Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d7704734c5e33c8…

MALICIOUS

PDF

40.5 KB Created: 2020-08-17 04:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ac18710a13547d01ffd94187feea6ad SHA-1: b82da061435d067240a2127cd0154d386d926f96 SHA-256: 3d7704734c5e33c88e543a4303dff30a5eb2cbd3e45b21c238c6bb279c056143
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=naming+molecular+compounds+pogil+answer+key'. The document body, though heavily obfuscated, appears to contain the same lure text as the embedded link, suggesting an attempt to trick users into clicking through to malicious sites.

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=naming+molecular+compounds+pogil+answer+key
    • http://tibafa.casapalomabandb.com/uploads/1/3/0/7/130776099/72ffe6605fe.pdf
    • http://files.pupchella.com/uploads/1/3/0/7/130775009/fakalabovat.pdf
    • http://files.delloewenthalphotography.com/uploads/1/3/1/4/131437806/6574307.pdf
    • http://kesomib.aerialfittv.com/uploads/1/3/1/4/131452977/toxiruwiw_zetiwep.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/kadazitijepejiveruwopopen.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/31379170009.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1287/files/5764328097.pdf
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/tuxakagutizukobibat.pdf
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/biometria_hematica_valores_normales.pdf
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/83793272981.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/liquidez_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0435/8098/1407/files/55325404625.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0976/files/pibasiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/51264780290.pdf
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/69967220662.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_off0000551d.bin
03b6f6572cf00816ea67482261a2edf6775da56e2660a9d7684a15d0f0806632		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551D 5620 bytes
font_01_sfnt_off0000683c.bin
1bd3b278247c69ffe9a893b58a10225fdb894be2bd299879a69fa70531850026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x683C 14356 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.