Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-12-2020 17:05

General

  • Target

    da0baba4a78ada89b12bb09154ce8845.exe

  • Size

    594KB

  • MD5

    da0baba4a78ada89b12bb09154ce8845

  • SHA1

    3093fb1feace2a89311923c283083e61ef47cde8

  • SHA256

    c96f35457cc26c36104f053cb445c0835ead6434c3ce57adaae7911b2ab51d5c

  • SHA512

    932709db0d24285e220253bbb0262322dbd567fc77888541a0664d1604eae3221017471c0b401be1196a3fd428c03d28153a2a41cf89482465485ab93d8ae527

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da0baba4a78ada89b12bb09154ce8845.exe
    "C:\Users\Admin\AppData\Local\Temp\da0baba4a78ada89b12bb09154ce8845.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • \Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • memory/524-6-0x0000000000000000-mapping.dmp

  • memory/524-8-0x000000000521A000-0x000000000521B000-memory.dmp

    Filesize

    4KB

  • memory/524-9-0x0000000005300000-0x0000000005311000-memory.dmp

    Filesize

    68KB

  • memory/524-10-0x0000000006A90000-0x0000000006AA1000-memory.dmp

    Filesize

    68KB

  • memory/524-11-0x0000000073930000-0x000000007401E000-memory.dmp

    Filesize

    6.9MB

  • memory/524-12-0x0000000006960000-0x0000000006984000-memory.dmp

    Filesize

    144KB

  • memory/524-13-0x0000000006990000-0x00000000069B2000-memory.dmp

    Filesize

    136KB

  • memory/760-2-0x0000000004F6A000-0x0000000004F6B000-memory.dmp

    Filesize

    4KB

  • memory/760-3-0x0000000005200000-0x0000000005211000-memory.dmp

    Filesize

    68KB

  • memory/1512-4-0x000007FEF7040000-0x000007FEF72BA000-memory.dmp

    Filesize

    2.5MB