Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    29-01-2022 17:17

General

  • Target

    fb17c9f94dab9c005ef3b74afcd8a875ef739bcdec18c397951ca3ee9d4cdaca.exe

  • Size

    715KB

  • MD5

    b0a610e0ab1e591b9584a277258d8966

  • SHA1

    9dd06562a6faba0919e084ff321134b1f46bb813

  • SHA256

    fb17c9f94dab9c005ef3b74afcd8a875ef739bcdec18c397951ca3ee9d4cdaca

  • SHA512

    ca24b4f933ea1471f1205ea4b6e8621c1cd59a3ffb1165101002e681936791d001d2de5a49e0b0e03252d5a88a853c6e06d4d8177cd5d468b629890ef79cd167

Malware Config

Extracted

Family

redline

Botnet

mix29.01

C2

185.215.113.70:21508

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 2 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb17c9f94dab9c005ef3b74afcd8a875ef739bcdec18c397951ca3ee9d4cdaca.exe
    "C:\Users\Admin\AppData\Local\Temp\fb17c9f94dab9c005ef3b74afcd8a875ef739bcdec18c397951ca3ee9d4cdaca.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Roaming\Green\neofim.exe
      neofim.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1344

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Green\neofim.exe
    MD5

    9924ec2e562b526994d4598258070a1f

    SHA1

    9cdaf60d77b03dc3537139225972da888dc6b10c

    SHA256

    7a4cae5b0efdbc6db53e01f9d05331ccced3a337700b377f39c1afa7a74b2e38

    SHA512

    e7939b21f7bc12ba431cb2fc35ce46a468eba60db69a8cd7db4b75009c59598a605aedfcec9ff6d1b0ca2f2061b1ef0fa752d18819c6078399c9eb3cf1eb6b36

  • \Users\Admin\AppData\Roaming\Green\neofim.exe
    MD5

    9924ec2e562b526994d4598258070a1f

    SHA1

    9cdaf60d77b03dc3537139225972da888dc6b10c

    SHA256

    7a4cae5b0efdbc6db53e01f9d05331ccced3a337700b377f39c1afa7a74b2e38

    SHA512

    e7939b21f7bc12ba431cb2fc35ce46a468eba60db69a8cd7db4b75009c59598a605aedfcec9ff6d1b0ca2f2061b1ef0fa752d18819c6078399c9eb3cf1eb6b36

  • \Users\Admin\AppData\Roaming\Green\neofim.exe
    MD5

    9924ec2e562b526994d4598258070a1f

    SHA1

    9cdaf60d77b03dc3537139225972da888dc6b10c

    SHA256

    7a4cae5b0efdbc6db53e01f9d05331ccced3a337700b377f39c1afa7a74b2e38

    SHA512

    e7939b21f7bc12ba431cb2fc35ce46a468eba60db69a8cd7db4b75009c59598a605aedfcec9ff6d1b0ca2f2061b1ef0fa752d18819c6078399c9eb3cf1eb6b36

  • memory/1344-62-0x00000000001B0000-0x00000000001E9000-memory.dmp
    Filesize

    228KB

  • memory/1344-61-0x00000000002F0000-0x0000000000339000-memory.dmp
    Filesize

    292KB

  • memory/1344-63-0x0000000000400000-0x000000000049D000-memory.dmp
    Filesize

    628KB

  • memory/1344-64-0x0000000001F80000-0x0000000001FB4000-memory.dmp
    Filesize

    208KB

  • memory/1344-65-0x0000000002000000-0x0000000002032000-memory.dmp
    Filesize

    200KB

  • memory/1344-66-0x00000000047E1000-0x00000000047E2000-memory.dmp
    Filesize

    4KB

  • memory/1344-67-0x00000000047E2000-0x00000000047E3000-memory.dmp
    Filesize

    4KB

  • memory/1344-68-0x00000000047E3000-0x00000000047E4000-memory.dmp
    Filesize

    4KB

  • memory/1344-70-0x00000000047E4000-0x00000000047E6000-memory.dmp
    Filesize

    8KB

  • memory/1648-57-0x0000000000400000-0x00000000004D4000-memory.dmp
    Filesize

    848KB

  • memory/1648-56-0x0000000076001000-0x0000000076003000-memory.dmp
    Filesize

    8KB

  • memory/1648-55-0x0000000000690000-0x000000000075E000-memory.dmp
    Filesize

    824KB

  • memory/1648-54-0x00000000002F0000-0x000000000035B000-memory.dmp
    Filesize

    428KB