Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    19-05-2024 07:48

General

  • Target

    595049ee2c75b23f406a9346ba07d610_JaffaCakes118.exe

  • Size

    449KB

  • MD5

    595049ee2c75b23f406a9346ba07d610

  • SHA1

    4bebfda40f456ac4f5bac4cc6182bd7d2b2c7fc3

  • SHA256

    753a7493be05ba01034f3c861ff1805a4336616e84469f40800d876dcba3381a

  • SHA512

    5ab4634be3f068df5270f6692a778aca4906fd307cbdfed7f5b053c16a0ae46503e361266326ffce7d7934feb62c25ac3b79b020481e3a793233b895ef0d6611

  • SSDEEP

    12288:L5sEGlnkHm7TJrW9c+0iPqsmxCL39Xmw58G:LZGBk2y9GUqaAG

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

hustlerman.ddns.net:1603

Mutex

19fa7d5c-5cc7-4bcc-9bd7-e59cdf532b4a

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-07-06T23:58:17.644795036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1603

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    19fa7d5c-5cc7-4bcc-9bd7-e59cdf532b4a

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    hustlerman.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\595049ee2c75b23f406a9346ba07d610_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\595049ee2c75b23f406a9346ba07d610_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UZchfTEEpNCg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE80E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2480
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE9D2.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2504

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE80E.tmp
    Filesize

    1KB

    MD5

    d7935446b1d570ec213c0bc1e8b09d3d

    SHA1

    818bfec909b19237f4f080a913fe9e106ba66dcd

    SHA256

    26a655657fd55fcadb3c0354c362868c1c713240c75596e5bafba4d5f2928177

    SHA512

    2b7c13d6302f0f1a1d17f0b496011478dfa5a7462efe7d2977946a9ff5a00543778a81ec6d4f2ad22316118057da05b89619c282ef71361598223095ab065eee

  • C:\Users\Admin\AppData\Local\Temp\tmpE9D2.tmp
    Filesize

    1KB

    MD5

    ae766004c0d8792953bafffe8f6a2e3b

    SHA1

    14b12f27543a401e2fe0af8052e116cab0032426

    SHA256

    1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

    SHA512

    e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

  • memory/1204-0-0x0000000074B11000-0x0000000074B12000-memory.dmp
    Filesize

    4KB

  • memory/1204-1-0x0000000074B10000-0x00000000750BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1204-2-0x0000000074B10000-0x00000000750BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1204-3-0x0000000074B10000-0x00000000750BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1204-4-0x0000000074B10000-0x00000000750BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1204-24-0x0000000074B10000-0x00000000750BB000-memory.dmp
    Filesize

    5.7MB

  • memory/2500-21-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2500-16-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-14-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-10-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-12-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-23-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2500-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB