Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1894c2ce0197235…

MALICIOUS

PDF

68.4 KB Created: 2020-08-03 14:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e5c3998bda9ae4105aa4cb136240b32 SHA-1: d641a26bdd5f9e64b14f85eca6e1bc739f3fe38d SHA-256: d1894c2ce019723574a28a8d0e7f9be7c1971f2d7c95085e1915971f3d6b43fb
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector. The document body, though partially corrupted, contains text referencing 'Amtrak california zephyr schedule pdf' and a URL pointing to a redirector, suggesting a phishing or malware delivery lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=amtrak+california+zephyr+schedule+pdf
    • http://files.sendlovewith.com/uploads/1/3/2/6/132695445/vudegovu_ropez.pdf
    • http://files.leatherworksfordogs.com/uploads/1/3/2/6/132682070/segunexevanisew.pdf
    • http://files.animalhealthcentre.ca/uploads/1/3/2/6/132696335/soduw_duraperesejawi_binesoto.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/44049452027.pdf
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/43404775152.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/winasoriraxemuxuvanomawa.pdf
    • https://cdn.shopify.com/s/files/1/0428/7728/8611/files/dekibumu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/fakek.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/9758811833.pdf
    • https://cdn.shopify.com/s/files/1/0433/8122/7672/files/jizovonuzoxozazo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4651/files/siluvekemono.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/lelivokagetexuwirumaro.pdf
    • https://cdn.shopify.com/s/files/1/0437/8011/2545/files/sexajutevunikisunagotena.pdf
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/manual_j_calculation.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_off0000bcba.bin
d523302a1fc1873e2e76f06541602280f243ea513daf5e8fb325f6d15cbb0ea7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCBA 5600 bytes
font_01_sfnt_off0000cfb0.bin
e08188af207626861f07589b0120d348a800decff9d96f19540c781977836dc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFB0 16356 bytes

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