78afb3547e7e9f424414d46a6d95d52a6c793b27350128496ebf08051e967b4b

General

Target

78afb3547e7e9f424414d46a6d95d52a6c793b27350128496ebf08051e967b4b.xls
Size

95KB
MD5

76eb433a1a6a62f20abb19e1915a35b2
SHA1

230a64ad9f23226faccda6c4999679c67de61d4f
SHA256

78afb3547e7e9f424414d46a6d95d52a6c793b27350128496ebf08051e967b4b
SHA512

563315c0938b20dda482b048a40d620d44c49c114e0dc8e2705fdb195f19219230fa99e4888cf9ed304dea029f90af603cfd231d268b2fd982c58d9c48d62cfa
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgBHuS4hcTO97v7UYdEJmgq:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dge

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	1536	4336	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4508	4336	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	216	4336	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2204	4336	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 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

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
4336	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4336	EXCEL.EXE
4336	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE
4336	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 1536	4336	EXCEL.EXE	95
PID 4336 wrote to memory of 1536	4336	EXCEL.EXE	95
PID 4336 wrote to memory of 4508	4336	EXCEL.EXE	100
PID 4336 wrote to memory of 4508	4336	EXCEL.EXE	100
PID 4336 wrote to memory of 216	4336	EXCEL.EXE	101
PID 4336 wrote to memory of 216	4336	EXCEL.EXE	101
PID 4336 wrote to memory of 2204	4336	EXCEL.EXE	102
PID 4336 wrote to memory of 2204	4336	EXCEL.EXE	102

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\78afb3547e7e9f424414d46a6d95d52a6c793b27350128496ebf08051e967b4b.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:4336
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1536
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4508
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:216
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2204

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

memory/4336-0-0x00007FFE54850000-0x00007FFE54860000-memory.dmp

Filesize
64KB

Download
memory/4336-3-0x00007FFE9486D000-0x00007FFE9486E000-memory.dmp

Filesize
4KB

Download
memory/4336-1-0x00007FFE54850000-0x00007FFE54860000-memory.dmp

Filesize
64KB

Download
memory/4336-2-0x00007FFE54850000-0x00007FFE54860000-memory.dmp

Filesize
64KB

Download
memory/4336-5-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-4-0x00007FFE54850000-0x00007FFE54860000-memory.dmp

Filesize
64KB

Download
memory/4336-8-0x00007FFE54850000-0x00007FFE54860000-memory.dmp

Filesize
64KB

Download
memory/4336-10-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-9-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-7-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-11-0x00007FFE521E0000-0x00007FFE521F0000-memory.dmp

Filesize
64KB

Download
memory/4336-6-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-12-0x00007FFE521E0000-0x00007FFE521F0000-memory.dmp

Filesize
64KB

Download
memory/4336-13-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-15-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-17-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-18-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-16-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-14-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download
memory/4336-38-0x00007FFE947D0000-0x00007FFE949C5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads