67738d67dc177220e327de0edcc4f512966d1d2001e1f6213d5e84634ee2241e

General

Target

67738d67dc177220e327de0edcc4f512966d1d2001e1f6213d5e84634ee2241e.xlsm
Size

21KB
MD5

b248f43d0e31c1e1e30881d08d6723da
SHA1

68d0dd80444ded20935baa4bce2a83aef050ea65
SHA256

67738d67dc177220e327de0edcc4f512966d1d2001e1f6213d5e84634ee2241e
SHA512

ce7d0da268e4bfc6973fca5515d5066127166bc010f9806f7b56595adf67a13f4bdb0316bb745cfae12ae9c0fece4fbd45932712b87de680518593fb3707e724
SSDEEP

384:ThuAi/NjZS8EibbwBlwegASYrLb5CzgObff9kC+xbX77NWu:TtsNxzXQFCBn9kC+xbL71

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://beetle-j.jp/wp-admin/ErM4mW05tdj/

xlm40.dropper

https://brutobrasil.com.br/pdf/toO18cIP3/

xlm40.dropper

http://e3technology.in/2checkout_integration_php/rDcr1Wl90WWA9M/

Signatures

Process spawned unexpected child process 1 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	2992	2716	regsvr32.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

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
2716	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2716	EXCEL.EXE
2716	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2992	2716	EXCEL.EXE	89
PID 2716 wrote to memory of 2992	2716	EXCEL.EXE	89
PID 2716 wrote to memory of 2992	2716	EXCEL.EXE	89

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\67738d67dc177220e327de0edcc4f512966d1d2001e1f6213d5e84634ee2241e.xlsm"
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:2716
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2992

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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
1KB

MD5
cab8a17d8f75120be3aa44882c3eacad

SHA1
97283678bd4ab60ae11dac6b4932ef77465efd8b

SHA256
89eeb5b4397ff90093da5f2247399c0baa62de329adc4bdb1ed14483dd232ae7

SHA512
45c4227fe6361e7b0b0d7575299923c751a492fb4929d951f3bccb67a145a50f4fd157f17dd2ff41fc2cea4fd5538009c427c4653b766c0f3313d15223b89239

Download Submit
C:\Users\Admin\rfs.dll

Filesize
114B

MD5
e89f75f918dbdcee28604d4e09dd71d7

SHA1
f9d9055e9878723a12063b47d4a1a5f58c3eb1e9

SHA256
6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023

SHA512
8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0

Download Submit
memory/2716-14-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-4-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-15-0x00007FFE85EA0000-0x00007FFE85EB0000-memory.dmp

Filesize
64KB

Download
memory/2716-5-0x00007FFE88430000-0x00007FFE88440000-memory.dmp

Filesize
64KB

Download
memory/2716-6-0x00007FFE88430000-0x00007FFE88440000-memory.dmp

Filesize
64KB

Download
memory/2716-8-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-7-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-10-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-12-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-13-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-0-0x00007FFE88430000-0x00007FFE88440000-memory.dmp

Filesize
64KB

Download
memory/2716-2-0x00007FFE88430000-0x00007FFE88440000-memory.dmp

Filesize
64KB

Download
memory/2716-9-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-16-0x00007FFE85EA0000-0x00007FFE85EB0000-memory.dmp

Filesize
64KB

Download
memory/2716-11-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-20-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-19-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-18-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-17-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-3-0x00007FFEC844D000-0x00007FFEC844E000-memory.dmp

Filesize
4KB

Download
memory/2716-41-0x00007FFEC83B0000-0x00007FFEC85A5000-memory.dmp

Filesize
2.0MB

Download
memory/2716-1-0x00007FFE88430000-0x00007FFE88440000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads