Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-04-2024 11:34

General

  • Target

    0329392630eee094482ce54d45eb6e4d_JaffaCakes118.exe

  • Size

    782KB

  • MD5

    0329392630eee094482ce54d45eb6e4d

  • SHA1

    d101266680b49f98fa9bfd1f1a7428f8ec1ec1df

  • SHA256

    d59d14279f8a1b9887a83a2ea99c6e161c94774f3603e46eeb52b11417c753ab

  • SHA512

    9ea5bea90dff0f446181da044b0fb689f08702e3f25af6a70ee65f767659b4b7edb87a1e329e91559b572190b19d4e3a03ed7e1decc19a050aa2198053a68e99

  • SSDEEP

    12288:zacwfySyzqwAZj4ziHgkZ0tCNDnTnts6uPmy0n5u8cuWz:+t6ZqPmi2tCN

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

snopper13.ddns.net:1996

185.208.211.17:1996

Mutex

639667a7-ccc3-45df-9155-94515c6e197f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.208.211.17

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-02-17T08:55:58.187172536Z

  • 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

    1996

  • 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

    639667a7-ccc3-45df-9155-94515c6e197f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    snopper13.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 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 5 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\0329392630eee094482ce54d45eb6e4d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0329392630eee094482ce54d45eb6e4d_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3976
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe" /logtoconsole=false /logfile= /u "C:\Users\Admin\AppData\Local\Temp\0329392630eee094482ce54d45eb6e4d_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe"
        3⤵
        • Adds Run key to start application
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3916
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBC0C.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:892
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBC5C.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:2948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\installutil.exe.log

    Filesize

    810B

    MD5

    7a4a84f4d2df1fe011638038702dad89

    SHA1

    64e9856d95b2064ff51e1c77819c818e6e5b3291

    SHA256

    cfd5734d90e6889355768ae5a723076000d88af2e5b6b435d55fa5bfa3e29590

    SHA512

    cbe9f7724806d161e70a161525c89199e10e6f38ad425533defaa1e02a12bf2cf28cba6788ed68e446cbd4286541e341b55c40133c134f9fcf94cae79b34092d

  • C:\Users\Admin\AppData\Local\Temp\tmpBC0C.tmp

    Filesize

    1KB

    MD5

    776580d2028b74ed89bb21146482bdff

    SHA1

    d1a45290dedde63d8539a2fc8af866b430238bc7

    SHA256

    fbad359469fc6aefb5695d01974f4edf50528f51f80d57b9eb0d8f2f81033cc0

    SHA512

    de084f473db26ce159b639b02e7ffa263ae5b6c4c1da9f6932676dae4a6c65f082b1bcac673c45c2e2b84caa06d1860ea6f0545b81fd7b3e4f8fe5e802a160d3

  • C:\Users\Admin\AppData\Local\Temp\tmpBC5C.tmp

    Filesize

    1KB

    MD5

    93d357e6194c8eb8d0616a9f592cc4bf

    SHA1

    5cc3a3d95d82cb88f65cb6dc6c188595fa272808

    SHA256

    a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

    SHA512

    4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

  • memory/3908-9-0x0000000001780000-0x0000000001790000-memory.dmp

    Filesize

    64KB

  • memory/3908-6-0x0000000001780000-0x0000000001790000-memory.dmp

    Filesize

    64KB

  • memory/3908-5-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3908-7-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3908-8-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3908-14-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3908-10-0x0000000001780000-0x0000000001790000-memory.dmp

    Filesize

    64KB

  • memory/3916-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3916-16-0x0000000001030000-0x0000000001040000-memory.dmp

    Filesize

    64KB

  • memory/3916-15-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3916-24-0x0000000074AE0000-0x0000000075091000-memory.dmp

    Filesize

    5.7MB

  • memory/3916-25-0x0000000001030000-0x0000000001040000-memory.dmp

    Filesize

    64KB

  • memory/3976-4-0x0000000074A40000-0x0000000074FF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3976-0-0x0000000074A40000-0x0000000074FF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3976-2-0x0000000074A40000-0x0000000074FF1000-memory.dmp

    Filesize

    5.7MB

  • memory/3976-1-0x0000000000820000-0x0000000000830000-memory.dmp

    Filesize

    64KB