df9f9bed6685eeba38defa87a755a0c8120f7b572094368e3aef41829039980d

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
15/08/2023, 04:59

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General

Target

factura.rtf
Size

11KB
MD5

05c137d8e79ce59ed6e4b7cd78e5b8a2
SHA1

3a41de3774b6a17a34a8bedf1a0881a3f08d492d
SHA256

5a31c77293af2920d7020d5d0236691adcea2c57c2716658ce118a5cba9d4913
SHA512

46551cb4556183b6d5e4fe20e1d2f916c9e50f109f1bec69cc3abce295d1be138c0dadc69ab7a510d4e29e59656b47b1d36a486c1e68d71c776271ff1ef58aa3
SSDEEP

192:TMv9/nrxOgNIVk04Pre4VqPuc+17rf14g/gjXKSDxX8VxrdPJH:Yv9/rsok+Prz1dZKXDsjtJH

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2328	EQNEDT32.EXE

Drops file in Windows directory 1 IoCs

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

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2328	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2160	WINWORD.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2160	WINWORD.EXE
2160	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2340	2160	WINWORD.EXE	33
PID 2160 wrote to memory of 2340	2160	WINWORD.EXE	33
PID 2160 wrote to memory of 2340	2160	WINWORD.EXE	33
PID 2160 wrote to memory of 2340	2160	WINWORD.EXE	33

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\factura.rtf"
1⤵
- Drops file in Windows directory
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2340

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Launches Equation Editor
PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
20KB

MD5
dfc6b605554f5b847fa5bac4149ef6d8

SHA1
170122bfd9ec52d2c33e873a86fe292b5d9a9367

SHA256
d9335e9d8a241ee7dd1fa10524fab507d4e1dd4abda121afbd69841dc867c1af

SHA512
0d2f38c15fa7e766b026af4e90ca835963751eb76ba77dae78ffb6942e0bc8d9e94915998c8e1f50bb02ac608edadc0f276973cc45704bc5815563a90cb8d47c

Download Submit
memory/2160-54-0x000000002FF20000-0x000000003007D000-memory.dmp

Filesize
1.4MB

Download
memory/2160-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2160-56-0x000000007196D000-0x0000000071978000-memory.dmp

Filesize
44KB

Download
memory/2160-64-0x000000002FF20000-0x000000003007D000-memory.dmp

Filesize
1.4MB

Download
memory/2160-65-0x000000007196D000-0x0000000071978000-memory.dmp

Filesize
44KB

Download
memory/2160-84-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2160-85-0x000000007196D000-0x0000000071978000-memory.dmp

Filesize
44KB

Download