f621eab82e404316c476c37ebd55ea56d3174760b11920135b45cdb8b85fd7df

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/10/2024, 21:11

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General

Target

f621eab82e404316c476c37ebd55ea56d3174760b11920135b45cdb8b85fd7df.xls
Size

269KB
MD5

8acced8e2d850e1a011c892071fb99fb
SHA1

3a8e771fe40d69229a8687e029ea1c0e04574455
SHA256

f621eab82e404316c476c37ebd55ea56d3174760b11920135b45cdb8b85fd7df
SHA512

6c18b9cf9171c717c6bbba1f4d4e84ad98fa874ea4fd85778ce86b303e888e4e71ae7469e08ce0f417e65db9a167c76c0c60af5e739446536ebae725fe307483
SSDEEP

3072:CmeFShLJyxPgyMG3YEGLUz6z6Ty25P8V75Sz+vR3MPXXvpMI1JSWVbFQdzQ7ITk1:CmeFMyxPSG3YdLUpP8rjgNTXjc

Score

10^/10

defense_evasion discovery

Malware Config

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	2592	2380	cmd.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1804	2380	cmd.exe	30
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2852	2380	cmd.exe	30

Deletes itself 1 IoCs

pid	Process
2380	EXCEL.EXE

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Office loads VBA resources, possible macro or embedded object present

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\F8D67F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2380	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2380	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

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

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2952	2380	EXCEL.EXE	31
PID 2380 wrote to memory of 2952	2380	EXCEL.EXE	31
PID 2380 wrote to memory of 2952	2380	EXCEL.EXE	31
PID 2380 wrote to memory of 2952	2380	EXCEL.EXE	31
PID 2380 wrote to memory of 2852	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2852	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2852	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 2852	2380	EXCEL.EXE	32
PID 2380 wrote to memory of 1804	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1804	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1804	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 1804	2380	EXCEL.EXE	33
PID 2380 wrote to memory of 2592	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2592	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2592	2380	EXCEL.EXE	34
PID 2380 wrote to memory of 2592	2380	EXCEL.EXE	34
PID 2852 wrote to memory of 2320	2852	cmd.exe	38
PID 2852 wrote to memory of 2320	2852	cmd.exe	38
PID 2852 wrote to memory of 2320	2852	cmd.exe	38
PID 2852 wrote to memory of 2320	2852	cmd.exe	38

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2320	attrib.exe

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\f621eab82e404316c476c37ebd55ea56d3174760b11920135b45cdb8b85fd7df.xls
1⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2952
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2320
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:1804
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

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

Filesize
64KB

Download
memory/2380-1-0x000000007294D000-0x0000000072958000-memory.dmp

Filesize
44KB

Download
memory/2380-6-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-5-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-4-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-7-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-8-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-21-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-26-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-32-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-33-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-31-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-30-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-29-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-28-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-27-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-25-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-23-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-24-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-22-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

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memory/2380-20-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-19-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-18-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-17-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-15-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-16-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-14-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-13-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-123-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-124-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-57-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-35-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-34-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-11-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-10-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-9-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download
memory/2380-337-0x000000007294D000-0x0000000072958000-memory.dmp

Filesize
44KB

Download
memory/2380-338-0x0000000005860000-0x0000000005960000-memory.dmp

Filesize
1024KB

Download