Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc423a5daa136d95…

MALICIOUS

PDF

40.4 KB Created: 2020-08-21 11:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a7c33cf6aa79a0cf7941a20d8836d46 SHA-1: 092fc91936acbfb3c88e343ca8615505594e81d6 SHA-256: bc423a5daa136d95eb6028192ad90c74e40f4fe558dfe9c7928c0a17947a0979
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs. The primary malicious URL identified is https://ttraff.cc/pify?keyword=atturo+az850+high+performance+tire+reviews, which is likely used to redirect the user to a malicious site. The document body itself is heavily obfuscated but contains the malicious URL.

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=atturo+az850+high+performance+tire+reviews
    • http://wepep.christinefrankdesigns.com/uploads/1/3/1/6/131637814/lazinetelet_zopusunap.pdf
    • http://wazopugow.petalsfromabelovedbridesbouquet.com/uploads/1/3/0/8/130874493/7949445.pdf
    • https://cdn.shopify.com/s/files/1/0435/8035/8815/files/air_supply_full_album_zip.pdf
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/lelug.pdf
    • https://cdn.shopify.com/s/files/1/0449/5550/0712/files/tecnologia_4._0_atlas.pdf
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/children_s_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/jagigokopopekibupejosaxel.pdf
    • https://cdn.shopify.com/s/files/1/0428/4756/8039/files/51223017426.pdf
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/pilopelipidof.pdf
    • https://cdn.shopify.com/s/files/1/0434/7078/2624/files/stick_figure_taking_off_glasses.pdf
    • https://cdn.shopify.com/s/files/1/0436/1378/2178/files/dukegirefo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4624/files/ganitobebujowelotanovo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7356/7894/files/susiwov.pdf
    • https://cdn.shopify.com/s/files/1/0439/1059/4728/files/nizofemivit.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_off00005ce1.bin
cd8f5ca34a1997c5b03f1435713c2eff02936b82f1e9d32b0595f0050318f517		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE1 6048 bytes
font_01_sfnt_off00007175.bin
f330aa17b0dd784448b3953c3e142b89aa962e6c369d5c25599e890d7f72baae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7175 10460 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.