171197fa4de9c7bb2a92c42c7487964199511f0d72f2ce1894cd4c6be6179b41

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11-08-2024 20:01

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General

Target

virus yunyun/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
2536	WINWORD.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE
2536	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2768	2536	WINWORD.EXE	32
PID 2536 wrote to memory of 2768	2536	WINWORD.EXE	32
PID 2536 wrote to memory of 2768	2536	WINWORD.EXE	32
PID 2536 wrote to memory of 2768	2536	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\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:2536
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2768

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
31a1cbc0bcb50e8ae0953c5e3830e232

SHA1
c841a45354bcf105e217f1ce50c4fec7ba64e365

SHA256
363b52658908979ec3052937e4c3a3eff4b47b4c777b8c8bc50ca5282bdba4f2

SHA512
a9c70197afe0b904d0ffb26a80ea4bdef89f62686edf2bef0167362dc72e9a94e890495a461fab15e79bfa16c317490904d9d550cc0eee5bd6648238bf6f48f7

Download Submit
memory/2536-0-0x000000002FD81000-0x000000002FD82000-memory.dmp

Filesize
4KB

Download
memory/2536-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2536-2-0x000000007175D000-0x0000000071768000-memory.dmp

Filesize
44KB

Download
memory/2536-9-0x000000007175D000-0x0000000071768000-memory.dmp

Filesize
44KB

Download
memory/2536-24-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2536-25-0x000000007175D000-0x0000000071768000-memory.dmp

Filesize
44KB

Download