Malicious PDF — malware analysis report

Static analysis result for SHA-256 044e10db8df54326…

MALICIOUS

PDF

83.3 KB Created: 2020-08-28 02:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70ec372131b9abb9fc9f654b8097843a SHA-1: e1f3154d6c18aa1941584136d5c16b0f01009400 SHA-256: 044e10db8df5432666630675d2153fc112957381ca3498ab21cf51e157c1303d
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying it as a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=christian+israel+jordan+salazar'. While no scripts were extracted, the structure and heuristics strongly suggest the document's purpose is to lure users to malicious sites, likely for phishing or malware delivery.

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=christian+israel+jordan+salazar
    • http://toxiseju.kickapoograzinginitiative.com/uploads/1/3/1/4/131454549/4a9c147f0a8675.pdf
    • http://sepimud.cowichanmontessori.com/uploads/1/3/0/9/130969858/19138a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8930/5501/files/wuwusopugol.pdf
    • https://cdn.shopify.com/s/files/1/0459/1386/6389/files/aviary_photo_app_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/acs_organic_chemistry_exam.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/36264521658.pdf
    • https://cdn.shopify.com/s/files/1/0437/7955/5486/files/jawemi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/body_measurement_tracking_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/72976305278.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_off000108f5.bin
ce9ef1d6c3891975cc07b7a6f22567675f21c6727634db5ef2d7d1803e2de249
pdf-font-stream PDF embedded font (sfnt) at offset 0x108F5 4944 bytes
font_01_sfnt_off000119bd.bin
cbb43443f66719d63200073c28d7e73658540e09341ca26b4fef6ec7e4c565f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x119BD 11684 bytes