Overview

overview

10

Static

static

3

kr.exe

windows7-x64

10

kr.exe

windows10-1703-x64

10

kr.exe

windows10-2004-x64

10

kr.exe

windows11-21h2-x64

10

Resubmissions

03-01-2022 15:51

220103-tagh5sbdh2 10

Analysis

  • max time kernel
    600s
  • max time network
    476s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-04-2024 13:36

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General

  • Target

    kr.exe

  • Size

    786KB

  • MD5

    899dc9cc6e7516536bf5e816e8cecf55

  • SHA1

    6c07fc00ed2202798194749aa8037bb0ad38bb00

  • SHA256

    5f84ad4413ad6dcdea0cb3aa206cc4df29e1bad9d9598912c323c931d568ac90

  • SHA512

    445016f0e37ee3ecec319b73713d083711608c044f855e16268f89c88d460e95d85b79d375534ac6b7a4a0e869c49470d49b7e325ff0507c550107d593ae688c

  • SSDEEP

    12288:vyxPJa2s86jofrWEuxjcZxyPq8tf8sQ+PRtj3lDsmMHj3N6eiaFmhL+JigR:vyxPJ/s86szWEuKiflOmMDhPEhL+lR

Score
10/10
osirisbankerbotnet

Malware Config

Signatures

  • Osiris
    bankerbotnetosiris
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\kr.exe
    "C:\Users\Admin\AppData\Local\Temp\kr.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
      "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
      2⤵
      • Executes dropped EXE
      PID:2636

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Proxy

1
T1090

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\x64btit.txt
    Filesize

    28B

    MD5

    cb3d7b753351a2716511832e5d7bb570

    SHA1

    2c483267cbfbc1d96bf2fc6b7518ad715b24652b

    SHA256

    14dee641c8d664c17579fe896aa1e2937bec74e5bc8590f1552c8293531c12d8

    SHA512

    29f50a533bfd38339cfb00d114a30bbc1f9e26b997f384b7db9334b0989882af116707e80156f10ad8fb4dc6e74da5d9cdbfae986713078103dca4e1c741a143

    Download Submit
  • \Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
    Filesize

    3KB

    MD5

    b4cd27f2b37665f51eb9fe685ec1d373

    SHA1

    7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

    SHA256

    91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

    SHA512

    e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

    Download Submit
  • memory/1996-19-0x00000000003A0000-0x00000000003BF000-memory.dmp
    Filesize

    124KB

    Download
  • memory/1996-8-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-21-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-7-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-28-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-9-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-4-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-29-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-3-0x0000000000A20000-0x0000000000AEA000-memory.dmp
    Filesize

    808KB

    Download
  • memory/1996-18-0x0000000010000000-0x0000000010016000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1996-2-0x0000000000920000-0x0000000000967000-memory.dmp
    Filesize

    284KB

    Download
  • memory/1996-20-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-6-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-5-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-15-0x0000000000A20000-0x0000000000AEA000-memory.dmp
    Filesize

    808KB

    Download
  • memory/1996-34-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-39-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-44-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-45-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-50-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-57-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-59-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-64-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-69-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1996-74-0x0000000002A20000-0x0000000002AC9000-memory.dmp
    Filesize

    676KB

    Download