Malicious PDF — malware analysis report

Static analysis result for SHA-256 f38ceccbce1608c6…

MALICIOUS

PDF

34.2 KB Created: 2020-08-04 05:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab007eb71b10e304dd6f94da6b51dfb0 SHA-1: 86c469ccc6a0911b231610850cc93847ebdfd9d7 SHA-256: f38ceccbce1608c6a6fac2bfcc918d6630692460c599d58a9cfe5e36ba283437
140 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'behavioral neuroscience' and includes the malicious URL. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for phishing or to download further malware.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.com/pify?keyword=discovering+behavioral+neuroscience+freberg+pdf
    • http://files.alardfilmfestival.com/uploads/1/3/1/8/131856646/1211555.pdf
    • http://files.margotrussell.com/uploads/1/3/1/8/131857476/6905700.pdf
    • http://files.lucaswkrueger.com/uploads/1/3/1/4/131406068/1227303.pdf
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/98079995068.pdf
    • https://cdn.shopify.com/s/files/1/0429/2503/1590/files/adventures_in_middle_earth_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/fowiligopizododunerifitez.pdf
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/rolilubetekuwuzovoxukiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8661/files/33275124248.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/24774890994.pdf
    • https://cdn.shopify.com/s/files/1/0434/0714/7166/files/83250737080.pdf
    • https://cdn.shopify.com/s/files/1/0429/9168/1699/files/where_to_find_steam_screenshots.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/gimirixotobakedejeboluri.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/69868214171.pdf
    • https://cdn.shopify.com/s/files/1/0435/4224/9631/files/11396007211.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_off00004692.bin
f30efc99e90fc1500756ba938933f5eba4adce35a18ab9efbb4134f6fbc3e27a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4692 5616 bytes
font_01_sfnt_off000059b3.bin
f32a9008f1c9679efebc6f34d3b42d42f114fc710411868317b22b9850873a6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B3 10032 bytes

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