724d1bdcf9e517c2055105448044b7c8427dd4b6bd9d3f626c1b8c284c797b86

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 21:05

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General

Target

724d1bdcf9e517c2055105448044b7c8427dd4b6bd9d3f626c1b8c284c797b86.xls
Size

91KB
MD5

0a20ad996d7c9d8f811a0a3f74b74c77
SHA1

4402fbe9a6ef86ac86a90767a7a61acc6e09012f
SHA256

724d1bdcf9e517c2055105448044b7c8427dd4b6bd9d3f626c1b8c284c797b86
SHA512

f82da7d607e5fc58f49a53006a9e8dd21cab074a3771fe3ac839478ab9cb207e20435c0d77ec8a3ad850a5cae8ec59283a6f70491426eaf11d6372d7a7c60f1b
SSDEEP

1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgEbCXuZH4gb4CEn9J4ZcEM:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg1

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.muyehuayi.com/cmp/8asA99KPsyA/v6lUsWbLen/

xlm40.dropper

http://concivilpa.com.py/wp-admin/i3CQu9dzDrMW/

xlm40.dropper

https://wijsneusmedia.nl/cgi-bin/kFB/

xlm40.dropper

http://www.angloextrema.com.br/assets/oEt1yYckHKlnNIq/

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	2484	596	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2204	596	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2216	596	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2848	596	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

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
596	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
596	EXCEL.EXE
596	EXCEL.EXE
596	EXCEL.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2484	596	EXCEL.EXE	31
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2204	596	EXCEL.EXE	32
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2216	596	EXCEL.EXE	33
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	EXCEL.EXE	34
PID 596 wrote to memory of 2848	596	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\724d1bdcf9e517c2055105448044b7c8427dd4b6bd9d3f626c1b8c284c797b86.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:596
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2848

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/596-1-0x000000007227D000-0x0000000072288000-memory.dmp

Filesize
44KB

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memory/596-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

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memory/596-15-0x000000007227D000-0x0000000072288000-memory.dmp

Filesize
44KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads