Malicious PDF — malware analysis report

Static analysis result for SHA-256 95326713728721c0…

MALICIOUS

PDF

50.7 KB Created: 2020-08-10 07:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4498729d1d0b9c23418509241c2f5f0a SHA-1: 9e295f82615596b4621352d74e1e4fafcc291a5b SHA-256: 95326713728721c03fe207926964580e30f4aa1d170d36fccc6726bc1b9aa51d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=absalom+and+achitophel+summary+pdf+download'. This link is likely intended to redirect users to a malicious site or download further malware. The document body also contains this URL, reinforcing its role in the attack. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning to attract victims.

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=absalom+and+achitophel+summary+pdf+download
    • http://files.blog.deansoiltrek.com/uploads/1/3/1/0/131071137/9730103.pdf
    • http://pubiz.newportpoetry.com/uploads/1/3/0/9/130969742/1b8802.pdf
    • http://files.ansfun.com/uploads/1/3/1/8/131871740/runowagekegapoz.pdf
    • http://files.whateverhetellsyou.com/uploads/1/3/0/7/130775828/sigopavomokilofov.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/kunebinuxebemageruvo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/82847597683.pdf
    • https://cdn.shopify.com/s/files/1/0434/2343/2861/files/lidufomejuje.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/manuwubukezebixepijoniw.pdf
    • https://cdn.shopify.com/s/files/1/0437/9030/3381/files/beaufort_wind_scale.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3355/files/handbook_of_chemical_and_biological_warfare_agents.pdf
    • https://cdn.shopify.com/s/files/1/0431/4516/7008/files/76674939970.pdf
    • https://cdn.shopify.com/s/files/1/0440/9711/0168/files/survivors_2008_tv_series.pdf
    • https://cdn.shopify.com/s/files/1/0431/1564/3041/files/18187601230.pdf
    • https://cdn.shopify.com/s/files/1/0435/5630/7107/files/36617033249.pdf
    • https://cdn.shopify.com/s/files/1/0434/3323/0488/files/if_statement_c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a2de.bin
f55685e56a6e80eadeef40e4ec13e99392e3c398ba5737ce21699a5fe984b0a3
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA2DE 17640 bytes
font_00_sfnt_off00006c88.bin
b84f988bf3e7acdc7169bc316ed2b84b7e5e6a19ba9c2b305cb43d0cdafb6d88
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C88 5716 bytes
font_01_sfnt_off00007fe6.bin
60edeb33b4f97f92d52f092328d6a8f704f8fef0a17b2a8924b90dd4bb81742f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE6 10152 bytes