Malicious PDF — malware analysis report

Static analysis result for SHA-256 23a03edd806daf57…

MALICIOUS

PDF

45.7 KB Created: 2020-08-20 00:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2b7d682f15724e4260c07903f426709 SHA-1: baba3a62ac94e3cd48014377e6af7e5944b2bd65 SHA-256: 23a03edd806daf57291d1ade4aca5904744cb55107adf2b0a648a7c02ad077e8
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'. This indicates a phishing or scam attempt. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to drive traffic to the malicious redirector.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cdr+pdf+converter+online
    • http://gezose.thebutterflyroom.org/uploads/1/3/1/4/131453574/jetar-giduwogibez-lajobevawutipo-koregigu.pdf
    • http://jomagag.pvtchefnikko.com/uploads/1/3/1/1/131164239/jabotiviwepi.pdf
    • http://files.storytellerskgregory.com/uploads/1/3/2/7/132740880/1eb9173b2.pdf
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/bekenugaselo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3460/5730/files/el_bestiario_libro.pdf
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/quran_bangla_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/40987591805.pdf
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/cateye_velo_7_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/english_syntax_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8456/files/pabetipivoxopisebazafaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/negomigexegididepagage.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/48300670583.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_off00005e4b.bin
8892bde12f84add41e61992400ca6b0474d12146f1c4b0ad325a696249a20852		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4B 4728 bytes
font_01_sfnt_off00006e78.bin
bb86fd8de1fda9e2a342989046fc6f049ab360cacf68086cfe9c71aa90cf3d5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E78 13096 bytes
font_02_sfnt_off00009584.bin
9d161d6e34f835aff196e226d852edde4d65b072a4902c32411b177d8c29261e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9584 16076 bytes

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