Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e4179fd2928d27…

MALICIOUS

PDF

53.5 KB Created: 2020-08-04 08:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89676a24d1b30b229fc6f0b0b6fbf9ca SHA-1: 180af5b6abdcf1e381cf5f8ef9a3e8f7fff81cb3 SHA-256: b7e4179fd2928d27f3c1d330ea5f38e1beac77bb4712e47854aa7c45ab924faa
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 characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to lure the user to this external resource. 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=iluminasi+cahaya+pdf
    • http://files.lubbocknorthyouth.org/uploads/1/3/1/4/131408572/af29f34bf1789c3.pdf
    • http://files.kstechtwins.com/uploads/1/3/2/7/132740564/kewotagu.pdf
    • http://files.worryknot.co.uk/uploads/1/3/0/7/130738943/tifim.pdf
    • http://files.jessicageoff.com/uploads/1/3/1/4/131438111/efb4375d.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/20731333603.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/83318332642.pdf
    • https://cdn.shopify.com/s/files/1/0432/9875/0619/files/21946233432.pdf
    • https://cdn.shopify.com/s/files/1/0433/5003/2549/files/betanaxarebexijisesikaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/tabetidamejisoka.pdf
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/juwopijivufetesir.pdf
    • https://cdn.shopify.com/s/files/1/0440/6332/6358/files/98805436449.pdf
    • https://cdn.shopify.com/s/files/1/0440/4923/6118/files/xifisejawipajepajogiveviv.pdf
    • https://cdn.shopify.com/s/files/1/0437/5658/5111/files/32630831643.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0598/files/62642416674.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/savurekok.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/nodawanidadufukoretebudup.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_off0000863d.bin
e8e9ef48130af032e40247c823b0b5c347ab0297c100be73859d7aa02a9c9155		 pdf-font-stream PDF embedded font (sfnt) at offset 0x863D 2848 bytes
font_01_sfnt_off00009286.bin
892f6c660fe459cd51a598a0d023fee5bd86220aea727248cc72cf01e2fc05a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9286 5340 bytes
font_02_sfnt_off0000a491.bin
29bc971e4f00b67bdb919d53e3f30477f1d5ee9ae94055dcbafc928de9a68fba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA491 10848 bytes

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