Analysis

  • max time kernel
    132s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08-05-2021 13:06

General

  • Target

    cvhost.exe

  • Size

    6.1MB

  • MD5

    ca3a564e2dbaa4c15296d982286f9e19

  • SHA1

    e1aaabaf8e2e0e1709b82bcc9427b36465da2ce1

  • SHA256

    41b87704118429cf10614b868b6a0ebc3f3d85d2b154ee83101f01661636b4ee

  • SHA512

    29ab853dc5304ff69e48e65f8babe3858147a7d81035aba9a2aa2e12ae49ff7fea070ea45d8554e05fd4a9ccd72816e5605f7c42faa5810d113ddd7d2af0b1e0

Malware Config

Extracted

Family

danabot

Version

1827

Botnet

3

C2

192.210.198.12:443

192.236.147.83:443

184.95.51.175:443

184.95.51.183:443

Attributes
  • embedded_hash

    AEF96B4D339B580ABB737F203C2D0F52

rsa_pubkey.plain
rsa_pubkey.plain

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Blocklisted process makes network request 4 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cvhost.exe
    "C:\Users\Admin\AppData\Local\Temp\cvhost.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:488
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\CVHOST~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\cvhost.exe
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\CVHOST~1.DLL,slNfZI0=
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:644

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CVHOST~1.DLL
    MD5

    5b307ca1c9b7f71bb1a03d1c44692812

    SHA1

    eff329a067a4c568779aa420c44471e1f79dce3b

    SHA256

    beac9d6fefce24dd78c00fb20bba4b9f06840161d9ed4fb7bc3cac19640c2175

    SHA512

    b695237385e4024e290c8d346eb707326a977ea2ad1daf8d689b8ff7227d1aa9ad566fdbee9b6820c982f86141ce157bb203f0f25e692162fba49bde3c1c2d7a

  • \Users\Admin\AppData\Local\Temp\CVHOST~1.DLL
    MD5

    5b307ca1c9b7f71bb1a03d1c44692812

    SHA1

    eff329a067a4c568779aa420c44471e1f79dce3b

    SHA256

    beac9d6fefce24dd78c00fb20bba4b9f06840161d9ed4fb7bc3cac19640c2175

    SHA512

    b695237385e4024e290c8d346eb707326a977ea2ad1daf8d689b8ff7227d1aa9ad566fdbee9b6820c982f86141ce157bb203f0f25e692162fba49bde3c1c2d7a

  • \Users\Admin\AppData\Local\Temp\CVHOST~1.DLL
    MD5

    5b307ca1c9b7f71bb1a03d1c44692812

    SHA1

    eff329a067a4c568779aa420c44471e1f79dce3b

    SHA256

    beac9d6fefce24dd78c00fb20bba4b9f06840161d9ed4fb7bc3cac19640c2175

    SHA512

    b695237385e4024e290c8d346eb707326a977ea2ad1daf8d689b8ff7227d1aa9ad566fdbee9b6820c982f86141ce157bb203f0f25e692162fba49bde3c1c2d7a

  • memory/488-114-0x00000000066F0000-0x0000000006DF7000-memory.dmp
    Filesize

    7.0MB

  • memory/488-115-0x0000000000400000-0x00000000043E0000-memory.dmp
    Filesize

    63.9MB

  • memory/488-116-0x0000000005FE0000-0x0000000005FE1000-memory.dmp
    Filesize

    4KB

  • memory/644-122-0x0000000000000000-mapping.dmp
  • memory/644-126-0x0000000004F51000-0x00000000055AF000-memory.dmp
    Filesize

    6.4MB

  • memory/2240-117-0x0000000000000000-mapping.dmp
  • memory/2240-124-0x0000000004FA1000-0x00000000055FF000-memory.dmp
    Filesize

    6.4MB

  • memory/2240-128-0x0000000002FC0000-0x0000000002FC1000-memory.dmp
    Filesize

    4KB