Malicious PDF — malware analysis report

Static analysis result for SHA-256 e95bb67fab564837…

MALICIOUS

PDF

55.4 KB Created: 2020-08-14 09:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad7934ba088bec3d3856bb7329d3504e SHA-1: 22384b9cb937f6fa420910c3d302736d569b4629 SHA-256: e95bb67fab5648371a46836e9d938929517bef716bdd59da0f367ca458ff23a2
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=authority+hacker+pro+platinum', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and other links hosted on Shopify, suggesting a coordinated effort to lure users to malicious sites. The ML classifier also strongly indicated maliciousness.

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=authority+hacker+pro+platinum
    • http://mivodemo.a1glutenfreegals.com/uploads/1/3/2/6/132681352/5b00a627fe5.pdf
    • http://jegesi.icecreamstones.org/uploads/1/3/2/7/132712207/6255854.pdf
    • http://mojilof.shantellstricklanddavis.com/uploads/1/3/1/1/131164100/d3cae.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/91181531333.pdf
    • https://cdn.shopify.com/s/files/1/0428/9776/8614/files/sekiwebadis.pdf
    • https://cdn.shopify.com/s/files/1/0431/7957/3408/files/ata_chapter_25.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/65935002667.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/modewamifiju.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gokibaleginasesomedusuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/lei_das_autarquias_em_angola.pdf
    • https://cdn.shopify.com/s/files/1/0433/7329/7814/files/jipagukejuvobab.pdf
    • https://cdn.shopify.com/s/files/1/0429/3686/0839/files/datiguxamoreguba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/nawigosenanitavivexaji.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_off00009212.bin
9cb5c2b5be6a8ddc40294d9519c66127a1313debaaaf681305c07fa6188dbaf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9212 5148 bytes
font_01_sfnt_off0000a36b.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA36B 1800 bytes
font_02_sfnt_off0000abf9.bin
b5543befd80fc7fc89a79fa41501773b442c070de884486a1579a0710efe9bb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABF9 10760 bytes

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