Overview

overview

10

Static

static

10

7277049899...c4.exe

windows7-x64

10

7277049899...c4.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    136s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 16:31

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General

  • Target

    727704989958642937c6bd8a84903b74a1fc1841e791c239a055573b0fe628c4.exe

  • Size

    47KB

  • MD5

    c8d7a1fbf24efd3a9ef031b81a4fbdcb

  • SHA1

    1147ff4e42c33ce3795422d3309f83e3460dba6b

  • SHA256

    727704989958642937c6bd8a84903b74a1fc1841e791c239a055573b0fe628c4

  • SHA512

    b6c5415e31aef5acd04ccb969916f2184232bcbcca9a5f691eb4cb79e9f40cba8e3ca53d55cba072e34165b1e8ad55564f2121540d178a76165d866a8279bd6a

  • SSDEEP

    768:YuW01Towx/9WU9mp+Xmo2qzQh+JRVLiCPIsAKjILU0bu0kv/TRTXfuO6fcIuyvBQ:YuW01ToqEO2MLliLsAKjEbu0a/TRbWOt

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:4444

70.104.186.131:6606

70.104.186.131:7707

70.104.186.131:8808

70.104.186.131:4444
Mutex

P7nH82MyXxoq

Attributes
  • delay

    3

  • install

    true

  • install_file

    windowsappsec.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\727704989958642937c6bd8a84903b74a1fc1841e791c239a055573b0fe628c4.exe
    "C:\Users\Admin\AppData\Local\Temp\727704989958642937c6bd8a84903b74a1fc1841e791c239a055573b0fe628c4.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windowsappsec" /tr '"C:\Users\Admin\AppData\Roaming\windowsappsec.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2076
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "windowsappsec" /tr '"C:\Users\Admin\AppData\Roaming\windowsappsec.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1900
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD060.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2904
      • C:\Users\Admin\AppData\Roaming\windowsappsec.exe
        "C:\Users\Admin\AppData\Roaming\windowsappsec.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4540

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD060.tmp.bat
    Filesize

    157B

    MD5

    7c659f7b80793ecd2e1041d6b72f5e3c

    SHA1

    00ed133e8dd29630402db98b2807c2438fb587fb

    SHA256

    389728734658433d54d1334f15180096102e979f4627a03c43d00a1746615506

    SHA512

    fb6bb484c7bc6c2e883b7cdae2130d505dda8d97a65c5b241737c35a7ef76dfab54fd9443b9f8cca67f9f4b424b746b1364244a8e41cce6404339e82e1b6a231

    Download Submit

  • C:\Users\Admin\AppData\Roaming\windowsappsec.exe
    Filesize

    47KB

    MD5

    c8d7a1fbf24efd3a9ef031b81a4fbdcb

    SHA1

    1147ff4e42c33ce3795422d3309f83e3460dba6b

    SHA256

    727704989958642937c6bd8a84903b74a1fc1841e791c239a055573b0fe628c4

    SHA512

    b6c5415e31aef5acd04ccb969916f2184232bcbcca9a5f691eb4cb79e9f40cba8e3ca53d55cba072e34165b1e8ad55564f2121540d178a76165d866a8279bd6a

    Download Submit

  • memory/1068-0-0x000000007508E000-0x000000007508F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1068-1-0x00000000008B0000-0x00000000008C2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1068-2-0x0000000075080000-0x0000000075830000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/1068-3-0x0000000005250000-0x00000000052B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/1068-4-0x0000000005700000-0x000000000579C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/1068-10-0x0000000075080000-0x0000000075830000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4540-14-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4540-15-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

    Download