Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccadecd46f89d6e0…

MALICIOUS

PDF

46.8 KB Created: 2020-08-21 22:17:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66f1f5d370d4903b45c16d2326776e33 SHA-1: bac2e4544c3bec4a50c0eec7126ba5e9db1d8613 SHA-256: ccadecd46f89d6e00a3efb281757255f10af31f080de50b262d36e486dfede20
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Apoteka beograd informacije o lekovima' and the malicious URL, suggesting a lure related to pharmaceutical information. The primary malicious URL is https://ttraff.cc/pify?keyword=apoteka+beograd+informacije+o+lekovima, which is designed to redirect users to further 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.cc/pify?keyword=apoteka+beograd+informacije+o+lekovima
    • http://files.singerforallseasons.com/uploads/1/3/1/4/131407877/7186860.pdf
    • http://gasejuso.michiganfolkschool.org/uploads/1/3/1/6/131636948/sabez_zokojadidoj_rukejage_gijabo.pdf
    • http://zuvetezuz.seasoneddance.com/uploads/1/3/0/8/130813528/3162578.pdf
    • http://zemepo.kyocreations.com/uploads/1/3/1/8/131856214/zudumazesagib.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/49731679505.pdf
    • https://cdn.shopify.com/s/files/1/0436/9989/6475/files/zixariwowe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/xewidetenetowugapiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/4694/5436/files/69597685286.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/tururanesekazigojositeku.pdf
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/vigol.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/12448035328.pdf
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/51294998140.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/sony_str-_dn1050_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8257/0136/files/dotepewuxiwazisu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4380/5594/files/fafaxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5462/0059/files/audio_splitter_software.pdf
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/38648831215.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_off00006a6c.bin
c653c215d16a8740af90686e1ff946177cbfedebd802ebc1b673f969cdc6bfde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6C 5624 bytes
font_01_sfnt_off00007d88.bin
aabc5950d930e28780bd088f5736539f4414fb7ddb706bd9983966a94a99d35c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D88 16024 bytes

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