5c34c14865f4a98f6cc623710e445f479175aeafafcb55614b139fb61cff9de7

Resubmissions

04-08-2023 07:37

230804-jf93jaaa62 8

04-08-2023 07:10

230804-hzev3aba8v 8

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
04-08-2023 07:10

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General

Target

44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795.xlsx
Size

2.1MB
MD5

c9ad9506bcccfaa987ff9fc11b91698d
SHA1

e788183a2a021f74a21f609e514bb63c4ef2fe49
SHA256

44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795
SHA512

509c7c387810399b4a35371b1ae77733184299ee631f13b70e1582a9bed32c8eebaea79beb8ce7bf07ac8d3fcd7d09fd460a461266e073d6d2e6acc5e3bc68b2
SSDEEP

49152:hEK5fuBxYw1iHM+eP4yFIIFd52Mp21N5xb/CVBqCwj7IjLQc1U4l:SK5f6xYSl+VMy8G5ZC6CCIQc1/l

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

5 2960 EQNEDT32.EXE
7 2960 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

2960 EQNEDT32.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2512 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2512 EXCEL.EXE
2512 EXCEL.EXE
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

2512 EXCEL.EXE
2512 EXCEL.EXE
2512 EXCEL.EXE
2512 EXCEL.EXE

flow	pid	process
5	2960	EQNEDT32.EXE
7	2960	EQNEDT32.EXE

pid	process
2960	EQNEDT32.EXE

pid	process
2512	EXCEL.EXE

pid	process
2512	EXCEL.EXE
2512	EXCEL.EXE

pid	process
2512	EXCEL.EXE
2512	EXCEL.EXE
2512	EXCEL.EXE
2512	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\44e65a641fb970031c5efed324676b5018803e0a768608d3e186152102615795.xlsx
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2512

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:2960

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

C:\Users\Public\vbc.exe
Filesize
297B

MD5
e2bdad32ee840a09f97430dafb4f882c

SHA1
bd39dae85f6517a66eacd6bec6cbc14b0bf5bb0b

SHA256
3b97adad5cc1d0cbb9ddf29e19782f61903bfcb706a9eaaeb8f4805d7e001b7b

SHA512
1f24b45452df5e1db4c8039b3a733b9db291a4abd504a9f34c1dc74c40ece9be00f8bbde0ef5be74cc9cefd0e64840e95bec8fe978c0c1da56bedf55ba616544

Download Submit
memory/2512-53-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2512-54-0x0000000073BCD000-0x0000000073BD8000-memory.dmp

Filesize
44KB

Download
memory/2512-65-0x0000000073BCD000-0x0000000073BD8000-memory.dmp

Filesize
44KB

Download
memory/2960-64-0x000000000A030000-0x000000000A031000-memory.dmp

Filesize
4KB

Download
memory/2960-66-0x000000000A030000-0x000000000A031000-memory.dmp

Filesize
4KB

Download