Analysis

  • max time kernel
    81s
  • max time network
    84s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08-06-2021 11:00

General

  • Target

    abdc87d538a0da9b573178af23583a23.exe

  • Size

    659KB

  • MD5

    abdc87d538a0da9b573178af23583a23

  • SHA1

    a3c1f31a926fe70819efa34315c37c18f208aeec

  • SHA256

    5508703e8970c1194a7dfe14dd08d7a931c4cee1e7d358e481d123cd79996585

  • SHA512

    011dcb3f97c67da98b96d2765b071bb33956c82c871dbba61953039dfa3535e41a2727456b14159cf6371b4dfe0d3f88ad155dd05f4cfd080dcd3bf1d3f291e5

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\abdc87d538a0da9b573178af23583a23.exe
    "C:\Users\Admin\AppData\Local\Temp\abdc87d538a0da9b573178af23583a23.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1848
    • 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:288

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/288-66-0x00000000003E0000-0x00000000003FA000-memory.dmp

    Filesize

    104KB

  • memory/288-64-0x0000000000000000-mapping.dmp

  • memory/288-67-0x0000000000590000-0x00000000005A9000-memory.dmp

    Filesize

    100KB

  • memory/288-68-0x0000000000230000-0x000000000025F000-memory.dmp

    Filesize

    188KB

  • memory/288-70-0x0000000004A31000-0x0000000004A32000-memory.dmp

    Filesize

    4KB

  • memory/288-69-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/288-71-0x0000000004A32000-0x0000000004A33000-memory.dmp

    Filesize

    4KB

  • memory/288-72-0x0000000004A33000-0x0000000004A34000-memory.dmp

    Filesize

    4KB

  • memory/288-73-0x0000000004A34000-0x0000000004A36000-memory.dmp

    Filesize

    8KB

  • memory/1848-62-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/1848-61-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/1848-60-0x00000000004E0000-0x00000000005AE000-memory.dmp

    Filesize

    824KB