Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0672ee5973e5ce…

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 20:27:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 057ee685e5f18ffec80bc2f917bd7356 SHA-1: 3e34058e5ebd023cf00a6c4b50c6e4a49dfb67a0 SHA-256: 2e0672ee5973e5ceb9455c55c1e3e9bf33ddd0a5d6fc5e4d362e4e4234fee0bf
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking title suggesting a lure for educational content. The primary attack pattern involves redirecting the user to malicious infrastructure via a deceptive link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=interaction+2+reading+silver+edition+answer+key
    • http://files.genewildest.com/uploads/1/3/1/6/131636903/2597369.pdf
    • http://polafonat.adorote.org/uploads/1/3/1/4/131408024/misuduzelononezevine.pdf
    • http://files.fiddleheadsurbanforestschool.com/uploads/1/3/1/3/131384436/xalelezusulozox.pdf
    • http://urlgoal.com/ilemekey
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/13740757167.pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7203/files/funazixewinafuzaku.pdf
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/zipoteramemukakevilip.pdf
    • https://cdn.shopify.com/s/files/1/0431/3183/0421/files/xodebotilos.pdf
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/69668965320.pdf
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/treasury_challan_form_odisha_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8034/1917/files/pogitemixubedido.pdf
    • https://cdn.shopify.com/s/files/1/0434/4925/4050/files/84214652865.pdf
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/vugag.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/72629804201.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/facebook_app_install.pdf
    • https://cdn.shopify.com/s/files/1/0440/7666/2949/files/39334975566.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_off000071ad.bin
162174465c6f2164026c445d72ea0acddefbbc3853584c9c1305c9b84417c3e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x71AD 5496 bytes
font_01_sfnt_off0000847e.bin
1c3664bbac55a303d5f72d2d128a3668900302cfbed9a171e2c04a88b5d7b4cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x847E 11408 bytes