Malicious PDF — malware analysis report

Static analysis result for SHA-256 b592dabe1e63b964…

MALICIOUS

PDF

36.7 KB Created: 2020-08-23 16:13:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d016362913a6393a9deaa739e3c9225 SHA-1: d1e7b18f40077614cce0c7f06c2caa0437d24aa3 SHA-256: b592dabe1e63b9647c8baf8f5d0874d9e1fbc193a311013f03e3e39f31b08863
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=sql+developer+2012'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, many hosted on Shopify. The presence of a visual download button lure further supports the malicious intent. The primary goal appears to be redirecting the user to a malicious site, likely for malware distribution.

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.com/pify?keyword=sql+developer+2012
    • http://nolalo.madisonfirstchurchofgod.com/uploads/1/3/1/3/131378780/7452f.pdf
    • http://files.theprofbodyforum.org/uploads/1/3/1/6/131636845/gufifoja-dizidi-pefijazal-kajep.pdf
    • http://tazoluvun.memassweets.com/uploads/1/3/0/8/130813528/1748634.pdf
    • http://jurufexa.kobasfourpawsinstitute.com/uploads/1/3/0/8/130814328/2625796.pdf
    • http://files.mightymutt.com/uploads/1/3/1/3/131380480/rovixuma.pdf
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/8389642311.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/93237596332.pdf
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/capitalization_worksheets_grade_6.pdf
    • https://cdn.shopify.com/s/files/1/0439/4038/0840/files/handy_seamless_transitions_v4.pdf
    • https://cdn.shopify.com/s/files/1/0436/1220/9314/files/developmental_biology_11th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/8135/7725/files/code_complete_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/6870/3398/files/clinical_trial_data_analysis_using_r_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/rosofarijijerexekegameger.pdf
    • https://cdn.shopify.com/s/files/1/0431/1135/0439/files/too_many_items_1._7._10_curse.pdf
    • https://cdn.shopify.com/s/files/1/0429/5986/3959/files/guitar_arpeggio_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/9691/4600/files/xivofawov.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/57570281626.pdf
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/vibepulonibupivi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93236297381.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_off0000519b.bin
2b48ad2ca892f171c53f8ec3ad994c196766c4c7ca23019250200e4c1e4ee804
pdf-font-stream PDF embedded font (sfnt) at offset 0x519B 5180 bytes
font_01_sfnt_off0000635b.bin
91dd8f92388065ec0ab9ef65ca7cd451ab6af6f5e715ecc8da2d32d8c8fa0d51
pdf-font-stream PDF embedded font (sfnt) at offset 0x635B 10180 bytes