Malicious PDF — malware analysis report

Static analysis result for SHA-256 532519421d7c2d80…

MALICIOUS

PDF

34.7 KB Created: 2020-08-10 21:59:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84621fa888099c23cf62b6371e75c5ac SHA-1: 32ae37467e65be6f3f086fd62abc615df83c792c SHA-256: 532519421d7c2d80169185b16c357b367444634c788129c44aa61a90c9f9c22b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one heuristic specifically flagging a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. This suggests the primary goal is to redirect the user to malicious infrastructure. No scripts were extracted, limiting the ability to determine secondary actions.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.cc/pify?keyword=mas+alla+del+materialismo+espiritual+pdf
    • http://files.freightrainsandhorses.com/uploads/1/3/1/3/131379820/simex.pdf
    • http://files.karlahelbert.com/uploads/1/3/1/4/131438449/xaralilojofilugakof.pdf
    • http://files.saujs.co.za/uploads/1/3/1/3/131379615/kefumirelaxe_bimevulobuwovik_rovuneganez_vozixogeji.pdf
    • http://files.thewalkingtourcompany.com/uploads/1/3/2/6/132681993/matiporeromabuv-gedokufetagisa.pdf
    • http://files.al-anon-ulster-sullivan-ny.org/uploads/1/3/0/8/130813111/xodezuwitorig_tuwowep_julivaza.pdf
    • https://cdn.shopify.com/s/files/1/0436/4225/7561/files/affective_neuroscience_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/2504/7463/files/rimbaud_les_illuminations.pdf
    • https://cdn.shopify.com/s/files/1/0434/4171/7415/files/xugaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/kiparabez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0438/0891/5613/files/xujewezab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5772/files/gotikimetefasokiwirid.pdf
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/rewan.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/vukif.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6828/files/bogetovapopodo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049ff.bin
526bf5a7d203d7ce8b7531beb9fdc2f305a15f7d9beb190c02811ec9185ced13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49FF 5192 bytes
font_01_sfnt_off00005b8e.bin
4cfb09ddcb3d9801fad495b762d0e272df1344be16d7d679d36ee3aa83b596f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8E 10416 bytes

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