5678487ef48332defdc02c465cd87285393b4003809ea95a7ae1355bcb6dab53

General

Target

Attachment_97775.xlsb
Size

197KB
MD5

f3816c84f0ba476a6a110432d3f15b0b
SHA1

75b31cd545c4d84116a387430ee4f87d08298cdc
SHA256

5678487ef48332defdc02c465cd87285393b4003809ea95a7ae1355bcb6dab53
SHA512

32f34a80536137247016592446138d2e3ab4e3d8a3bfc1e27b857b5056bcd702cdae29330e77ec9189a7ee76fba9c43a7406f51f23719727f7c4af47eff29a30

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://195.123.219.21/campo/t3/t3

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	1776	1676	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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\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
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 (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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1676 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1676 EXCEL.EXE
1676 EXCEL.EXE
1676 EXCEL.EXE
1676 EXCEL.EXE
1676 EXCEL.EXE
1676 EXCEL.EXE
1676 EXCEL.EXE

pid	process
1676	EXCEL.EXE

pid	process
1676	EXCEL.EXE
1676	EXCEL.EXE
1676	EXCEL.EXE
1676	EXCEL.EXE
1676	EXCEL.EXE
1676	EXCEL.EXE
1676	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	EXCEL.EXE	rundll32.exe
PID 1676 wrote to memory of 1776	1676	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\Attachment_97775.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\ProgramData\uoxv\67.dll,DllRegisterServer1
  2⤵
  - Process spawned unexpected child process
  PID:1776

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

C:\ProgramData\uoxv\67.dll

MD5
ee3276f8ddbbfe9552e55418e368f024

SHA1
c760fcd61b8f61ca60ae63987dc2705cbdb3bee6

SHA256
7a78b75bc0d6b97dd29198a29b276dfa53b410a28a7335d51e0ac69d1f6e04c5

SHA512
b0966a83aed724275a97ead87e91998e86d262660048c32ccf0292373918846784705210745ec96aaac1c79b2e0f6533e7bd8735c7d490e64ce0a884aa8c117e

Download Submit
memory/1592-5-0x000007FEF6460000-0x000007FEF66DA000-memory.dmp

Filesize
2.5MB

Download
memory/1676-2-0x000000002F581000-0x000000002F584000-memory.dmp

Filesize
12KB

Download
memory/1676-3-0x00000000715E1000-0x00000000715E3000-memory.dmp

Filesize
8KB

Download
memory/1676-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1776-6-0x0000000000000000-mapping.dmp

Download
memory/1776-7-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads