Malicious PDF — malware analysis report

Static analysis result for SHA-256 471b3f25af0df06b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-12 21:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54417471d108f68d5a2ec8a52dc55e31 SHA-1: fcb866e77c5d3f78d1e959c1d1af60f61b9717a6 SHA-256: 471b3f25af0df06bd03880f8021a378295efff9835d48a1a180a69954bc52aa1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The document body, though partially corrupted, includes the URL that triggers this heuristic, suggesting a lure to a malicious site. The presence of numerous other links, many pointing to Shopify, indicates a link farm strategy, likely to obscure the malicious redirector.

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.com/pify?keyword=the+chemistry+of+love+michael+liebowitz+pdf
    • http://fidula.bmcbooks.com/uploads/1/3/1/3/131380429/sozesusew-levojabolerub.pdf
    • http://files.anticsofsusieq.com/uploads/1/3/2/7/132740384/7981806.pdf
    • http://files.stjosephsbrackenridge.com/uploads/1/3/0/7/130740510/kogagixegaxepugefej.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/70743587462.pdf
    • https://cdn.shopify.com/s/files/1/0436/9793/0393/files/the_healing_codes.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/toxatusoxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7353/6149/files/xutedijopozoburixurupeji.pdf
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/bilale.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/42646385970.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9880/files/leaflet_pneumonia_pada_anak.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/nilikonujekes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0437/files/99160572293.pdf
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/38555523508.pdf
    • https://cdn.shopify.com/s/files/1/0436/1289/7437/files/89898447874.pdf
    • https://cdn.shopify.com/s/files/1/0434/6671/9385/files/13396843211.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_off000065c7.bin
33f52a99d5b39ce4399af57bf23d7aa42308c8e97329fc2443e90cbe4b3dbf12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C7 5788 bytes
font_01_sfnt_off00007973.bin
0750ca63c9afb95545ef98021665611cfbe481971336a3c78050c7bb47a5bbfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7973 9864 bytes

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