ab1d6eacd13c7ce70852c85f8da60605b30722d728928ee6d65647750061c6f2

General

Target

6.xlsb
Size

190KB
MD5

10360f4838885037c303c5d1e54a40c1
SHA1

e22bc05b3ff0891e18f414f0dc468078bf24720d
SHA256

ab1d6eacd13c7ce70852c85f8da60605b30722d728928ee6d65647750061c6f2
SHA512

8b91f5a5114cc46d034d62dd07006e22a7ced0e0e54df5354243070259111182e851c6a0f7d0ef1225c8eecd12a789e314b709a28c37091f4d2080c2a16a51a0

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://195.123.220.220/campo/t2/t2

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1072	1040	rundll32.exe	EXCEL.EXE

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
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 (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1040 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1040 EXCEL.EXE
1040 EXCEL.EXE
1040 EXCEL.EXE
1040 EXCEL.EXE
1040 EXCEL.EXE
1040 EXCEL.EXE
1040 EXCEL.EXE

pid	process
1040	EXCEL.EXE

pid	process
1040	EXCEL.EXE
1040	EXCEL.EXE
1040	EXCEL.EXE
1040	EXCEL.EXE
1040	EXCEL.EXE
1040	EXCEL.EXE
1040	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.exe
PID 1040 wrote to memory of 1072	1040	EXCEL.EXE	rundll32.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\6.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\ProgramData\ahap\2339.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1040-2-0x000000002FF01000-0x000000002FF04000-memory.dmp

Filesize
12KB

Download
memory/1040-3-0x00000000715A1000-0x00000000715A3000-memory.dmp

Filesize
8KB

Download
memory/1040-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1072-6-0x0000000000000000-mapping.dmp

Download
memory/1072-7-0x0000000076311000-0x0000000076313000-memory.dmp

Filesize
8KB

Download
memory/1408-5-0x000007FEF7DF0000-0x000007FEF806A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads