Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad02eb75fc7fda8d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-11 09:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 016462d23c6f7ece24979f28b84c6444 SHA-1: 96188f8c64fba257d34c515d918aace1ab51010f SHA-256: ad02eb75fc7fda8d9bb4ae1cffcfc44187bd75a17ddc4c4cca86f8c58369f48c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a likely phishing or malware distribution attempt. The document body, though partially garbled, suggests a lure related to a rental agreement. The presence of numerous external links, many hosted on Shopify, points towards an attempt to obscure the true malicious destination. The primary malicious URL identified is https://ttraff.cc/pify?keyword=freiwillige+b%25C3%25BCrgschaft+mietvertrag+pdf.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=freiwillige+b%25C3%25BCrgschaft+mietvertrag+pdf
    • http://files.questinfosolutions.com/uploads/1/3/0/7/130739280/juvala_sepilubaf_lemubelunezivu.pdf
    • http://jofuk.indoorcyclinginstitute.com/uploads/1/3/0/9/130969772/vutubovimafajil.pdf
    • http://files.thehopechestil.org/uploads/1/3/0/8/130874379/neleza.pdf
    • http://files.carolynfine.com/uploads/1/3/1/3/131379396/xabajipu_xejoriza_vometolibixod.pdf
    • http://files.brownschoollibrary.com/uploads/1/3/2/6/132695492/voselemagorawakaso.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/sijuxamovir.pdf
    • https://cdn.shopify.com/s/files/1/0434/3542/5944/files/85477750777.pdf
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/51529736622.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kerikelamizefebimu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6519/files/17504784575.pdf
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/62099473200.pdf
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/belaxokiwupowodorerul.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/sahaja_yoga_chakras.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/marriage_certificate_nsw.pdf
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/60439712408.pdf
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/safatopabisipuneju.pdf
    • https://cdn.shopify.com/s/files/1/0441/2915/7272/files/carla_spice_videos.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/solutions_manuals.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/
    • https://cdn.shopify.com/s/files/1/0441/29

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060a0.bin
28748b714a708f18e0c27e9c3c4eb7fa97445560f6be141910d0c370c05a4260
pdf-font-stream PDF embedded font (sfnt) at offset 0x60A0 5936 bytes
font_01_sfnt_off00007492.bin
f2b9af927040dbe6d60bd5677568d7510e38821700b8a5ef072572d3104d6f71
pdf-font-stream PDF embedded font (sfnt) at offset 0x7492 10568 bytes