Malicious PDF — malware analysis report

Static analysis result for SHA-256 b39b2bf493b07fab…

MALICIOUS

PDF

40.4 KB Created: 2020-08-04 16:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a3d6bb38a036a76f0e53da6f7b1a1e5 SHA-1: fe4c5ebcd5ae2231e05fb105eec6cf08b5f82e2a SHA-256: b39b2bf493b07fabf2e1e318b68ecb461294a8a33e707b13af72538b018c7f2a
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to traff.com. The document body, though heavily obfuscated, contains text related to a 'Star Wars Battlefront 2' game guide and the malicious URL. The PDF also contains a link farm heuristic, indicating a large number of external links, with the primary one being the malicious redirector.

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=star+wars+battlefront+2+prima+official+game+guide+pdf
    • http://files.lakeregionbiblechurch.org/uploads/1/3/0/8/130814644/8732544.pdf
    • http://files.camptowandastore.com/uploads/1/3/0/9/130969728/nuperufinil.pdf
    • http://files.mtalphacycling.org/uploads/1/3/0/9/130969370/visaxofutof.pdf
    • http://files.cristinacaruana.com/uploads/1/3/1/0/131069886/c9642871239.pdf
    • http://files.killasports.com/uploads/1/3/1/8/131871569/98a80.pdf
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/zegenamodozopoxil.pdf
    • https://cdn.shopify.com/s/files/1/0437/7244/4823/files/35968612127.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/7320457776.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/benesivijizasipinifego.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
    • https://cdn.shopify.com/s/files/1/0434/4256/9382/files/47839851185.pdf
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/78760682595.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/89500212444.pdf
    • https://cdn.shopify.com/s/files/1/0437/0389/4171/files/pizilazadolemafubap.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/7211409302.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/zenudofok.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/wejozowavemil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0684/4315/files/surirapixavetoxowefed.pdf
    • https://cdn.shopify.com/s/files/1/0435/3461/4688/files/bio_data_form_for_job.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_off00005c8a.bin
24f07137fb86016711f4922067db2b56b4ff34afa8282c481b3ae84461d3a8d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8A 5940 bytes
font_01_sfnt_off000070bb.bin
f48e2c2339f77138b421d1eb0267f8a8d4a09d86284041e6705d3080a79ce7a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x70BB 10312 bytes