a5cdabf24a793c7a49f5019354f01966beab699404e0b110289ff31972563e1b

Analysis

max time kernel
109s
max time network
18s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 01:48

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General

Target

a5cdabf24a793c7a49f5019354f01966beab699404e0b110289ff31972563e1b.xls
Size

640KB
MD5

8f2d6511b837e8cd7dc78c5e90962d37
SHA1

cb96735fabecd2188f5caf42282d48e02481d6e7
SHA256

a5cdabf24a793c7a49f5019354f01966beab699404e0b110289ff31972563e1b
SHA512

1136db4e66fbf2ddb2c19edaf922e54aabd6b70b1229e95ba96726c170c4769116fb7cf511d511388232840d86282b1b24da278c08d9e9333affcbad61b7a9c4
SSDEEP

12288:inWR73VmTzNIwsDgaO8XfFhP7Ih/MuJjP2UJM0o4zYWBY:iWRUNtqOOulP2soBWu

Score

10^/10

discovery execution

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

powershell.exepowershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2916	1872	powershell.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1876	1872	powershell.exe	EXCEL.EXE

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2916 powershell.exe
1876 powershell.exe

pid	process
2916	powershell.exe
1876	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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:

powershell.exepowershell.exeEXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.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

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

1872 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exepowershell.exe

pid process

2916 powershell.exe
1876 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2916 powershell.exe
Token: SeDebugPrivilege 1876 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1872 EXCEL.EXE
1872 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1872 EXCEL.EXE
1872 EXCEL.EXE
1872 EXCEL.EXE

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

pid	process
1872	EXCEL.EXE

pid	process
2916	powershell.exe
1876	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	1876	powershell.exe

pid	process
1872	EXCEL.EXE
1872	EXCEL.EXE

pid	process
1872	EXCEL.EXE
1872	EXCEL.EXE
1872	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1872 wrote to memory of 2916	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 2916	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 2916	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 2916	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 1876	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 1876	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 1876	1872	EXCEL.EXE	powershell.exe
PID 1872 wrote to memory of 1876	1872	EXCEL.EXE	powershell.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\a5cdabf24a793c7a49f5019354f01966beab699404e0b110289ff31972563e1b.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "[System.IO.File]::WriteAllBytes('C:\Users\Admin\AppData\Local\Microsoft\UiNexual.zip', [System.Convert]::FromBase64String([System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Microsoft\UiNexual.zip.b64')))"
2⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2916

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "Expand-Archive -Path 'C:\Users\Admin\AppData\Local\Microsoft\UiNexual.zip' -DestinationPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup'"
2⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1876

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\UiNexual.zip.b64

Filesize
242KB

MD5
908c9561b4d8a395c0e82028c9a1ba49

SHA1
5f7620f45023da81a7ddaf32f1c1b4c9ef89048d

SHA256
b4f31548b761b49759443e1a69b9905bb155f03d2e3ab5da2b59563fe6d4b3ee

SHA512
1d8a193f48c2cba727b4ca50877edca61d28ec433ad0cdfe9f3d30f95e7e9bef396629681ad270c521fb6e67a72eedb54c3bd5a18ff18c9fea8c153cf13c6566

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\QN2UNMRFCX3UL52XDDP0.temp

Filesize
7KB

MD5
6f418025a4a7affdf53e0b691538503d

SHA1
e5ab59aed098c1521c141139dc231c38295ee7ff

SHA256
30c0a5ee13eeebd44ad1897a76d2a84f7074227d3fb46eb4323536649a91b0ab

SHA512
4692687b2e33b01b2a366786fca0e85440de7a34a956e550155f5bac63238245ca6f1d466a4af8f4027b5206a317178c9ad556170249dee65c4b5539b3683e40

Download Submit
memory/1872-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1872-1-0x000000007295D000-0x0000000072968000-memory.dmp

Filesize
44KB

Download
memory/1872-2-0x000000007295D000-0x0000000072968000-memory.dmp

Filesize
44KB

Download
memory/1872-7-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-6-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-9-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-5-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-4-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-3-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-8-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-13-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-12-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-31-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-34-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-36-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-35-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-55-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-56-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-54-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-53-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-51-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1872-65-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-64-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-63-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-62-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-61-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-60-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-59-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-58-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-52-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-49-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-48-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-47-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-45-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-44-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-43-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-42-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-41-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-40-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-39-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-38-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-46-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-33-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-32-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-30-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-29-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-28-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-27-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-74-0x000000007295D000-0x0000000072968000-memory.dmp

Filesize
44KB

Download
memory/1872-26-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-25-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-24-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-23-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-22-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-20-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-19-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-18-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-17-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-16-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-15-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-11-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1872-10-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download