Malicious PDF — malware analysis report

Static analysis result for SHA-256 261a36a2df403d9f…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 08:42:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79e98591339504e653ad2e146649e7cc SHA-1: cca5a44a1ca3c97d947c7e0fb9646f6681e5b0ae SHA-256: 261a36a2df403d9f69ad7f0f1a4f459fec2c9b6a69f5322adb1ec82dbf2c745d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=install+xgboost+python`. This link is presented within the document body, likely disguised as a download button, aiming to trick the user into clicking it. The presence of a large number of external PDF links also suggests a link farm or SEO poisoning tactic. The document's content and structure strongly indicate a phishing or redirection attempt.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=install+xgboost+python
    • http://files.lightsoutlet.net/uploads/1/3/0/8/130874276/pubetikebimom.pdf
    • http://files.suzannepetrizzi.com/uploads/1/3/1/4/131437158/luzuku.pdf
    • http://files.poodledynasty.com/uploads/1/3/2/8/132814071/kovawafadalimazogegi.pdf
    • http://files.jilliancreativedesign.com/uploads/1/3/1/4/131454034/bajipate.pdf
    • https://cdn.shopify.com/s/files/1/0438/4020/9056/files/29377243656.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87913440599.pdf
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/63147859756.pdf
    • https://cdn.shopify.com/s/files/1/0434/7166/7360/files/zuvusemufuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2310/files/34373884689.pdf
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/52676982676.pdf
    • https://cdn.shopify.com/s/files/1/0435/5768/3349/files/sifidinoxularuxos.pdf
    • https://cdn.shopify.com/s/files/1/0435/4359/3109/files/minecraft_tinkers_modifiers.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/lalumewuvowujatuzo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/fizomogikuguroledalevo.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_off000060ff.bin
1d99132688a7894fc2b7e127aba1e372c3212aaca7b395b80ec3e9189fee3662		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 5232 bytes
font_01_sfnt_off000072d4.bin
03689fb55280caeeb6e5babd7645a89a5eb149781c9174a8029335c14c26b8c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72D4 14164 bytes

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