Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    28-09-2021 10:03

General

  • Target

    REVISED OFFER.exe

  • Size

    1MB

  • MD5

    a23d32321c572b877246453f426494d2

  • SHA1

    23f03a3533053b06acc915bcb33e9a8ebfdfa010

  • SHA256

    9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87

  • SHA512

    356ddaaf71c6d409450a558a51d8c43a8edcccf283fdf24d1c7d81a10bf21123e1b1abffae63694219bb7b2192704fd885d8a8a7409e481a6629763b7d5e2555

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload ⋅ 3 IoCs
  • Suspicious use of SetThreadContext ⋅ 3 IoCs
  • Modifies registry class ⋅ 2 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 44 IoCs
  • Suspicious behavior: GetForegroundWindowSpam ⋅ 1 IoCs
  • Suspicious behavior: MapViewOfSection ⋅ 5 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 26 IoCs
  • Suspicious use of FindShellTrayWindow ⋅ 10 IoCs
  • Suspicious use of SendNotifyMessage ⋅ 2 IoCs
  • Suspicious use of UnmapMainImage ⋅ 1 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    Modifies registry class
    Suspicious behavior: GetForegroundWindowSpam
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of FindShellTrayWindow
    Suspicious use of SendNotifyMessage
    Suspicious use of UnmapMainImage
    Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe
      "C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe"
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:504
      • C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe
        "{path}"
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        PID:800
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:396
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe"
        PID:1452

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Discovery

            Execution

              Exfiltration

                Impact

                  Initial Access

                    Lateral Movement

                      Persistence

                        Privilege Escalation

                          Replay Monitor

                          00:00 00:00

                          Downloads

                          • memory/396-132-0x0000000000000000-mapping.dmp
                          • memory/396-137-0x0000000004A50000-0x0000000004AE0000-memory.dmp
                          • memory/396-135-0x0000000004B60000-0x0000000004E80000-memory.dmp
                          • memory/396-133-0x0000000000F40000-0x0000000000F46000-memory.dmp
                          • memory/396-134-0x00000000009A0000-0x00000000009C9000-memory.dmp
                          • memory/504-121-0x00000000075B0000-0x00000000075B1000-memory.dmp
                          • memory/504-119-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
                          • memory/504-122-0x0000000008CF0000-0x0000000008CF1000-memory.dmp
                          • memory/504-123-0x0000000008D40000-0x0000000008D41000-memory.dmp
                          • memory/504-124-0x00000000047F0000-0x00000000047FE000-memory.dmp
                          • memory/504-125-0x0000000009100000-0x000000000917E000-memory.dmp
                          • memory/504-126-0x0000000009180000-0x00000000091AB000-memory.dmp
                          • memory/504-116-0x0000000005300000-0x0000000005301000-memory.dmp
                          • memory/504-117-0x0000000004E00000-0x0000000004E01000-memory.dmp
                          • memory/504-118-0x0000000004EA0000-0x0000000004EA1000-memory.dmp
                          • memory/504-114-0x00000000003D0000-0x00000000003D1000-memory.dmp
                          • memory/504-120-0x0000000004D70000-0x0000000004D71000-memory.dmp
                          • memory/800-129-0x0000000001310000-0x0000000001630000-memory.dmp
                          • memory/800-130-0x0000000001240000-0x0000000001251000-memory.dmp
                          • memory/800-128-0x000000000041D3A0-mapping.dmp
                          • memory/800-127-0x0000000000400000-0x0000000000429000-memory.dmp
                          • memory/1452-136-0x0000000000000000-mapping.dmp
                          • memory/2224-131-0x0000000005120000-0x000000000526A000-memory.dmp
                          • memory/2224-138-0x0000000005FB0000-0x0000000006101000-memory.dmp