Malicious PDF — malware analysis report

Static analysis result for SHA-256 080bf483c30695fd…

MALICIOUS

PDF

34.9 KB Created: 2020-08-02 15:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e43306ead017ceeabb5d172c28bbbc1 SHA-1: 9e5a1937f0bfe238b4869517c986789a946e60bf SHA-256: 080bf483c30695fdd49c6a9538e1832963e2e098190727f005f8cbde42dce0b4
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body text and embedded URLs indicate a lure for a fake reward, likely to trick users into visiting malicious sites. No scripts were extracted, but the presence of embedded URLs and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic strongly indicate malicious intent.

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=free+itunes+code+2016
    • http://files.metamorphose-collectifdarchitectes.com/uploads/1/3/1/8/131856173/a158e4ba.pdf
    • http://files.christinepr.co.uk/uploads/1/3/1/4/131437045/7115709.pdf
    • http://files.rainonmain.com/uploads/1/3/1/8/131856032/faxonanugetosokewo.pdf
    • http://files.drbakul.com/uploads/1/3/2/6/132682124/6528462.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/zoraxogijixapaxere.pdf
    • https://cdn.shopify.com/s/files/1/0431/0627/1394/files/komokabibibipotiwupe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/kisilijomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8506/1541/files/17363467189.pdf
    • https://cdn.shopify.com/s/files/1/0436/5818/2809/files/kepadejodij.pdf
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/43771628247.pdf
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/66680389315.pdf
    • https://cdn.shopify.com/s/files/1/0438/0455/7469/files/dakumutibipipipogi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/vipenodinone.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1449/files/gufopetigabiwajubonatefu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/jefufiwut.pdf
    • https://cdn.shopify.com/s/files/1/0435/0181/3915/files/24137100163.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_off00004d7d.bin
133185693e88a8738b29b3216d8980bbda2e157eeb2e1e00b970513beb6baeb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7D 5128 bytes
font_01_sfnt_off00005f06.bin
8e0e0aa8c14eae324f370aaca7d3193125209ad0f483d4132731fb16fe180cc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F06 9568 bytes

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