Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e54def4e3000ca5…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 21:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6bdabef75ad41eea96b1a66df64f2b4 SHA-1: 3d79489ef4be6bd29e9d16d1014ec239eac5c553 SHA-256: 3e54def4e3000ca5b4b3b9350da5d62739df5fee26da5fa8760ad41d2d256cbd
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'Catholic baptism certificate template'. The primary malicious URL identified is ttraff.com, which is known for redirecting to malicious content. The presence of a large number of external links, many hosted on Shopify, indicates a link farm designed to distribute malicious payloads or phish for information.

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=catholic+baptism+certificate+template
    • http://files.bestfenceonline.com/uploads/1/3/2/6/132682153/ferutamulafirunexamu.pdf
    • http://files.wvdeca.org/uploads/1/3/0/8/130814466/xumemoluturobo.pdf
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdf
    • http://files.martinspitznagel.com/uploads/1/3/1/3/131379567/rogitol.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/19203889042.pdf
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/99021336568.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/26792868644.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/funomoziz.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/86059052762.pdf
    • https://cdn.shopify.com/s/files/1/0428/6640/9638/files/zamzar_to_jpg.pdf
    • https://cdn.shopify.com/s/files/1/0453/2230/5691/files/aruba_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/guxexetumadizebawamoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/7550/2234/files/sholawat_ahbabul_musthofa_kudus.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/hungry_shark_full_version_apk_free.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_off00006d61.bin
1198e3c2b6028c01d2900f66d694c59cd6ad8e4ba6d2adc5abd8462e556d2d4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D61 5300 bytes
font_01_sfnt_off00007f3b.bin
58fe5809deb2087420a3f280a7904c1fc509f5bac24fe11dd063d16696420ba9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3B 9868 bytes