Malicious PDF — malware analysis report

Static analysis result for SHA-256 d51ccfea97bf5d98…

MALICIOUS

PDF

59.1 KB Created: 2020-08-05 18:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 980958521c56aaf5a5163facea38a69c SHA-1: 53348685148594d29ba79cc9c456447bc4ff4f37 SHA-256: d51ccfea97bf5d984d4e44d8617de159bcf67cc6ae2d6752124164ebd4973aa3
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into clicking on further malicious links. The document body references 'Adobe after effect tutorial for beginners pdf' to disguise the malicious intent. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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=adobe+after+effect+tutorial+for+beginners+pdf
    • http://files.prideofpa.com/uploads/1/3/2/3/132303410/7575708.pdf
    • http://files.jackiecheuvront.com/uploads/1/3/0/7/130775471/5672496.pdf
    • http://files.fullcanopy.com/uploads/1/3/0/8/130814596/a3d1761bd72.pdf
    • http://files.bakemydayacadiana.com/uploads/1/3/1/0/131071063/polijebaf.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/22428288773.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/paxalabidawekadur.pdf
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/48849211810.pdf
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/jowuxofesakulewila.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdf
    • https://cdn.shopify.com/s/files/1/0434/1720/6949/files/zixafuxiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/serway_college_physics.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/31676836394.pdf
    • https://cdn.shopify.com/s/files/1/0435/2399/7856/files/summer_waves_pool_pump_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/13623381932.pdf
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/xovagexovizewuwirax.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_off00009ba1.bin
5b5147d4abaa674ca594b28ae92978567b6db6b031c26a75c5b5a6bb3d59fe41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA1 5332 bytes
font_01_sfnt_off0000adcb.bin
6d3bf76e9f9da405337e5a1c3369d7abc9a44e0f4abef2a868fcb08236d01efc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADCB 10304 bytes
font_02_sfnt_off0000d0fb.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0FB 4324 bytes

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