Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b4ea2061451e2ff…

MALICIOUS

PDF

39.3 KB Created: 2020-08-24 12:05:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7756a6e2f04538b61ab9cf94f996eb90 SHA-1: 7bc00050be775382db16ed544483ce0f1b0fb94e SHA-256: 4b4ea2061451e2ff876daeb5621112a8523028371b1f7f8933c9764d0a639d9c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing indicating it is a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=fairfax+county+police+accident+reports`. This URL is likely part of a phishing or scam campaign, attempting to trick users into believing they are accessing legitimate accident reports. The document body also contains this URL and numerous other links to PDFs hosted on various domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted from this sample.

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.ru/pify?keyword=fairfax+county+police+accident+reports
    • http://files.peoplesmovementofpakistan.org/uploads/1/3/1/4/131438150/begarakuforema-mumugofixito-lemit.pdf
    • http://lusaditum.lordmarshal.org/uploads/1/3/0/7/130775542/6505349.pdf
    • http://files.manitobalivinghistory.com/uploads/1/3/1/4/131438296/9055353.pdf
    • http://nedujuvek.rheumatoidarthritishealingnaturally.com/uploads/1/3/0/7/130739415/ff23a557175a3.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/amarok_v6_manual.pdf
    • https://cdn.shopify.com/s/files/1/0452/5981/7117/files/zixas.pdf
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/79344062525.pdf
    • https://cdn.shopify.com/s/files/1/0436/7984/2457/files/22565018216.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/fagiraziseretofopetu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/luxal.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/nurabozogivogodadaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0211/6772/files/cancionero_para_guitarra.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nawujumukupuzuwoxelojoses.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_off00005b70.bin
ce129580f4bac503e5e2987e62fa62a90e57c10c901654871f3dce6a30b52d00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B70 5276 bytes
font_01_sfnt_off00006d7a.bin
6cd499c7ff684edcdc278368918b2ea307ac21e71542e958cfe453e672984195		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7A 10144 bytes

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