Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8702b5e98262236…

MALICIOUS

PDF

45.9 KB Created: 2020-08-25 18:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b47090502d9cdec1d80332f5fde1f84 SHA-1: 57f709ff2b3b81139a41a93371125c6f342b1db0 SHA-256: d8702b5e982622363f48bef228c25bdf552a6ee1c2787f497e4b2403cc6a8e3c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=monthly+analytics+report+template'. This URL is presented within the document body, disguised as a report template, to entice users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many of which point to external PDF files hosted on various domains. The primary malicious link likely serves as a gateway to further malicious content or exploits.

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.com/pify?keyword=monthly+analytics+report+template
    • http://files.cateringandcreations.net/uploads/1/3/0/8/130814513/9295549.pdf
    • http://nawilemo.charlidrawz.com/uploads/1/3/0/9/130969352/jerirededinali-vulagufolepi.pdf
    • http://files.saintjohnparishmorden.org/uploads/1/3/0/7/130775373/606.pdf
    • http://taresimu.buffaloblessings.com/uploads/1/3/1/3/131380213/bakorigavi-lazenazo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/causes_of_internet_addiction.pdf
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/wizovugubiroxewu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8767/6063/files/67526168284.pdf
    • https://cdn.shopify.com/s/files/1/0430/5305/6149/files/nedusakan.pdf
    • https://cdn.shopify.com/s/files/1/0438/6763/5867/files/pikubejawuzeradilisuzuxi.pdf
    • https://cdn.shopify.com/s/files/1/0447/7183/6055/files/sample_affidavit_of_bona_fide_marriage_letter_for_immigration.pdf
    • https://cdn.shopify.com/s/files/1/0431/9028/8535/files/jetirifikogekasogosot.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/pdf_xchange_lite.pdf
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/27760077973.pdf
    • https://cdn.shopify.com/s/files/1/0437/5573/3153/files/fully_classified_balance_sheet_narrative_format.pdf
    • https://cdn.shopify.com/s/files/1/0461/1227/6644/files/305474544.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_off000075b0.bin
f20710088499e9666db9af0a7f1b804fe4ddb2e9557257ee81cd4a2329a3f42c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B0 5280 bytes
font_01_sfnt_off00008781.bin
5c7deae2a0b2072b0cc2266046a5752b3ebc6546a789984ac4d90522faf67215		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8781 10396 bytes

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