dbd58df04d603694d9997d6c0037781491109fe61473b61e3593ffe0ba40f680

General

Target

SecuriteInfo.com.Heur.19855.27653.xls
Size

188KB
MD5

49c3ee8fcf4d2f83e866019b95b0a557
SHA1

776b5f34cd7f5900b3c9fc98e7b65e1115bfad9f
SHA256

dbd58df04d603694d9997d6c0037781491109fe61473b61e3593ffe0ba40f680
SHA512

e8f57daa29deb1709850e06693db9025f66a37ee92f7e56054a7fd4e4b280c4ed4d8b70f0d49e854ddda6a9ba916e6dd83e6ec66bd7344e323e00388a62663d3

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://davidachim.com/wpold/document.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	368	2044	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\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\Se&nd to OneNote	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 (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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
2044 EXCEL.EXE
2044 EXCEL.EXE

pid	process
2044	EXCEL.EXE

pid	process
2044	EXCEL.EXE
2044	EXCEL.EXE
2044	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	EXCEL.EXE	rundll32.exe
PID 2044 wrote to memory of 368	2044	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\SecuriteInfo.com.Heur.19855.27653.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
PID:368

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/368-6-0x0000000000000000-mapping.dmp

Download
memory/368-7-0x0000000075251000-0x0000000075253000-memory.dmp

Filesize
8KB

Download
memory/1096-5-0x000007FEF63F0000-0x000007FEF666A000-memory.dmp

Filesize
2.5MB

Download
memory/2044-2-0x000000002F881000-0x000000002F884000-memory.dmp

Filesize
12KB

Download
memory/2044-3-0x0000000071671000-0x0000000071673000-memory.dmp

Filesize
8KB

Download
memory/2044-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads