5c34c14865f4a98f6cc623710e445f479175aeafafcb55614b139fb61cff9de7

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
26-08-2023 19:41

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General

Target

decrypted.xlsx
Size

2.1MB
MD5

711fe9b027c5f6e0cfd51694b69da120
SHA1

b32c2e1b63aaba1103d2f9b38dfa39c6b9cc2780
SHA256

4e05084fe9a60bba11a1b0941b4264d8dbebc30be1630a06f05f86c4466b1510
SHA512

33405b40dbbae9294c3df14a22545e0ae8a9acc26cac69ea6d6e6c00138105e1fc4523352169187a1fa969a7b455eadcc35d52bb1048d365b3007722607d06ed
SSDEEP

49152:xaphEoOdnowYVpoDzFNnyKfENk1HA3p5PGeRgcT1Md3Qvpmd:Av2lapmffIka3pZlTWOpmd

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 2760 EQNEDT32.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

Processes:

EQNEDT32.EXE

pid process

2760 EQNEDT32.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2572 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2572 EXCEL.EXE
2572 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2572 EXCEL.EXE
2572 EXCEL.EXE
2572 EXCEL.EXE

flow	pid	process
4	2760	EQNEDT32.EXE

pid	process
2760	EQNEDT32.EXE

pid	process
2572	EXCEL.EXE

pid	process
2572	EXCEL.EXE
2572	EXCEL.EXE

pid	process
2572	EXCEL.EXE
2572	EXCEL.EXE
2572	EXCEL.EXE

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\decrypted.xlsx
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2572

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:2760

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2572-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2572-1-0x00000000731BD000-0x00000000731C8000-memory.dmp

Filesize
44KB

Download
memory/2572-5-0x00000000731BD000-0x00000000731C8000-memory.dmp

Filesize
44KB

Download
memory/2760-4-0x00000000098B0000-0x00000000098B1000-memory.dmp

Filesize
4KB

Download