Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df165811ef30410…

MALICIOUS

PDF

47.4 KB Created: 2020-08-11 18:51:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62aade7cdcfe15785bb4c8c87ad2a16e SHA-1: 6ddd916d5e07a94e3aad30f1c4e1ea78121bc41d SHA-256: 2df165811ef304107661bba93aaafc3f81d8ff77453ea8539a2b77c6a412e69e
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs hosted on Shopify, suggesting a lure to download potentially malicious content. The presence of a call-to-action phrase further supports this. No scripts were extracted, limiting the analysis of the payload.

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.ru/pify?keyword=e+book+wings+of+fire+pdf
    • http://files.centralpopalicious.com/uploads/1/3/1/4/131453598/buboku-mabegekefiladim.pdf
    • http://files.jessicadenham.com/uploads/1/3/2/7/132712005/molavavip.pdf
    • http://files.moniquekgaffney.com/uploads/1/3/0/8/130813860/c6a16.pdf
    • http://files.icorboxing.com/uploads/1/3/1/3/131398560/bupiwu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0923/5355/files/94808711010.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/42193312017.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/86398890073.pdf
    • https://cdn.shopify.com/s/files/1/0438/6874/9979/files/loxudukudapaxuraf.pdf
    • https://cdn.shopify.com/s/files/1/0435/5709/3525/files/blender_2._7_tutorials_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0433/4092/3048/files/aircraft_performance.pdf
    • https://cdn.shopify.com/s/files/1/0435/3461/4688/files/tepalesesenuforogogikikuv.pdf
    • https://cdn.shopify.com/s/files/1/0449/2810/6651/files/genero_dramatico_historia.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/speak_your_mind_in_writing_c2.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/59789690443.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/zalemaperibaziwaguta.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/bugegojikibudubinu.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
font_00_sfnt_off00006347.bin
6190703e109a5efcd6d551d8ae4c88f3f4454a12aa4e667007f7eb4a3fe981d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 5220 bytes
font_01_sfnt_off0000752f.bin
fa31028b128998e9023d4a549bce27c628b518c3e6c446dab6cedeacb626cb78
pdf-font-stream PDF embedded font (sfnt) at offset 0x752F 10912 bytes
font_02_sfnt_off00009a42.bin
c3461001ca888bed6954970c14d027cf202d908e5c0b8e175f896e5a236b6086
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A42 16100 bytes