Analysis

  • max time kernel
    219s
  • max time network
    241s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/06/2022, 02:42

General

  • Target

    8860956c8e44c46a67a4325034d4c612aae7721c928668f5148e4a1bc5bf8779.exe

  • Size

    4.1MB

  • MD5

    28fc393e1c89bb2945827aebf566fa31

  • SHA1

    851fd5cb4e98a5fc9e978d6d05287715eb74a9e8

  • SHA256

    8860956c8e44c46a67a4325034d4c612aae7721c928668f5148e4a1bc5bf8779

  • SHA512

    a58f626e831f4f1e906fad432217ac271a7818ae80f08713198b57103ce0fcd1c0a46ac6c961bc2408394ce42271fec10dd4c620dc0c19504068db3a1aa14f2e

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8860956c8e44c46a67a4325034d4c612aae7721c928668f5148e4a1bc5bf8779.exe
    "C:\Users\Admin\AppData\Local\Temp\8860956c8e44c46a67a4325034d4c612aae7721c928668f5148e4a1bc5bf8779.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Program Files (x86)\Busa\Setup.exe
      "C:\Program Files (x86)\Busa\Setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:1220
    • C:\Program Files (x86)\Busa\SetupX.exe
      "C:\Program Files (x86)\Busa\SetupX.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Busa\Setup.exe

    Filesize

    2.2MB

    MD5

    3e2939633756d5eafd71201a32b971ed

    SHA1

    1c9b05c647de8ba96ede7cd9054b13e8b6be7725

    SHA256

    c955bf4ec24e5b286fcc12fb9954d08f6a4bf323b5133ec268b37f68d01b8e6a

    SHA512

    96e06d5972bd6ad8d836a18155c63f2022a4c626b5229c84755bc864ada567bfb5e4e3a4d6f4c63826c5ae3ceec6932f6a9b5f24e7649eb5424dbf8a85a5a954

  • C:\Program Files (x86)\Busa\Setup.exe

    Filesize

    2.2MB

    MD5

    3e2939633756d5eafd71201a32b971ed

    SHA1

    1c9b05c647de8ba96ede7cd9054b13e8b6be7725

    SHA256

    c955bf4ec24e5b286fcc12fb9954d08f6a4bf323b5133ec268b37f68d01b8e6a

    SHA512

    96e06d5972bd6ad8d836a18155c63f2022a4c626b5229c84755bc864ada567bfb5e4e3a4d6f4c63826c5ae3ceec6932f6a9b5f24e7649eb5424dbf8a85a5a954

  • C:\Program Files (x86)\Busa\SetupX.exe

    Filesize

    2.0MB

    MD5

    a4900d9fe88f8ac892c383486088288c

    SHA1

    28c089bf25992b270a4e7039bc880ba520186976

    SHA256

    19e5e1df78d2545c13f25dfa94c33011822693461bba6c565d585a55b72343da

    SHA512

    2c3c17183ce2675e2eb729b7e8cd4a879f45c81dea5dbc918ad7a3f14ee81b0fc4872ed9ad23e0700412ed192750a0bc9910a9948d0103b5b592ad644d271711

  • C:\Program Files (x86)\Busa\SetupX.exe

    Filesize

    2.0MB

    MD5

    a4900d9fe88f8ac892c383486088288c

    SHA1

    28c089bf25992b270a4e7039bc880ba520186976

    SHA256

    19e5e1df78d2545c13f25dfa94c33011822693461bba6c565d585a55b72343da

    SHA512

    2c3c17183ce2675e2eb729b7e8cd4a879f45c81dea5dbc918ad7a3f14ee81b0fc4872ed9ad23e0700412ed192750a0bc9910a9948d0103b5b592ad644d271711

  • \Program Files (x86)\Busa\Setup.exe

    Filesize

    2.2MB

    MD5

    3e2939633756d5eafd71201a32b971ed

    SHA1

    1c9b05c647de8ba96ede7cd9054b13e8b6be7725

    SHA256

    c955bf4ec24e5b286fcc12fb9954d08f6a4bf323b5133ec268b37f68d01b8e6a

    SHA512

    96e06d5972bd6ad8d836a18155c63f2022a4c626b5229c84755bc864ada567bfb5e4e3a4d6f4c63826c5ae3ceec6932f6a9b5f24e7649eb5424dbf8a85a5a954

  • \Program Files (x86)\Busa\Setup.exe

    Filesize

    2.2MB

    MD5

    3e2939633756d5eafd71201a32b971ed

    SHA1

    1c9b05c647de8ba96ede7cd9054b13e8b6be7725

    SHA256

    c955bf4ec24e5b286fcc12fb9954d08f6a4bf323b5133ec268b37f68d01b8e6a

    SHA512

    96e06d5972bd6ad8d836a18155c63f2022a4c626b5229c84755bc864ada567bfb5e4e3a4d6f4c63826c5ae3ceec6932f6a9b5f24e7649eb5424dbf8a85a5a954

  • \Program Files (x86)\Busa\Setup.exe

    Filesize

    2.2MB

    MD5

    3e2939633756d5eafd71201a32b971ed

    SHA1

    1c9b05c647de8ba96ede7cd9054b13e8b6be7725

    SHA256

    c955bf4ec24e5b286fcc12fb9954d08f6a4bf323b5133ec268b37f68d01b8e6a

    SHA512

    96e06d5972bd6ad8d836a18155c63f2022a4c626b5229c84755bc864ada567bfb5e4e3a4d6f4c63826c5ae3ceec6932f6a9b5f24e7649eb5424dbf8a85a5a954

  • \Program Files (x86)\Busa\SetupX.exe

    Filesize

    2.0MB

    MD5

    a4900d9fe88f8ac892c383486088288c

    SHA1

    28c089bf25992b270a4e7039bc880ba520186976

    SHA256

    19e5e1df78d2545c13f25dfa94c33011822693461bba6c565d585a55b72343da

    SHA512

    2c3c17183ce2675e2eb729b7e8cd4a879f45c81dea5dbc918ad7a3f14ee81b0fc4872ed9ad23e0700412ed192750a0bc9910a9948d0103b5b592ad644d271711

  • \Program Files (x86)\Busa\SetupX.exe

    Filesize

    2.0MB

    MD5

    a4900d9fe88f8ac892c383486088288c

    SHA1

    28c089bf25992b270a4e7039bc880ba520186976

    SHA256

    19e5e1df78d2545c13f25dfa94c33011822693461bba6c565d585a55b72343da

    SHA512

    2c3c17183ce2675e2eb729b7e8cd4a879f45c81dea5dbc918ad7a3f14ee81b0fc4872ed9ad23e0700412ed192750a0bc9910a9948d0103b5b592ad644d271711

  • \Program Files (x86)\Busa\SetupX.exe

    Filesize

    2.0MB

    MD5

    a4900d9fe88f8ac892c383486088288c

    SHA1

    28c089bf25992b270a4e7039bc880ba520186976

    SHA256

    19e5e1df78d2545c13f25dfa94c33011822693461bba6c565d585a55b72343da

    SHA512

    2c3c17183ce2675e2eb729b7e8cd4a879f45c81dea5dbc918ad7a3f14ee81b0fc4872ed9ad23e0700412ed192750a0bc9910a9948d0103b5b592ad644d271711

  • \Users\Admin\AppData\Local\Temp\nso3F05.tmp\UAC.dll

    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • memory/1220-74-0x0000000000FB0000-0x00000000014F8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-83-0x0000000000A60000-0x0000000000FA8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-89-0x0000000074331000-0x0000000074333000-memory.dmp

    Filesize

    8KB

  • memory/1220-72-0x0000000000A60000-0x0000000000FA8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-73-0x0000000000FB0000-0x00000000014F8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-87-0x0000000000A60000-0x0000000000FA8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-84-0x0000000000FB0000-0x00000000014F8000-memory.dmp

    Filesize

    5.3MB

  • memory/1220-77-0x0000000077B80000-0x0000000077D00000-memory.dmp

    Filesize

    1.5MB

  • memory/1220-78-0x00000000748F1000-0x00000000748F3000-memory.dmp

    Filesize

    8KB

  • memory/1220-79-0x0000000000A60000-0x0000000000FA8000-memory.dmp

    Filesize

    5.3MB

  • memory/1680-57-0x00000000026B0000-0x0000000002BF8000-memory.dmp

    Filesize

    5.3MB

  • memory/1680-54-0x00000000765C1000-0x00000000765C3000-memory.dmp

    Filesize

    8KB

  • memory/2000-80-0x0000000077B80000-0x0000000077D00000-memory.dmp

    Filesize

    1.5MB

  • memory/2000-81-0x0000000000400000-0x0000000000918000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-82-0x00000000012F0000-0x0000000001808000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-76-0x0000000000400000-0x0000000000918000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-85-0x00000000012F0000-0x0000000001808000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-86-0x0000000000400000-0x0000000000918000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-75-0x00000000012F0000-0x0000000001808000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-88-0x0000000000400000-0x0000000000918000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-71-0x00000000012F0000-0x0000000001808000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-90-0x0000000000400000-0x0000000000918000-memory.dmp

    Filesize

    5.1MB

  • memory/2000-91-0x0000000077B80000-0x0000000077D00000-memory.dmp

    Filesize

    1.5MB