Malicious PDF — malware analysis report

Static analysis result for SHA-256 970fbc7a9c25b37e…

MALICIOUS

PDF

41.4 KB Created: 2020-08-15 06:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 964aed55b7027625b9fb5652d2079e9a SHA-1: 0332d1cd0626f50cad840bceddf65157ca3ba634 SHA-256: 970fbc7a9c25b37e1a15187491a24be9b58428e04524592d58acd0628e0a2051
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Macromedia freehand mx 10 free', combined with a 'Click here to download' heuristic. This suggests a phishing or social engineering attack aiming to redirect the user to malicious infrastructure via the ttraff.com URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=macromedia+freehand+mx+10+free
    • http://files.charlottescot.com/uploads/1/3/1/4/131409305/6259900.pdf
    • http://lifafewi.breaksticks.pitbullhill.com/uploads/1/3/0/7/130775997/86d21a448a3.pdf
    • http://tupeb.indiajoneseatery.com/uploads/1/3/2/8/132814930/miribonomugimi.pdf
    • http://files.artinktown.com/uploads/1/3/1/4/131438419/0ec663bb67.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/fubalaxe.pdf
    • https://cdn.shopify.com/s/files/1/0438/4099/5490/files/87457231543.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/farron_keep_map.pdf
    • https://cdn.shopify.com/s/files/1/0437/2014/7093/files/college_algebra_9th_edition_barnett.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/jegit.pdf
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/kumirugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3773/6603/files/film_august_rush_2007_sub_indo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/vafubunala.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/77367478783.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_off00005f3d.bin
9689351a4dcae6c0b8b4ea4fd3afb2d8734b07edc75adaf9ee58fd2a9393f24e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3D 5320 bytes
font_01_sfnt_off00007131.bin
a5a55be3c9515eabe86de12744286c0142d3a41cfd246b93e5fdfb217d549f2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7131 12440 bytes

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