Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3b34e0381cd2a81…

MALICIOUS

PDF

49.0 KB Created: 2020-08-07 18:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6074c3fb3ee12414d81c50f2933e444e SHA-1: 1ad1ac9eba8df8df1bf1e73869aa4115a495f412 SHA-256: d3b34e0381cd2a81264d58965bd40039c13538abb10f113f864a328371f51211
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=the+analysis+of+biological+data+second+edition+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The document body itself contains text related to a technical document, which is likely a lure to encourage clicks on the embedded malicious links.

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=the+analysis+of+biological+data+second+edition+pdf
    • http://suwogami.labelletraining.com/uploads/1/3/1/4/131437462/9481901.pdf
    • http://vawupimu.sarapretelliphotographer.com/uploads/1/3/0/7/130775413/4399249.pdf
    • http://files.eatwellwithwilson.com/uploads/1/3/2/6/132695455/958357.pdf
    • http://files.christlikeonline.com/uploads/1/3/1/4/131410234/651ab713000.pdf
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/kifapamunubijidakar.pdf
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/kifelevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6959/files/kelamoluzinimuni.pdf
    • https://cdn.shopify.com/s/files/1/0435/8481/5259/files/48187462710.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/financial_accounting_8th_edition_libby.pdf
    • https://cdn.shopify.com/s/files/1/0430/2438/4154/files/essentials_of_pathophysiology_4th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/31720438056.pdf
    • https://cdn.shopify.com/s/files/1/0438/2484/0861/files/xunuwaxizexeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/5838/8383/files/dogazi.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
font_00_sfnt_off000073a2.bin
d29db2350c45d9a4344adc2e1f5efe00c416dc49a1789281825d99d9552d43a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A2 5300 bytes
font_01_sfnt_off000085a8.bin
c5b25633d6158fcfede591dd8dd9b6d8e2519fb551dcd7dae1c41353e4e279aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85A8 10416 bytes
font_02_sfnt_off0000a8f2.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F2 4324 bytes

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