648eb3dd8252073b53f16887084c5415f56e90877aee69d29393efe1382679b4

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 20:40

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General

Target

eicar-standard-antivirus-test-files/eicar-excel-macro-powershell-echo.xls
Size

27KB
MD5

790a006eaf286426a43fae988410209c
SHA1

4f373b591e259ef3a740d65d82d16b03cff09fc9
SHA256

772faea5b925aede03956c3e8a08b3fdad0f9db3653415cd3d89d017a2617f46
SHA512

b2bc4d46fdb13e362af45aefa6561d7089ed9444674ce02d9006e5199820ce1bd830ccee286264f4f7827a19e51243fffd520c91a1c763dd6ff494ca84f3ffee
SSDEEP

768:Kik3hOdsylKlgryzc4bNhZFGzE+cL2knAJ6OiCk4BsUK:bk3hOdsylKlgryzc4bNhZFGzE+cL2knm

Score

10^/10

defense_evasion discovery

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2800	2264	powershell.exe	30

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2264	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2800	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2264	EXCEL.EXE
2264	EXCEL.EXE
2264	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2800	2264	EXCEL.EXE	31
PID 2264 wrote to memory of 2800	2264	EXCEL.EXE	31
PID 2264 wrote to memory of 2800	2264	EXCEL.EXE	31
PID 2264 wrote to memory of 2800	2264	EXCEL.EXE	31

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\eicar-standard-antivirus-test-files\eicar-excel-macro-powershell-echo.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -NoExit -EncodedCommand ZQBjAGgAbwAgACIAWAA1AE8AIQBQACUAQABBAFAAWwA0AFwAUABaAFgANQA0ACgAUABeACkANwBDAEMAKQA3AH0AYAAkAEUASQBDAEEAUgAtAFMAVABBAE4ARABBAFIARAAtAEEATgBUAEkAVgBJAFIAVQBTAC0AVABFAFMAVAAtAEYASQBMAEUAIQBgACQASAArAEgAKgAiAA==
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Obfuscated Files or Information

T1027

Command Obfuscation

T1027.010

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2264-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2264-1-0x000000007252D000-0x0000000072538000-memory.dmp

Filesize
44KB

Download
memory/2264-2-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2264-3-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2264-4-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2264-7-0x000000007252D000-0x0000000072538000-memory.dmp

Filesize
44KB

Download
memory/2264-8-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download