Analysis

  • max time kernel
    150s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    24-09-2021 12:12

General

  • Target

    PROFORMA-PDA 00GGTBGX00001A.xlsx

  • Size

    362KB

  • MD5

    3428e8b6d05df7add0dd9914432467a0

  • SHA1

    89cd998b04e84731ebd9ec51c3d72ef40b15249e

  • SHA256

    2a6b9eb5645b5e292c85eeb7236eb00361e74ece1e8debfb33873bc72461a67e

  • SHA512

    54844961e87bda2d971c82a506365cf62cdb9918fe98d379101d984883eaf6014e1ab564de5edc6b38f90838895da89a0ec973b5c2a5094833e179646581cd2d

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

9gdg

C2

http://www.dechocolate.online/9gdg/

Decoy

cao-catos.ca

humanityumbrella.com

heatherflintford.com

paddyjulian.com

venturedart.com

pimpyoursmile.com

shellbacklabs.com

acesteeisupply.com

socotrajeweltours.com

aykutozden.com

corncobmeal.com

lesbiansforever.com

picknock.com

pawspetreiki.com

waikikidesignco.com

lelittnpasumo4.xyz

billing-updating.info

barangdapo.com

gatorfirerescue.com

jmovt.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 12 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:1208
    • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\PROFORMA-PDA 00GGTBGX00001A.xlsx"
      2⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:1596
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Public\vbc.exe
      "C:\Users\Public\vbc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Users\Public\vbc.exe
        "C:\Users\Public\vbc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1816

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • C:\Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • C:\Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • \Users\Admin\AppData\Local\Temp\nsl707E.tmp\iynunsqb.dll
    MD5

    fdb24702ac3d38f586aa0343d71ba1d5

    SHA1

    662c61e11802ae875d864c6b8002ecfa5d7872f1

    SHA256

    e2bd42815d0ad61ad0f55056b9e78939a025f8b63c204afbf1ea1abf64adb71c

    SHA512

    26a86d2a7c7a4ef06e562e8cf2a40fd343b721539ef1808de6e1c6fa75a3bd1e2e3b85542aad76264792e776439e9dd1fe4fc282dee7a32948e2caa03a8e7051

  • \Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • \Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • \Users\Public\vbc.exe
    MD5

    0efbf49197257609b692c8579c7c15cd

    SHA1

    5390a1eb61e84c9d546178e7c43a810c309f9013

    SHA256

    6724b4abaf05bc011ee266d499d2eecadd61a305cd0a8e3c099193a3b9323a3c

    SHA512

    823c648b4a3a196d98446ca9c5177cbd8ac0c753e372daf789ca8f6b3848344160b859de9e0a353d252a37b112abe30f8f5e0a28ceae6da61d47928f80c19a1c

  • memory/516-60-0x0000000000000000-mapping.dmp
  • memory/944-56-0x00000000757B1000-0x00000000757B3000-memory.dmp
    Filesize

    8KB

  • memory/1208-72-0x0000000006D70000-0x0000000006EC8000-memory.dmp
    Filesize

    1.3MB

  • memory/1208-70-0x0000000006930000-0x00000000069FA000-memory.dmp
    Filesize

    808KB

  • memory/1596-54-0x0000000071141000-0x0000000071143000-memory.dmp
    Filesize

    8KB

  • memory/1596-55-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1596-53-0x000000002F3E1000-0x000000002F3E4000-memory.dmp
    Filesize

    12KB

  • memory/1596-73-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1816-65-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1816-66-0x000000000041D4A0-mapping.dmp
  • memory/1816-68-0x0000000000700000-0x0000000000A03000-memory.dmp
    Filesize

    3.0MB

  • memory/1816-69-0x0000000000260000-0x0000000000271000-memory.dmp
    Filesize

    68KB

  • memory/1816-71-0x00000000006A0000-0x00000000006B1000-memory.dmp
    Filesize

    68KB