Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/03/2024, 19:29

General

  • Target

    tmp.exe

  • Size

    3.7MB

  • MD5

    b9d77dfafe8d75e173bbea82ba28b61b

  • SHA1

    c35a8c7a52b10a2f346b3e25b2f289b9ecddf61b

  • SHA256

    84c20612fe86cf367cdaf229e8be9328c8172b716a8a7fbf1a68f925f1183edf

  • SHA512

    9b53b6cd61bfda4ef0cc3525b23223eee614a145ce2dc74d7767418f64d39f0a6a80a2857afd7b40ec095f17338e9d862446a2738a55fd019f9518c8f2ab268e

  • SSDEEP

    98304:bwswYEXMeHiqFld/jSk1systqf6/YXPPOy/0HBkAffZUeDRl+:JEzx5Drf6m0HBRnZUeG

Malware Config

Extracted

Family

redline

Botnet

5195552529

C2

https://pastebin.com/raw/NgsUAPya

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 5 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 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2524
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 508
      2⤵
      • Program crash
      PID:2564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar6197.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2212-1-0x0000000074200000-0x00000000748EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-2-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

    Filesize

    256KB

  • memory/2212-61-0x0000000002100000-0x0000000004100000-memory.dmp

    Filesize

    32.0MB

  • memory/2212-0-0x0000000000AE0000-0x0000000000B12000-memory.dmp

    Filesize

    200KB

  • memory/2212-60-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

    Filesize

    256KB

  • memory/2212-59-0x0000000074200000-0x00000000748EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-7-0x0000000002100000-0x0000000004100000-memory.dmp

    Filesize

    32.0MB

  • memory/2524-8-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-18-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-20-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-16-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-10-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-12-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2524-5-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB