b1854b042e1e000cad8dc081066cec4db5ca40e0f598f91a46ae49a12d3a6270

General

Target

b1854b042e1e000cad8dc081066cec4db5ca40e0f598f91a46ae49a12d3a6270.xls
Size

95KB
MD5

569ddba1d2a8e3b1b2f33c175acf8c53
SHA1

0d5e4e028d5b945c0f189da47e269b4449bc1394
SHA256

b1854b042e1e000cad8dc081066cec4db5ca40e0f598f91a46ae49a12d3a6270
SHA512

506da8126d59dc64405bba6ecc7f24856462cb09e24b32dc9dc32c2c3ffa1d62778e34d6a8c07d88120cfe48c159457207f437a734b2b050db89259f35138f77
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgBHuS4hcTO97v7UYdEJmPq:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgf

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://atperson.com/campusvirtual/3aAaeSKPaURF/

xlm40.dropper

https://buffetmazzi.com.br/ckfinder/i/

xlm40.dropper

http://atici.net/c/MgEC/

xlm40.dropper

http://www.birebiregitim.net/wp-includes/f/

Signatures

Process spawned unexpected child process 4 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4964	652	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3372	652	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1688	652	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3344	652	regsvr32.exe	82

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
652	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
652	EXCEL.EXE
652	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 4964	652	EXCEL.EXE	89
PID 652 wrote to memory of 4964	652	EXCEL.EXE	89
PID 652 wrote to memory of 3372	652	EXCEL.EXE	93
PID 652 wrote to memory of 3372	652	EXCEL.EXE	93
PID 652 wrote to memory of 1688	652	EXCEL.EXE	94
PID 652 wrote to memory of 1688	652	EXCEL.EXE	94
PID 652 wrote to memory of 3344	652	EXCEL.EXE	95
PID 652 wrote to memory of 3344	652	EXCEL.EXE	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b1854b042e1e000cad8dc081066cec4db5ca40e0f598f91a46ae49a12d3a6270.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:652
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4964
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3372
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1688
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3344

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
f2db314d61bfe83ec8e6b7841653d974

SHA1
bee4d3871ac488e965e640a7903c339f70c4a250

SHA256
0a1a7801bfd5f319432a3cd92a4c44072abfa74c31ae862bc593433c734d54fb

SHA512
e753f8255fa8911faf5a2c9d81dd96d2409260da8983469fcaad9cac0b338de0e573328ef8a27a949e033b62afb98fd2e3503d0e0fc4eb1a16ffca1ca9305f98

Download Submit
memory/652-13-0x00007FFE8F440000-0x00007FFE8F450000-memory.dmp

Filesize
64KB

Download
memory/652-10-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-5-0x00007FFE91D70000-0x00007FFE91D80000-memory.dmp

Filesize
64KB

Download
memory/652-2-0x00007FFE91D70000-0x00007FFE91D80000-memory.dmp

Filesize
64KB

Download
memory/652-8-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-7-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-1-0x00007FFED1D8D000-0x00007FFED1D8E000-memory.dmp

Filesize
4KB

Download
memory/652-11-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-9-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-12-0x00007FFE8F440000-0x00007FFE8F450000-memory.dmp

Filesize
64KB

Download
memory/652-3-0x00007FFE91D70000-0x00007FFE91D80000-memory.dmp

Filesize
64KB

Download
memory/652-6-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-18-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-15-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-16-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-17-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-4-0x00007FFE91D70000-0x00007FFE91D80000-memory.dmp

Filesize
64KB

Download
memory/652-14-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-40-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-41-0x00007FFED1D8D000-0x00007FFED1D8E000-memory.dmp

Filesize
4KB

Download
memory/652-42-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-43-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-47-0x00007FFED1CF0000-0x00007FFED1EE5000-memory.dmp

Filesize
2.0MB

Download
memory/652-0-0x00007FFE91D70000-0x00007FFE91D80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads