Overview

overview

8

Static

static

1.exe

windows7_x64

1

1.exe

windows10_x64

8

Fallen.exe

windows7_x64

8

Fallen.exe

windows10_x64

8

Inte.exe

windows7_x64

8

Inte.exe

windows10_x64

8

LX64

windows7_x64

1

LX64

windows10_x64

1

Server.exe

windows7_x64

8

Server.exe

windows10_x64

8

hfs.exe

windows7_x64

6

hfs.exe

windows10_x64

6

hfs_1.exe

windows7_x64

6

hfs_1.exe

windows10_x64

6

hg

windows7_x64

1

hg

windows10_x64

1

java

windows7_x64

1

java

windows10_x64

1

moren.exe

windows7_x64

6

moren.exe

windows10_x64

6

Analysis

  • max time kernel
    152s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7v200217
  • submitted
    10-03-2020 00:09

Sharing

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General

  • Target

    Server.exe

  • Size

    96KB

  • MD5

    bfd0dcf57209068cc25907ff8ddc17e1

  • SHA1

    8b913990c8691231e1d8e249d6d7f9a59b85dc1e

  • SHA256

    8a16390f705599cacaba51ccf440f7f0a8320e614f71710a594312756788b28d

  • SHA512

    8a2838fd69419a249a37b7569a7c0333e8c36a71df0dc7b8ea414f87392b42e885bcd3fc41b6bda181c6f69d98a5a5367d06b8ff6c7d3e577ea4d2581c2bfe09

Score
8/10
persistence

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 4 IoCs
  • Deletes itself 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies service 2 TTPs 1 IoCs
    persistence
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Drops file in Program Files directory
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    PID:1864
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\Server.exe > nul
      2⤵
      • Deletes itself
      PID:1912
  • C:\Program Files\hufzuk\svchost.exe
    "C:\Program Files\hufzuk\svchost.exe"
    1⤵
    • Checks processor information in registry
    • Executes dropped EXE
    PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads