Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6654441c31163b4…

MALICIOUS

PDF

45.6 KB Created: 2020-08-11 21:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c22ccf845eee68b156ad15fd53c252d SHA-1: ba6ed632635a58a05539cead3c079b42c237ec85 SHA-256: d6654441c31163b41a2343c3acf4d900074274837332ebbdbbb267b2216ed408
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bodybuilding+recipe+book+pdf'. This indicates a phishing or social engineering attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious payload.

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=bodybuilding+recipe+book+pdf
    • http://files.sandysfashionsformen.com/uploads/1/3/2/6/132695372/3254917.pdf
    • http://files.poetrypainting.com/uploads/1/3/1/4/131437655/mefifakuvu_nelalekad.pdf
    • http://files.upwardboundministriesinc.com/uploads/1/3/0/7/130776406/korogemexo-fukafa.pdf
    • http://files.jenniferhainesmua.com/uploads/1/3/2/6/132682905/zuzudenewafe-nopatid-toxuvodujunak.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/zudowajuligaro.pdf
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/mijidi.pdf
    • https://cdn.shopify.com/s/files/1/0449/4170/5384/files/navodaya_application_form_for_6th_class_2020_20.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7286/files/nutajudipemisikuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/carbonated_soft_drink.pdf
    • https://cdn.shopify.com/s/files/1/0434/0177/3212/files/baldor_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/1119/3501/files/binary_subtraction_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/98212390041.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/sobaxifejoga.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9588/files/gibawuvane.pdf
    • https://cdn.shopify.com/s/files/1/0440/4566/4406/files/5230976228.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/bloodborne_old_hunter_weapons.pdf
    • https://cdn.shopify.com/s/files/1/0428/1820/7911/files/speer_reloading_manual_13_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/natuxofi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/torusubivoxotowikabo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068c2.bin
ac0e119b7c854ff48cd0433c0d137cf658d7eed8535f5647d7f54551d6055284
pdf-font-stream PDF embedded font (sfnt) at offset 0x68C2 5092 bytes
font_01_sfnt_off00007a1e.bin
d47465294b869cd5d08ce793c6f3306025b8b33b18fecd0fdf8e72fbf313ac5b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1E 9592 bytes
font_02_sfnt_off00009ae4.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE4 4324 bytes