Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba0c7407c72ad4d…

MALICIOUS

PDF

122.8 KB Created: 2020-08-07 16:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 810715c7d23a74aa327a0702d927764f SHA-1: 7f92856f46030e648a88a719e60b261e13347885 SHA-256: 9ba0c7407c72ad4da169c47d2685e3fdf129b64a6a7b5caba7078988e0818fd8
120 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'. Additionally, it exhibits a PDF link farm heuristic, indicating an attempt to distribute multiple links. The embedded document body text, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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=amorphous+solid+dispersions+theory+and+practice+pdf
    • http://files.dianashepherd.co.uk/uploads/1/3/0/7/130739144/nafav.pdf
    • http://niraguso.rubicreations.com/uploads/1/3/1/1/131164250/567692ad.pdf
    • http://files.alliesadornments.com/uploads/1/3/0/7/130776875/mizezubaxeza.pdf
    • http://files.clubroyaleboca.com/uploads/1/3/1/4/131407424/8364201.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/51535251892.pdf
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/jubiguba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4354/4488/files/bk_precision_1550.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/electric_fence_7_days_to_die.pdf
    • https://cdn.shopify.com/s/files/1/0430/5443/2410/files/razidikodeweseka.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/frases_hechas_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0428/4838/7239/files/68458852402.pdf
    • https://cdn.shopify.com/s/files/1/0429/6740/0601/files/angularjs_4_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/56856581747.pdf
    • https://cdn.shopify.com/s/files/1/0441/3403/9704/files/19333598993.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_off0001a1a7.bin
071d950808abd4acd4c66a3a1fb34f6b298d9cc3a8253cb258b0b06fada4db2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A1A7 5484 bytes
font_01_sfnt_off0001b42b.bin
52e53f401f1f3db22e2caba9640ffa9968e2e9cb67c14d525969e8c5257bf3a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B42B 12784 bytes

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