Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ea7cd55f87738f2…

MALICIOUS

PDF

44.6 KB Created: 2020-08-10 17:59:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40920499d1a105b08e827579220b5ee0 SHA-1: b28119409afed65b45b0950e34c0b84b3e0f9d10 SHA-256: 9ea7cd55f87738f2d01083700f99cd2a1cd7327071a93427b600656516355f45
120 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 pointing to 'https://ttraff.com/pify?keyword=pilates+for+beginners+at+home+pdf'. This indicates a phishing or scam attempt where the user is enticed to click the link, likely leading to further malicious content or exploitation. The document body also contains this URL, reinforcing the malicious intent. The presence of numerous other PDF links, while some resolve to benign content, suggests a link farm strategy to obscure the primary malicious destination.

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=pilates+for+beginners+at+home+pdf
    • http://files.mjganesh.com/uploads/1/3/1/0/131070483/6863648.pdf
    • http://files.nmtiasf.com/uploads/1/3/1/4/131407051/xetomekukuw.pdf
    • http://files.creativestudio23.com/uploads/1/3/2/6/132683330/9603035.pdf
    • https://cdn.shopify.com/s/files/1/0433/9521/9623/files/45445142309.pdf
    • https://cdn.shopify.com/s/files/1/0431/0492/7905/files/about_behaviorism_skinner_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/8028/5348/files/vegifipevop.pdf
    • https://cdn.shopify.com/s/files/1/0432/4402/8068/files/58077294922.pdf
    • https://cdn.shopify.com/s/files/1/0435/1927/9259/files/ridiwomusifezebona.pdf
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/wawafewesoziwasosaror.pdf
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/82089008338.pdf
    • https://cdn.shopify.com/s/files/1/0437/1031/6694/files/types_of_brick_bonding.pdf
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/ximot.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/warulunirurapesubimakoxiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5636/4711/files/bitigaritobebizisunaxi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061dd.bin
c78ac5ded6df36ae121d15520d3e181185ad7cba2d014cc9cee4f8f69885d0b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61DD 5384 bytes
font_01_sfnt_off000073e2.bin
3c3078c802f006a4ff59d4acdb9fc4d87e08637db5c2c796411e1c73f0e10676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E2 10380 bytes
font_02_sfnt_off00009763.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9763 4324 bytes

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