Analysis

  • max time kernel
    39s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10-03-2021 16:56

General

  • Target

    638127191.exe

  • Size

    256KB

  • MD5

    5c9e61f7399d08070ee86d8796b4b126

  • SHA1

    12e16e5c06ae479d216975ac63ac6a935ec9b189

  • SHA256

    23861faf3ed06c8f76c905f6d592e3aacd4adfb0a63a3af08f94aa42c1a3f57f

  • SHA512

    bc5243e325e9c57b743bf1919b84bff709387554b2f028a37aefcfa7b0e8f61c3265666d5a99e7fc24c5cae85ed7240f6856b70e70bd3c28d236edcb7fcc4226

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • Executes dropped EXE 3 IoCs
  • 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 3 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 16 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.

  • Program crash 2 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 37 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\638127191.exe
    "C:\Users\Admin\AppData\Local\Temp\638127191.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Users\Admin\AppData\Local\Temp\794066702.exe
      "C:\Users\Admin\AppData\Local\Temp\794066702.exe"
      2⤵
      • Executes dropped EXE
      PID:2928
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 276
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4000
    • C:\Users\Admin\AppData\Local\Temp\1712476341.exe
      "C:\Users\Admin\AppData\Local\Temp\1712476341.exe"
      2⤵
      • Executes dropped EXE
      • Windows security modification
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:188
      • 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\1712476341.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2356
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1864
        • C:\Windows\SysWOW64\timeout.exe
          timeout 1
          4⤵
          • Delays execution with timeout.exe
          PID:3204
      • C:\Users\Admin\AppData\Local\Temp\1712476341.exe
        "C:\Users\Admin\AppData\Local\Temp\1712476341.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2420
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 188 -s 1976
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1076

Network

MITRE ATT&CK Matrix ATT&CK v6

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Modify Registry

4
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1712476341.exe
    MD5

    0230b090e69b97194d25a53f2d5514eb

    SHA1

    ac76b29802d240f721fb09adff57950f32989fb7

    SHA256

    1b51a62c1d975227247671411dfa82b3521e82eeaa665e420e81e1f8bf0616f7

    SHA512

    4f907e2624cf9c87c8d5aae709329f20cd59077ba370ba7b581100aa980cb9a92186b4f8436568bb0b8d1ef3551b514c967febdf2f717f3be718a8bc39035907

  • C:\Users\Admin\AppData\Local\Temp\1712476341.exe
    MD5

    0230b090e69b97194d25a53f2d5514eb

    SHA1

    ac76b29802d240f721fb09adff57950f32989fb7

    SHA256

    1b51a62c1d975227247671411dfa82b3521e82eeaa665e420e81e1f8bf0616f7

    SHA512

    4f907e2624cf9c87c8d5aae709329f20cd59077ba370ba7b581100aa980cb9a92186b4f8436568bb0b8d1ef3551b514c967febdf2f717f3be718a8bc39035907

  • C:\Users\Admin\AppData\Local\Temp\1712476341.exe
    MD5

    0230b090e69b97194d25a53f2d5514eb

    SHA1

    ac76b29802d240f721fb09adff57950f32989fb7

    SHA256

    1b51a62c1d975227247671411dfa82b3521e82eeaa665e420e81e1f8bf0616f7

    SHA512

    4f907e2624cf9c87c8d5aae709329f20cd59077ba370ba7b581100aa980cb9a92186b4f8436568bb0b8d1ef3551b514c967febdf2f717f3be718a8bc39035907

  • C:\Users\Admin\AppData\Local\Temp\794066702.exe
    MD5

    58f807333c6bf89503690d4ac187a596

    SHA1

    6835874207df9383886662a5f0378e0d760c1a94

    SHA256

    18b2fb824c91d5901e2b6a2515b62de3b7b541353c5b2c79709505bc477b7b1a

    SHA512

    0eba783fdebe3c6ec2fa58cc196c23f407eddcc617d0a2904fb484efd148fba1c1aed7e3533b0c9927e192aab508ae36e5e2d4d3519b3a677cb15ca64ad71cb4

  • C:\Users\Admin\AppData\Local\Temp\794066702.exe
    MD5

    58f807333c6bf89503690d4ac187a596

    SHA1

    6835874207df9383886662a5f0378e0d760c1a94

    SHA256

    18b2fb824c91d5901e2b6a2515b62de3b7b541353c5b2c79709505bc477b7b1a

    SHA512

    0eba783fdebe3c6ec2fa58cc196c23f407eddcc617d0a2904fb484efd148fba1c1aed7e3533b0c9927e192aab508ae36e5e2d4d3519b3a677cb15ca64ad71cb4

  • memory/188-26-0x0000000004B20000-0x0000000004B21000-memory.dmp
    Filesize

    4KB

  • memory/188-17-0x00000000738D0000-0x0000000073FBE000-memory.dmp
    Filesize

    6.9MB

  • memory/188-25-0x0000000008540000-0x0000000008541000-memory.dmp
    Filesize

    4KB

  • memory/188-24-0x0000000005030000-0x0000000005031000-memory.dmp
    Filesize

    4KB

  • memory/188-27-0x0000000007220000-0x0000000007221000-memory.dmp
    Filesize

    4KB

  • memory/188-18-0x0000000000800000-0x0000000000801000-memory.dmp
    Filesize

    4KB

  • memory/188-28-0x0000000007180000-0x0000000007216000-memory.dmp
    Filesize

    600KB

  • memory/188-14-0x0000000000000000-mapping.dmp
  • memory/1076-47-0x0000000004820000-0x0000000004821000-memory.dmp
    Filesize

    4KB

  • memory/1864-30-0x0000000000000000-mapping.dmp
  • memory/2356-36-0x00000000070A2000-0x00000000070A3000-memory.dmp
    Filesize

    4KB

  • memory/2356-64-0x000000007E540000-0x000000007E541000-memory.dmp
    Filesize

    4KB

  • memory/2356-72-0x0000000009830000-0x0000000009831000-memory.dmp
    Filesize

    4KB

  • memory/2356-69-0x0000000009840000-0x0000000009841000-memory.dmp
    Filesize

    4KB

  • memory/2356-65-0x00000000070A3000-0x00000000070A4000-memory.dmp
    Filesize

    4KB

  • memory/2356-63-0x0000000009890000-0x0000000009891000-memory.dmp
    Filesize

    4KB

  • memory/2356-62-0x00000000096D0000-0x00000000096D1000-memory.dmp
    Filesize

    4KB

  • memory/2356-61-0x0000000009360000-0x0000000009361000-memory.dmp
    Filesize

    4KB

  • memory/2356-54-0x0000000009380000-0x00000000093B3000-memory.dmp
    Filesize

    204KB

  • memory/2356-29-0x0000000000000000-mapping.dmp
  • memory/2356-51-0x0000000008680000-0x0000000008681000-memory.dmp
    Filesize

    4KB

  • memory/2356-31-0x00000000738D0000-0x0000000073FBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2356-32-0x0000000004AF0000-0x0000000004AF1000-memory.dmp
    Filesize

    4KB

  • memory/2356-33-0x00000000076E0000-0x00000000076E1000-memory.dmp
    Filesize

    4KB

  • memory/2356-50-0x00000000071D0000-0x00000000071D1000-memory.dmp
    Filesize

    4KB

  • memory/2356-35-0x00000000070A0000-0x00000000070A1000-memory.dmp
    Filesize

    4KB

  • memory/2356-48-0x0000000007EF0000-0x0000000007EF1000-memory.dmp
    Filesize

    4KB

  • memory/2356-46-0x0000000007640000-0x0000000007641000-memory.dmp
    Filesize

    4KB

  • memory/2356-44-0x00000000075D0000-0x00000000075D1000-memory.dmp
    Filesize

    4KB

  • memory/2356-41-0x0000000007530000-0x0000000007531000-memory.dmp
    Filesize

    4KB

  • memory/2420-40-0x00000000738D0000-0x0000000073FBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2420-66-0x0000000005D00000-0x0000000005D01000-memory.dmp
    Filesize

    4KB

  • memory/2420-37-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/2420-45-0x00000000057C0000-0x00000000057C1000-memory.dmp
    Filesize

    4KB

  • memory/2420-38-0x000000000041E192-mapping.dmp
  • memory/2420-81-0x0000000001821000-0x0000000001822000-memory.dmp
    Filesize

    4KB

  • memory/2420-82-0x0000000007860000-0x0000000007861000-memory.dmp
    Filesize

    4KB

  • memory/2420-49-0x0000000001820000-0x0000000001821000-memory.dmp
    Filesize

    4KB

  • memory/2420-75-0x0000000006250000-0x0000000006251000-memory.dmp
    Filesize

    4KB

  • memory/2420-76-0x0000000007250000-0x0000000007251000-memory.dmp
    Filesize

    4KB

  • memory/2420-77-0x0000000007950000-0x0000000007951000-memory.dmp
    Filesize

    4KB

  • memory/2420-71-0x0000000005FB0000-0x0000000005FB1000-memory.dmp
    Filesize

    4KB

  • memory/2420-68-0x0000000005F50000-0x0000000005F51000-memory.dmp
    Filesize

    4KB

  • memory/2420-67-0x00000000064B0000-0x00000000064B1000-memory.dmp
    Filesize

    4KB

  • memory/2604-2-0x0000000002140000-0x0000000002141000-memory.dmp
    Filesize

    4KB

  • memory/2604-10-0x0000000004BA4000-0x0000000004BA6000-memory.dmp
    Filesize

    8KB

  • memory/2604-9-0x0000000004BA3000-0x0000000004BA4000-memory.dmp
    Filesize

    4KB

  • memory/2604-8-0x0000000004BA2000-0x0000000004BA3000-memory.dmp
    Filesize

    4KB

  • memory/2604-7-0x0000000004A40000-0x0000000004A49000-memory.dmp
    Filesize

    36KB

  • memory/2604-6-0x0000000004BB0000-0x0000000004BB1000-memory.dmp
    Filesize

    4KB

  • memory/2604-5-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/2604-3-0x00000000738D0000-0x0000000073FBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2604-4-0x0000000002120000-0x000000000212A000-memory.dmp
    Filesize

    40KB

  • memory/2928-11-0x0000000000000000-mapping.dmp
  • memory/3204-34-0x0000000000000000-mapping.dmp
  • memory/4000-22-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
    Filesize

    4KB

  • memory/4000-21-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
    Filesize

    4KB