Analysis

  • max time kernel
    47s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    08-06-2021 06:38

General

  • Target

    ce25050ecae70706d0e7b33d5304ab6b.exe

  • Size

    659KB

  • MD5

    ce25050ecae70706d0e7b33d5304ab6b

  • SHA1

    f1cb237e6daa21a01f9a6492495b8370625ef9f5

  • SHA256

    acd3e84a50002f93f4f6f3f98b4f0ec25e60889df8e0f15bfff55ddf089cb5c0

  • SHA512

    2be1cef57dff89191d7a4cb1b7b93a6036f6e7a2421568e318bf0103230664fbc690a0acb5c4708e9f7a7ba82d85559f0c6fe014c0dc1f8501d6b96099e3db2d

Malware Config

Extracted

Family

redline

Botnet

MIX 08.06

C2

185.215.113.17:18597

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce25050ecae70706d0e7b33d5304ab6b.exe
    "C:\Users\Admin\AppData\Local\Temp\ce25050ecae70706d0e7b33d5304ab6b.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
      edspolishpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:396

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe

    MD5

    b5e7e1fd00e34e49999f5b60286cd7aa

    SHA1

    3321f734fcf156bca17c7faadc7fe863a44fe849

    SHA256

    ec3c9e1878a43c6f5d7c0c5fd98ba61ca5e4d4ceae6ce3c7693e4c3a3c8283fe

    SHA512

    1e01e673aa1fa59a2ce5ddc9148ba15041dee4f00a83021bda32a9a60e27131098f57a69e27b306706e63e2ed0a96fe7d8c765942a3119d718c7afdc0f802e8c

  • \Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe

    MD5

    b5e7e1fd00e34e49999f5b60286cd7aa

    SHA1

    3321f734fcf156bca17c7faadc7fe863a44fe849

    SHA256

    ec3c9e1878a43c6f5d7c0c5fd98ba61ca5e4d4ceae6ce3c7693e4c3a3c8283fe

    SHA512

    1e01e673aa1fa59a2ce5ddc9148ba15041dee4f00a83021bda32a9a60e27131098f57a69e27b306706e63e2ed0a96fe7d8c765942a3119d718c7afdc0f802e8c

  • memory/308-61-0x0000000000550000-0x000000000061E000-memory.dmp

    Filesize

    824KB

  • memory/308-62-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/308-60-0x0000000075A31000-0x0000000075A33000-memory.dmp

    Filesize

    8KB

  • memory/396-66-0x00000000004E0000-0x00000000004FA000-memory.dmp

    Filesize

    104KB

  • memory/396-64-0x0000000000000000-mapping.dmp

  • memory/396-68-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/396-69-0x0000000004851000-0x0000000004852000-memory.dmp

    Filesize

    4KB

  • memory/396-67-0x00000000002D0000-0x00000000002FF000-memory.dmp

    Filesize

    188KB

  • memory/396-70-0x0000000004852000-0x0000000004853000-memory.dmp

    Filesize

    4KB

  • memory/396-72-0x0000000004853000-0x0000000004854000-memory.dmp

    Filesize

    4KB

  • memory/396-71-0x00000000020D0000-0x00000000020E9000-memory.dmp

    Filesize

    100KB

  • memory/396-73-0x0000000004854000-0x0000000004856000-memory.dmp

    Filesize

    8KB