171197fa4de9c7bb2a92c42c7487964199511f0d72f2ce1894cd4c6be6179b41

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/08/2024, 20:01

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General

Target

virus yunyun/_vti_cnf/My name is Yuyun.rtf
Size

1KB
MD5

5f973c8004be579518a85dfe2bcd56d7
SHA1

f691293fefabe3ff7f1bdd72230e0791f3777b80
SHA256

f48ed7892dd1743f121840d13ce017aabaea41b121438eca2fbf615352226a0a
SHA512

8c625bbecf326053fea32e895d1e1d8b4da45f0e5e5e2d01fe198ba577644d1d7db27f17423482771f448e4d707004bbfe67bf48ff382e052463037d8a250295

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

System Location Discovery: System Language Discovery 1 TTPs 1 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	WINWORD.EXE

Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2324	WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2712	2324	WINWORD.EXE	32
PID 2324 wrote to memory of 2712	2324	WINWORD.EXE	32
PID 2324 wrote to memory of 2712	2324	WINWORD.EXE	32
PID 2324 wrote to memory of 2712	2324	WINWORD.EXE	32

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\virus yunyun\_vti_cnf\My name is Yuyun.rtf"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
19KB

MD5
e03ca01c56d57cb591558136dbc15800

SHA1
95aa1413287d782ea33befa550d044ad7386c783

SHA256
9391dc54efb6fc2def6fa34243e4a8fa5953dcb5c6bfc097ecf5c0e05590cec4

SHA512
5a842d66f83c27adc390e51fb12b201d126b7b7a78702119010ab50586600b64e870752e63899ab42e5c5888d61f13aa2a85023a653deb6992d5d458cd04f0a5

Download Submit
memory/2324-0-0x000000002F8B1000-0x000000002F8B2000-memory.dmp

Filesize
4KB

Download
memory/2324-2-0x00000000719DD000-0x00000000719E8000-memory.dmp

Filesize
44KB

Download
memory/2324-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2324-9-0x00000000719DD000-0x00000000719E8000-memory.dmp

Filesize
44KB

Download
memory/2324-25-0x00000000719DD000-0x00000000719E8000-memory.dmp

Filesize
44KB

Download
memory/2324-24-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download