Analysis

  • max time kernel
    61s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    05-05-2021 19:06

General

  • Target

    0094e9329691b02305afeb49b73ed31f.exe

  • Size

    2.4MB

  • MD5

    0094e9329691b02305afeb49b73ed31f

  • SHA1

    e38cd5b500ee6db18594fcffb9e7860911340daf

  • SHA256

    50d2b07713cb4e000c40255a46ad201c50d8f8c804f8c227ec1fe74451562039

  • SHA512

    2a38bdf3c51ac9b071f49d35e8a2d0d3f95452d22b5518475f6dfc3f6f772c924545c1893269a292d79288ef75946b6bdbc84170acac2016098792424f9c91c6

Malware Config

Extracted

Family

redline

C2

5.188.118.35:19651

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RedLine

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

  • RedLine Payload 3 IoCs
  • Windows security bypass 2 TTPs
  • Nirsoft 7 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 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 8 IoCs
  • Checks installed software on the system 1 TTPs

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe
    "C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe"
    1⤵
    • Loads dropped DLL
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:280
    • C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
      "C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe" /SpecialRun 4101d8 2044
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1240
    • 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\0094e9329691b02305afeb49b73ed31f.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:828
    • C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe
      "C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1572

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

3
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\997c37cb-1c3a-40e3-acbf-ed5557bc5af4\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • memory/280-62-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
    Filesize

    4KB

  • memory/280-63-0x0000000000AB0000-0x0000000000B15000-memory.dmp
    Filesize

    404KB

  • memory/280-60-0x0000000000D30000-0x0000000000D31000-memory.dmp
    Filesize

    4KB

  • memory/828-79-0x00000000009A0000-0x00000000009A1000-memory.dmp
    Filesize

    4KB

  • memory/828-114-0x00000000062C0000-0x00000000062C1000-memory.dmp
    Filesize

    4KB

  • memory/828-115-0x0000000006310000-0x0000000006311000-memory.dmp
    Filesize

    4KB

  • memory/828-75-0x0000000000000000-mapping.dmp
  • memory/828-77-0x00000000009E0000-0x00000000009E1000-memory.dmp
    Filesize

    4KB

  • memory/828-78-0x0000000004810000-0x0000000004811000-memory.dmp
    Filesize

    4KB

  • memory/828-100-0x00000000061A0000-0x00000000061A1000-memory.dmp
    Filesize

    4KB

  • memory/828-80-0x00000000009A2000-0x00000000009A3000-memory.dmp
    Filesize

    4KB

  • memory/828-81-0x00000000025A0000-0x00000000025A1000-memory.dmp
    Filesize

    4KB

  • memory/828-82-0x0000000005240000-0x0000000005241000-memory.dmp
    Filesize

    4KB

  • memory/828-85-0x0000000005650000-0x0000000005651000-memory.dmp
    Filesize

    4KB

  • memory/828-90-0x00000000056B0000-0x00000000056B1000-memory.dmp
    Filesize

    4KB

  • memory/828-91-0x0000000006110000-0x0000000006111000-memory.dmp
    Filesize

    4KB

  • memory/828-92-0x000000007EF30000-0x000000007EF31000-memory.dmp
    Filesize

    4KB

  • memory/828-99-0x0000000006240000-0x0000000006241000-memory.dmp
    Filesize

    4KB

  • memory/1240-72-0x0000000000000000-mapping.dmp
  • memory/1572-116-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1572-117-0x0000000000416386-mapping.dmp
  • memory/1572-118-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1572-120-0x00000000045E0000-0x00000000045E1000-memory.dmp
    Filesize

    4KB

  • memory/2044-66-0x0000000000000000-mapping.dmp
  • memory/2044-68-0x0000000075041000-0x0000000075043000-memory.dmp
    Filesize

    8KB