6cf0a44011ec1e1a891d7d06357c4687634e42d65a3eecfe9180e608b5d6e150

General

Target

case#_139739537_445143708.xls
Size

124KB
MD5

2739a59d758db92aafa95fa723456172
SHA1

5466fe009cf7ee11393085ebd99c16963d49eb0a
SHA256

6cf0a44011ec1e1a891d7d06357c4687634e42d65a3eecfe9180e608b5d6e150
SHA512

34a1ab6d936cad32599b367011aad3bc8635d1efc50e68b5b621d35d736465105dba88d97aab19120d759431bcf29d13f504e29ec673e19d430dae03d20f8839

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://digitaldays.ro/site/brandupi.php

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	344	1036	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
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 (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
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
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\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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1036 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1036 EXCEL.EXE
1036 EXCEL.EXE
1036 EXCEL.EXE

pid	process
1036	EXCEL.EXE

pid	process
1036	EXCEL.EXE
1036	EXCEL.EXE
1036	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	EXCEL.EXE	rundll32.exe
PID 1036 wrote to memory of 344	1036	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\case#_139739537_445143708.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\svh.osts,DllRegisterServer1
2⤵
- Process spawned unexpected child process
PID:344

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/344-6-0x0000000000000000-mapping.dmp

Download
memory/344-7-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download
memory/1036-2-0x000000002F8F1000-0x000000002F8F4000-memory.dmp

Filesize
12KB

Download
memory/1036-3-0x0000000071281000-0x0000000071283000-memory.dmp

Filesize
8KB

Download
memory/1036-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1516-5-0x000007FEF6030000-0x000007FEF62AA000-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