Malicious PDF — malware analysis report

Static analysis result for SHA-256 3df73fa53913ad4d…

MALICIOUS

PDF

49.6 KB Created: 2020-08-09 01:39:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 910f7ba26b0aa3627d9190f1f54c7c74 SHA-1: 04427847c0563ad6a3df7703603e49b06aade6e3 SHA-256: 3df73fa53913ad4d2b7a88e9e2d25a341732494eae536ec31ed58f27d371585a
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, masquerading as a document download for "Ssc stenographer books pdf download". One of these links, https://ttraff.cc/pify?keyword=ssc+stenographer+books+pdf+download, redirects to known malicious infrastructure. The PDF also contains a mass external link farm, suggesting a SEO poisoning or link farm tactic to drive traffic to potentially malicious sites. No scripts were extracted, and the document body is heavily obfuscated, but the primary intent appears to be redirecting users to malicious URLs.

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=ssc+stenographer+books+pdf+download
    • http://files.monsterboylives.com/uploads/1/3/1/4/131406885/xenipif-wafoxobes-reponubuzesij-movezopufiba.pdf
    • http://kopipib.iconiacapital.com/uploads/1/3/1/4/131407089/xegozon-sevidozuze-nexidanofuxi-rekote.pdf
    • http://zawamipug.jenniferpolo.com/uploads/1/3/0/8/130814328/9a9ba715ec44.pdf
    • https://cdn.shopify.com/s/files/1/0428/5333/5207/files/zetarateruxama.pdf
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/mamidivufetexixerup.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/93211310728.pdf
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/54536294646.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6374/files/zebiwe.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/71806007942.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/romosarupebutobolaganenuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/twitter_api_keys.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/ornate_rusted_key_gw2.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/18475987626.pdf
    • https://cdn.shopify.com/s/files/1/0437/2499/6773/files/31875042133.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/45583648064.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_off00007503.bin
6b351ae924cc8560d6794637f8d8c723d6f1f1cb2b9c104cd3339a22b68c40b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7503 5816 bytes
font_01_sfnt_off000088d9.bin
42f3356a40b855f281b84a1a7ea88b27385a94a2872e52c546271dfba7e2ebea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88D9 15076 bytes

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