Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab609855facd265…

MALICIOUS

PDF

41.1 KB Authoring application: Scribus
MD5: af7de9099eb6968231fd1b7dc953baa2 SHA-1: 200050459e04a8bd9dfbc4239a2c8026079210eb SHA-256: fab609855facd2656c2ccc38e15d46e08cb778dcba79350629dac01795488d74
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which are likely intended to redirect users to malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. The document body, though partially corrupted, mentions 'Airline industry pestel analysis 2019', suggesting a lure to disguise the malicious nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://comptonkahui.com/uploads/1/3/0/8/130874077/kivurewufi-jewenamine-ratufu-fefawabebe.pdf
    • http://gamefarm.org/uploads/1/3/0/3/130313634/rotivajitiko-bojonanal-zitisafob.pdf
    • http://odontologiaparapets.com/uploads/1/3/0/4/130476564/5146245.pdf
    • http://flatlandtrailrunner.net/uploads/1/3/0/2/130274151/1138634.pdf
    • http://autobahnregistry.com/uploads/1/3/0/2/130289729/6103837.pdf
    • http://alexabuffini.com/uploads/1/3/0/8/130814923/d68a5628ef.pdf
    • http://western-union-nhantien-vn.online/uploads/1/3/0/6/130621832/8038330.pdf
    • http://ampedupelectric.net/uploads/1/3/0/7/130776049/311ff016.pdf
    • http://downdogz.com/uploads/1/3/0/5/130589209/3278268.pdf
    • http://guardianacademy.net/uploads/1/3/0/5/130551176/2073479.pdf
    • http://codebeforedawn.com/uploads/1/3/0/5/130540359/4854862.pdf
    • http://amethystambience.com/uploads/1/3/0/2/130292098/bumosevaveteve-tibaveretuligan-risum-nesut.pdf
    • http://eastpacificmarine.com/uploads/1/3/0/5/130551141/zepadilapobit.pdf
    • http://cpanel.fionashort.co.uk/uploads/1/3/0/2/130289474/9366411.pdf
    • http://cass-travis-art.com/uploads/1/3/0/6/130620745/goxituxaz.pdf
    • http://12stonesmoldcleaning.com/uploads/1/3/0/2/130287930/sajixemebopuzagavibi.pdf
    • http://www.xtremeresolutions.com/uploads/1/3/0/5/130539449/mazugifuruxugip_remepatebufun_vujefubedut.pdf
    • http://www.cyberbearcomputers.com/uploads/1/3/0/7/130776120/130776120.html#airline+industry+pestel+analysis+2019

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d14.bin
9870c884dd6e450fb42143a6e17b42e5e3dc59c66b8cad80c6eb7379339c2a6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D14 16120 bytes
font_01_sfnt_off00004469.bin
4fe1690cc0a1f4df054686845bcb509dc5a4e0551858fce1856e8840eefc3724		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4469 7676 bytes

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