Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f85388b942a8e6…

MALICIOUS

PDF

50.5 KB Created: 2020-08-04 05:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94fb8956d713f75c824d7b017bdf3e8c SHA-1: 079428835027a63e215e08b640c3e36bedc2d16e SHA-256: a2f85388b942a8e623e22c7b9a0c7c3d789e058e14c8ca859b688eb112acd13e
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which are hosted on Shopify and appear to be SEO spam. One prominent link, disguised as a job interview guide, redirects to malicious infrastructure at 'ttraff.cc'. This indicates a phishing or redirection attack aimed at leading users to potentially harmful content. 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.cc/pify?keyword=preparing+for+a+job+interview+questions+and+answers+pdf
    • http://files.brettstotalstumpgrinding.com/uploads/1/3/0/8/130814529/pusaj_sokilelulesejug_jowimobodaku_tusokarabus.pdf
    • http://files.4hcampohio.org/uploads/1/3/1/4/131453208/fifaxedilebabix_nigute_jumod_rapekarugiki.pdf
    • http://zixad.cliftonrefugeesponsorship.co.uk/uploads/1/3/1/3/131398091/ed928918ed4751.pdf
    • http://files.wearefocalshot.com/uploads/1/3/1/4/131455158/gagowolejotix.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/83552765900.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
    • https://cdn.shopify.com/s/files/1/0432/1945/2072/files/donajojubikilaxogavef.pdf
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/22006688468.pdf
    • https://cdn.shopify.com/s/files/1/0434/9093/4949/files/suwujukosepixutota.pdf
    • https://cdn.shopify.com/s/files/1/0434/1094/8254/files/9348574861.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/26390296427.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/zozunajenavakefavuno.pdf
    • https://cdn.shopify.com/s/files/1/0438/0655/6322/files/you_cam_5._0.pdf
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/kusadabaxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0503/files/girurororatupotejujalum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.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_off000076f2.bin
014714646de78935532190b6e1a284a6c052a44846d59dd61a415d3005a43b62
pdf-font-stream PDF embedded font (sfnt) at offset 0x76F2 5552 bytes
font_01_sfnt_off000089de.bin
a140c002b7b419dae70765415bec6d469249dbe25df5b73fcfc9aa038e2b2cb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 10628 bytes
font_02_sfnt_off0000ae24.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE24 4324 bytes