Malicious PDF — malware analysis report

Static analysis result for SHA-256 396c59ee095467b0…

MALICIOUS

PDF

33.3 KB Created: 2020-08-27 15:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b25a748f1645d7e04b0fe883f5ed0c74 SHA-1: e4db57f418d66072a38e236e230f4aa96fbfe5a4 SHA-256: 396c59ee095467b0f108b9d7cd826a4c401699308b9ab42df4efd86cca179bca
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains embedded links that redirect to a malicious domain, masquerading as a movie streaming service. The document body explicitly mentions 'My stupid boss full movie watch onli' and includes the malicious URL. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam attempt. No scripts were extracted, but the primary attack vector is the malicious URL.

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.
  • 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.
  • 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=my+stupid+boss+full+movie+watch+onli
    • http://files.figtreeafc.com/uploads/1/3/2/3/132302824/lelunela.pdf
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/kukakemewizedov.pdf
    • https://cdn.shopify.com/s/files/1/0450/7149/9416/files/minecraft_unblocked_no.pdf
    • https://cdn.shopify.com/s/files/1/0438/4063/5042/files/ftl_stasis_chamber.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/24084549194.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/16461247474.pdf
    • https://cdn.shopify.com/s/files/1/0430/8480/8346/files/karl_storz_c-_mac_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/kabene.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/texes_154_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3288/files/categories_of_students_with_special_needs.pdf
    • https://cdn.shopify.com/s/files/1/0434/9050/8960/files/46834492116.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/56510865883.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000431e.bin
e45ed7d3312ccad4e14abfce381ec6f65af2bea59acc428331ade5cf161e6250		 pdf-font-stream PDF embedded font (sfnt) at offset 0x431E 5696 bytes
font_01_sfnt_off0000567e.bin
23ee7d0bdf60dcc03b973e7174b53f2073c670fb2cf6574905bb89bb7db7c286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x567E 10052 bytes

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