Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e6a9726c683564…

MALICIOUS

PDF

42.7 KB Created: 2020-08-08 22:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e3ca3e90606e27b76e2971233ce7b0c SHA-1: 923fb45c1bcb06e83414409f36f66a3579aaee59 SHA-256: 56e6a9726c6835647172014365de377f31b7423ba10ee343cf8765ccc3c84f44
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external resources, a technique often used for SEO link farms or to redirect users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/wb?keyword=dinos%20pizza%20kassel%20speisekarte%20pdf. The document body, though partially corrupted, contains text related to a pizza menu, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.ru/wb?keyword=dinos%20pizza%20kassel%20speisekarte%20pdf
    • http://files.magnaggia.com/uploads/1/3/1/3/131379923/bacd222.pdf
    • http://gixas.sognocakes.com/uploads/1/3/1/4/131408100/bea63ea8c756df.pdf
    • http://files.bronzedoklahoma.com/uploads/1/3/1/8/131871704/minulogise.pdf
    • http://files.somabodytherapy.com/uploads/1/3/1/3/131398457/zomadeduxizomugatula.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/20731333603.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kilezolesosobusafo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/28738432417.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/17150262805.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.pdf
    • https://cdn.shopify.com/s/files/1/0440/8279/0552/files/rival_ice_cream_maker_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/38892767293.pdf
    • https://cdn.shopify.com/s/files/1/0434/0174/0439/files/74651249417.pdf
    • https://cdn.shopify.com/s/files/1/0428/6670/4550/files/hand_warmer_terraria.pdf
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/romifapumakivoka.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/65368689442.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/importance_of_globalization.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/52742142311.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/camus_plague.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_off00005af5.bin
5d604d5e144f8e46b206e50044cb011fe49f51d5c50e84e6040822b2386d0ba4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF5 4936 bytes
font_01_sfnt_off00006bd2.bin
6c58dd317f424adab020224adedabb2baf219aa086b8e7f3c2b34fddd6a78bc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD2 10736 bytes
font_02_sfnt_off00008f7f.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7F 4324 bytes