Malicious PDF — malware analysis report

Static analysis result for SHA-256 5485c11c9f41e6c3…

MALICIOUS

PDF

50.7 KB Created: 2020-08-18 15:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b090fad71dfeffd8662336458558b646 SHA-1: 68034269999bbab3e10917f805b818e178ebbe1f SHA-256: 5485c11c9f41e6c31fe1cbf00dc3db99478f8abbf70ab13b1ac54cece1bea0fb
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a 'png to word converter' lure, and a heuristic firing indicates the presence of a visual download button. This combination suggests a phishing attempt designed to trick users into clicking the malicious link, likely leading to further malware download or exploitation.

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.cc/pify?keyword=png+to+word+converter+i+love+pdf
    • http://files.daretodreamweddingswi.com/uploads/1/3/0/7/130740262/9787808.pdf
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/narixizeref.pdf
    • https://cdn.shopify.com/s/files/1/0434/5144/9496/files/52708032719.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/3016/files/1249447888.pdf
    • https://cdn.shopify.com/s/files/1/0433/9603/8812/files/85575619809.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/bogue_inlet_fishing_reports.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/nudopotupigazebenepiga.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/30499979419.pdf
    • https://cdn.shopify.com/s/files/1/0431/4248/0021/files/zonuregedaxin.pdf
    • https://cdn.shopify.com/s/files/1/0432/0857/3085/files/olaudah_equiano_autobiography.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/chemistry_formula_book_for_neet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006f10.bin
c3982b7fd926b18431061280237c39491a1746b0fb4890969929ec4c35b18c40		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6F10 12760 bytes
font_00_sfnt_off00005da4.bin
a66ef2504c175339577fc1a0c6ac4bd6b51b5ade7d1824b452c4649854454a06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA4 5088 bytes
font_02_sfnt_off00009301.bin
cb699321f97526d8c652142dd14fbf16fa737cd89a898db8b874ce1830f403ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9301 13548 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.