a06c899c395e67e8d9cf518b134cab0f77bdc50f8090ea40dd168c3913bfd3bf

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 17:28

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General

Target

a06c899c395e67e8d9cf518b134cab0f77bdc50f8090ea40dd168c3913bfd3bf.xls
Size

80KB
MD5

6cef783310b37e3c29c02679cb3f68f9
SHA1

a681ad578bd865fa5ee239c7f92965c9a40cffb8
SHA256

a06c899c395e67e8d9cf518b134cab0f77bdc50f8090ea40dd168c3913bfd3bf
SHA512

77b2b2e24e73328deee1000eb7ab6576c795eb33d29ffe49bb40e0bf44efb1a55800e919d840560d714ddc25358333abdbe8ad948c21565b7201ad2e92c5fdb3
SSDEEP

1536:UTOKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgQbHuS4VcTO9/r7UYdEJep:UaKpb8rGYrMPe3q7Q0XV5xtezEsi8/de

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://www.boraintercambios.com.br/wp-includes/AN4ixiH4Th/

xlm40.dropper

https://brigadir.com/bkp/SwrVs4yU/

xlm40.dropper

http://handboog6.nl/META-INF/f/

xlm40.dropper

http://brb-ljubuski.com/wp-content/2MODCk0UZasTCL6tm/

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2132	2380	regsvr32.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1844	2380	regsvr32.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2756	2380	regsvr32.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2856	2380	regsvr32.exe	30

System Location Discovery: System Language Discovery 1 TTPs 5 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.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
2380	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2380	EXCEL.EXE
2380	EXCEL.EXE
2380	EXCEL.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2132	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1844	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2756	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35
PID 2380 wrote to memory of 2856	2380	EXCEL.EXE	35

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\a06c899c395e67e8d9cf518b134cab0f77bdc50f8090ea40dd168c3913bfd3bf.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui1.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui2.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:1844
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui3.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui4.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2856

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

memory/2380-1-0x000000007265D000-0x0000000072668000-memory.dmp

Filesize
44KB

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memory/2380-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

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memory/2380-2-0x000000007265D000-0x0000000072668000-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