Analysis

  • max time kernel
    33s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 02:27

General

  • Target

    3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe

  • Size

    4.2MB

  • MD5

    4d299919345a7b638eefedf1d47ec7ba

  • SHA1

    0b0bc6c60c9d6814d61a7d38a1e94b16e62e01e8

  • SHA256

    3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5

  • SHA512

    a317ecdedfa6d0097b071995bfd4aa71fd545c1f39284413f52faff19061749aaceb010ed34a69e44d12c105379463fac3f88e1b39d341144129ad16d2fafb9f

  • SSDEEP

    98304:dIBSGdaGj0ESHa9xfyjII+YJ372FiCLIHkkXr0EExD:dV60g9xfymNY0X

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 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.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe
    "C:\Users\Admin\AppData\Local\Temp\3fca11b830bfc01388d5674ce880aa887c9218ef22b1b64cf58d7d1a6951d2d5.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1192
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1796

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

3
T1112

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:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.dat
    Filesize

    3KB

    MD5

    0970d13b5541ca4ed15053af1b283d9d

    SHA1

    724909853c120ba58d3f7bd86e86425fdb5ad777

    SHA256

    60bee2be52d5f8ff0315473b9da58308e63956a39e41cd96f21ee11b5715b2b1

    SHA512

    f99741cd9b5d64d8cdfe24906dc917647f09411e1d94b795d6662eeb60167eb35af5bf74301398f5d85328f79066951ed8c1f75b1b95f1d7887475970bb91fc6

  • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.tlb
    Filesize

    3KB

    MD5

    0d2aeb4f00b6579ca162c9a79f104dba

    SHA1

    fbc3019106417014ba01e5703e2729496feb6c39

    SHA256

    4cbe20901caaa5ec47de0c8e5d5333d219bbc51dadf3ad02083b21a2350fd283

    SHA512

    083c3b7ec8a01d78880349c2de635e70bc45db1523c6e9962f4d687bd15705b28a4001afd48e7be60e34ab7c2a8bf62ff1b91404c38202cfb51fd7df449e124e

  • C:\Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
    Filesize

    874KB

    MD5

    1dc66c50cea34da91b5e917e0157ff0d

    SHA1

    c7ddb2f9d46f1836d7368434db0131619f5e7c08

    SHA256

    19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

    SHA512

    48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

  • \Program Files (x86)\PriceLess\fNzWUqXQrvalaA.dll
    Filesize

    744KB

    MD5

    211ab5ec38ee0ed680e1b90b37916d5b

    SHA1

    5a8f6d8b08d6ebffd28608766fe73660fe00a781

    SHA256

    c5de64a026df3c1275ea3e50b3565b8cfc4d17b09eb958a23bcc29557589b409

    SHA512

    451ee835b2caed20a57529059a9e434b8e9139c45a579cc3d6693c1af5b516d3580abcd94370e916ff9a11e5cb859cee4a1dbbab943909d2a77fbc68a200a125

  • \Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
    Filesize

    874KB

    MD5

    1dc66c50cea34da91b5e917e0157ff0d

    SHA1

    c7ddb2f9d46f1836d7368434db0131619f5e7c08

    SHA256

    19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

    SHA512

    48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

  • \Program Files (x86)\PriceLess\fNzWUqXQrvalaA.x64.dll
    Filesize

    874KB

    MD5

    1dc66c50cea34da91b5e917e0157ff0d

    SHA1

    c7ddb2f9d46f1836d7368434db0131619f5e7c08

    SHA256

    19627221bde386227801b307cb903837ce957f1aa6194ec8bfc7b180434f41d0

    SHA512

    48e4c5a2603ba68aaa87d03fc1fbd5c9c672c3e3b9c50178a8f00e6296ae8d14ee6bf043c6bdca49f728f1ebda156007902af628af0a41760de22c8204453fef

  • memory/948-61-0x0000000000000000-mapping.dmp
  • memory/1192-54-0x0000000076701000-0x0000000076703000-memory.dmp
    Filesize

    8KB

  • memory/1192-55-0x0000000002A50000-0x0000000002B1B000-memory.dmp
    Filesize

    812KB

  • memory/1796-65-0x0000000000000000-mapping.dmp
  • memory/1796-66-0x000007FEFC391000-0x000007FEFC393000-memory.dmp
    Filesize

    8KB