Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9acb44a150b0a28…

MALICIOUS

PDF

42.5 KB Created: 2020-09-06 18:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9b8a6d8a02ccf75d2a39e4c5cd056d SHA-1: 885b1215a7ea49d0d962cd1541e5cc7ce2756320 SHA-256: c9acb44a150b0a28198ee3d6d34a5e0cfb6ef053b54e18bb367e607db30eec30
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to benign-looking Shopify URLs, but the primary link directs to a known malicious redirector. This redirector is likely used to funnel victims to malicious content, potentially related to the 'alcatel 5044r frp bypass apk' search term found in the URL. The document's structure and link farm behavior suggest a phishing or scam attempt.

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=alcatel+5044r+frp+bypass+apk
    • https://static.usrfiles.com/ugd/b8c837_b85ed15068ba4997ba7323f1e4302bd5.pdf
    • https://static.usrfiles.com/ugd/fb5067_68b64acc224040f8b157cf4e5ba572c5.pdf
    • https://static.usrfiles.com/ugd/c722c2_d0fcb6f7850a467f8b7db448d554064e.pdf
    • https://static.usrfiles.com/ugd/f09a9d_298535b94a9d491ab71d7fdfb121e743.pdf
    • https://static.usrfiles.com/ugd/a0905b_3f129da302b344249d0e3cda9ad34421.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_ddc5d3e8c502470d81c4dd2923537f5a.pdf
    • https://static.usrfiles.com/ugd/9b5f63_e819ffd0a56e42c3b1fa21831db1624f.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/roledusededorewamipajo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8832/1437/files/zifewopozis.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1415/files/elementary_algebra_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/sixezefuzatifale.pdf
    • https://cdn.shopify.com/s/files/1/0464/6676/0856/files/kagugasod.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/93972458734.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/lojalinabazorasanewiponid.pdf
    • https://cdn.shopify.com/s/files/1/0439/5394/6782/files/slider_templates_free_bootstrap.pdf
    • https://cdn.shopify.com/s/files/1/0439/7717/9294/files/kotixikotelenujopowoka.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_off00006727.bin
3e2b08a87bfd97119ff3953e7dc95f1534232a4bd7b8f8c88926bca1af680b68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6727 5656 bytes
font_01_sfnt_off00007a83.bin
1d1a0bbcc5c6465be694adde6a9d98ae522e4c4a15c148a50476f0a41f4baf16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A83 10060 bytes

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