Malicious PDF — malware analysis report

Static analysis result for SHA-256 3df881e36fd9e728…

MALICIOUS

PDF

41.0 KB Created: 2020-08-11 19:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f10f8ab3c2372d32dc1bedd6bf00e726 SHA-1: 858b617683f218b47b5dccca7e18fa97da9eee9c SHA-256: 3df881e36fd9e7286d4234a18cbd5494f4cd08c5db5605bb1f9ecba9823bd2c1
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to URLs, including the malicious redirector. This suggests the primary purpose is to lure the user into clicking a link that leads to malicious content or further compromise.

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.ru/pify?keyword=andhra+pradesh+bhoodan+and+gramdan+act+1965+pdf
    • http://files.millpro.org/uploads/1/3/0/7/130776065/cba3e3e.pdf
    • http://files.sherrardtigerstv.com/uploads/1/3/1/3/131384301/zalakol.pdf
    • http://govizi.tmeansphotography.com/uploads/1/3/1/8/131856772/2510891.pdf
    • http://zumulev.unitethevillage.org/uploads/1/3/0/7/130739835/xeragonaxariw.pdf
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/71723271143.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/66268359779.pdf
    • https://cdn.shopify.com/s/files/1/0431/2370/3970/files/65752947777.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/jesus_bleibet_meine_freude_violin.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6361/files/xirelekasumuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/bank_note_press_dewas_question_papers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31931154882.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/android_attendance_system_project.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/gebavibirafez.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/xajudajematu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/xejowifenubuxujoxuxes.pdf
    • https://cdn.shopify.com/s/files/1/0448/1482/7677/files/xbox_button_layout.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_off0000602d.bin
55bef54116bb59fd368abbf3fa6b48e3fb9a1331333fa66b608a53b5ad054619
pdf-font-stream PDF embedded font (sfnt) at offset 0x602D 6152 bytes
font_01_sfnt_off000074e6.bin
af0242e363c7efcc086d6f54fe3c9c4de9e75416a128d1cbeb482709cf6c9fa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x74E6 9920 bytes