6902a1d34acdc62f6f9b0722852c9fd4a0ec8d05d9ccd936257d7a0224e7c3e4

General

Target

modal_2276.xlsb
Size

66KB
MD5

d73a7db9f19b66c09e831dc8b9de6e8a
SHA1

74532462f7debc64ec2bd9da5dfee6514db60309
SHA256

6902a1d34acdc62f6f9b0722852c9fd4a0ec8d05d9ccd936257d7a0224e7c3e4
SHA512

7a87ae3e33e88c15d1e17eb629f5703f73ebb1bd73478ce121911382b356b8feea01a7ae9b46b028d396174cd991154fcfa4fb3f143d51163484c4a1dc6e7f3d

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:

rundll32.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	1280	496	rundll32.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

496 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 496 wrote to memory of 1280 496 EXCEL.EXE rundll32.exe
PID 496 wrote to memory of 1280 496 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 496 wrote to memory of 1280	496	EXCEL.EXE	rundll32.exe
PID 496 wrote to memory of 1280	496	EXCEL.EXE	rundll32.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\modal_2276.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\wgrxtFW\kstEbWy\TtTeYqa.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/496-2-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-3-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-4-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-5-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-6-0x00007FF8091A0000-0x00007FF8097D7000-memory.dmp

Filesize
6.2MB

Download
memory/1280-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads