Analysis

  • max time kernel
    133s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 18:34

General

  • Target

    b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe

  • Size

    392KB

  • MD5

    5a1e2e8b2fca5a40ab426bd3f533b3f2

  • SHA1

    7f73f23a7b16aa3c8262d76fc30b1e514cfbe7de

  • SHA256

    b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805

  • SHA512

    514e32472eac1ebdf963136e1d80f249e4c097a4926e362697d005f3100add5afd7f76a4e1b59b321800eabe5ab42f0261b318939d5c3d63f60e4ed18fc9d9e2

  • SSDEEP

    6144:Pu++THBU7JnFjlJlQ8TM4r0zsaBuxtj/cjAOvP99qqDLuEnIorHSzhl6GkkakJL:9+TIvSGrOsaBuPcjwqnuqI7LaQL

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
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe
    "C:\Users\Admin\AppData\Local\Temp\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe"
      2⤵
      • Modifies firewall policy service
      • UAC bypass
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Checks whether UAC is enabled
      • System policy modification
      PID:1520

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Change Default File Association

1
T1042

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

6
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe
    Filesize

    352KB

    MD5

    9e569f1233a9742a0562c3ac17932710

    SHA1

    d5adb4084a72f3d535042aff65ad15933963fa8a

    SHA256

    004d3f22807c96b01745ac4e23eb6039b7318a8aaca5c12cab9bd6a087244042

    SHA512

    078cf2241e4e821cd7c30931efc74a965c553314a61a8b078190848fd6d6ef5be33dc3e79e27b73069d6b1560d62d8deeaf2a24d4f0c5e27ba79f4f6210e3f81

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe
    Filesize

    352KB

    MD5

    9e569f1233a9742a0562c3ac17932710

    SHA1

    d5adb4084a72f3d535042aff65ad15933963fa8a

    SHA256

    004d3f22807c96b01745ac4e23eb6039b7318a8aaca5c12cab9bd6a087244042

    SHA512

    078cf2241e4e821cd7c30931efc74a965c553314a61a8b078190848fd6d6ef5be33dc3e79e27b73069d6b1560d62d8deeaf2a24d4f0c5e27ba79f4f6210e3f81

  • \Users\Admin\AppData\Local\Temp\3582-490\b9c417d03289754578824f61d7788c8e1967610d29c9a8a63a53fc22fa366805.exe
    Filesize

    352KB

    MD5

    9e569f1233a9742a0562c3ac17932710

    SHA1

    d5adb4084a72f3d535042aff65ad15933963fa8a

    SHA256

    004d3f22807c96b01745ac4e23eb6039b7318a8aaca5c12cab9bd6a087244042

    SHA512

    078cf2241e4e821cd7c30931efc74a965c553314a61a8b078190848fd6d6ef5be33dc3e79e27b73069d6b1560d62d8deeaf2a24d4f0c5e27ba79f4f6210e3f81

  • memory/960-54-0x0000000075141000-0x0000000075143000-memory.dmp
    Filesize

    8KB

  • memory/960-63-0x0000000002730000-0x00000000027A9000-memory.dmp
    Filesize

    484KB

  • memory/1520-57-0x0000000000000000-mapping.dmp
  • memory/1520-60-0x0000000001FF0000-0x000000000307E000-memory.dmp
    Filesize

    16.6MB

  • memory/1520-61-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1520-62-0x0000000001FF0000-0x000000000307E000-memory.dmp
    Filesize

    16.6MB