f48b5a16d06fa9329c226e3912759867cbfceb1d3d566eaf846f5e7695a6f59c

General

Target

GFT_1802927270_483949076.xls
Size

188KB
MD5

731d8925af3f5e5a16b455b852a4d5e7
SHA1

463bff469a9076bf8d2a303b2abdd764887509f1
SHA256

f48b5a16d06fa9329c226e3912759867cbfceb1d3d566eaf846f5e7695a6f59c
SHA512

1459334a822c9758e994e8f17fb51a92c3258bd45ea1fdc1ba6d3b5fb2db46d903038d7273cec2f3ddf6bf9aa13c02f5537f60d4e6bb2963239754f69df11773

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	1340	724	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 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

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

724 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE
724	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 724 wrote to memory of 1340 724 EXCEL.EXE rundll32.exe
PID 724 wrote to memory of 1340 724 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 724 wrote to memory of 1340	724	EXCEL.EXE	rundll32.exe
PID 724 wrote to memory of 1340	724	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\GFT_1802927270_483949076.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:724

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
PID:1340

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/724-2-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/724-3-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/724-4-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/724-5-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/724-6-0x00007FFC33FC0000-0x00007FFC345F7000-memory.dmp

Filesize
6.2MB

Download
memory/1340-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads