Analysis

  • max time kernel
    135s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2023 21:53

General

  • Target

    eReceipt document pdf.exe

  • Size

    402KB

  • MD5

    3ceadd02b2ad7bd0fb074ec98f856832

  • SHA1

    d426a8fbc90bf66dd127ded9f966948ce474a655

  • SHA256

    55d7d3ef13deed83e09e8a72b7fa8dc103edca90d6815da4157ee04dd9972dc2

  • SHA512

    fefd79c3b43de48fde52e7d22bd12d5de83d9092995ab4716c24f0d9bc394f2e249aef05be20eb617666f6ce92e2e4587000f4e53a33493bc3a561c97d6b00c4

  • SSDEEP

    12288:t+3UzRw/Toe/QV868P7r9r/+ppppppppppppppppppppppppppppp0G:tIpS8j1q

Malware Config

Extracted

Family

redline

Botnet

base

C2

66.85.27.233:56586

Signatures

  • RedLine

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

  • RedLine payload 1 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 IoCs
  • Executes dropped EXE 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eReceipt document pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\eReceipt document pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\eReceipt document pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\eReceipt document pdf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\eReceipt document pdf.exe.log

    Filesize

    617B

    MD5

    99e770c0d4043aa84ef3d3cbc7723c25

    SHA1

    19829c5c413fccba750a3357f938dfa94486acad

    SHA256

    33c7dd4c852dae6462c701337f8e0a8647602847ccaee656fa6f1149cccfb5d5

    SHA512

    ba521e2f57d7e1db19445201948caa7af6d953e1c1340228934888f8ec05b8984ad492122d0bf0550b5e679614d8a713ecf68f91916ffa6e5d8f75bf003aae39

  • C:\Users\Admin\AppData\Local\Temp\eReceipt document pdf.exe

    Filesize

    402KB

    MD5

    3ceadd02b2ad7bd0fb074ec98f856832

    SHA1

    d426a8fbc90bf66dd127ded9f966948ce474a655

    SHA256

    55d7d3ef13deed83e09e8a72b7fa8dc103edca90d6815da4157ee04dd9972dc2

    SHA512

    fefd79c3b43de48fde52e7d22bd12d5de83d9092995ab4716c24f0d9bc394f2e249aef05be20eb617666f6ce92e2e4587000f4e53a33493bc3a561c97d6b00c4

  • C:\Users\Admin\AppData\Local\Temp\tmp1E9B.tmp

    Filesize

    46KB

    MD5

    02d2c46697e3714e49f46b680b9a6b83

    SHA1

    84f98b56d49f01e9b6b76a4e21accf64fd319140

    SHA256

    522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

    SHA512

    60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

  • C:\Users\Admin\AppData\Local\Temp\tmp1EDF.tmp

    Filesize

    92KB

    MD5

    988b3b69326285fe3025cafc08a1bc8b

    SHA1

    3cf978d7e8f6281558c2c34fa60d13882edfd81e

    SHA256

    0acbaf311f2539bdf907869f7b8e75c614597d7d0084e2073ac002cf7e5437f4

    SHA512

    6fcc3acea7bee90489a23f76d4090002a10d8c735174ad90f8641a310717cfceb9b063dc700a88fcb3f9054f0c28b86f31329759f71c8eaf15620cefa87a17d4

  • C:\Users\Admin\AppData\Local\Temp\tmp1F59.tmp

    Filesize

    48KB

    MD5

    349e6eb110e34a08924d92f6b334801d

    SHA1

    bdfb289daff51890cc71697b6322aa4b35ec9169

    SHA256

    c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

    SHA512

    2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

  • C:\Users\Admin\AppData\Local\Temp\tmp1F7E.tmp

    Filesize

    112KB

    MD5

    780853cddeaee8de70f28a4b255a600b

    SHA1

    ad7a5da33f7ad12946153c497e990720b09005ed

    SHA256

    1055ff62de3dea7645c732583242adf4164bdcfb9dd37d9b35bbb9510d59b0a3

    SHA512

    e422863112084bb8d11c682482e780cd63c2f20c8e3a93ed3b9efd1b04d53eb5d3c8081851ca89b74d66f3d9ab48eb5f6c74550484f46e7c6e460a8250c9b1d8

  • C:\Users\Admin\AppData\Local\Temp\tmp1FD8.tmp

    Filesize

    96KB

    MD5

    d367ddfda80fdcf578726bc3b0bc3e3c

    SHA1

    23fcd5e4e0e5e296bee7e5224a8404ecd92cf671

    SHA256

    0b8607fdf72f3e651a2a8b0ac7be171b4cb44909d76bb8d6c47393b8ea3d84a0

    SHA512

    40e9239e3f084b4b981431817ca282feb986cf49227911bf3d68845baf2ee626b564c8fabe6e13b97e6eb214da1c02ca09a62bcf5e837900160cf479c104bf77

  • memory/2040-133-0x00000000004A0000-0x000000000050A000-memory.dmp

    Filesize

    424KB

  • memory/2040-134-0x0000000004F90000-0x000000000502C000-memory.dmp

    Filesize

    624KB

  • memory/2040-135-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

    Filesize

    64KB

  • memory/2040-136-0x00000000055E0000-0x0000000005B84000-memory.dmp

    Filesize

    5.6MB

  • memory/3984-146-0x00000000069D0000-0x0000000006B92000-memory.dmp

    Filesize

    1.8MB

  • memory/3984-145-0x00000000056E0000-0x00000000057EA000-memory.dmp

    Filesize

    1.0MB

  • memory/3984-147-0x00000000070D0000-0x00000000075FC000-memory.dmp

    Filesize

    5.2MB

  • memory/3984-148-0x0000000006950000-0x00000000069B6000-memory.dmp

    Filesize

    408KB

  • memory/3984-149-0x0000000006D40000-0x0000000006DB6000-memory.dmp

    Filesize

    472KB

  • memory/3984-150-0x0000000006EB0000-0x0000000006F42000-memory.dmp

    Filesize

    584KB

  • memory/3984-151-0x0000000007090000-0x00000000070AE000-memory.dmp

    Filesize

    120KB

  • memory/3984-152-0x0000000005530000-0x0000000005540000-memory.dmp

    Filesize

    64KB

  • memory/3984-144-0x0000000005530000-0x0000000005540000-memory.dmp

    Filesize

    64KB

  • memory/3984-143-0x0000000005430000-0x000000000546C000-memory.dmp

    Filesize

    240KB

  • memory/3984-142-0x00000000053D0000-0x00000000053E2000-memory.dmp

    Filesize

    72KB

  • memory/3984-141-0x0000000005B60000-0x0000000006178000-memory.dmp

    Filesize

    6.1MB

  • memory/3984-137-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB