Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a808cb7eb655dd4…

MALICIOUS

PDF

45.1 KB Created: 2020-08-03 02:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: baf8963acb1e2403f010451dfcd13d55 SHA-1: e93e503ac9bdff13aafead4dfbfcc9e71257947f SHA-256: 9a808cb7eb655dd48217ccc1ff68fe9aee27fa335bb5af9351ff1a02dd04a85b
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though garbled, contains a reference to 'sega genesis manual pdf' and a URL that aligns with the malicious redirector. This suggests a phishing or scam attempt to direct users to potentially harmful websites.

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=sega+genesis+manual+pdf
    • http://ridumab.catherineofsienaparish.org/uploads/1/3/0/7/130776449/15d7c4c.pdf
    • http://files.advanceprolighting.com/uploads/1/3/0/7/130739340/cc0d4ece039d.pdf
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdf
    • http://files.pederistad.no/uploads/1/3/0/7/130739379/6470286.pdf
    • http://files.rcyahoos.com/uploads/1/3/2/6/132695336/4414820.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/bamaxila.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/36550680766.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/wexalepamileri.pdf
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/sinufaji.pdf
    • https://cdn.shopify.com/s/files/1/0432/7954/8574/files/baritusuwumomegixib.pdf
    • https://cdn.shopify.com/s/files/1/0431/8055/6452/files/20014949791.pdf
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/lovukakutopulesigalixaxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/54935363449.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7831/1326/files/mariner_fighting_style_5e.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigemeziguvego.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_off00006662.bin
c4e873951a78d9c1bf44d4b22063d250859a7cb4becc8dd04034623fb0a12f56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6662 5368 bytes
font_01_sfnt_off0000789a.bin
3771e35407a1c361dacde4e280841e22fa7f4bcc7debd58d23ecb322364c13b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x789A 15292 bytes

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