Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ca6b951e584e7e…

MALICIOUS

PDF

43.5 KB Created: 2020-08-22 09:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee2df9154b825f84ca181f72bc23ac39 SHA-1: 1a488829ab7f87fb4ccef0fa21d798dcc8787450 SHA-256: d9ca6b951e584e7e06d58fb4ee219161782064c80b99a20786748c09d58f7a53
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=nts+kp+tevta+application+form'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to an application form and the redirector URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=nts+kp+tevta+application+form
    • http://files.michiganskymedia.com/uploads/1/3/0/7/130775784/memowi_ripofo_xusulemales.pdf
    • http://files.nancytmassagetherapy.com/uploads/1/3/1/3/131397946/4690827.pdf
    • http://files.royglobalized.net/uploads/1/3/0/9/130969526/d165178db93f9a.pdf
    • http://vuxubiwod.katieloustudios.com/uploads/1/3/1/8/131858540/561d9e2c1fd.pdf
    • http://files.missinginamericaproductions.net/uploads/1/3/0/7/130740056/roxaduvanopamizun.pdf
    • https://cdn.shopify.com/s/files/1/0427/9461/4940/files/printable_cricket_score_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/12556951021.pdf
    • https://cdn.shopify.com/s/files/1/0438/4541/9165/files/readings_in_ancient_greek_philosophy_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0441/3744/7576/files/vidyalaya_prabandhan.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/zufiluduka.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/zerikeronajafikabu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6451/4967/files/puweweponedoxuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/treasure_trails_coordinates.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/jebisineg.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9401/files/detusevonufapagidujunusa.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_off00005f30.bin
8087a855bf7d7ae364003dea1480c0e54bcc011d1bb13daaba8f182d48bed4d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F30 5044 bytes
font_01_sfnt_off0000703d.bin
f3619d11a475d1700352636d60760cf2a77e380843f29756502e05c59a168248
pdf-font-stream PDF embedded font (sfnt) at offset 0x703D 10208 bytes
font_02_sfnt_off0000932b.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x932B 4324 bytes