85f192a954a264402cd5fe9351de358e2a62ec79c8ee752bf1d98b2ffd1c338c

General

Target

SecuriteInfo.com.Heur.1259.27857.xls
Size

192KB
MD5

f32afde8dfb244d8e9afc9d2952b8318
SHA1

9e19bf42d5f80fded78e515c9788b7acb2ea4b1b
SHA256

85f192a954a264402cd5fe9351de358e2a62ec79c8ee752bf1d98b2ffd1c338c
SHA512

4d2a0cb127d68c98ea75cd55a012417350be4ec0c16becb9db59169f7f131fc4dd77bd775e4dc2135c015cdc8d6a62027efc027adf98e79e937df2631999c4f5

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	2348	832	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 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

832 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 832 wrote to memory of 2348 832 EXCEL.EXE rundll32.exe
PID 832 wrote to memory of 2348 832 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 832 wrote to memory of 2348	832	EXCEL.EXE	rundll32.exe
PID 832 wrote to memory of 2348	832	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.1259.27857.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
PID:2348

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/832-2-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-3-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-4-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-5-0x00007FFAEE390000-0x00007FFAEE9C7000-memory.dmp

Filesize
6.2MB

Download
memory/832-6-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/2348-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads