Malicious PDF — malware analysis report

Static analysis result for SHA-256 c479e2bb5d582533…

MALICIOUS

PDF

57.7 KB Created: 2020-08-28 22:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6269f9f8231de7875a23bf4ece3201c1 SHA-1: 766d2e4b4930e11f748570d7a6bad1d445c49f34 SHA-256: c479e2bb5d5825335cf972c14cdf369f1b481d40fab46d6a040a2f0b5d918cdb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wix?keyword=kya+khoob+lagti+ho+badi+sundar+dikht'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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/wix?keyword=kya+khoob+lagti+ho+badi+sundar+dikht
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/kugokefalonuvegezexiga.pdf
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/mechanical_engineering_summer_internship_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/11792419915.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/convert_arabic_to_english.pdf
    • https://cdn.shopify.com/s/files/1/0461/3852/3801/files/tapetujutiwobalugagu.pdf
    • https://static.usrfiles.com/ugd/b8c837_854d07ea873f45c381e7c44f16111951.pdf
    • https://static.usrfiles.com/ugd/b8c837_2baf3123d5914fa188f56659c9d14a21.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b8d0798de2a4789a4b0b27ac73622b5.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/48119009689.pdf
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/bioethics_in_biotechnology.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ba279458667455ebbb32874e2a526c4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d1850561e9a84fc1acdab69ed9269913.pdf
    • https://static.usrfiles.com/ugd/b8c837_0444f4670e5641759cd886d5c46e78c8.pdf
    • https://static.usrfiles.com/ugd/b8c837_05993c81144f4aa2b98467f1fba49b0c.pdf
    • https://static.usrfiles.com/ugd/b8c837_292e57e6f54449f19591ea43a18221a3.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_off000061bc.bin
78e05aba9571a671c6a290e155c351b22407af467f569eb8d4d419bbae70a0df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61BC 5364 bytes
font_01_sfnt_off000073e0.bin
91c7ca17607e6add0332dbdd9eecb5ec39f4b5aa53d2a222996056e0a579d4d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E0 4352 bytes
font_02_sfnt_off0000834b.bin
bdfddd13045cc7f6fa49324b3c7e999686a5b22d87e7895a95da7bd60bd5cabc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x834B 14572 bytes
font_03_sfnt_off0000b0e4.bin
52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0E4 16036 bytes
font_04_sfnt_off0000c588.bin
863e3c39cf32999ec24ac99f494b288785bb16f645353803ed26864db2d47546		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC588 4616 bytes

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