Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed2e02335ed2127…

MALICIOUS

PDF

34.3 KB Created: 2020-08-22 03:43:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9a387e2bd049fb85fb8ac343fa264d3 SHA-1: bcf8e5d88693ed5762d6314803df7702fd93582c SHA-256: 0ed2e02335ed21273646d1fdd05f8732076620b431d2eab0265483806228bcd9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This suggests a phishing or scam attempt, likely using the 'inventory aging report' lure to entice clicks. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=inventory+aging+report+in+tally
    • http://files.faithfamilymaui.com/uploads/1/3/0/9/130969061/8620631.pdf
    • http://files.counsellingpsychologist.services/uploads/1/3/0/9/130969555/7582248.pdf
    • http://files.homebyhayley.com/uploads/1/3/1/6/131606953/02d274df66052.pdf
    • http://repetedu.homeschoolbrew.com/uploads/1/3/0/8/130874030/3910324.pdf
    • http://files.supervisedvisitationtraining.com/uploads/1/3/1/0/131070518/ferejuzabar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/1778/1927/files/omen_control_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/dragonlover_s_guide_to_pern.pdf
    • https://cdn.shopify.com/s/files/1/0437/6192/6293/files/cross_me_color.pdf
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/20460199321.pdf
    • https://cdn.shopify.com/s/files/1/0433/7981/8661/files/dedodanilenijizewasemudu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/62603003545.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/86842770310.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/lonuzem.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/50509415269.pdf
    • https://cdn.shopify.com/s/files/1/0432/8062/9913/files/tamil_hd_1080p_movies_free_sites.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b88.bin
5ed6b93c48d915f4fe3b447cf2a77b8577ee7bc1e266824bd450a7f96f068638
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B88 4908 bytes
font_01_sfnt_off00005c54.bin
98dd3cb975e7e9b3829d851699a6ddfb28882c0da54890348378a93a7bc45032
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C54 9444 bytes