Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c38a544ffaf23d…

MALICIOUS

PDF

41.9 KB Created: 2020-08-03 12:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9596497721c25efd86da825523e7db56 SHA-1: 3bd61581ac24d7aa2dfea850483582a5a890f492 SHA-256: 32c38a544ffaf23d857ab873a4002677ef8147841ac47207b9d3257e8ff543a5
128 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text suggesting a lure related to 'Ibps calendar 2020 to 2020 pdf' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, suggesting a link farm designed to distribute malicious content. The SE_DOWNLOAD_BUTTON heuristic further supports the lure-based nature of the document.

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=ibps+calendar+2020+to+2020+pdf
    • http://files.oldsskatingclub.ca/uploads/1/3/2/7/132740584/fesina_nebedaka.pdf
    • http://files.theaterinthewoodsvt.org/uploads/1/3/0/8/130813546/simiwaxur.pdf
    • http://files.brandheroesacademy.com/uploads/1/3/1/6/131637135/84f8dd63.pdf
    • http://files.grahamcoatman.org/uploads/1/3/0/8/130815213/9987228.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/4286589407.pdf
    • https://cdn.shopify.com/s/files/1/0432/9252/4700/files/mepumojum.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/87308577658.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/93886655335.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/gewifaxudojunabuje.pdf
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/begadilitilemozi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5533/0966/files/86079465717.pdf
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/zenomevawonamak.pdf
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/73505604074.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/gogipazelewugiso.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/13159868299.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_off00005f22.bin
a9dd2361b96eb529814be4902b112fb04c11b2b1d1171986de5cd4372b1ee169
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F22 5500 bytes
font_01_sfnt_off000071db.bin
5b15c4847d9cbadadb863589524cae91ff523778e3ee10d809ded5e05156175d
pdf-font-stream PDF embedded font (sfnt) at offset 0x71DB 12964 bytes