Malicious PDF — malware analysis report

Static analysis result for SHA-256 0742d4be4ec5e671…

MALICIOUS

PDF

46.0 KB Created: 2020-07-31 11:03:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f57caf82390afe75403bd8906074afd8 SHA-1: c473ca7e923a24f7806acac5879e46b19463c974 SHA-256: 0742d4be4ec5e6716ff2e0d389a06cabef043f8d47df7b4ad7c5f703a588cc0e
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a book PDF. The presence of many external links, including a link farm, indicates an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. No scripts were extracted, but the PDF structure itself is designed to redirect users to potentially harmful content.

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.ru/pify?keyword=the+road+to+freedom+book+pdf
    • http://files.lost-in-the-50s.com/uploads/1/3/2/7/132740378/roreletob_libumobe_tonuxi.pdf
    • http://files.westervillejayceepool.com/uploads/1/3/2/3/132303317/5004889.pdf
    • http://files.niavanabelgians.com/uploads/1/3/1/4/131436991/b360c5ff.pdf
    • http://files.emilygilldesigns.com/uploads/1/3/1/1/131164386/gikurotevamedok_fotix.pdf
    • http://files.myturnpoint.com/uploads/1/3/0/8/130813557/3767478.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/8745/2576/files/47670959210.pdf
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/79941127535.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/68056446164.pdf
    • https://cdn.shopify.com/s/files/1/0434/1530/6405/files/dovozopadugatisewarimawin.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/kukixu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9639/files/pefubugujesevixew.pdf
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/kerojuzejad.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/97953049155.pdf
    • https://cdn.shopify.com/s/files/1/0437/6572/7384/files/pukofosodusofagopurozimul.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/notexunosude.pdf
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/pifaguf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/82175551376.pdf
    • https://cdn.shopify.com/s/files/1/0433/7847/5162/files/soboxejekefaresevozabom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/44972050390.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_off000076eb.bin
d188881aed5a79d667cb5c30f37514d7ae9201f670485275f65280ab141d881e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76EB 4856 bytes
font_01_sfnt_off00008768.bin
b2f518b8741587fc59a816d6d22966a240b12a969dd547f372378ef0a3970fe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8768 10384 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.