Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a9b9589697fb10b…

MALICIOUS

PDF

43.1 KB Created: 2020-08-14 23:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dd555a19e7f811ac3eb0bc1ee8b3785 SHA-1: b9dd7209f024de0a50bc7d71c3a08c759596e411 SHA-256: 9a9b9589697fb10ba78835f26d8ba46e478476bb52d2b972e3ad423ba4a188c9
120 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm or SEO spam campaign. The primary malicious URL identified is https://ttraff.cc/pify?keyword=digoxin+toxicity+management+guidelines. While no scripts were extracted, the structure and heuristics indicate a malicious intent to redirect users to potentially harmful content. The document body contains garbled text and some URLs, but the heuristics provide the clearest indicators of malicious activity.

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=digoxin+toxicity+management+guidelines
    • http://files.createandtransform.org/uploads/1/3/1/4/131482968/6468229.pdf
    • http://files.waitlessplay.com/uploads/1/3/1/0/131070713/pedegixipapenenom.pdf
    • http://files.theunlimiteddreamer.com/uploads/1/3/2/3/132303010/bibobovakorogu.pdf
    • http://files.davidmartinezmagic.com/uploads/1/3/1/6/131637529/rimigixam.pdf
    • https://cdn.shopify.com/s/files/1/0437/8443/7922/files/aghora_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/kalagewaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/gugenarepegafo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/bulats_vocabulary_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/33023300960.pdf
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/juxebetug.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/la_ballade_des_pendus_analyse.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/mipirikenataw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/8238355537.pdf
    • https://cdn.shopify.com/s/files/1/0435/2435/8298/files/dizuza.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42778981568.pdf
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/160089426.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_off00005d60.bin
ab60e852ff37410f772afa43aca0063772a903d36f5d4081bd5aa05630437d64
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D60 5216 bytes
font_01_sfnt_off00006f12.bin
3d95c6c84a4cff0527d2ec9d8ea186cba7cf9e4e77d3ed326789d8446ebd6995
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F12 10088 bytes
font_02_sfnt_off0000918f.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x918F 4324 bytes