Malicious PDF — malware analysis report

Static analysis result for SHA-256 565f4665d82f3bcd…

MALICIOUS

PDF

43.1 KB Created: 2020-08-22 01:26:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48dd6fcb7644fbe94e9cd2b620fa1108 SHA-1: 58fb1670e831b111cc64b66ed54eb0706e97b904 SHA-256: 565f4665d82f3bcd5710e655996068cfd054cfa6e9d1e09ddd0ffdeb24434c8e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=bohemian+rhapsody+movie+songs++free'. This indicates a social engineering attempt to direct users to malicious infrastructure. The document body, though heavily obfuscated, contains this URL, reinforcing the lure. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to increase visibility and traffic to the malicious redirector.

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=bohemian+rhapsody+movie+songs++free
    • http://files.mypromobook.com/uploads/1/3/1/3/131398250/favimaz-pikeza.pdf
    • http://files.finallyfridayartandwinewalks.org/uploads/1/3/1/6/131636956/tefajela_mamom.pdf
    • https://cdn.shopify.com/s/files/1/0432/6398/3769/files/countif_google_sheets_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0428/8223/6572/files/bluestacks_2_offline_installer_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0435/3648/2458/files/nalefuxibalukefilasufarom.pdf
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/nachiketa_story_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/fuvivenuwexikojijedoxiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/ambasamudram_weather_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/0893/3540/files/tokalafororafavoxokudup.pdf
    • https://cdn.shopify.com/s/files/1/0430/6567/1833/files/golezafiretomefirase.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/fisom.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/pefuzowunipinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2376/1571/files/korean_verb_conjugation.pdf
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/elantra_sport_2018_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/todepusidakesudilegadiwa.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_off0000691e.bin
6fc883961117a53f6d096e989ccfa400328cf6c33107f3727dd941252a5a9853
pdf-font-stream PDF embedded font (sfnt) at offset 0x691E 5632 bytes
font_01_sfnt_off00007c2f.bin
3e3ac2feefd5ede7a8598620faa24f26a9932fe3ca12c63501915870e842d3ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2F 10272 bytes