Analysis

  • max time kernel
    43s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 21:14

General

  • Target

    a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.exe

  • Size

    4.3MB

  • MD5

    ccdc0150b7d3ad18eeb151d8071016a3

  • SHA1

    33ac9cae63bd68ee1d96d19bdf20c9a8dd182dd4

  • SHA256

    a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4

  • SHA512

    913c44419edb0c7ac7e57a5974c3dd834ebcb09f6687111b4a20968becb4378341b06d7f99b8a47d047e95c3a3e7bf1e513bce0299e78ff22b6160176fc3f8bb

  • SSDEEP

    49152:EUEvXcbN7MdNBR/PBfltMqdMxR+w2UduyiV4vO6yiMPn+7d0agxpA:37MRR1FMnlduyiV4v1nMPn+7

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\a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.exe
    "C:\Users\Admin\AppData\Local\Temp\a5d4b2c4975d300359d2b95a90940d5f5b7382487e5a979e8ced307ca75a8de4.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:2028
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:768

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\f83dFOfzAIIrNC.dat
    Filesize

    3KB

    MD5

    6e3a5bc65ad71ed5fd1ccd765ca3ac64

    SHA1

    e51ea12e0961470aa6eae34306f776f7d73428b2

    SHA256

    c3e93507089e406097c3f8153a467ed5eb029b17eabf9791292439d6131dd887

    SHA512

    57a1a4a4ae2c5add120dfeda85ef1646763d654d59bd037d8c060fe7cf698c2dfe850328c6ea35ad4fc4f3d816e0bd9b6ddc373b26f045647427195436a08520

  • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.tlb
    Filesize

    3KB

    MD5

    d83675648e6f93a17ca3b6062d97759d

    SHA1

    4072a4f6e706a0121be068aa3a38ba4a7c4f9ba1

    SHA256

    4c1cecd724cb309cf65ccdc1ddaf8678524abc45a2bb3dedbb5f3ae5e603968c

    SHA512

    d27620a33f446aef5e7501ce599b3b09b9df1d2a12cbf9644ce50610709b50052eb89e48f8360123a67876780cc0d584e09be82f65ab4e3694271ccd26a00841

  • C:\Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
    Filesize

    871KB

    MD5

    36cddfd3d2717b327fc5f8baa561bfd0

    SHA1

    8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

    SHA256

    7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

    SHA512

    3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

  • \Program Files (x86)\PriceLess\f83dFOfzAIIrNC.dll
    Filesize

    737KB

    MD5

    15b1d0053054e33606c48c3be74b73fb

    SHA1

    c6bded9c595b0cca4039470b43005b30af94d004

    SHA256

    a959cc9313ba65bb36d7041db8bb7e735fbf5fc550e345e5ca132eb7097d5c80

    SHA512

    647492954e192cf2f9685852ed7f90991ff73f084bd1537bd573fdb527be4cc1d63b23961cccfc43424e75f226a8b2dcd37ded53dd72195637219df67c6964b5

  • \Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
    Filesize

    871KB

    MD5

    36cddfd3d2717b327fc5f8baa561bfd0

    SHA1

    8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

    SHA256

    7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

    SHA512

    3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

  • \Program Files (x86)\PriceLess\f83dFOfzAIIrNC.x64.dll
    Filesize

    871KB

    MD5

    36cddfd3d2717b327fc5f8baa561bfd0

    SHA1

    8bba9508ea9646fdb43dfe05e18ce6ef87a91e31

    SHA256

    7c99cf9fe01131c53365eaefcc4eca91a24bb0bd40f15291dfa6a7f31999fb60

    SHA512

    3af4fd610616eb2e2b84977afbc836e38b6191a28074b39b092f540358e058fa91def134b61f2e7658225b5d7725e9363841ef74aee27ffaa908fa109f6bb74c

  • memory/768-71-0x0000000000000000-mapping.dmp
  • memory/768-72-0x000007FEFB631000-0x000007FEFB633000-memory.dmp
    Filesize

    8KB

  • memory/2028-54-0x0000000075A11000-0x0000000075A13000-memory.dmp
    Filesize

    8KB

  • memory/2028-55-0x0000000000550000-0x0000000000618000-memory.dmp
    Filesize

    800KB

  • memory/2036-67-0x0000000000000000-mapping.dmp