Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b8433b0e35dc181…

MALICIOUS

PDF

73.5 KB Created: 2020-08-19 01:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e0f73501c6bc0281746a6e1706d8ecb8 SHA-1: 726d5d6188380eed55edfdf6e9fe33f49d2905ac SHA-256: 2b8433b0e35dc1812b6a274818e6e48882abdf7dfe1d2179554734c51eafcc09
162 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'American gangster movies' and a URL that appears to be part of a link farm designed for SEO manipulation. The presence of advance-fee scam lures and malicious redirectors strongly suggests a phishing or scamming 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=american+gangster+movies
    • http://files.gillsaul.com/uploads/1/3/0/7/130776150/5684ea.pdf
    • http://files.amy-owen.com/uploads/1/3/1/3/131384284/sumimomedu-zajebonuzeg-rasarit.pdf
    • http://sanilol.readnis.com/uploads/1/3/1/3/131384244/4904891.pdf
    • http://files.colligangolf.com/uploads/1/3/2/8/132815054/mexesuj_natamanijaj_zarowegosedo_vavetutomurizop.pdf
    • http://fekerep.workingwonders4downs.com/uploads/1/3/0/8/130814328/doxedudebokesi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/13411828502.pdf
    • https://cdn.shopify.com/s/files/1/0440/6276/9302/files/xojakerufotom.pdf
    • https://cdn.shopify.com/s/files/1/0433/5652/0616/files/wow_classic_sungrass_farming_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/86752491817.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/karejobuvupegijimo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7047/9766/files/dinobejeruxagap.pdf
    • https://cdn.shopify.com/s/files/1/0437/6304/0413/files/a_padam_tamil_movie.pdf
    • https://cdn.shopify.com/s/files/1/0431/1017/0786/files/fevimorigila.pdf
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/xisogaduzarijawegob.pdf
    • https://cdn.shopify.com/s/files/1/0435/4139/7656/files/xigodidigonugalobaza.pdf
    • https://cdn.shopify.com/s/files/1/0433/3672/8734/files/sociocultural_context.pdf
    • https://cdn.shopify.com/s/files/1/0429/8168/7459/files/common_core_math_workbook_grade_4.pdf
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/enterprise_architect_13._5_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/kozelesukoxajoviwudux.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_off0000e257.bin
debff76cd44c683bfc5701268e0a6c761341f58c02f115be81c4a1e6bfaeb5da
pdf-font-stream PDF embedded font (sfnt) at offset 0xE257 5136 bytes
font_01_sfnt_off0000f3b4.bin
d3d2bfbeba52bfbf63beae7e376919490ea2c8eb4ad4f5c9dc5ff8fd79416067
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B4 10788 bytes