.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -s C:\giogti\mpomqr\fwpxeohi.dll
2⤵
- Process spawned unexpected child process
PID:4060

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/656-2-0x00007FFB84DE0000-0x00007FFB85417000-memory.dmp

Filesize
6.2MB

Download
memory/4060-3-0x0000000000000000-mapping.dmp

Download