Analysis

  • max time kernel
    158s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    19-02-2022 22:14

General

  • Target

    7a27a0d66d153c231f9dd703684ad2f563334c4bbb70d0030bc7b792aa808694.exe

  • Size

    144KB

  • MD5

    2bf6a57fc257d6b165aa0bb3f6c92370

  • SHA1

    4764cdefbb2eff301753429caa9c8b46d4a32a9d

  • SHA256

    7a27a0d66d153c231f9dd703684ad2f563334c4bbb70d0030bc7b792aa808694

  • SHA512

    4baae9d54327a536e3c93a43967e997e1e0f287ae63fe66c275b570f2afeba66b8c364ca7a469d32646e6ce314e03d64be6a4cda9818b103ba11af0741c21320

Malware Config

Extracted

Family

azorult

C2

http://f0435401.xsph.ru/4rjkt4q3zs/2uyd5gi4e6h/w3d8yd.php

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Poullight

    Poullight is an information stealer first seen in March 2020.

  • Poullight Stealer Payload 3 IoCs
  • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M14

    suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M14

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Windows directory 3 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 2 IoCs

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

  • Modifies data under HKEY_USERS 54 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a27a0d66d153c231f9dd703684ad2f563334c4bbb70d0030bc7b792aa808694.exe
    "C:\Users\Admin\AppData\Local\Temp\7a27a0d66d153c231f9dd703684ad2f563334c4bbb70d0030bc7b792aa808694.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Roaming\1337\build.exe
      "C:\Users\Admin\AppData\Roaming\1337\build.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • C:\Users\Admin\AppData\Roaming\1337\AZ34_EXE.exe
      "C:\Users\Admin\AppData\Roaming\1337\AZ34_EXE.exe"
      2⤵
      • Executes dropped EXE
      PID:2604
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2080
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2732
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2452

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsfB1EA.tmp\System.dll
    MD5

    2ae993a2ffec0c137eb51c8832691bcb

    SHA1

    98e0b37b7c14890f8a599f35678af5e9435906e1

    SHA256

    681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59

    SHA512

    2501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9

  • C:\Users\Admin\AppData\Roaming\1337\AZ34_EXE.exe
    MD5

    091db75e23be908ddee5d7f83054d5bb

    SHA1

    3c37f4f9a340ff66d0f639a65cd9f5ddc5931082

    SHA256

    331462e13836dbb0a47837b5d3e7c81674dd63f4044036f5e5797adb4c5df7ba

    SHA512

    91fa92afcb27664a67192779ab6e09211a27b9ec8100c6a4b06b536851a6ef410238f909b12883fbdfcc663641df2a786d28156b057542cfc3ada8d00df95f38

  • C:\Users\Admin\AppData\Roaming\1337\AZ34_EXE.exe
    MD5

    091db75e23be908ddee5d7f83054d5bb

    SHA1

    3c37f4f9a340ff66d0f639a65cd9f5ddc5931082

    SHA256

    331462e13836dbb0a47837b5d3e7c81674dd63f4044036f5e5797adb4c5df7ba

    SHA512

    91fa92afcb27664a67192779ab6e09211a27b9ec8100c6a4b06b536851a6ef410238f909b12883fbdfcc663641df2a786d28156b057542cfc3ada8d00df95f38

  • C:\Users\Admin\AppData\Roaming\1337\build.exe
    MD5

    212a102d59c428807379d6cfcb73e190

    SHA1

    4b79149edbc3fee30aa8519c3b66ac65255e1ca1

    SHA256

    b2fb81aec16c312091a6489ae95b2f5cf723e757bfd588e4defca5e2197e797a

    SHA512

    2fcc7acc384371b6d9a2ddb390efcf7022c0fda16dfb7c9341a99d838fb481a9d00e26ab7fbe4ecf5320ddd9c292121f5fa0183653b2eeea84080d2b0353e07c

  • C:\Users\Admin\AppData\Roaming\1337\build.exe
    MD5

    212a102d59c428807379d6cfcb73e190

    SHA1

    4b79149edbc3fee30aa8519c3b66ac65255e1ca1

    SHA256

    b2fb81aec16c312091a6489ae95b2f5cf723e757bfd588e4defca5e2197e797a

    SHA512

    2fcc7acc384371b6d9a2ddb390efcf7022c0fda16dfb7c9341a99d838fb481a9d00e26ab7fbe4ecf5320ddd9c292121f5fa0183653b2eeea84080d2b0353e07c

  • memory/2748-135-0x00007FFAFE913000-0x00007FFAFE915000-memory.dmp
    Filesize

    8KB

  • memory/2748-136-0x0000021B03DA0000-0x0000021B03DC0000-memory.dmp
    Filesize

    128KB

  • memory/2748-137-0x0000021B1E300000-0x0000021B1E302000-memory.dmp
    Filesize

    8KB

  • memory/2748-138-0x0000021B04160000-0x0000021B0416A000-memory.dmp
    Filesize

    40KB