Malicious PDF — malware analysis report

Static analysis result for SHA-256 27efce627569ae99…

MALICIOUS

PDF

43.9 KB Created: 2020-08-08 05:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49892ccb5b4d6d9856c35d8271eb6bf4 SHA-1: b796706aa9564c94bc089731d000e0fe7685b999 SHA-256: 27efce627569ae994d7618056aab9fdc64620dffcc642086818ef26be5439f6d
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'bodybuilding training program' and a URL that appears to be part of a link farm. The primary malicious link, https://ttraff.ru/pify?keyword=bodybuilding+training+program+for+beginners+pdf, is a critical finding.

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.ru/pify?keyword=bodybuilding+training+program+for+beginners+pdf
    • http://files.wmscanada.com/uploads/1/3/1/4/131412558/porojupoxugigezaromo.pdf
    • http://files.bellinghamdisciples.org/uploads/1/3/0/7/130775784/mitebo.pdf
    • http://dironebux.sweetkittyanime.com/uploads/1/3/1/3/131383483/793ee4400e2.pdf
    • http://files.invictaorg.com/uploads/1/3/0/7/130740502/sewuwafowuzol-konebejo-ziwatibikuma-resagixoxaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/92796804364.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/pdf_file_reader_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/laboratory_biosafety_and_biosecurity.pdf
    • https://cdn.shopify.com/s/files/1/0431/8766/7103/files/lesamorebifoneronisefawo.pdf
    • https://cdn.shopify.com/s/files/1/0450/4210/6518/files/actualit_socio_conomique_en_afrique_francophone.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/3.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/6811410582.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61286624564.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/71155771977.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6063/files/cubic_spline_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0436/5385/7433/files/gejuzenewojokawila.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8950/files/vezabipojupumu.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_off0000696a.bin
2cd3e16324155209da15b1e83af5db53c83d44b58af983cc2d83b553c709b149		 pdf-font-stream PDF embedded font (sfnt) at offset 0x696A 5652 bytes
font_01_sfnt_off00007c9e.bin
74a57c0448216e8b6b2872a68ffb883147240ad4989f449324c345acc8aa2e1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9E 11464 bytes

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