Malicious PDF — malware analysis report

Static analysis result for SHA-256 079d9798febb916b…

MALICIOUS

PDF

36.0 KB Created: 2020-08-12 19:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 14192a5c675ea01fbfc7abf8200eaeff SHA-1: 5ce76679c310b04ce4cbb4a4fa4ccd0fa6887e3b SHA-256: 079d9798febb916b45a10a63fc725d0d2b27b7524061ec4056973d941cd62223
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating an attempt to drive traffic to potentially harmful content. The ML classifier strongly flagged this PDF as malicious. The embedded link `https://ttraff.cc/pify?keyword=buku+agama+islam+kelas+12+pdf` is a primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution.

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.cc/pify?keyword=buku+agama+islam+kelas+12+pdf
    • http://pamatofek.mfala.org/uploads/1/3/0/7/130739919/4563161.pdf
    • http://mubakiti.laracuisine.com/uploads/1/3/1/3/131379578/xisasegulapizim_zabunoso.pdf
    • http://files.novicc.org/uploads/1/3/0/7/130775719/dodapozos.pdf
    • http://files.rrcleaningplus.com/uploads/1/3/1/3/131398093/xitokotigapad_mibavebuwasi_fonidu_funav.pdf
    • http://files.hifiaddiction.co.uk/uploads/1/3/1/1/131163841/jezerufukizekibugolu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/47200876933.pdf
    • https://cdn.shopify.com/s/files/1/0440/6371/9574/files/vyond_comedy_world_requestly.pdf
    • https://cdn.shopify.com/s/files/1/0440/4235/4853/files/6741514737.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/96551993736.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/wigojalomamibaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6830/9152/files/rasamifumevifituve.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/tufibaliwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5679/0695/files/32050147817.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/radosivepatilab.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/21841457081.pdf
    • https://cdn.shopify.com/s/files/1/0430/1137/5267/files/xiwatediramibavij.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_off00004d2a.bin
8296d68aad3d6ec858891da3be8e1e230106eb9b999d43ee9cb357d1eecfa7ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2A 5560 bytes
font_01_sfnt_off0000602b.bin
e7806a1974e8e074a6122b35b35cb5146955bf201a36562844711a15f2387658
pdf-font-stream PDF embedded font (sfnt) at offset 0x602B 10376 bytes