Analysis

  • max time kernel
    151s
  • max time network
    92s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2022 20:17

General

  • Target

    a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782.exe

  • Size

    759KB

  • MD5

    7b5e4a417463943030ed84d16bdffc80

  • SHA1

    3e2b57bdd296e786aa1cc7cc134d2156abcbd731

  • SHA256

    a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782

  • SHA512

    9fca612c056977ac1539359adceaa8aef8350876b27e420d2600b2a8347b52d51819db2bcb8204bf4063cff99017a5faaf86207b2a988fb0bb04101e0bfcc9a5

  • SSDEEP

    12288:qM3iXBPCO36urpV5HODRH0xh9W1gx7K8hiz1v8hvwxUj1ShwONxyibDwd:oqEdTE0X9WSxG8IZv8hI21ShFNxyoM

Malware Config

Extracted

Family

darkcomet

Botnet

MusicAGO

C2

mantrust.noip.me:3013

Mutex

DC_MUTEX-80DX6FJ

Attributes
  • gencode

    5GYC98Amy0Ur

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Obfuscated with Agile.Net obfuscator 6 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782.exe
    "C:\Users\Admin\AppData\Local\Temp\a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1136
    • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\SamSs.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft FxCop\SamSs.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1728
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:768
        • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          PID:2028

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\SamSs.exe
    Filesize

    759KB

    MD5

    7b5e4a417463943030ed84d16bdffc80

    SHA1

    3e2b57bdd296e786aa1cc7cc134d2156abcbd731

    SHA256

    a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782

    SHA512

    9fca612c056977ac1539359adceaa8aef8350876b27e420d2600b2a8347b52d51819db2bcb8204bf4063cff99017a5faaf86207b2a988fb0bb04101e0bfcc9a5

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\SamSs.exe
    Filesize

    759KB

    MD5

    7b5e4a417463943030ed84d16bdffc80

    SHA1

    3e2b57bdd296e786aa1cc7cc134d2156abcbd731

    SHA256

    a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782

    SHA512

    9fca612c056977ac1539359adceaa8aef8350876b27e420d2600b2a8347b52d51819db2bcb8204bf4063cff99017a5faaf86207b2a988fb0bb04101e0bfcc9a5

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • C:\Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • \Users\Admin\AppData\Roaming\Microsoft FxCop\SamSs.exe
    Filesize

    759KB

    MD5

    7b5e4a417463943030ed84d16bdffc80

    SHA1

    3e2b57bdd296e786aa1cc7cc134d2156abcbd731

    SHA256

    a2f302ed3f2ca2dff3be4ca2ae02c642b94a54b0707546182acb41b2a2367782

    SHA512

    9fca612c056977ac1539359adceaa8aef8350876b27e420d2600b2a8347b52d51819db2bcb8204bf4063cff99017a5faaf86207b2a988fb0bb04101e0bfcc9a5

  • \Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • \Users\Admin\AppData\Roaming\Microsoft FxCop\wmiApSrv.exe
    Filesize

    18KB

    MD5

    97235ac11c44acda447e9b8b393ae1da

    SHA1

    370e8a69c78e677dfccc40aceb7238cd8b8596eb

    SHA256

    10017309dab7a06278fdac82ee487e63b2f6ea4ec1309e2e31928d1323885698

    SHA512

    ff44929eaed0ef767122f065071c1030f5987835e17fbe516898c724b4beffee9f827e3378b552480f07629aa76dc1a1370b8ede5edb8f6bdb7b22245d044f0b

  • memory/768-118-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/768-111-0x000000000048F888-mapping.dmp
  • memory/1136-83-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-62-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-73-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-71-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-57-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-69-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-67-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-58-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-81-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-60-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-84-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-91-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-66-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-64-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/1136-72-0x000000000048F888-mapping.dmp
  • memory/1728-93-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1728-88-0x0000000000000000-mapping.dmp
  • memory/1728-92-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1760-54-0x0000000076181000-0x0000000076183000-memory.dmp
    Filesize

    8KB

  • memory/1760-94-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1760-56-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1760-55-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-95-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-85-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-80-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/1768-76-0x0000000000000000-mapping.dmp
  • memory/2028-119-0x0000000000000000-mapping.dmp
  • memory/2028-123-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-124-0x0000000074FB0000-0x000000007555B000-memory.dmp
    Filesize

    5.7MB