Analysis

  • max time kernel
    24s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 21:36

General

  • Target

    9db37f214f177e141981dba83d4c27336176909e1396e7026d4a87656c324610.exe

  • Size

    4.5MB

  • MD5

    cb1ec9ffe7b481b867a6a939494f1fa3

  • SHA1

    e62333030df25ddd7812552a0afd765bd4cfd7e3

  • SHA256

    9db37f214f177e141981dba83d4c27336176909e1396e7026d4a87656c324610

  • SHA512

    d346dcecf61ccfb5fcdfdc8f52dab31faf7b4bf33ab976dbb2af67c4ac4bcfb6aa4bab2edb87bb7b0a05beb2191a604d3a657ab9300f543b56a786cdb0401e9a

  • SSDEEP

    49152:woaKaJJEq9+zJUHaxup4v12M6MUmgLptOyCzP5joPXGIjQoB+lyzEJ3jdKR:VOJE/tUo2jmkpthCzP5EP2iQZYiTs

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 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9db37f214f177e141981dba83d4c27336176909e1396e7026d4a87656c324610.exe
    "C:\Users\Admin\AppData\Local\Temp\9db37f214f177e141981dba83d4c27336176909e1396e7026d4a87656c324610.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 WriteProcessMemory
    • System policy modification
    PID:1884
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\aQhtpBOWE523h6.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\aQhtpBOWE523h6.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:952

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)\GoSave\aQhtpBOWE523h6.dat
    Filesize

    4KB

    MD5

    976c879f4707547c1c171d3b6e9e1301

    SHA1

    5978e86b8831482b93356b84f5d2c8bcb2c5b917

    SHA256

    41be29be109e78be04575fb2af0f312dc4299158a3a397ba0956c1f17542f8ce

    SHA512

    f5b8ad20e7eec6c8316593f759e4379194f4a5ba27aca8ddc17bb3adcb725c91cd768f5404c1bdd33c85c9b296bec5888a7aded66325b6545e42ddbdd8dbcc35

  • C:\Program Files (x86)\GoSave\aQhtpBOWE523h6.tlb
    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\GoSave\aQhtpBOWE523h6.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\aQhtpBOWE523h6.dll
    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\aQhtpBOWE523h6.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\aQhtpBOWE523h6.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/952-65-0x0000000000000000-mapping.dmp
  • memory/952-66-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp
    Filesize

    8KB

  • memory/1772-61-0x0000000000000000-mapping.dmp
  • memory/1884-54-0x0000000076321000-0x0000000076323000-memory.dmp
    Filesize

    8KB

  • memory/1884-55-0x0000000002CA0000-0x0000000002D69000-memory.dmp
    Filesize

    804KB