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Overview

overview

10

Static

static

1

document_1....17.js

windows7-x64

10

document_1....17.js

windows10-2004-x64

9

Sharing

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General

  • Target

    JaffaCakes118_64687b66bc457df82e01d87cdddfe5c0

  • Size

    432KB

  • Sample

    250102-mg6y2szrdn

  • MD5

    64687b66bc457df82e01d87cdddfe5c0

  • SHA1

    f18bfe50e1a60ac74fe750b9ea35bfeb53864c9c

  • SHA256

    b44b5152e35c72a17a8de9fa89736dacd41edda89139ecef2d135f2aebae497a

  • SHA512

    493985f1b23149297ca66edb7bb7e7c1d1e59054172e1085d236d866669dbdcf58d94c8431b9b61b6b11af8a3d9f73957a15adbf0492df6cfa88c07f36fa5796

  • SSDEEP

    6144:zuVhdmC/EKOF3l6KBxBYgyff+Yv6QatbzjI46mRFvIGapTNFheQ5Y57c2gXMA/mg:gdgF/YjH+yhatbnIoiGE7Y2FXXGzw

Score
10/10
crypvaultdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealerupx

Malware Config

Targets

    • Target

      document_1543_CREDIT_#346875_17.01.17.js

    • Size

      603KB

    • MD5

      185fba63c25db9d2d63cd4ce519c35b7

    • SHA1

      c4d034ede11dcd493ee28f7fc632a4795d7bf665

    • SHA256

      728b5196ba9efbbc8c422a5aabe02f4fdb5de5e0bdcd8b544f8b95e8b9c259d6

    • SHA512

      a269dd1e57dd5b5b0096e403db98ddd0baff81397d9260c6b7d78751c034325af9a6784fe9025b4c5502c6ebc9dcb0a2627143bc4726fc0307846a38bd928bdf

    • SSDEEP

      12288:qdT6dsvMk7pGWeGG8txvgiaOFbvZe1LfuA/fn5Pq/b:8BGWeRwvcOFbhYLR/f5ub

    Score
    10/10
    crypvaultdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealerupx

    • CrypVault

      Ransomware family which makes encrypted files look like they have been quarantined by AV.

      ransomwarecrypvault

    • Crypvault family

      crypvault

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Overwrites deleted data with Cipher tool

      Cipher is a Windows tool which be used to securely wipe deallocated HDD space, preventing recovery of deleted data.

      ransomware

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Enumerates processes with tasklist

      discovery

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

JavaScript

1
T1059.007

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks

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