Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a0ec0cd022c2ae…

MALICIOUS

PDF

65.5 KB Created: 2020-08-31 01:24:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e1798647611c50aceb5177ba8b6b222 SHA-1: a12ea1174ff297823a3ce4e551f06e220893ade2 SHA-256: 32a0ec0cd022c2ae48eca4e23ff7c2b250949a4514ebe54dfb09ce7a1ec4f6d8
152 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, another critical heuristic identified it as a link farm, with numerous external links, many hosted on cdn.shopify.com. The embedded URL points to 'https://ttraff.cc/wix?keyword=wasteland+2+la+cienega', which is identified as a malicious redirector. The document body contains garbled text but includes the target URL, suggesting a lure to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=wasteland+2+la+cienega
    • https://cdn.shopify.com/s/files/1/0438/2641/3725/files/37001185894.pdf
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/cement_based_tile_adhesive_formulation.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9611/files/65049282694.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/71280611813.pdf
    • https://cdn.shopify.com/s/files/1/0440/7423/8102/files/47558939967.pdf
    • https://cdn.shopify.com/s/files/1/0431/8209/6535/files/anova_test_statistics.pdf
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/43026835843.pdf
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/74034353354.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9115/files/tamanulufatajivobu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4582/1338/files/action_video_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0430/5462/9015/files/3375350661.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/mokisunuretupezikivam.pdf
    • https://cdn.shopify.com/s/files/1/0434/8264/4642/files/how_to_write_a_cinquain_poem_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/insomnia_full_movie_tamil_dubbed.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_off0000b687.bin
5d0a77b51a3c6b432e389b9b8db7c816908e7c865a2d7bc7b89373047394eed7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB687 4836 bytes
font_01_sfnt_off0000c707.bin
624330062b83ce61f82d80cb2e5f654a04131653f2932db5dd113882a12122e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC707 10444 bytes
font_02_sfnt_off0000ea9b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9B 4324 bytes

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