bf3f16d59b50dab4b140b142619e4217f3890c94ca696b72802e372f0aa7f337

General

Target

bf3f16d59b50dab4b140b142619e4217f3890c94ca696b72802e372f0aa7f337.xlsm
Size

38KB
MD5

9cc923502bb72a56735f1abd5322a34e
SHA1

4179b3b4b9dab070c817d759f50a38f2815c1b8b
SHA256

bf3f16d59b50dab4b140b142619e4217f3890c94ca696b72802e372f0aa7f337
SHA512

98219543ed116317064a145e7b214b739e47f741b5d432cef2fdacaeda6024d8f23f21f71b40671aec8bae3a55e8c514afb7c8f1157be160d619c95df53149a2
SSDEEP

768:SbdpCR8kjOZpqcVbZYpoRuBlIiOKMArOooooooooooooooooooooooooooFVIyYS:ywDOZZ1ZYpoQ/pMAeVIyYzaT

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://pianistprodigy.com/demolms/Ax6ZgvEJJ8HEKfXrp/

xlm40.dropper

https://risamfg.com/wp-admin/JtqFQW/

xlm40.dropper

https://thailand-rocco.com/wp-content/gE7UvFwLh/

xlm40.dropper

https://pregy.org/test/rXTl1DEv0CWCE/

xlm40.dropper

https://romusreselling.xyz/wordpress/Lgv7VKTvFFuBH8uct2Eq/

xlm40.dropper

https://olawyer.net/wp-includes/e8jtEIL3lFkImOvd9k/

xlm40.dropper

https://tebetdanelon.com.br/wp-content/iVrceXC3knlRRl/

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	4700	3992	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
3992	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3992	EXCEL.EXE
3992	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE
3992	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 4700	3992	EXCEL.EXE	100
PID 3992 wrote to memory of 4700	3992	EXCEL.EXE	100
PID 3992 wrote to memory of 4700	3992	EXCEL.EXE	100

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\bf3f16d59b50dab4b140b142619e4217f3890c94ca696b72802e372f0aa7f337.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:3992
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\wnru.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:4700

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
8f3ed594b790ab75770c56320514b241

SHA1
3189dfdbb906576482dd648b8b4be41c02a60861

SHA256
d3345b8358969793f1b05e7d515473ff4fb179ca582fd5f45eb2c3ac5f5b1148

SHA512
d7a7d8850412a57c8722b9a183a3f3fc63beffbb5cd464d7cb6bfcd22ce0494d2176b74818b9d5b97dd1e9f6481dbac24632e99449ec07049a8120a0a1534dfd

Download Submit
memory/3992-10-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-11-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-2-0x00007FFF550B0000-0x00007FFF550C0000-memory.dmp

Filesize
64KB

Download
memory/3992-4-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-5-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-6-0x00007FFF550B0000-0x00007FFF550C0000-memory.dmp

Filesize
64KB

Download
memory/3992-7-0x00007FFF550B0000-0x00007FFF550C0000-memory.dmp

Filesize
64KB

Download
memory/3992-1-0x00007FFF950CD000-0x00007FFF950CE000-memory.dmp

Filesize
4KB

Download
memory/3992-3-0x00007FFF550B0000-0x00007FFF550C0000-memory.dmp

Filesize
64KB

Download
memory/3992-9-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-8-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-12-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-13-0x00007FFF53020000-0x00007FFF53030000-memory.dmp

Filesize
64KB

Download
memory/3992-14-0x00007FFF53020000-0x00007FFF53030000-memory.dmp

Filesize
64KB

Download
memory/3992-33-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-34-0x00007FFF950CD000-0x00007FFF950CE000-memory.dmp

Filesize
4KB

Download
memory/3992-35-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/3992-0-0x00007FFF550B0000-0x00007FFF550C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads