Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2023 19:38

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:4880
    • 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:4440
      • 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:2092
        • 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:1936
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1216
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4724
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:1764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    6195a91754effb4df74dbc72cdf4f7a6

    SHA1

    aba262f5726c6d77659fe0d3195e36a85046b427

    SHA256

    3254495a5513b37a2686a876d0040275414699e7ce760e7b5ee05e41a54b96f5

    SHA512

    ed723d15de267390dc93263538428e2c881be3494c996a810616b470d6df7d5acfcc8725687d5c50319ebef45caef44f769bfc32e0dc3abd249dacff4a12cc89

  • 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

    1804f2abfa46ec73c85ffc84f1ef02e4

    SHA1

    991d44e194f780c4f75aaae497de9f4a3b08e2d0

    SHA256

    d6de745a785b0e0b88d62f59a85a88d6495a727fbdc5a90a04c7c47813cf89e8

    SHA512

    0e9617a2ed07bb459d26f714da2fd62c616c7852fc7660414544dee0ad3799b10f2b591fd930aa860e31407aab0620ea14a614fcaabf33e953b9b928906ec04e

  • 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

    232.3MB

    MD5

    344e8b64b02ae818a516118c2ced9606

    SHA1

    999467d8e428e550c2134ad402ed47d5b4469cea

    SHA256

    302ca0d5da61bdfc937f23db883b8c9b598c94d9936d4d932109a1cda41b4633

    SHA512

    c80cee42cf9acd1b366273b5951d6fc8e1bc05a273a5e0b248ae5fc7ad7772296d29fcef2d5ef9e241ec05d4a6cdc90aa85826fb7ff84e477ba8faea4d44e803

  • memory/1216-148-0x0000000000000000-mapping.dmp

  • memory/1764-157-0x0000000000400000-0x0000000000731000-memory.dmp

    Filesize

    3.2MB

  • memory/1764-151-0x0000000000000000-mapping.dmp

  • memory/1764-164-0x0000000000400000-0x0000000000731000-memory.dmp

    Filesize

    3.2MB

  • memory/1764-155-0x0000000000400000-0x0000000000731000-memory.dmp

    Filesize

    3.2MB

  • memory/1764-152-0x0000000000400000-0x0000000000731000-memory.dmp

    Filesize

    3.2MB

  • memory/1936-141-0x0000000004D80000-0x0000000004DB6000-memory.dmp

    Filesize

    216KB

  • memory/1936-144-0x0000000005ED0000-0x0000000005F36000-memory.dmp

    Filesize

    408KB

  • memory/1936-142-0x00000000054E0000-0x0000000005B08000-memory.dmp

    Filesize

    6.2MB

  • memory/1936-143-0x0000000005CB0000-0x0000000005D16000-memory.dmp

    Filesize

    408KB

  • memory/1936-140-0x0000000000000000-mapping.dmp

  • memory/1936-146-0x0000000007BA0000-0x000000000821A000-memory.dmp

    Filesize

    6.5MB

  • memory/1936-147-0x0000000006850000-0x000000000686A000-memory.dmp

    Filesize

    104KB

  • memory/1936-145-0x0000000006360000-0x000000000637E000-memory.dmp

    Filesize

    120KB

  • memory/2092-135-0x0000000000000000-mapping.dmp

  • memory/2092-138-0x0000000000BB0000-0x0000000001324000-memory.dmp

    Filesize

    7.5MB

  • memory/2092-139-0x0000000007270000-0x0000000007292000-memory.dmp

    Filesize

    136KB

  • memory/4440-132-0x0000000000000000-mapping.dmp

  • memory/4724-159-0x0000000004DA0000-0x0000000004DD2000-memory.dmp

    Filesize

    200KB

  • memory/4724-160-0x0000000072DC0000-0x0000000072E0C000-memory.dmp

    Filesize

    304KB

  • memory/4724-161-0x0000000004D80000-0x0000000004D9E000-memory.dmp

    Filesize

    120KB

  • memory/4724-162-0x0000000007420000-0x000000000742A000-memory.dmp

    Filesize

    40KB

  • memory/4724-163-0x0000000007620000-0x00000000076B6000-memory.dmp

    Filesize

    600KB

  • memory/4724-149-0x0000000000000000-mapping.dmp

  • memory/4724-165-0x0000000005BE0000-0x0000000005BEE000-memory.dmp

    Filesize

    56KB

  • memory/4724-166-0x00000000075E0000-0x00000000075FA000-memory.dmp

    Filesize

    104KB

  • memory/4724-167-0x00000000075C0000-0x00000000075C8000-memory.dmp

    Filesize

    32KB