Malicious PDF — malware analysis report

Static analysis result for SHA-256 e28bb968ab9d48a6…

MALICIOUS

PDF

39.8 KB Created: 2020-08-06 01:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fd33d8622e7f583e50d81dbbe5cb070 SHA-1: 46e168fa646970a5b70c2cc6e2bf325f721c1ce1 SHA-256: e28bb968ab9d48a66ef53085a1d6ff1317a4ea002472c9119678140213bff7a9
120 Risk Score

Malware Insights

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

The PDF document contains a significant number of embedded links, with one identified as a malicious redirector. The document body itself is heavily obfuscated but contains the URL 'https://ttraff.com/pify?keyword=small+scale+broiler+production+pdf', which is flagged as malicious. The presence of numerous other links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate malicious destination. 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=small+scale+broiler+production+pdf
    • http://files.paxcon.org/uploads/1/3/0/7/130775001/kizipesa_rukinifodifi.pdf
    • http://files.bestmassageinpensacola.com/uploads/1/3/1/4/131406563/fedozuraxubil_rogekefafej_pubuwumunik_paduwapiwuji.pdf
    • http://files.carmonaconsulting.com/uploads/1/3/1/4/131483154/a2a837e.pdf
    • http://pegop.brellaboxfishing.com/uploads/1/3/0/7/130775320/6484945.pdf
    • http://files.flanagansnews.com/uploads/1/3/1/8/131871814/1749827.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/kosibatodoziladirumoseli.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/dugulewubetagexelaluzedek.pdf
    • https://cdn.shopify.com/s/files/1/0437/9662/7616/files/47305440850.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/the_gregg_reference_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/3842/5766/files/ledomifejazotidafuvezog.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/zilawinukefarodadikesox.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/87656845168.pdf
    • https://cdn.shopify.com/s/files/1/0431/2141/0210/files/78608754661.pdf
    • https://cdn.shopify.com/s/files/1/0440/3517/8661/files/goranimadabavilerunifibe.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/zupedazazok.pdf
    • https://cdn.shopify.com/s/files/1/0436/9727/5033/files/5063131249.pdf
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/gigisi.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_off00005f25.bin
0e566e284946a791f1d9bddd926bacc897af3f5405a5a53cec3a285227a52178
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F25 5544 bytes
font_01_sfnt_off000071d7.bin
5b9cf27e33106a1c7c2e2359cb7d68b70918852d1c55f58f939c4d6f3bb4f89c
pdf-font-stream PDF embedded font (sfnt) at offset 0x71D7 9588 bytes