Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d7fae046f30290…

MALICIOUS

PDF

49.3 KB Created: 2020-11-04 22:09:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a45643ccbfcc7ce713d4bbf77dfc784e SHA-1: 3e3e4ca078cff6d9841ba2139df5ed8451ccfade SHA-256: d4d7fae046f3029021b27d11c5d3c0eabba4cd4cfe7861bcc5633ed99ff5f29b
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is a common tactic for phishing and malware distribution. The embedded URL `https://ttraff.me/123?keyword=bike+fit+guide+women` is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious link strongly suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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.
  • 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.me/123?keyword=bike+fit+guide+women
    • https://fupuvoriru.weebly.com/uploads/1/3/4/4/134494751/b6a4397dca4a.pdf
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/jupajufokevoju-nojajolixejebez.pdf
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/ruwupiwexisifi-fikaritowunu.pdf
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/5091572.pdf
    • https://lilawowawumoxo.weebly.com/uploads/1/3/1/4/131453384/gewobo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wulotugadag/merif.pdf
    • https://s3.amazonaws.com/felijaziremole/sorting_trash_worksheets.pdf
    • https://s3.amazonaws.com/rizijubovapuk/83654370558.pdf
    • https://cdn.shopify.com/s/files/1/0493/7108/7007/files/75162723120.pdf
    • https://s3.amazonaws.com/jebokizez/55372477377.pdf
    • https://uploads.strikinglycdn.com/files/12c46928-4405-43e7-9d22-bf4db3c3ca85/nosigeximafidiraturupig.pdf
    • https://uploads.strikinglycdn.com/files/c20ab1af-6b48-4dcd-944d-9e4fc44c7abc/13493170336.pdf
    • https://uploads.strikinglycdn.com/files/576978ee-04e0-4f93-8349-0004c429a00d/orange_county_choppers_death_in_the_family.pdf
    • https://uploads.strikinglycdn.com/files/ae1288da-f900-440a-a950-5a2644b4cea8/femolazibavenaxav.pdf
    • https://s3.amazonaws.com/jakujakula/47720751307.pdf
    • https://uploads.strikinglycdn.com/files/c67de1bc-2ab4-4e6f-a7b6-0e8a78b2ebed/38774985730.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007434.bin
d58e83f23d679ccb0d49e90cd187883f00a54008d510276981d7db846fd9c289
pdf-font-stream PDF embedded font (sfnt) at offset 0x7434 4796 bytes
font_01_sfnt_off00008491.bin
300378533df29afac73426f78cf50db9745bbaf2344d070676600aa8e73bb947
pdf-font-stream PDF embedded font (sfnt) at offset 0x8491 10920 bytes
font_02_sfnt_off0000a9d8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D8 4324 bytes