5e3f0cb52eb4774aac49f3d250347dd99f5535fb6241ab33127c1534f59799d2

General

Target

obligations (88)[3478].xls
Size

317KB
MD5

78bdd8ac2ff1478b2bf628d4e5dcde9c
SHA1

745d763b1cd4b0bda8dafaeb9fc53d3db237c5ac
SHA256

5e3f0cb52eb4774aac49f3d250347dd99f5535fb6241ab33127c1534f59799d2
SHA512

eaa82b328f4e90a346d1f23e81ec13d83779b663afe863556b9126dfa9e7a0d19208e71bf2d03b5335cb24366fde273430d511df1415bbd1e833f9a15e56c1cd

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://thealtbox.co.uk/ds/1602.gif

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	1572	292	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 (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE

pid	process
292	EXCEL.EXE

pid	process
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	EXCEL.EXE	rundll32.exe
PID 292 wrote to memory of 1572	292	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\obligations (88)[3478].xls"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:292

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\zdfb.zgz,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1572

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

memory/292-2-0x000000002FE91000-0x000000002FE94000-memory.dmp

Filesize
12KB

Download
memory/292-3-0x0000000071CE1000-0x0000000071CE3000-memory.dmp

Filesize
8KB

Download
memory/292-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1572-6-0x0000000000000000-mapping.dmp

Download
memory/1572-7-0x0000000076861000-0x0000000076863000-memory.dmp

Filesize
8KB

Download
memory/1780-5-0x000007FEF6B80000-0x000007FEF6DFA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads