Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d4098a823cea12b…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 16:23:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e19d081b8a8c4d1389a56101d031afc0 SHA-1: f75d1686e99ed0c95cd2ab5be8a36fde1365f9df SHA-256: 9d4098a823cea12b6b312acf6fd1997127d6411cc8d1829b0419981e370058ff
130 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 ttraff.com. It also exhibits characteristics of a PDF link farm, with numerous links to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary goal is to lure users to malicious infrastructure, likely for phishing or further malware delivery.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=canine+parvovirus+pada+anjing+pdf
    • http://files.pitlochrycc.co.uk/uploads/1/3/0/8/130874058/tesawe.pdf
    • http://files.allisonjjanda.com/uploads/1/3/2/8/132814272/4721067.pdf
    • http://files.yjhjewellery.com/uploads/1/3/0/7/130776336/zerinajedobu.pdf
    • https://cdn.shopify.com/s/files/1/0441/1850/7672/files/matrix_inverse_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0428/5258/1542/files/morphing_mod_for_minecraft_1._8.pdf
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/mining_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0439/0017/4504/files/wuzujoluguxisivivovip.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/20600642251.pdf
    • https://cdn.shopify.com/s/files/1/0433/1808/3742/files/xosajelakisavamedise.pdf
    • https://cdn.shopify.com/s/files/1/0446/5518/1987/files/biometria_hematica_valores.pdf
    • https://cdn.shopify.com/s/files/1/0431/8203/1007/files/tinexulorilinoranuzexij.pdf
    • https://cdn.shopify.com/s/files/1/0435/8465/1423/files/72310531477.pdf
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/5e_ranged_attack_in_melee.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_off00006e0c.bin
192257b36866c98803e67e8a7f93bb4f0366d99f6fe031d8a154ecb86277879a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0C 5220 bytes
font_01_sfnt_off00007feb.bin
f5fc3848cdc6012c9125005f0de29ab01f4d007abcdee7862cac70627b6714a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEB 10412 bytes

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