Malicious PDF — malware analysis report

Static analysis result for SHA-256 508a56164b9373cb…

MALICIOUS

PDF

41.8 KB Created: 2020-09-03 03:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53a70bc3bc6408ad3044a18569b49ae3 SHA-1: 19025f07a059d862c584b6381514fd6039d7f61d SHA-256: 508a56164b9373cbe567f03271dcc863cf70c393c375ad1f28cbadf100c7501e
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 pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments that appear to be related to a song, likely a lure. The primary heuristic indicates the PDF links to malicious redirector infrastructure, suggesting an attempt to lead the user to a harmful site.

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.ru/wix?keyword=dance+basanti+song++raagsong
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/62779768805.pdf
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/71986026315.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4564/files/80024611308.pdf
    • https://cdn.shopify.com/s/files/1/0438/2887/1318/files/html_dice_roller_code.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/sujekuxewar.pdf
    • https://cdn.shopify.com/s/files/1/0432/0044/6626/files/delhi_to_mussoorie_route_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/naruto_shippuden_movie_2_english_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/runotowawibozoluki.pdf
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/both_sides_now_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/15608320398.pdf
    • https://static.usrfiles.com/ugd/1cc777_e255112fef664bf59bc4a2eb4511f89f.pdf
    • https://static.usrfiles.com/ugd/accd1f_c55e1de80f614867818af420c46af014.pdf
    • https://static.usrfiles.com/ugd/de65f7_c28001ed8f7b4d6489eacf56a5d0db50.pdf
    • https://static.usrfiles.com/ugd/b8c837_dbf61614925c45b59beeea5a0c209236.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_off00005c57.bin
a3b90beecd393356143ec2e437d803d104dbaaaf109b4794067a97463c0ce423		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C57 5076 bytes
font_01_sfnt_off00006dac.bin
b6d93a45a34a04e9d1717d165b56533c19853ebb44c579dccb93444ee6bc2126		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAC 14584 bytes

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