adb9ba27ef2d3392323890dc4d09d5ff510d9b5dc2c0220c0bfafb464a709392

General

Target

672d6e97bfb84a7e63fcc1283e4b505f.xls
Size

36KB
MD5

672d6e97bfb84a7e63fcc1283e4b505f
SHA1

08238eb48884b146af90b8afe8f6f871f927cb16
SHA256

adb9ba27ef2d3392323890dc4d09d5ff510d9b5dc2c0220c0bfafb464a709392
SHA512

2ed67c2c8ef53dc47f5b2ec2cc03c37199f5d95f9bbdacee219d946f24a1d942fc87e3d12d30111ef9af40e4a3573755e77bbcc8e89e30c5debcdc1a860da5b8
SSDEEP

768:FPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJf+q477S+41qjz/qFe:tok3hbdlylKsgqopeJBWhZFGkE+cL2NN

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3808	1788	explorer.exe	17

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1788	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1788	EXCEL.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 3808	1788	EXCEL.EXE	63
PID 1788 wrote to memory of 3808	1788	EXCEL.EXE	63
PID 5064 wrote to memory of 5060	5064	explorer.exe	67
PID 5064 wrote to memory of 5060	5064	explorer.exe	67

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\672d6e97bfb84a7e63fcc1283e4b505f.xls"
1⤵
- 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:1788
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Public\Documents\OSxhL.vbs
  2⤵
  - Process spawned unexpected child process
  PID:3808

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\OSxhL.vbs"
  2⤵
  PID:5060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\Documents\OSxhL.vbs

Filesize
602B

MD5
55e8e39c157da3e1cfea6c3ee9549d60

SHA1
dd1a0684032d11110a272fefe323def4e609e5e9

SHA256
e22ee8073fe376fa07b3a690b0b34ffc1b2d725ec36c5905596121009cd31799

SHA512
4c2ec1e18f711dad11c1bdfc6b0139c56f6e7bbe20825514392ff0a4f366af26b22ef16ccd37e293b1c7057349861f7c0d7daed4e54509266a25ea8f36da34a1

Download Submit
memory/1788-13-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-16-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-5-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-7-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-8-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-9-0x00007FFE74E10000-0x00007FFE74E20000-memory.dmp

Filesize
64KB

Download
memory/1788-6-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-1-0x00007FFE76FD0000-0x00007FFE76FE0000-memory.dmp

Filesize
64KB

Download
memory/1788-0-0x00007FFE76FD0000-0x00007FFE76FE0000-memory.dmp

Filesize
64KB

Download
memory/1788-10-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-12-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-3-0x00007FFE76FD0000-0x00007FFE76FE0000-memory.dmp

Filesize
64KB

Download
memory/1788-4-0x00007FFE76FD0000-0x00007FFE76FE0000-memory.dmp

Filesize
64KB

Download
memory/1788-17-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-15-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-18-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-19-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-21-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-20-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-22-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-23-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-14-0x00007FFE74E10000-0x00007FFE74E20000-memory.dmp

Filesize
64KB

Download
memory/1788-11-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download
memory/1788-2-0x00007FFE76FD0000-0x00007FFE76FE0000-memory.dmp

Filesize
64KB

Download
memory/1788-35-0x00007FFEB6F50000-0x00007FFEB7145000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads