Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c3ced2c84d5c70…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 06:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d04645bd3970cafbb168bd7d3dab63ec SHA-1: ccb1f247f431b583466c080323ac2da2de6e2fbf SHA-256: 27c3ced2c84d5c7047234ec5a566b4bd6f873db6a29eaad81508b32e91a3bf54
128 Risk Score

Malware Insights

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

The PDF contains a link disguised as a software download, which redirects to a known malicious URL. It also features a link farm pointing to numerous PDF files hosted on Shopify, likely for SEO manipulation. The presence of a call-to-action button further supports a deceptive social engineering attempt.

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=aladdin+4d+software+free
    • http://files.jazzbeyondborders.com/uploads/1/3/1/4/131408204/zivelezexumevik.pdf
    • http://files.hiagodesena.com/uploads/1/3/0/8/130814421/rofima_lasani_vododod_zumako.pdf
    • http://wiguraso.laurahelm.com/uploads/1/3/1/4/131406801/8dceba8.pdf
    • http://files.looneymoons.com/uploads/1/3/2/7/132740905/sevilotab-tumenopobelupez-pexadidetem-figelumaveviwoz.pdf
    • http://files.nelspruitlighthouse.org/uploads/1/3/0/9/130969334/81d9701b8d.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/bims_assessment_spanish.pdf
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/industrial_wastewater_treatment_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/6640/0663/files/nopoporugunobijebu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/witinesefisoroj.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6653/files/bemipawofolalipepomewekaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8137/files/12554563630.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/types_of_enzyme_catalysis.pdf
    • https://cdn.shopify.com/s/files/1/0434/6957/0198/files/astrologers_day.pdf
    • https://cdn.shopify.com/s/files/1/0433/0412/4571/files/bible_commentary_niv.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/62093718116.pdf
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/amino_acid_metabolism_mcq.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_off000064f9.bin
c49f11ce8ee8a919d862c9c1df433ddd7de14cabacde69ba237e2876b888b2b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x64F9 5072 bytes
font_01_sfnt_off00007659.bin
fe2686733566b065d01df7e00fb220a7545fac75d4e4a55c5ae8d83f43787c2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7659 9996 bytes