Analysis

  • max time kernel
    125s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    14-03-2022 10:37

General

  • Target

    XFT-21062-22.exe

  • Size

    829KB

  • MD5

    d733380b2e13ba9a8c2fb23a770a56e7

  • SHA1

    53145071b9a816bd76372351bb0b9aeffd25d864

  • SHA256

    23af733a95426c2ba12f205acbdc6516ab4a12579b5de3a66d45a688a37e1d95

  • SHA512

    027f3cff826eafbca9a0f5aad4f44b4ba94aa55886279c504fc03fcd78f97ba7a93832f719a5b2ebcbb2f0d6c03804adf72697b6c29ca20a0b14115def6945c4

Malware Config

Extracted

Family

redline

Botnet

billy

C2

45.133.174.87:15028

Signatures

  • RedLine

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

  • RedLine Payload 1 IoCs
  • Windows security bypass 2 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 4 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe
    "C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe"
    1⤵
    • Checks computer location settings
    • Windows security modification
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Cursors\6zqC2hZrEtnwuWCRJ\svchost.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Cursors\6zqC2hZrEtnwuWCRJ\svchost.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe
      "C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe"
      2⤵
        PID:2572
      • C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe
        "C:\Users\Admin\AppData\Local\Temp\XFT-21062-22.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2600
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k netsvcs -p
      1⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Enumerates system info in registry
      PID:3508
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
      1⤵
      • Modifies data under HKEY_USERS
      PID:4360

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Disabling Security Tools

    2
    T1089

    Modify Registry

    3
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    4
    T1012

    System Information Discovery

    4
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\XFT-21062-22.exe.log
      MD5

      17573558c4e714f606f997e5157afaac

      SHA1

      13e16e9415ceef429aaf124139671ebeca09ed23

      SHA256

      c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

      SHA512

      f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      MD5

      264bdf4039fa632a1e97f56385be1b47

      SHA1

      4e763082f0ffcf7a2eae53bfae4012176f9ee5cc

      SHA256

      6205756956ebc3e5681e18a959537a2ec9d19791175668ea101b48890f8a56bc

      SHA512

      a1952ce76bf3f369e6b11368483d26ff1ffdbed0a6651d17dd635f21a5e6f30466e627cc955981b7b3a82effd07881a0a31b9d11f6ddefce356e0dffe56a4230

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      MD5

      b1c159445b218fcc3039c60b3f2af57f

      SHA1

      9afb5509e24438ca02311cf2e8384d18196c336f

      SHA256

      bf2158a0892a74c2efa0b821b17e1cc33b77eaaa1a882c50ca408c5156d9b58e

      SHA512

      a68e2f91c0d25880592c8a23ebe7d11e5601551aaa93c938a120115572ec2c52a491cfd7f3b5408ad7635ee538779fcb974d770ddac191610134f6973fc586ce

    • memory/1032-174-0x000000007F350000-0x000000007F351000-memory.dmp
      Filesize

      4KB

    • memory/1032-183-0x00000000074A0000-0x00000000074A8000-memory.dmp
      Filesize

      32KB

    • memory/1032-182-0x00000000074C0000-0x00000000074DA000-memory.dmp
      Filesize

      104KB

    • memory/1032-178-0x0000000007180000-0x000000000719A000-memory.dmp
      Filesize

      104KB

    • memory/1032-154-0x0000000004D30000-0x0000000004D52000-memory.dmp
      Filesize

      136KB

    • memory/1032-143-0x00000000024E0000-0x0000000002516000-memory.dmp
      Filesize

      216KB

    • memory/1032-144-0x00000000746A0000-0x0000000074E50000-memory.dmp
      Filesize

      7.7MB

    • memory/1032-145-0x00000000025E0000-0x00000000025E1000-memory.dmp
      Filesize

      4KB

    • memory/1032-146-0x00000000025E2000-0x00000000025E3000-memory.dmp
      Filesize

      4KB

    • memory/1032-169-0x0000000007070000-0x00000000070A2000-memory.dmp
      Filesize

      200KB

    • memory/1032-173-0x000000006F2B0000-0x000000006F2FC000-memory.dmp
      Filesize

      304KB

    • memory/1032-168-0x00000000025E5000-0x00000000025E7000-memory.dmp
      Filesize

      8KB

    • memory/1032-155-0x0000000005610000-0x0000000005676000-memory.dmp
      Filesize

      408KB

    • memory/1324-177-0x00000000081C0000-0x000000000883A000-memory.dmp
      Filesize

      6.5MB

    • memory/1324-179-0x0000000007BE0000-0x0000000007BEA000-memory.dmp
      Filesize

      40KB

    • memory/1324-151-0x0000000005352000-0x0000000005353000-memory.dmp
      Filesize

      4KB

    • memory/1324-167-0x0000000005355000-0x0000000005357000-memory.dmp
      Filesize

      8KB

    • memory/1324-156-0x00000000061A0000-0x0000000006206000-memory.dmp
      Filesize

      408KB

    • memory/1324-150-0x0000000005350000-0x0000000005351000-memory.dmp
      Filesize

      4KB

    • memory/1324-148-0x00000000746A0000-0x0000000074E50000-memory.dmp
      Filesize

      7.7MB

    • memory/1324-181-0x0000000007DA0000-0x0000000007DAE000-memory.dmp
      Filesize

      56KB

    • memory/1324-171-0x000000006F2B0000-0x000000006F2FC000-memory.dmp
      Filesize

      304KB

    • memory/1324-147-0x0000000005990000-0x0000000005FB8000-memory.dmp
      Filesize

      6.2MB

    • memory/1324-161-0x0000000006870000-0x000000000688E000-memory.dmp
      Filesize

      120KB

    • memory/1324-176-0x000000007F3B0000-0x000000007F3B1000-memory.dmp
      Filesize

      4KB

    • memory/1744-175-0x000000007FC80000-0x000000007FC81000-memory.dmp
      Filesize

      4KB

    • memory/1744-180-0x0000000007180000-0x0000000007216000-memory.dmp
      Filesize

      600KB

    • memory/1744-153-0x0000000004822000-0x0000000004823000-memory.dmp
      Filesize

      4KB

    • memory/1744-152-0x0000000004820000-0x0000000004821000-memory.dmp
      Filesize

      4KB

    • memory/1744-166-0x0000000004825000-0x0000000004827000-memory.dmp
      Filesize

      8KB

    • memory/1744-149-0x00000000746A0000-0x0000000074E50000-memory.dmp
      Filesize

      7.7MB

    • memory/1744-170-0x000000006F2B0000-0x000000006F2FC000-memory.dmp
      Filesize

      304KB

    • memory/1744-172-0x0000000006B70000-0x0000000006B8E000-memory.dmp
      Filesize

      120KB

    • memory/2352-140-0x0000000004DA0000-0x0000000004DAA000-memory.dmp
      Filesize

      40KB

    • memory/2352-137-0x0000000005350000-0x00000000058F4000-memory.dmp
      Filesize

      5.6MB

    • memory/2352-135-0x00000000002A0000-0x0000000000376000-memory.dmp
      Filesize

      856KB

    • memory/2352-142-0x0000000004DA0000-0x0000000005344000-memory.dmp
      Filesize

      5.6MB

    • memory/2352-136-0x0000000004D00000-0x0000000004D9C000-memory.dmp
      Filesize

      624KB

    • memory/2352-165-0x0000000070800000-0x0000000070812000-memory.dmp
      Filesize

      72KB

    • memory/2352-134-0x00000000746A0000-0x0000000074E50000-memory.dmp
      Filesize

      7.7MB

    • memory/2352-141-0x0000000004FE0000-0x0000000005036000-memory.dmp
      Filesize

      344KB

    • memory/2352-138-0x0000000004E40000-0x0000000004ED2000-memory.dmp
      Filesize

      584KB

    • memory/2352-139-0x0000000004DA0000-0x0000000005344000-memory.dmp
      Filesize

      5.6MB

    • memory/2600-158-0x00000000746A0000-0x0000000074E50000-memory.dmp
      Filesize

      7.7MB

    • memory/2600-157-0x0000000000400000-0x000000000041E000-memory.dmp
      Filesize

      120KB

    • memory/2600-159-0x0000000005380000-0x0000000005998000-memory.dmp
      Filesize

      6.1MB

    • memory/2600-184-0x0000000006350000-0x0000000006512000-memory.dmp
      Filesize

      1.8MB

    • memory/2600-185-0x0000000006A50000-0x0000000006F7C000-memory.dmp
      Filesize

      5.2MB

    • memory/2600-160-0x0000000004D60000-0x0000000004D72000-memory.dmp
      Filesize

      72KB

    • memory/2600-162-0x0000000004DC0000-0x0000000004DFC000-memory.dmp
      Filesize

      240KB

    • memory/2600-163-0x0000000004D50000-0x0000000004D51000-memory.dmp
      Filesize

      4KB

    • memory/2600-189-0x0000000006850000-0x00000000068C6000-memory.dmp
      Filesize

      472KB

    • memory/2600-190-0x0000000006A30000-0x0000000006A4E000-memory.dmp
      Filesize

      120KB

    • memory/2600-164-0x0000000005070000-0x000000000517A000-memory.dmp
      Filesize

      1.0MB