Malicious PDF — malware analysis report

Static analysis result for SHA-256 f504f15b1e2e310d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-22 14:24:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 002458f0d5d95ef3e5cc4939f6935b22 SHA-1: 3461bc9905f97179ca67be5e6721301fb4f8ed54 SHA-256: f504f15b1e2e310da8f5ee4203f505f3712d4d9762507dce946fa57a3411efda
150 Risk Score

Malware Insights

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

The PDF contains a direct link to a known malicious redirector, ttraff.com, which is likely used to funnel users to a malicious site. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting a coordinated effort to trick users. The presence of numerous embedded links, many pointing to Shopify domains, indicates a link farm designed to improve search engine ranking for malicious content.

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=bewafa+punjabi+song++mr+jatt
    • http://dejek.myonebighappyphotography.com/uploads/1/3/1/6/131637881/551faf2daa7.pdf
    • http://ripibe.twinsrun.com/uploads/1/3/0/8/130814017/ef4eee.pdf
    • http://xiragid.donellestaples.com/uploads/1/3/2/6/132680813/nigunonabawuniw_letekafege_kuxiwevokedeb.pdf
    • http://sorekug.gulfcoastnstra.org/uploads/1/3/1/4/131453133/e17251244be5e.pdf
    • http://vuwobilo.gruppenbecquer.com/uploads/1/3/1/6/131637136/guzikoloven.pdf
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/ronevizisugajipavag.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/37780283305.pdf
    • https://cdn.shopify.com/s/files/1/0431/1272/6677/files/tigugagatewatetike.pdf
    • https://cdn.shopify.com/s/files/1/0431/0299/4586/files/wp_recipe_maker.pdf
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/english_test_for_grade_7_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/paradise_lost_file.pdf
    • https://cdn.shopify.com/s/files/1/0431/8612/7009/files/jkbose_date_sheet_private_12_class_2018.pdf
    • https://cdn.shopify.com/s/files/1/0435/9120/5021/files/73134782566.pdf
    • https://cdn.shopify.com/s/files/1/0435/4041/4615/files/55840122039.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0422/files/javututitubaw.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f0b.bin
f9a4a9eb34a89c35d09a8ccbfbabb7080324e169f5952260fd26da36678a36ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0B 5548 bytes
font_01_sfnt_off000061e7.bin
188ce2f8ee88cb909621bf2b6d9c16dc5f86f2dce0328ef1afa17d419770f66b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61E7 2532 bytes
font_02_sfnt_off00006cdb.bin
77709e71506848957f245e74f67a95406e6249e0d2f91a87ed2a771e6a1ac96b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDB 9988 bytes
font_03_sfnt_off00008f55.bin
dabf0ccc451caf4864c9b22ca91318a92e8f625b469dd0561edf59b451c7a792		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F55 18776 bytes

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