Overview

overview

10

Static

static

3

2024-04-26...re.exe

windows7-x64

10

2024-04-26...re.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-04-2024 05:31

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General

  • Target

    2024-04-26_3481d74fb925a37a4230202d034c47e7_bkransomware.exe

  • Size

    529KB

  • MD5

    3481d74fb925a37a4230202d034c47e7

  • SHA1

    1990b4d10371f03246da4d02ba6078c368f2976b

  • SHA256

    f9138f32575e36f9dff9f17530dc5961290824d97d452b52c2018366b726decc

  • SHA512

    be97a2bc09f58a07737423f0b5a69ae3b2a9d383fb55c5089fc5c860edac0344ac158b573d9bbdc0e3e411642b1c0ae0569ff0cb030766450eb02ae533775f3f

  • SSDEEP

    6144:fYrIOXsqmWzJrdc6GJRQU7GUA9PRWLiFSbE56FORF3Xl8D+qX4pRnP:d2lWRP7hA9PRWg9XcIpRP

Score
10/10
salitybackdoorevasiontrojanupx

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
    evasion
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

    backdoorsality
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 6 IoCs
    evasiontrojan
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 2 IoCs
  • UPX dump on OEP (original entry point) 3 IoCs
  • UPX packed file 2 IoCs

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

    upx
  • Windows security modification 2 TTPs 7 IoCs
    evasiontrojan
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Drops file in Windows directory 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-26_3481d74fb925a37a4230202d034c47e7_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-26_3481d74fb925a37a4230202d034c47e7_bkransomware.exe"
    1⤵
    • Modifies firewall policy service
    • UAC bypass
    • Windows security bypass
    • Windows security modification
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • System policy modification
    PID:2072

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Modify Registry

5
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/2072-0-0x0000000000400000-0x000000000048A000-memory.dmp
    Filesize

    552KB

    Download
  • memory/2072-2-0x0000000001F10000-0x0000000002F9E000-memory.dmp
    Filesize

    16.6MB

    Download
  • memory/2072-4-0x0000000001F10000-0x0000000002F9E000-memory.dmp
    Filesize

    16.6MB

    Download
  • memory/2072-6-0x0000000000400000-0x000000000048A000-memory.dmp
    Filesize

    552KB

    Download