18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 22:08

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General

Target

18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8.xls
Size

95KB
MD5

bbaafdac247e6552e7784ef812d7df72
SHA1

2431d65c7340e39df1f2af32db3e179cd701967a
SHA256

18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8
SHA512

36f5baea0c88998282045d7ab0e7578840d533d8f26b82d051575358d0a36fb1794077a89a1dc14ad3fe4cd56a047f873802520eea7ab139030da64f74e482d0
SSDEEP

1536:gFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg0yHuS4hcTO97v7UYdEJmAb:GKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgD

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://f5ajans.com/merthel/vvWRK/KVVGB6o7SPoorfaI/

xlm40.dropper

http://emett.com/images/kk2l4zoRKwv2vIEK/

xlm40.dropper

https://www.duinrand-s.nl/Nieuws/S9Y8DumfrBU1r5unO/

xlm40.dropper

http://galileuconcursos.com.br/wp-admin/Pt8VGg/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2500	2512	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2580	2512	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	892	2512	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	3040	2512	regsvr32.exe	29

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

Processes:

EXCEL.EXEregsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

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
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	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid	Process
2512	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid	Process
2512	EXCEL.EXE
2512	EXCEL.EXE
2512	EXCEL.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

EXCEL.EXE

description	pid	Process	procid_target
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2500	2512	EXCEL.EXE	31
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 2580	2512	EXCEL.EXE	32
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 892	2512	EXCEL.EXE	33
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34
PID 2512 wrote to memory of 3040	2512	EXCEL.EXE	34

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\18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8.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:2512
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:892
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:3040

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

Replay Monitor

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Downloads

memory/2512-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2512-1-0x0000000071CCD000-0x0000000071CD8000-memory.dmp

Filesize
44KB

Download
memory/2512-2-0x0000000071CCD000-0x0000000071CD8000-memory.dmp

Filesize
44KB

Download