f4b558ed2d3d7061a47277380eb22d57fd3ebd1ff339dceb1cfd58eb8d044bad

General

Target

f4b558ed2d3d7061a47277380eb22d57fd3ebd1ff339dceb1cfd58eb8d044bad.xls
Size

95KB
MD5

80a4a339331e6edbe2efde77a87cc2e0
SHA1

9ed2a841af1b5aea5fd1ab5df3d6b22df1e77e09
SHA256

f4b558ed2d3d7061a47277380eb22d57fd3ebd1ff339dceb1cfd58eb8d044bad
SHA512

b96bf9fb5937e5861194937200dca3d0f5e918fe851d0f90f304b93e0522eb57c76c3b687809036670435919b0bc306f0a0553fd9b7b49caa4dc77aace2fcaa3
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgYHuS4hcTO97v7UYdEJmFF2:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgo

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://educacionsanvicentefundacion.com/iplookup/wYEInbaN/

xlm40.dropper

https://www.4monkeys.com/wp-admin/dNAuBEKo/

xlm40.dropper

http://haircutbar.com/cgi-bin/dNfEA5F/

xlm40.dropper

http://gedebey-tvradio.info/wp-includes/T0J9THbd5f2/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3036	4316	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3812	4316	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1844	4316	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4304	4316	regsvr32.exe	81

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid	Process
4316	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid	Process
4316	EXCEL.EXE
4316	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	Process	procid_target
PID 4316 wrote to memory of 3036	4316	EXCEL.EXE	86
PID 4316 wrote to memory of 3036	4316	EXCEL.EXE	86
PID 4316 wrote to memory of 3812	4316	EXCEL.EXE	90
PID 4316 wrote to memory of 3812	4316	EXCEL.EXE	90
PID 4316 wrote to memory of 1844	4316	EXCEL.EXE	91
PID 4316 wrote to memory of 1844	4316	EXCEL.EXE	91
PID 4316 wrote to memory of 4304	4316	EXCEL.EXE	92
PID 4316 wrote to memory of 4304	4316	EXCEL.EXE	92

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f4b558ed2d3d7061a47277380eb22d57fd3ebd1ff339dceb1cfd58eb8d044bad.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3036
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3812
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1844
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
3KB

MD5
ee8aecc3f8c242663a6b8d8149cc478c

SHA1
02079a985f5e9e1fb67a1ffde78ef448ffdb8936

SHA256
14da79e4f58b3464701e4de59422d3fe4a243fefd039b08a0aea41c3cfa6cab3

SHA512
edbc6489b568f8574db210c8785c89aa9d1a42c757d8a760092db86d3f6b7ec34514de9ae80c34e4471fabd3a51ac52125f591cd98e23158c066152fe48d2efb

Download Submit
memory/4316-13-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-1-0x00007FFF07FAD000-0x00007FFF07FAE000-memory.dmp

Filesize
4KB

Download
memory/4316-15-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-17-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-2-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/4316-7-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-6-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-9-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-10-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-8-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-11-0x00007FFEC5710000-0x00007FFEC5720000-memory.dmp

Filesize
64KB

Download
memory/4316-0-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/4316-3-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/4316-5-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/4316-4-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/4316-18-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-20-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-21-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-19-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-16-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-14-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-34-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-35-0x00007FFF07FAD000-0x00007FFF07FAE000-memory.dmp

Filesize
4KB

Download
memory/4316-36-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-40-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/4316-12-0x00007FFEC5710000-0x00007FFEC5720000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads