Malicious PDF — malware analysis report

Static analysis result for SHA-256 acdc3bc61ee76c2c…

MALICIOUS

PDF

122.3 KB Created: 2020-08-06 19:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9112c72ff968d12cb76b38044b9b1201 SHA-1: 412e6b33e4a7b281de26a685092c0639f28144ef SHA-256: acdc3bc61ee76c2c873c3d22d6611350590b9e03ab9147a1c302fbf78b0c4e1a
160 Risk Score

Malware Insights

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

The PDF contains a heuristic match for an advance-fee scam lure, and multiple embedded URLs. One URL, 'https://ttraff.cc/pify?keyword=marketing+pdf+notes', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=marketing+pdf+notes
    • http://lurevemav.monarchtennis.com/uploads/1/3/1/8/131871462/venumataloxu-sejofo-fazijixekuval.pdf
    • http://files.mevideography.com/uploads/1/3/2/6/132680813/7b1e2.pdf
    • http://files.rebeccabrillweitz.com/uploads/1/3/0/7/130740444/3305689.pdf
    • https://cdn.shopify.com/s/files/1/0437/9590/6721/files/fajifibijupufiladozozima.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/23576531299.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/26995785619.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/950238254.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/ponozifujapurekas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/vokadiwakitugopum.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/9945152712.pdf
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/the_nutcracker_suite_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/ruzikopozonola.pdf
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/mageputololo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/80932290055.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/54285857471.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_off0001a590.bin
4e5f7b9445965bdd6ab09c19b32a10e6f250e2304bd65eb440611d487c8219e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A590 5248 bytes
font_01_sfnt_off0001b78e.bin
30cb73efb72270605fc39ef3137b1e44acc7d5d1c5b1d1743a996562352ec005		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B78E 10620 bytes

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