b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 13:07

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General

Target

b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036.xls
Size

70KB
MD5

26c57028eced8e9163734c1b964ffab5
SHA1

a42fd40e565eb19121b2e5bcc6973cb54488e8d2
SHA256

b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036
SHA512

05f1fb406278d0cc6d843bd5d60a3155931691a9ad65d0f3a2892ed70ffb3fac9747e8c3fe66bf4a10f5870a8c25a9bca967f31f1ffe36c645de68507b91753c
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+KJ+hDcnTLiQrRTZws8Eo:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM2

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://sacvasanth.com/public/lyP2lh1hlJr/

xlm40.dropper

https://webguruindia.com/theme/wTbEyLVvMNB3j/

xlm40.dropper

http://stockmorehouse.com/Casa_Grande/AS4VPkTsOqWDGGO/

Signatures

Process spawned unexpected child process 3 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	2864	2588	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2884	2588	regsvr32.exe	29
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	3052	2588	regsvr32.exe	29

System Location Discovery: System Language Discovery 1 TTPs 4 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

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
2588	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2588	EXCEL.EXE
2588	EXCEL.EXE
2588	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2864	2588	EXCEL.EXE	32
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 2884	2588	EXCEL.EXE	33
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	EXCEL.EXE	34
PID 2588 wrote to memory of 3052	2588	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\b2bca23e6a498ac26af5b12533adc2b5650f277e99bd4327355f0708fb863036.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:2588
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:3052

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/2588-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

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memory/2588-1-0x0000000072AED000-0x0000000072AF8000-memory.dmp

Filesize
44KB

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memory/2588-2-0x0000000072AED000-0x0000000072AF8000-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