Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1cecc69d4e0973a…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 11:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36ff3ae290e4f66372f0d749e5a70941 SHA-1: 710f0c92097430c5ff22d12cdd8c3077a3683666 SHA-256: d1cecc69d4e0973a281083d3c8160bbe9a138bf513d608939d80db6e04ab7ba6
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as academic material. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of links, likely for SEO manipulation or to host further malicious content. The presence of a download button lure (SE_DOWNLOAD_BUTTON) reinforces the deceptive 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=military+college+jhelum+past+papers+pdf
    • http://mikijef.sacredtellings.com/uploads/1/3/2/7/132711991/rafunosugine-furoxaluz.pdf
    • http://files.bonnergrade1families.com/uploads/1/3/1/3/131380591/mozazivopa.pdf
    • http://xomubixev.aspire2bfree.com/uploads/1/3/0/8/130814328/f8fec1ab743b.pdf
    • https://cdn.shopify.com/s/files/1/0430/5436/6877/files/63704491583.pdf
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/aerobic_wastewater_treatment_process.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/fidozukogomukomevidepi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/98367247582.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5916/files/general_aptitude_tricks.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/cacerola_de_mar.pdf
    • https://cdn.shopify.com/s/files/1/0434/5335/0053/files/cellular_organization_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/nisatale.pdf
    • https://cdn.shopify.com/s/files/1/0438/6645/6224/files/david_freedman_statistics_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/4098/0642/files/jodetukuzef.pdf
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/dusuxezuragiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9728/files/tolewizorageroz.pdf
    • https://cdn.shopify.com/s/files/1/0444/6345/6423/files/java_tutorial_free_download.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_off00005f0d.bin
f3a1f3f10a4248fb61245ac483a6f00c3babc278db0117588842afca3d7ae589
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0D 5752 bytes
font_01_sfnt_off00007286.bin
10e2313ce725c6fbd2689511dc18156f5afa1bd461c3221104595ccd903938de
pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 13908 bytes