Malicious PDF — malware analysis report

Static analysis result for SHA-256 472c26d751996cac…

MALICIOUS

PDF

45.0 KB Created: 2020-08-10 06:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3caf1fbf9d2d852ba61d07520f9c8b87 SHA-1: 2629dc552e3d96f6401702aeb6b752642308662d SHA-256: 472c26d751996cac0a057811ca3782a0a174c4548bbeb98052daea7509b5f1b3
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains text related to a 'bank clerk exam syllabus' and the malicious URL, suggesting a phishing or scam lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the final malicious destination.

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.com/pify?keyword=bank+clerk+exam+syllabus+2020+pdf+download
    • http://files.lakenormanyoungprofessionals.com/uploads/1/3/1/4/131437380/49085f4.pdf
    • http://files.ristorantepizzeriacasamatta.com/uploads/1/3/1/6/131606789/puworajoz.pdf
    • http://files.synthesisaestheticsproject.org/uploads/1/3/2/6/132681307/4db4c.pdf
    • http://files.sonjanagy.com/uploads/1/3/1/1/131164129/4082342.pdf
    • http://files.thebossygourmet.com/uploads/1/3/0/8/130814466/jobuwapuzo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6364/files/valse_d_amelie_partition_piano.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/51130377676.pdf
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/salex.pdf
    • https://cdn.shopify.com/s/files/1/0438/4446/8898/files/38590214164.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/87515396096.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/43548531647.pdf
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/jomege.pdf
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/emotional_intelligence_2._0.pdf
    • https://cdn.shopify.com/s/files/1/0437/9960/9505/files/velijozosirenijavisupama.pdf
    • https://cdn.shopify.com/s/files/1/0432/6067/4210/files/tegarevijapu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8017/9109/files/safety_management_system_manual.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_off0000700d.bin
d0ae2c6cc4121ce36efafa6868c3f30f6a493737934d4d2f12824b3d241a0cbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x700D 6092 bytes
font_01_sfnt_off000084cf.bin
ecefcdb34182c5fb07b654e5f642d0d93d93968c818d35caa5301a98c33e42e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84CF 9968 bytes

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