b5b2501e8edbbfbe98a9a37d832c6beeb142258af1931fb7efbeb71816d346e9

General

Target

537.xls
Size

59KB
MD5

1080ea3405d7fda958c134b22779eba9
SHA1

a084dd81df0f23687f861e903bb7a5e1f8cb4956
SHA256

f9daa18f5b5f3b861192e888a93bc2bd54a5a29ed0b489860aa5f8fb96afc0d4
SHA512

e4a26cf1c55c85c76716a336739c00afcfc412a35ec2b0a1148989f7f91e53a84d118ad3ce312ec247da2f4105fb68028725d1cb1c372cb387c9fc616264c9c2

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://metodotiza.com/server.php

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

reg.exerundll32.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	1776	1852	reg.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	836	1852	rundll32.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

1852 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

pid	process
1852	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-1-5-21-3825035466-2522850611-591511364-1000\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\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
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1852 EXCEL.EXE
Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

EXCEL.EXE

pid process

1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE
1852 EXCEL.EXE

pid	process
1852	EXCEL.EXE

pid	process
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1852 wrote to memory of 1776	1852	EXCEL.EXE	reg.exe
PID 1852 wrote to memory of 1776	1852	EXCEL.EXE	reg.exe
PID 1852 wrote to memory of 1776	1852	EXCEL.EXE	reg.exe
PID 1852 wrote to memory of 1776	1852	EXCEL.EXE	reg.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 836	1852	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\537.xls
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\SysWOW64\reg.exe
"C:\Windows\system32\reg.exe" EXPORT HKCU\Software\Microsoft\Office\14.0\Excel\Security C:\Users\Public\Documents\UGDlDjB.txt /y
2⤵
- Process spawned unexpected child process
PID:1776

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\UvmPZB.txt,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:836

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

C:\Users\Public\Documents\UGDlDjB.txt
MD5
1084b35cb1aecef496dfdb263760a40c

SHA1
43d95f062749f3143838fe39460b3c5d541e194a

SHA256
48ccd7a8ed9873ff73eec7252ed9ce2882389aa43a5ec5ad072168c43320b25c

SHA512
9dbcfe0f39e04700f252b95cfb73a7977fe7a2ffe8de98510c9f62988300754c4e8eeb0a152ad87db71b28ee8c2fcb97d136215d2898ccbee5b8837a31eb7212

Download Submit
C:\Users\Public\Documents\UvmPZB.txt
MD5
4b00e6f97ed741aea9d8bfd80702844e

SHA1
5c9381f1805ef9599719ceb4f4f346e88269f009

SHA256
2d5ac353359c05254d524fb7788a2f6af8f94bd4df4415f7a1dd7b4269e05811

SHA512
f98637debb3284cf00dc9928a60558a82343957d98ed1a0253ef520c9bd3b89eafee60e29af1698acec3b24b0006fa946f7fc2be29062e52288a9d5b1f6a6230

Download Submit
memory/268-7-0x000007FEF77D0000-0x000007FEF7A4A000-memory.dmp

Filesize
2.5MB

Download
memory/836-8-0x0000000000000000-mapping.dmp

Download
memory/836-9-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download
memory/1776-5-0x0000000000000000-mapping.dmp

Download
memory/1852-2-0x000000002F9F1000-0x000000002F9F4000-memory.dmp

Filesize
12KB

Download
memory/1852-3-0x0000000071681000-0x0000000071683000-memory.dmp

Filesize
8KB

Download
memory/1852-4-0x000000005FFF0000-0x0000000060000000-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