Malicious PDF — malware analysis report

Static analysis result for SHA-256 89cfc0fd27628de1…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 00:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad7205b09f4c457e1527c3afe9f440ae SHA-1: fccea1adbcd2791ef7105f490bb826e40c147117 SHA-256: 89cfc0fd27628de14af741a668c104cb0f74e04a0fc64e5ea70d745bfc8b3808
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a critical redirector link, indicating a phishing or scam attempt. The primary malicious URL is `https://ttraff.cc/pify?keyword=network+controllers+drivers+windows+7`, which is designed to lure users with a promise of network drivers. The PDF structure and embedded links suggest a social engineering tactic to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=network+controllers+drivers+windows+7
    • http://files.andrewedmundsprints.com/uploads/1/3/2/6/132681295/ac692fc82.pdf
    • http://files.susanfisherart.com/uploads/1/3/0/7/130740252/15ffc1e33da9bdd.pdf
    • http://files.myworldofwildlife.com/uploads/1/3/0/9/130969190/gidokuzexej-tezogodewuk-xeribasara.pdf
    • http://files.ps212teacher.com/uploads/1/3/1/3/131398515/6953809.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/73261870964.pdf
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/66016750092.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/wotimakovuzibevizupaliteb.pdf
    • https://cdn.shopify.com/s/files/1/0431/2881/5783/files/50326039454.pdf
    • https://cdn.shopify.com/s/files/1/0436/1935/2739/files/sibipisizitalarefixid.pdf
    • https://cdn.shopify.com/s/files/1/0430/0354/3715/files/11248519124.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/45335691562.pdf
    • https://cdn.shopify.com/s/files/1/0436/8033/3989/files/ziterexaxomurujaz.pdf
    • https://cdn.shopify.com/s/files/1/0437/8981/1861/files/lirutob.pdf
    • https://cdn.shopify.com/s/files/1/0435/5283/3687/files/zojudirevatukovovujadewe.pdf
    • https://cdn.shopify.com/s/files/1/0437/5537/2695/files/tozenuba.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/zidaribipe.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0460/files/5876729337.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_off0000691a.bin
149b494e02591e369feaf10a4e121294d429470a68e062e3f6a3c17ec6631563		 pdf-font-stream PDF embedded font (sfnt) at offset 0x691A 4988 bytes
font_01_sfnt_off00007a4c.bin
3981a5f1e0cc2144d40ce47b8f818ba105e961d2694c821c67c0cdb5e74cad68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4C 10096 bytes

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