Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c48ae3fe619660…

MALICIOUS

PDF

46.1 KB Created: 2020-08-03 06:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1eb3634026761c6bd0634ce089f4395 SHA-1: 7f69e475cf1d571dcac7cc0e5f4616fa8f284e05 SHA-256: e4c48ae3fe619660491a8e52ac0451fdf451205010a974c5eccc767d7f471139
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector pointing to 'https://ttraff.com/pify?keyword=dishonored+2+cheats'. Another critical heuristic identified a PDF link farm, indicating a large number of outbound links. The ML classifier also strongly flagged this PDF as malicious. The presence of these link farms and redirectors suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=dishonored+2+cheats
    • http://files.eaglemountainvolleyball.com/uploads/1/3/1/3/131379540/37adb.pdf
    • http://files.itisifairytales.com/uploads/1/3/1/4/131483143/sedapamumipos.pdf
    • http://files.staartyou.com/uploads/1/3/0/8/130814492/6736a5b6dd06c.pdf
    • http://files.unbarbadosandoecs.org/uploads/1/3/0/7/130776619/dinimadaxapepe.pdf
    • http://files.spinecarechiropractic.net/uploads/1/3/1/3/131384018/30437.pdf
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/11866738742.pdf
    • https://cdn.shopify.com/s/files/1/0435/6240/1947/files/43989929878.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/buwagafolabalokavaxalos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/46520598113.pdf
    • https://cdn.shopify.com/s/files/1/0439/3032/1051/files/gawubugureveno.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/73667451197.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2541/files/81404079508.pdf
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/xafekuxuzawo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4197/files/93280969711.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0046/files/71235209019.pdf
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/10106474364.pdf
    • https://cdn.shopify.com/s/files/1/0438/4499/3181/files/48273776498.pdf
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/gitituvibazupuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdf
    • https://cdn.shopify.com/s/files/1/0431/0859/7927/files/kavizumagevodapo.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_off00007740.bin
61b9bbd04241b4522328e4da6b0c7268db4b6f7f7f619a530d514f6970ed653a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7740 5124 bytes
font_01_sfnt_off000088a3.bin
35484c01aeb34d5e015f96a529898252ec6fee262c6240a790302a9e572e4693		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88A3 10080 bytes

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