Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0516426feec358e…

MALICIOUS

PDF

53.2 KB Created: 2020-08-25 07:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a539d25f1efc96d10f2264b928d0624 SHA-1: 917a3806c076d11c8f817d5e9a36de497b84f5ed SHA-256: f0516426feec358e30553ca12b1da340f6237635284a843c20e0aabfc0a57f6f
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, specifically pointing to 'https://ttraff.com/pify?keyword=pooking+billiards+city+mod+apk+android+1'. This URL is likely used to lure users into downloading malicious content, disguised as a modded application. The document body also contains this URL and numerous other links to PDF files, indicating a link farm strategy to improve search engine ranking for malicious content.

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=pooking+billiards+city+mod+apk+android+1
    • http://nupar.aspendivas.com/uploads/1/3/0/8/130874474/5822396.pdf
    • https://cdn.shopify.com/s/files/1/0429/8289/9871/files/hemangioma_capilar_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/baseball_boy_apk_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.pdf
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/9520024813.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/61820482031.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/mozegigomusulowilus.pdf
    • https://cdn.shopify.com/s/files/1/0435/3330/3976/files/cdtfa_use_tax_form_540.pdf
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/12192359611.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/mogafi.pdf
    • https://cdn.shopify.com/s/files/1/0461/9947/2277/files/aircraft_fuel_system_design.pdf
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/kotudaxot.pdf
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/66938702465.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/dijakarovubakizalabafijud.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006717.bin
b90b109c34db9b2d961be312c0c64f13ba4f5af9c83d6ae4556a72cb7f468167		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6717 2880 bytes
font_01_sfnt_off00007155.bin
daa502dc31953c4c465c1e89a52e947ce096f8501eb285ee7f240c69118a6f01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7155 5424 bytes
font_02_sfnt_off0000839f.bin
8218a70c419dcaf866e13f50f76d12eb3bf8e0da277fe5ad1c5cf86d2e25f6b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x839F 1832 bytes
font_03_sfnt_off00008c6c.bin
75143946e9caabd8f8c8cdcec7c84c287fdfa3d3c587d4a97ca8613cc71b3bd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C6C 14116 bytes
font_04_sfnt_off0000b8ab.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8AB 4324 bytes

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