Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    19-07-2022 03:54

General

  • Target

    tmp.exe

  • Size

    641KB

  • MD5

    85be6547409011c0804230f2f09f7ca3

  • SHA1

    33eb9c66bb959332f963ab928fdbd655ac9e5e4e

  • SHA256

    1d9fc02237d06ae3ee5ea85ae14a05ab41ee99f03ac660e3f6360ac6864bf7fd

  • SHA512

    5e9e790f043d47bf21cd77caa556d18b957ab2c9587ef63836f84b8f42b102a8de085a2c6c2cf5a504b5a034c74dc25f2961b8415779311323e71c15b4432b7b

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nn40

Decoy

LYAg0yANOGEAGeaFOrA/

MQWuERZplP+VZy/uszI=

CF0oDN0JimIaGy/uszI=

ltJnyC+ReohYaiTvj1qbEA==

B9OkgdctVKBAFjSUaw==

sbDVwSZVVqVB11/deow8GA==

v1gHDe0pzno=

i+/0n2vHUfGPR98k77tukZ90MQ==

SUtCnbS96Qm21g==

8X9qzyt1dpAo31jXrXfKb49fBPY=

5KlPxqHzSstuFjSUaw==

0r/Kesv/zuanroxvNQW0Gm8=

FFgS7kfPYAqpdhhgRgnBJHY=

LgusAHrkrIoWr0FWIe2o/04UXPw=

vBq9Gvxa9wbKbS/uszI=

Z+q6HAZNNeqwwQ==

wbS4fMb06SjU5Kbseow8GA==

1mZEuZvJ/m0L9bof56PkkZ90MQ==

JCJIM74lHk/o+tiFOrA/

d14FrM8rGEgIzVkT67+3XaEh

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 6 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2016
    • C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1360-81-0x0000000006D60000-0x0000000006EC3000-memory.dmp
    Filesize

    1.4MB

  • memory/1360-72-0x00000000047D0000-0x00000000048C7000-memory.dmp
    Filesize

    988KB

  • memory/1360-69-0x0000000006BD0000-0x0000000006D5A000-memory.dmp
    Filesize

    1.5MB

  • memory/1360-79-0x0000000006D60000-0x0000000006EC3000-memory.dmp
    Filesize

    1.4MB

  • memory/1500-76-0x0000000000070000-0x000000000009C000-memory.dmp
    Filesize

    176KB

  • memory/1500-80-0x0000000000070000-0x000000000009C000-memory.dmp
    Filesize

    176KB

  • memory/1500-78-0x0000000000980000-0x0000000000A10000-memory.dmp
    Filesize

    576KB

  • memory/1500-77-0x0000000002130000-0x0000000002433000-memory.dmp
    Filesize

    3.0MB

  • memory/1500-73-0x0000000000000000-mapping.dmp
  • memory/1500-75-0x0000000000D00000-0x0000000000D22000-memory.dmp
    Filesize

    136KB

  • memory/2004-59-0x00000000009F0000-0x0000000000A22000-memory.dmp
    Filesize

    200KB

  • memory/2004-54-0x0000000000D90000-0x0000000000E36000-memory.dmp
    Filesize

    664KB

  • memory/2004-58-0x0000000005A70000-0x0000000005ADA000-memory.dmp
    Filesize

    424KB

  • memory/2004-57-0x0000000000600000-0x000000000060A000-memory.dmp
    Filesize

    40KB

  • memory/2004-56-0x0000000000590000-0x00000000005AC000-memory.dmp
    Filesize

    112KB

  • memory/2004-55-0x00000000765D1000-0x00000000765D3000-memory.dmp
    Filesize

    8KB

  • memory/2016-60-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2016-74-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2016-71-0x0000000000250000-0x0000000000261000-memory.dmp
    Filesize

    68KB

  • memory/2016-68-0x0000000000140000-0x0000000000151000-memory.dmp
    Filesize

    68KB

  • memory/2016-67-0x00000000008F0000-0x0000000000BF3000-memory.dmp
    Filesize

    3.0MB

  • memory/2016-66-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2016-63-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2016-64-0x000000000041F640-mapping.dmp
  • memory/2016-61-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB