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Resubmissions

15/04/2024, 11:39

240415-nshk9sdd73 10

15/04/2024, 11:39

240415-nshahafg41 10

15/04/2024, 11:39

240415-nsgnzadd72 10

15/04/2024, 11:39

240415-nsf3fadd69 10

15/04/2024, 11:39

240415-nsffxadd68 10

10/04/2024, 05:03

240410-fpndcadd29 10

10/04/2024, 05:02

240410-fph4madd28 10

10/04/2024, 05:02

240410-fphsvsge5z 10

10/04/2024, 05:02

240410-fphg4age5y 10

08/02/2023, 19:06

230208-xr3z9aef82 10

Analysis

  • max time kernel
    597s
  • max time network
    597s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/04/2024, 05:03

General

  • Target

    2579be109c1035cb96942951710020a8.exe

  • Size

    147KB

  • MD5

    2579be109c1035cb96942951710020a8

  • SHA1

    6987472967c8ce5e3d5fd6730a9da2964afacd10

  • SHA256

    a0a5ebd512b7685798ac966c0b05415df9eff585a79af11c9ff99d7aa17e2101

  • SHA512

    191ea3d7edc69f1cb9d1ec4967074667c5e1c6b02fdaa8bbc5a4414bf5ca00ccafadc49670c5b3065133915d78e482572545f1d0c8c3382e6a767c1f08a33a21

  • SSDEEP

    3072:9NuSXw/c4JHdNX8PAzCABaxg0r27f8EjQspDNJJAksa:9oSXw/hfNXmAzbYg02Ok

Score
10/10

Malware Config

Extracted

Family

systembc

C2

advertspace10.club:4044

logstat17.club:4044

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 9 IoCs

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

  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2579be109c1035cb96942951710020a8.exe
    "C:\Users\Admin\AppData\Local\Temp\2579be109c1035cb96942951710020a8.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2208
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2E08CC7D-7E7A-4DB3-95BE-8F110C0E8146} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1468
    • C:\ProgramData\lxqk\tggijno.exe
      C:\ProgramData\lxqk\tggijno.exe start2
      2⤵
      • Executes dropped EXE
      PID:1144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\lxqk\tggijno.exe

    Filesize

    147KB

    MD5

    2579be109c1035cb96942951710020a8

    SHA1

    6987472967c8ce5e3d5fd6730a9da2964afacd10

    SHA256

    a0a5ebd512b7685798ac966c0b05415df9eff585a79af11c9ff99d7aa17e2101

    SHA512

    191ea3d7edc69f1cb9d1ec4967074667c5e1c6b02fdaa8bbc5a4414bf5ca00ccafadc49670c5b3065133915d78e482572545f1d0c8c3382e6a767c1f08a33a21

  • memory/1144-30-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1144-29-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1144-28-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1144-22-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1144-18-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1144-16-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-4-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-15-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-9-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-8-0x0000000000450000-0x0000000000484000-memory.dmp

    Filesize

    208KB

  • memory/2208-7-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-0-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-2-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2208-1-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB