dcebef598b38647dc3f96a48d8bbddc3f4b1b45a92484ec15f4e3686ba559fcc

General

Target

SecuriteInfo.com.Heur.15222.18660.xls
Size

192KB
MD5

d3c7cfb10bf9afdd54b21b3a81aa4f88
SHA1

33ae344b6ef9b9af6ce3028d823a303045f1d902
SHA256

dcebef598b38647dc3f96a48d8bbddc3f4b1b45a92484ec15f4e3686ba559fcc
SHA512

d73e2e1a0626443b2d14478910e23ac146d9b68ff89e22dcbc56a504815e7b4bafe6e207d160dfbf487c7b49dfe27cc38072f61c2ba97bcfb6adde3dff8f3d8b

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	2084	1064	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1064 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE
1064	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1064 wrote to memory of 2084	1064	EXCEL.EXE	rundll32.exe
PID 1064 wrote to memory of 2084	1064	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\SecuriteInfo.com.Heur.15222.18660.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1064

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
PID:2084

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/1064-2-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/1064-3-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/1064-4-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/1064-5-0x00007FF943980000-0x00007FF943FB7000-memory.dmp

Filesize
6.2MB

Download
memory/1064-6-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/2084-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads