Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9eeec910df6f24…

MALICIOUS

PDF

42.7 KB Created: 2020-08-04 07:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44a9cf2615f0f844435bcd0f4a1e2aca SHA-1: 8d170531cc66c84f6e03b2709318b8060a91cd17 SHA-256: dd9eeec910df6f242d7b13fc25c8127b99a98c6831f84ad1f2be03ce6748eecf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=komplikasi+angina+pektoris+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs hosted on domains like cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site.

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=komplikasi+angina+pektoris+pdf
    • http://files.moderndayparablesrcf.com/uploads/1/3/1/0/131071166/4f6d43.pdf
    • http://files.crestviewcocwf.com/uploads/1/3/2/6/132695862/pedadijetos.pdf
    • http://files.apostlerontoliver.com/uploads/1/3/1/3/131380107/757c318efc7d.pdf
    • http://files.geoffalainllc.com/uploads/1/3/1/4/131406841/piloned_fesubufam_taxazepoben.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/gakajokufadelovozufinap.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/43002422525.pdf
    • https://cdn.shopify.com/s/files/1/0436/1145/5645/files/44041023212.pdf
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/battle_for_middle_earth_2_pc_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1935/files/69466315642.pdf
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/sasevazuziximutak.pdf
    • https://cdn.shopify.com/s/files/1/0433/4475/6901/files/mijezeweneduvakipam.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6482/files/86269087976.pdf
    • https://cdn.shopify.com/s/files/1/0430/6190/3517/files/48527623982.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/panivujimojitowopoto.pdf
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/jurefegokofufixepezuxoze.pdf
    • https://cdn.shopify.com/s/files/1/0431/2206/5557/files/barusegatituropewef.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_off00006788.bin
d1d1b0084081814ec947030fbd8a3f0c6148a1292312478ff3f1a0de36d89852		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6788 5396 bytes
font_01_sfnt_off000079c7.bin
239f8b79881df072875508f8a2f319dffa7965b0d1a89255868d36e1cc6dd625		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C7 10516 bytes

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