Malicious PDF — malware analysis report

Static analysis result for SHA-256 2163ec021f60f6e2…

MALICIOUS

PDF

36.9 KB Created: 2020-09-17 00:14:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42536301c99f3fbc24a4a6177e59fec6 SHA-1: ba4b3a3126ec0072e182a5a789ea7926ff7f41dd SHA-256: 2163ec021f60f6e2b12df0c7d67b00e2b11b237b826fbf4befee840e49b0f275
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text and URLs that suggest a lure to external content. The presence of numerous PDF links, including those pointing to potentially malicious redirectors, indicates an attempt to direct the user to harmful sites.

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.club/wix?keyword=casey+at+the+bat+theme+lesson
    • http://ferim.ridleysredretrievers.com/uploads/1/3/0/7/130776257/gofunejabobetifolap.pdf
    • http://dixiz.duniaamir.com/uploads/1/3/1/4/131438019/kavibilazefi.pdf
    • http://files.josephlesliepace.com/uploads/1/3/1/4/131438784/212b19.pdf
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/ta_1775_bellefontaine_st_wapakoneta_oh_45895.pdf
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/mozilla_firefox_32_bit_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0438/9755/3064/files/erelong_crossword_puzzle_answer.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/48659495386.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/php_ajax_response_file.pdf
    • https://cdn.shopify.com/s/files/1/0427/8150/7740/files/3937708209.pdf
    • https://cdn.shopify.com/s/files/1/0483/1694/0451/files/1995_polaris_magnum_425_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8156/files/45094933700.pdf
    • https://cdn.shopify.com/s/files/1/0439/8999/1582/files/itil_v3_foundation_axelos.pdf
    • https://cdn.shopify.com/s/files/1/0433/4151/2855/files/43748912436.pdf
    • https://cdn.shopify.com/s/files/1/0437/2014/7093/files/company_logo_with_name_list.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_off00005444.bin
6854e9b85c42eb58a9ba9eda4dc82e967c00e7f2f920c4e068564660cdfa0898		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5444 4976 bytes
font_01_sfnt_off0000650d.bin
9bfbacd24792188cf673473023ef1dc58d6b6eb4fada520e8d396f35275acc11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x650D 9992 bytes

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