Analysis

  • max time kernel
    130s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04-11-2020 06:43

General

  • Target

    5a240ce26f7d1fe78e27aeaa03d9fc5c.exe

  • Size

    582KB

  • MD5

    5a240ce26f7d1fe78e27aeaa03d9fc5c

  • SHA1

    e10aee112742f06ba80f407f42d225faf5f7e638

  • SHA256

    82987b4e0e8c616f7100a6421800b283354a22882b83abe0375acb24a924aaa8

  • SHA512

    97a8c7f9480fa41cbeb550f89222554050ac1844da33d011e3e6cbbf9daadf7a9a35cc54f8f186df5114ac0d0aa1c2c680fbc1e4b475a393eb70ea0e75cdbbd8

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 62 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 15 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a240ce26f7d1fe78e27aeaa03d9fc5c.exe
    "C:\Users\Admin\AppData\Local\Temp\5a240ce26f7d1fe78e27aeaa03d9fc5c.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 756
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 696
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1208
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1568
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1576
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:820
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4664
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 536
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:1772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 660
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1256
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2348
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1328
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1328
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1224
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1608
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1888
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1904
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1908
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:204

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    651026d3f1f58ca2718cac5272a53192

    SHA1

    f975cb02d4f348ae6cd3fd112b746445bd653e87

    SHA256

    fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931

    SHA512

    9fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    651026d3f1f58ca2718cac5272a53192

    SHA1

    f975cb02d4f348ae6cd3fd112b746445bd653e87

    SHA256

    fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931

    SHA512

    9fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3

  • memory/204-151-0x0000000004F90000-0x0000000004F91000-memory.dmp
    Filesize

    4KB

  • memory/204-156-0x00000000056C0000-0x00000000056C1000-memory.dmp
    Filesize

    4KB

  • memory/820-98-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
    Filesize

    4KB

  • memory/820-95-0x0000000004470000-0x0000000004471000-memory.dmp
    Filesize

    4KB

  • memory/1772-114-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

  • memory/1772-107-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/1772-106-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/1960-19-0x0000000004620000-0x0000000004621000-memory.dmp
    Filesize

    4KB

  • memory/1960-23-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/2348-171-0x0000000004240000-0x0000000004241000-memory.dmp
    Filesize

    4KB

  • memory/2348-191-0x0000000004A70000-0x0000000004A71000-memory.dmp
    Filesize

    4KB

  • memory/2372-126-0x00000000049E0000-0x00000000049E1000-memory.dmp
    Filesize

    4KB

  • memory/2372-120-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/2380-119-0x0000000004B90000-0x0000000004B91000-memory.dmp
    Filesize

    4KB

  • memory/2380-131-0x0000000005340000-0x0000000005341000-memory.dmp
    Filesize

    4KB

  • memory/2496-146-0x0000000004800000-0x0000000004801000-memory.dmp
    Filesize

    4KB

  • memory/2496-150-0x0000000005030000-0x0000000005031000-memory.dmp
    Filesize

    4KB

  • memory/2628-236-0x0000000005440000-0x0000000005441000-memory.dmp
    Filesize

    4KB

  • memory/2628-212-0x0000000004C00000-0x0000000004C01000-memory.dmp
    Filesize

    4KB

  • memory/2644-6-0x00000000048A0000-0x00000000048A1000-memory.dmp
    Filesize

    4KB

  • memory/2644-5-0x00000000045B0000-0x00000000045B1000-memory.dmp
    Filesize

    4KB

  • memory/2644-3-0x00000000041B0000-0x00000000041B1000-memory.dmp
    Filesize

    4KB

  • memory/2644-2-0x00000000041B0000-0x00000000041B1000-memory.dmp
    Filesize

    4KB

  • memory/3732-14-0x00000000043C0000-0x00000000043C1000-memory.dmp
    Filesize

    4KB

  • memory/3732-17-0x0000000004A00000-0x0000000004A01000-memory.dmp
    Filesize

    4KB

  • memory/4072-288-0x0000000004680000-0x0000000004681000-memory.dmp
    Filesize

    4KB

  • memory/4072-300-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
    Filesize

    4KB

  • memory/4160-264-0x0000000004690000-0x0000000004691000-memory.dmp
    Filesize

    4KB

  • memory/4160-279-0x0000000005040000-0x0000000005041000-memory.dmp
    Filesize

    4KB

  • memory/4180-7-0x0000000004C80000-0x0000000004C81000-memory.dmp
    Filesize

    4KB

  • memory/4180-10-0x00000000052B0000-0x00000000052B1000-memory.dmp
    Filesize

    4KB

  • memory/4664-113-0x0000000000000000-mapping.dmp
  • memory/4664-222-0x0000000000000000-mapping.dmp
  • memory/4664-117-0x0000000000000000-mapping.dmp
  • memory/4664-116-0x0000000000000000-mapping.dmp
  • memory/4664-127-0x0000000000000000-mapping.dmp
  • memory/4664-128-0x0000000000000000-mapping.dmp
  • memory/4664-125-0x0000000000000000-mapping.dmp
  • memory/4664-129-0x0000000000000000-mapping.dmp
  • memory/4664-130-0x0000000000000000-mapping.dmp
  • memory/4664-115-0x0000000000000000-mapping.dmp
  • memory/4664-133-0x0000000000000000-mapping.dmp
  • memory/4664-134-0x0000000000000000-mapping.dmp
  • memory/4664-132-0x0000000000000000-mapping.dmp
  • memory/4664-135-0x0000000000000000-mapping.dmp
  • memory/4664-136-0x0000000004260000-0x0000000004284000-memory.dmp
    Filesize

    144KB

  • memory/4664-137-0x0000000006A30000-0x0000000006A31000-memory.dmp
    Filesize

    4KB

  • memory/4664-299-0x0000000000000000-mapping.dmp
  • memory/4664-141-0x0000000004410000-0x0000000004432000-memory.dmp
    Filesize

    136KB

  • memory/4664-142-0x0000000006F30000-0x0000000006F31000-memory.dmp
    Filesize

    4KB

  • memory/4664-143-0x0000000006930000-0x0000000006931000-memory.dmp
    Filesize

    4KB

  • memory/4664-145-0x0000000006970000-0x0000000006971000-memory.dmp
    Filesize

    4KB

  • memory/4664-298-0x0000000000000000-mapping.dmp
  • memory/4664-149-0x00000000069C0000-0x00000000069C1000-memory.dmp
    Filesize

    4KB

  • memory/4664-112-0x0000000000000000-mapping.dmp
  • memory/4664-111-0x0000000000000000-mapping.dmp
  • memory/4664-154-0x0000000007660000-0x0000000007661000-memory.dmp
    Filesize

    4KB

  • memory/4664-110-0x0000000000000000-mapping.dmp
  • memory/4664-109-0x0000000000000000-mapping.dmp
  • memory/4664-180-0x0000000000000000-mapping.dmp
  • memory/4664-179-0x0000000000000000-mapping.dmp
  • memory/4664-182-0x0000000000000000-mapping.dmp
  • memory/4664-184-0x0000000000000000-mapping.dmp
  • memory/4664-186-0x0000000000000000-mapping.dmp
  • memory/4664-188-0x0000000000000000-mapping.dmp
  • memory/4664-105-0x0000000072490000-0x0000000072B7E000-memory.dmp
    Filesize

    6.9MB

  • memory/4664-195-0x0000000000000000-mapping.dmp
  • memory/4664-199-0x0000000000000000-mapping.dmp
  • memory/4664-198-0x0000000000000000-mapping.dmp
  • memory/4664-202-0x0000000000000000-mapping.dmp
  • memory/4664-204-0x0000000000000000-mapping.dmp
  • memory/4664-104-0x00000000042B0000-0x00000000042B1000-memory.dmp
    Filesize

    4KB

  • memory/4664-219-0x0000000000000000-mapping.dmp
  • memory/4664-220-0x0000000000000000-mapping.dmp
  • memory/4664-118-0x0000000000000000-mapping.dmp
  • memory/4664-224-0x0000000000000000-mapping.dmp
  • memory/4664-227-0x0000000000000000-mapping.dmp
  • memory/4664-229-0x0000000000000000-mapping.dmp
  • memory/4664-232-0x0000000000000000-mapping.dmp
  • memory/4664-231-0x0000000000000000-mapping.dmp
  • memory/4664-103-0x0000000003F50000-0x0000000003F51000-memory.dmp
    Filesize

    4KB

  • memory/4664-239-0x0000000000000000-mapping.dmp
  • memory/4664-242-0x0000000000000000-mapping.dmp
  • memory/4664-244-0x0000000000000000-mapping.dmp
  • memory/4664-246-0x0000000000000000-mapping.dmp
  • memory/4664-251-0x0000000000000000-mapping.dmp
  • memory/4664-249-0x0000000000000000-mapping.dmp
  • memory/4664-253-0x0000000000000000-mapping.dmp
  • memory/4664-102-0x000000000237C000-0x000000000237D000-memory.dmp
    Filesize

    4KB

  • memory/4664-271-0x0000000000000000-mapping.dmp
  • memory/4664-272-0x0000000000000000-mapping.dmp
  • memory/4664-273-0x0000000000000000-mapping.dmp
  • memory/4664-274-0x0000000000000000-mapping.dmp
  • memory/4664-275-0x0000000000000000-mapping.dmp
  • memory/4664-276-0x0000000000000000-mapping.dmp
  • memory/4664-277-0x0000000000000000-mapping.dmp
  • memory/4664-278-0x0000000000000000-mapping.dmp
  • memory/4664-99-0x0000000000000000-mapping.dmp
  • memory/4664-280-0x0000000000000000-mapping.dmp
  • memory/4664-281-0x0000000000000000-mapping.dmp
  • memory/4664-282-0x0000000000000000-mapping.dmp
  • memory/4664-283-0x0000000000000000-mapping.dmp
  • memory/4664-285-0x0000000000000000-mapping.dmp
  • memory/4664-286-0x0000000000000000-mapping.dmp
  • memory/4664-287-0x0000000000000000-mapping.dmp
  • memory/4664-284-0x0000000000000000-mapping.dmp
  • memory/4664-294-0x0000000000000000-mapping.dmp
  • memory/4664-292-0x0000000000000000-mapping.dmp
  • memory/4664-293-0x0000000000000000-mapping.dmp
  • memory/4664-291-0x0000000000000000-mapping.dmp
  • memory/4664-295-0x0000000000000000-mapping.dmp
  • memory/4664-296-0x0000000000000000-mapping.dmp
  • memory/4664-297-0x0000000000000000-mapping.dmp
  • memory/4744-138-0x0000000003FA0000-0x0000000003FA1000-memory.dmp
    Filesize

    4KB

  • memory/4764-18-0x00000000042D0000-0x00000000042D1000-memory.dmp
    Filesize

    4KB

  • memory/4764-0-0x0000000002481000-0x0000000002483000-memory.dmp
    Filesize

    8KB

  • memory/4764-1-0x00000000041D0000-0x00000000041D1000-memory.dmp
    Filesize

    4KB