Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc8f1714b0a32747…

MALICIOUS

PDF

249.1 KB Created: 2020-08-25 21:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a451de46fc845d5202a24a9c1f745a0a SHA-1: 60f049df6c7e129b6ba0bf8b4cb211e9d44d3c73 SHA-256: cc8f1714b0a32747c26b4323f1e11867b15061b32fd93a5b096efa8e8fc97bda
90 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier also strongly indicates maliciousness. The primary malicious indicator is the redirection to the URL https://ttraff.com/pify?keyword=%25D9%2585%25D8%25B7%25D8%25B1%25D9%2582%25D8%25A9+%25D8%25A2%25D9%2584+%25D8%25B3%25D8%25AA%25D9%2588%25D9%2587%25D9%2584%25D9%2585%25D8%25A7%25D9%2586, which is likely used to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 2

  • 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.
  • 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=%25D9%2585%25D8%25B7%25D8%25B1%25D9%2582%25D8%25A9+%25D8%25A2%25D9%2584+%25D8%25B3%25D8%25AA%25D9%2588%25D9%2587%25D9%2584%25D9%2585%25D8%25A7%25D9%2586
    • http://files.takingtheleadmedia.com/uploads/1/3/1/4/131407635/fc9b8902bc9197.pdf
    • http://files.ruiqichen.info/uploads/1/3/1/6/131637853/92dada48.pdf
    • http://files.fnaq.org/uploads/1/3/2/6/132682790/daweje.pdf
    • http://files.pharmbytes.org/uploads/1/3/1/4/131437246/f0a2e0cb989f.pdf
    • http://files.nikkidisney.com/uploads/1/3/1/4/131452733/3631083.pdf
    • https://cdn.shopify.com/s/files/1/0429/3702/4668/files/pudedo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/39928588457.pdf
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/carpet_sweeper_reviews_consumer_reports.pdf
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/free_piano_samples.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/kafawunusiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/1498/7669/files/98293726879.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/power_converter_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0432/7525/5961/files/litoxoturorisudatug.pdf
    • https://cdn.shopify.com/s/files/1/0459/9781/8015/files/ignou_assignment_2018-_19_solved.pdf
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/82800561395.pdf
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/dragon_age_inquisition_mage_skill_tree_guide.pdf
    • https://cdn.shopify.com/s/files/1/0444/8750/8135/files/lijefupobu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00039768.bin
5e5225a4f9dbd5af01f6f1e466d43ab8f843bb3dbc1799100b589f4c03c869cf
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39768 35080 bytes
font_00_sfnt_off00034bbb.bin
3e900196e372575ee1af689ac1189ef6d8c737e738b089e874f4efaa939d80c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x34BBB 4068 bytes
font_01_sfnt_off00035997.bin
c0426cc0640fcd54446b72680577a438c40f923778126384117ebb72e9b34821
pdf-font-stream PDF embedded font (sfnt) at offset 0x35997 18032 bytes
font_02_sfnt_off00037570.bin
358555c06ba279e885e8a2ac7e0b3e72d57b66f5565046d33ff408eb332c2a72
pdf-font-stream PDF embedded font (sfnt) at offset 0x37570 9864 bytes