Malicious PDF — malware analysis report

Static analysis result for SHA-256 484be81ef3f8b134…

MALICIOUS

PDF

44.7 KB Created: 2020-08-15 03:44:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c284fb6620d20034fdc6206c4c49d089 SHA-1: 67b47b973b2972d5a05dc44f264d632060a49a41 SHA-256: 484be81ef3f8b134ad46b0909db02c84e5671456a0f67cc2097e211f80d5129b
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=happier+easy+piano+sheet+music+free'. This indicates a phishing or scam attempt disguised as free piano sheet music. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=happier+easy+piano+sheet+music+free
    • http://files.pawsitivedogtraining.org/uploads/1/3/2/3/132302733/jusedafimapapakinuj.pdf
    • http://tabuzas.donthirejerks.com/uploads/1/3/0/7/130776167/kapof-duvuvu-nilobodisuvut-dovixopogel.pdf
    • http://pibik.olivetbiblechurch.org/uploads/1/3/2/6/132682076/879572.pdf
    • http://files.slpechowan.com/uploads/1/3/2/6/132696030/2f182a0fb2069b.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/67117691813.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8139/files/75708898173.pdf
    • https://cdn.shopify.com/s/files/1/0431/3976/0295/files/wufuvemefimuvijixepazumi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdf
    • https://cdn.shopify.com/s/files/1/0434/2140/1237/files/83041623279.pdf
    • https://cdn.shopify.com/s/files/1/0434/7956/4448/files/pofinikilir.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/moxamajumajuzixosonivuj.pdf
    • https://cdn.shopify.com/s/files/1/0452/1938/1399/files/linear_algebra_multiple_choice_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/define_academic_achievement.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_off00006870.bin
acb5515ba1a3ae39dd8aa2757ab1249c8c82bd90b01c8dd570cf3a9c211df9c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6870 5284 bytes
font_01_sfnt_off00007a40.bin
f1e9a38a7508d03b97a1ab2d97217eff2617b7e6951963e9676f5b7f228457e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A40 14324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.