Malicious PDF — malware analysis report

Static analysis result for SHA-256 89abe65cf957f09a…

MALICIOUS

PDF

38.8 KB Created: 2020-11-04 17:22:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59858d5a56238298a6a245684a27cc69 SHA-1: 18c48de12224c952531bd45ec21a0dbd3f21f74d SHA-256: 89abe65cf957f09a08129ad8c1ade38b9485173a82947ffb02c1cae5931d9e03
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document is designed to appear as a Maserati Ghibli owner's manual to trick users into clicking embedded links. Analysis indicates that one of the primary links, https://ttraff.link/123?keyword=maserati+ghibli+owners+manual, leads to known malicious redirector infrastructure. The document also contains a large number of external links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly supports the malicious verdict.

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.link/123?keyword=maserati+ghibli+owners+manual
    • https://jafakatulo.weebly.com/uploads/1/3/4/3/134353771/6dbb13c.pdf
    • https://tivurenufetoza.weebly.com/uploads/1/3/4/2/134235987/c27ce.pdf
    • https://julasunanuk.weebly.com/uploads/1/3/4/3/134308365/8a8fb849866.pdf
    • https://kazajiti.weebly.com/uploads/1/3/4/4/134456981/1537073.pdf
    • https://zalawevovupat.weebly.com/uploads/1/3/0/9/130969727/b34b548fa261374.pdf
    • https://sebiwijojemobod.weebly.com/uploads/1/3/4/0/134097571/rusekavelutibomeduj.pdf
    • https://zukinubugepar.weebly.com/uploads/1/3/4/5/134514864/wuwumofu_pivupajajugire_besitugera.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/289ea341-fe54-4c9e-8f97-236c87447758/worizeg.pdf
    • https://s3.amazonaws.com/wotodedaruzuk/zujapis.pdf
    • https://s3.amazonaws.com/genedesowul/fuxagutopepemujo.pdf
    • https://uploads.strikinglycdn.com/files/e3341e9d-3fb8-4fd2-91a6-42798e59c659/bigewufewexinewexumoji.pdf
    • https://s3.amazonaws.com/jubiferekaka/the_last_guardian_trophy_guide.pdf
    • https://uploads.strikinglycdn.com/files/05b674c7-2cff-4f81-873a-14a789b78ce1/98494828895.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_off00005978.bin
493910ec30f356376284074d320653583589876c690b202e4b54ec453c4fd73f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5978 5336 bytes
font_01_sfnt_off00006b93.bin
e6860cecc621b1ef02a1bdca9cb1b98ccda297e29eaf066076fce36c755a3429
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B93 10448 bytes