Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4ed4e59631c2c3…

MALICIOUS

PDF

43.4 KB Created: 2020-08-25 02:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b349f0b9b129bf22daaed8bbcbd2ab9 SHA-1: 5125fc5ee05813e5f76f728b88e29728ad84e5fc SHA-256: 7c4ed4e59631c2c3f5b8dbc5fab5893505330a9e7c04412415f9d7c0f4aeeb30
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including a critical redirector link to traff.com, which is indicative of a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to presentation templates and includes the malicious URL. The presence of many external PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=free+presentation+folder+design+templates
    • http://files.floralcollage.com/uploads/1/3/0/8/130874063/vofobipadojikuwika.pdf
    • http://files.gatesphoto.net/uploads/1/3/1/4/131437680/93c826e8d51c.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/bollywood_top_100_songs_320kbps.pdf
    • https://cdn.shopify.com/s/files/1/0454/2342/7752/files/51607441639.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/repofudaworemosoxuligufuw.pdf
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/jomake.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/vijunax.pdf
    • https://cdn.shopify.com/s/files/1/0454/1018/9480/files/xuzemobarijakowekitugime.pdf
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/wononikupo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3332/7776/files/87895249329.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/tozoxulelisavoliga.pdf
    • https://cdn.shopify.com/s/files/1/0433/5186/7557/files/best_live_stream_sports_app_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0463/0321/5778/files/6540227932.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_off000061b8.bin
20ea785ddc999ee0abaad07b337bec430367248358d1f54f01cfeba0fc82abef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61B8 5316 bytes
font_01_sfnt_off000073aa.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73AA 2268 bytes
font_02_sfnt_off00007dba.bin
c9ae0fd892f01dabafd0dbea6e6c36d57a60fb59bd773b1f285807fd3ca6a8fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA 10132 bytes

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