Malicious PDF — malware analysis report

Static analysis result for SHA-256 79133c6e4de30b7b…

MALICIOUS

PDF

41.8 KB Created: 2020-08-10 17:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c33436bc239c0650b44fe20670c64aa6 SHA-1: cc38812a828da01eeff38ae0427f7ed3148001bd SHA-256: 79133c6e4de30b7b79493a2c1023aa23bb59a8d07dd06e9978e9d2798fb2e9d1
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=life+and+death+twilight+reimagined+pdf+italiano'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The presence of many Shopify-hosted PDF links indicates a link farm strategy, likely to improve SEO for malicious content. No scripts were extracted, but the PDF structure and link farm are strong indicators of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=life+and+death+twilight+reimagined+pdf+italiano
    • http://files.waramaughospitalityco.com/uploads/1/3/1/3/131379477/filizoxij.pdf
    • http://files.frontroomon7th.com/uploads/1/3/1/8/131871501/fivonetivokavow_faxojawigutasa_suxivadisule.pdf
    • http://files.mytridentestates.com/uploads/1/3/2/7/132712206/8239059.pdf
    • http://files.wordsbymapson.com/uploads/1/3/1/3/131379236/sagukukimu_fawigox.pdf
    • http://sejar.townofhafford.ca/uploads/1/3/0/8/130873951/movuvenotimapa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/dajufaburolepum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1189/files/30975372917.pdf
    • https://cdn.shopify.com/s/files/1/0434/2926/5574/files/goralurijubinosodav.pdf
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/zutokuvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/bsc_2nd_year_inorganic_chemistry_notes_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/financial_accounting_multiple_choice_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/lesezuzodilojek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/dudufu.pdf
    • https://cdn.shopify.com/s/files/1/0440/5755/9190/files/sumuzubalaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/nowolik.pdf
    • https://cdn.shopify.com/s/files/1/0431/5886/4028/files/noraluzexolojumil.pdf
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/9338982576.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_off000065e3.bin
a8619b820e6c350136e0d23fc39170ed31f7836f0cde6af629858d4f395a7892
pdf-font-stream PDF embedded font (sfnt) at offset 0x65E3 5312 bytes
font_01_sfnt_off000077dc.bin
257ad57b4f1c2854ddc72bf801c5cda1755f5828e04295dd9185c6b36d774a4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x77DC 9984 bytes