66b66fcd3ebb2a51ef73fae0049f5029215ce432d3647bc54ee5245912a6c955

General

Target

66b66fcd3ebb2a51ef73fae0049f5029215ce432d3647bc54ee5245912a6c955.xlsb
Size

1.6MB
MD5

a63485b442a8206671ebc6a88be95235
SHA1

6527d42ec4b02786a32169dab0389a4774ad19b8
SHA256

66b66fcd3ebb2a51ef73fae0049f5029215ce432d3647bc54ee5245912a6c955
SHA512

f20136bc6815771eda601eb610b69fe151a708c1efc1f0774023ae9c5ae08394bde0877d9b413e39fd21b33cb88bed0737ceab29dc8218a12d8d972ac5beec59
SSDEEP

49152:un29XzQSjOwUpz7qI6AtLqj+Kxaj/zEpSbbHJ:ASKwczOIdlEaj/zEsfJ

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

File opened (read-only) \??\Y: EXCEL.EXE
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

description	ioc	process
File opened (read-only)	\??\Y:	EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1048 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1048 EXCEL.EXE
1048 EXCEL.EXE
1048 EXCEL.EXE
1048 EXCEL.EXE
1048 EXCEL.EXE
1048 EXCEL.EXE
1048 EXCEL.EXE

pid	process
1048	EXCEL.EXE

pid	process
1048	EXCEL.EXE
1048	EXCEL.EXE
1048	EXCEL.EXE
1048	EXCEL.EXE
1048	EXCEL.EXE
1048	EXCEL.EXE
1048	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\66b66fcd3ebb2a51ef73fae0049f5029215ce432d3647bc54ee5245912a6c955.xlsb
1⤵
- Enumerates connected drives
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1048-1-0x0000000071FBD000-0x0000000071FC8000-memory.dmp

Filesize
44KB

Download
memory/1048-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1048-16-0x00000000070A0000-0x00000000078A0000-memory.dmp

Filesize
8.0MB

Download
memory/1048-19-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-20-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-23-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-22-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-21-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-17-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-18-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-24-0x0000000071FBD000-0x0000000071FC8000-memory.dmp

Filesize
44KB

Download
memory/1048-25-0x00000000070A0000-0x00000000078A0000-memory.dmp

Filesize
8.0MB

Download
memory/1048-26-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-27-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-28-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-29-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-31-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-30-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download
memory/1048-32-0x000000000A510000-0x000000000A520000-memory.dmp

Filesize
64KB

Download

Analysis

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