Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e773f3ae4aa359…

MALICIOUS

PDF

34.0 KB Created: 2020-08-20 11:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24bb41eb2f5db9d6aa4674c365c597e6 SHA-1: 79f2c9320f4609c8dadd4035ed4cca0eabb3aead SHA-256: 82e773f3ae4aa3598ba3d7b3a56988147d6c3f2a10f67e230eb622f7f0cbee68
130 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific redirector URL, indicating a malicious intent to redirect users to potentially harmful content. The presence of urgency language in the document body further supports a phishing or social engineering attack pattern. The primary redirector URL is https://ttraff.cc/pify?keyword=durham+reporting+centre, which is a critical finding.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=durham+reporting+centre
    • http://files.nickbridwellwriter.com/uploads/1/3/0/7/130775129/3b2b043322548.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1912/files/wazuzuxodinewavifedazun.pdf
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/78825218084.pdf
    • https://cdn.shopify.com/s/files/1/0431/7295/4269/files/918280269.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/mudejezusimakabikef.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/80697111492.pdf
    • https://cdn.shopify.com/s/files/1/0432/3983/3763/files/alternative_investments_caia_level_i_wiley_finance_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/english_antonyms_with_urdu_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0436/5477/4949/files/bioethics_case_studies.pdf
    • https://cdn.shopify.com/s/files/1/0437/5894/4405/files/gominosezurago.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/kalabulibitunusevifiso.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_off00004822.bin
a68dd7eed14f52eb7539c2508e1bff40a2782b49188f6522e28e7fd039adfb19
pdf-font-stream PDF embedded font (sfnt) at offset 0x4822 5136 bytes
font_01_sfnt_off00005979.bin
64c7d2ecf6c48f9e02402a801dc899391a8cb9b10b395e36bb92556d2ca49f14
pdf-font-stream PDF embedded font (sfnt) at offset 0x5979 9972 bytes