Analysis

  • max time kernel
    140s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2023 13:10

General

  • Target

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe

  • Size

    3.6MB

  • MD5

    36fd273ea7607d3a203f257f4e2649ed

  • SHA1

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48

  • SHA256

    471d501162e2a5cb6aab3f4f5362ff843d05ef9f20d9fd7ea29733d3a9875747

  • SHA512

    cf81163bc6d1f1141130fbe70944387b97d322afe837ad21a88a0be8f9fd87615bd7022cc572b1783871cc99f224258bae75855e805c733793b723ba0483597d

  • SSDEEP

    98304:VQF9SqUKUehGS26Ish7MUTjA+1VFnqWXvqaY4:VSSzMGS26x1MUTM+/Fh

Malware Config

Extracted

Family

aurora

C2

45.9.74.11:8081

Signatures

  • Aurora

    Aurora is a crypto wallet stealer written in Golang.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe
    "C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3988
      • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
        "C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4132
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2708
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3432
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2576
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:3648

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    1KB

    MD5

    4280e36a29fa31c01e4d8b2ba726a0d8

    SHA1

    c485c2c9ce0a99747b18d899b71dfa9a64dabe32

    SHA256

    e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

    SHA512

    494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
    Filesize

    53KB

    MD5

    06ad34f9739c5159b4d92d702545bd49

    SHA1

    9152a0d4f153f3f40f7e606be75f81b582ee0c17

    SHA256

    474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

    SHA512

    c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

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

    16KB

    MD5

    8a4bcc8ce73f60ce860239381e1cd4ed

    SHA1

    a3e4fce4a63d16e41839818dbf080be830d1f962

    SHA256

    91d55a963cb5e806af772d1504042ffed9cced38b91a687c9d33b7d160463ebe

    SHA512

    7bdd2f2830cbfc5d35c7244934bebbb0c16d94c6949a3f87927d88083917ff7dbccf5c6d589f8976a7e44d9a6c4e43407fe32502dddf2dd80558b5d7a0fc84f5

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
    Filesize

    365.5MB

    MD5

    ba50f2bca86ba947a8d2035bb9b35123

    SHA1

    a542b5c5d41174dc2475a219978123b7d14f958f

    SHA256

    17790c5c071280462ed8e617fd2edfff5bf0f40fb9add57f866f058fdbf24cb5

    SHA512

    08fdb619e411247c571710bc47df2463c95dc2fee82025e548b65ff1a3e4a53e663fafec9bcc5cc234f32211b25f6f9472786c1be543eb71629f32ec09f04379

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
    Filesize

    365.5MB

    MD5

    ba50f2bca86ba947a8d2035bb9b35123

    SHA1

    a542b5c5d41174dc2475a219978123b7d14f958f

    SHA256

    17790c5c071280462ed8e617fd2edfff5bf0f40fb9add57f866f058fdbf24cb5

    SHA512

    08fdb619e411247c571710bc47df2463c95dc2fee82025e548b65ff1a3e4a53e663fafec9bcc5cc234f32211b25f6f9472786c1be543eb71629f32ec09f04379

  • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
    Filesize

    369.8MB

    MD5

    14a9737eb666769fee7c28a00eb14e82

    SHA1

    ab8f2279f13a546fc32233a4da0855660fb07ec0

    SHA256

    a5fda7973fc4b9cf7fa14943302c0b6cd81c7615105ab0031e20fc5ed2a2396a

    SHA512

    973d5236da1979d31376d55f6b304fa166835d99a4574e3345e25ebed5b492cf9a3ae3f0a800d137fa8756288684b6d5c07ff97c8e5c2cbb698585f09373e9e7

  • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
    Filesize

    369.8MB

    MD5

    14a9737eb666769fee7c28a00eb14e82

    SHA1

    ab8f2279f13a546fc32233a4da0855660fb07ec0

    SHA256

    a5fda7973fc4b9cf7fa14943302c0b6cd81c7615105ab0031e20fc5ed2a2396a

    SHA512

    973d5236da1979d31376d55f6b304fa166835d99a4574e3345e25ebed5b492cf9a3ae3f0a800d137fa8756288684b6d5c07ff97c8e5c2cbb698585f09373e9e7

  • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
    Filesize

    243.3MB

    MD5

    c52ad53e9dd7a62642511387c5625d71

    SHA1

    b33676a38cbfd26be4d0ff82701c8abb47842bbc

    SHA256

    45a96da9019d590a5adfde18549df2a572f8180e044dc275cf0a72a0a24fcd7c

    SHA512

    f6b511cf0fb03a8ffcb707693260ceb0e16819823ecb34eab70289c74078ae57cdad0fdee9941d676a61d37d74e950d0ad6d6f7174411ad1ff6121e6edcdc410

  • memory/2576-166-0x0000000007440000-0x000000000745A000-memory.dmp
    Filesize

    104KB

  • memory/2576-165-0x0000000007170000-0x000000000717E000-memory.dmp
    Filesize

    56KB

  • memory/2576-159-0x00000000064C0000-0x00000000064F2000-memory.dmp
    Filesize

    200KB

  • memory/2576-167-0x0000000007420000-0x0000000007428000-memory.dmp
    Filesize

    32KB

  • memory/2576-160-0x0000000075900000-0x000000007594C000-memory.dmp
    Filesize

    304KB

  • memory/2576-161-0x0000000004BE0000-0x0000000004BFE000-memory.dmp
    Filesize

    120KB

  • memory/2576-162-0x00000000072B0000-0x00000000072BA000-memory.dmp
    Filesize

    40KB

  • memory/2576-149-0x0000000000000000-mapping.dmp
  • memory/2576-163-0x00000000074E0000-0x0000000007576000-memory.dmp
    Filesize

    600KB

  • memory/2708-147-0x0000000006500000-0x000000000651A000-memory.dmp
    Filesize

    104KB

  • memory/2708-140-0x0000000000000000-mapping.dmp
  • memory/2708-146-0x0000000007640000-0x0000000007CBA000-memory.dmp
    Filesize

    6.5MB

  • memory/2708-145-0x0000000006000000-0x000000000601E000-memory.dmp
    Filesize

    120KB

  • memory/2708-141-0x0000000004A60000-0x0000000004A96000-memory.dmp
    Filesize

    216KB

  • memory/2708-144-0x00000000059A0000-0x0000000005A06000-memory.dmp
    Filesize

    408KB

  • memory/2708-143-0x0000000005880000-0x00000000058E6000-memory.dmp
    Filesize

    408KB

  • memory/2708-142-0x00000000050E0000-0x0000000005708000-memory.dmp
    Filesize

    6.2MB

  • memory/3432-148-0x0000000000000000-mapping.dmp
  • memory/3648-157-0x0000000000400000-0x0000000000731000-memory.dmp
    Filesize

    3.2MB

  • memory/3648-155-0x0000000000400000-0x0000000000731000-memory.dmp
    Filesize

    3.2MB

  • memory/3648-152-0x0000000000400000-0x0000000000731000-memory.dmp
    Filesize

    3.2MB

  • memory/3648-151-0x0000000000000000-mapping.dmp
  • memory/3648-164-0x0000000000400000-0x0000000000731000-memory.dmp
    Filesize

    3.2MB

  • memory/3988-132-0x0000000000000000-mapping.dmp
  • memory/4132-139-0x0000000005960000-0x0000000005982000-memory.dmp
    Filesize

    136KB

  • memory/4132-138-0x0000000000DF0000-0x0000000001564000-memory.dmp
    Filesize

    7.5MB

  • memory/4132-135-0x0000000000000000-mapping.dmp