1508c5172f9a2a3bac47d878f67e10c5debb3beb58a86223ac2beb49d1a77e4c

General

Target

1508c5172f9a2a3bac47d878f67e10c5debb3beb58a86223ac2beb49d1a77e4c.xls
Size

95KB
MD5

3186ea1421ef263e2851058d3570cfd3
SHA1

1792cae0cec27c7be0b199bab666b31629103f79
SHA256

1508c5172f9a2a3bac47d878f67e10c5debb3beb58a86223ac2beb49d1a77e4c
SHA512

e0c5e405638f345d38626af300b0ac32ca53f2ab57712b839d74ad284fd3d0030a49e699f8da645c1866301446ca8a84090038da3c6cf28bde1723459fcb1f54
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgBHuS4hcTO97v7UYdEJm8q:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgC

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	3640	1700	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3684	1700	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2948	1700	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2536	1700	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
1700	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1700	EXCEL.EXE
1700	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE
1700	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 3640	1700	EXCEL.EXE	89
PID 1700 wrote to memory of 3640	1700	EXCEL.EXE	89
PID 1700 wrote to memory of 3684	1700	EXCEL.EXE	92
PID 1700 wrote to memory of 3684	1700	EXCEL.EXE	92
PID 1700 wrote to memory of 2948	1700	EXCEL.EXE	93
PID 1700 wrote to memory of 2948	1700	EXCEL.EXE	93
PID 1700 wrote to memory of 2536	1700	EXCEL.EXE	94
PID 1700 wrote to memory of 2536	1700	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1508c5172f9a2a3bac47d878f67e10c5debb3beb58a86223ac2beb49d1a77e4c.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:1700
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3640
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3684
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2948
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2536

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
885104547464afac0698fe21186c1f91

SHA1
332f7dbec5f2505e0b20763d0a8d458a63875187

SHA256
d8e61d1b722b6339e00e3ffadb9b3e334385462d0ae68a4f6a557427372b8b80

SHA512
1f7c2e633b7967d6f8e2289fa87c01fcc7e9c771ad6211090aca86b8de93dd1634e19b5fcf5fe9b4dad8eabb4466ee60cd725857948d5007d03ac1919b89177f

Download Submit
memory/1700-14-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-6-0x00007FFF540B0000-0x00007FFF540C0000-memory.dmp

Filesize
64KB

Download
memory/1700-3-0x00007FFF540B0000-0x00007FFF540C0000-memory.dmp

Filesize
64KB

Download
memory/1700-4-0x00007FFF540B0000-0x00007FFF540C0000-memory.dmp

Filesize
64KB

Download
memory/1700-8-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-7-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-10-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-15-0x00007FFF52050000-0x00007FFF52060000-memory.dmp

Filesize
64KB

Download
memory/1700-0-0x00007FFF540B0000-0x00007FFF540C0000-memory.dmp

Filesize
64KB

Download
memory/1700-13-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-1-0x00007FFF940CD000-0x00007FFF940CE000-memory.dmp

Filesize
4KB

Download
memory/1700-12-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-9-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-11-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-16-0x00007FFF52050000-0x00007FFF52060000-memory.dmp

Filesize
64KB

Download
memory/1700-5-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-38-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-39-0x00007FFF940CD000-0x00007FFF940CE000-memory.dmp

Filesize
4KB

Download
memory/1700-40-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-41-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-42-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-43-0x00007FFF94030000-0x00007FFF94225000-memory.dmp

Filesize
2.0MB

Download
memory/1700-2-0x00007FFF540B0000-0x00007FFF540C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads