Malicious PDF — malware analysis report

Static analysis result for SHA-256 588c6b2b43884550…

MALICIOUS

PDF

45.8 KB Created: 2020-09-01 02:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c038fb6420c26e8993ca178540ce0ce SHA-1: 24f95ed8d7959a64bd00880d9489dc4b4d9d78a4 SHA-256: 588c6b2b43884550256dab5520af8f0428ad5c228795e817ca0815a383036d42
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.club/wix?keyword=cg+movie+i+love+you+song, is identified as a malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting an attempt to drive traffic to malicious infrastructure.

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.club/wix?keyword=cg+movie+i+love+you+song
    • https://cdn.shopify.com/s/files/1/0429/5960/1830/files/88216257914.pdf
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/19328743291.pdf
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/canal_de_distribucion_directo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/audyt_energetyczny_dom_jednorodzinny.pdf
    • https://cdn.shopify.com/s/files/1/0434/2854/4668/files/pigobatomofevixiju.pdf
    • https://cdn.shopify.com/s/files/1/0434/6406/5188/files/wavaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/1260/4582/files/sitododi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/zadafoxidemej.pdf
    • https://cdn.shopify.com/s/files/1/0458/1258/0518/files/schaum_outline_college_mathematics.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3267/files/vodesenonutasukasupokuva.pdf
    • https://cdn.shopify.com/s/files/1/0429/2624/3996/files/dakabagowot.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/vonezagobevenefifawuxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4605/1744/files/atrial_fibrillation_icd_10_guidelines.pdf
    • https://static.usrfiles.com/ugd/b8c837_907c5a9d0e444ce58801fc95c4063674.pdf
    • https://static.usrfiles.com/ugd/b8c837_d31096489efc48f1ae5892255feb8075.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
font_00_sfnt_off00004ab7.bin
07c6985e3c9c66639f3e7c5d114b7930c94fff5ba963311f1472e57c711a348e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB7 4688 bytes
font_01_sfnt_off00005aa0.bin
7f893203e8b2325314018dd0d8fc3d45a2f5a3933dbb61c1b658e5c3c4be76f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA0 10080 bytes
font_02_sfnt_off00007d30.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D30 4324 bytes
font_03_sfnt_off00008b30.bin
5a9fd496a141fe60864287d48ddf3b5513c8ac54e970e3278830b189b43d6959		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B30 8628 bytes

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