029490043fe87b081869226c4a91b0b30fd94d55556bd89eda53c95aa547a521

Analysis

max time kernel
61s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 22:34

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General

Target

029490043fe87b081869226c4a91b0b30fd94d55556bd89eda53c95aa547a521.xlsm
Size

21KB
MD5

4d3ea999c1f60c580e5a5d51a656aab0
SHA1

ba512a19e619461640fe07bb569d2085771bfd7f
SHA256

029490043fe87b081869226c4a91b0b30fd94d55556bd89eda53c95aa547a521
SHA512

b23b8130364ba9abd55162ba79db6892904c3eb7df6c23bd220e743c0980b8473f58b26f7d1be51fa8e7a6107ea5f44f5aeef5dcd4f3e7cca798d2fa8d6d8fb9
SSDEEP

384:DhuAi/NjZS8EibbwBlwegASYrLb5CzgObff9kC+xbX77NWu:DtsNxzXQFCBn9kC+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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2936	2116	regsvr32.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2116	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31
PID 2116 wrote to memory of 2936	2116	EXCEL.EXE	31

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\029490043fe87b081869226c4a91b0b30fd94d55556bd89eda53c95aa547a521.xlsm
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116
- 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:2936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\rfs.dll

Filesize
114B

MD5
e89f75f918dbdcee28604d4e09dd71d7

SHA1
f9d9055e9878723a12063b47d4a1a5f58c3eb1e9

SHA256
6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023

SHA512
8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0

Download Submit
memory/2116-1-0x000000007220D000-0x0000000072218000-memory.dmp

Filesize
44KB

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memory/2116-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2116-7-0x000000007220D000-0x0000000072218000-memory.dmp

Filesize
44KB

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads