Malicious PDF — malware analysis report

Static analysis result for SHA-256 935ee0d4514c1177…

MALICIOUS

PDF

39.8 KB Created: 2020-08-24 00:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8927b427380698499868d150c0b3401 SHA-1: 24b8c54b987d3978cd14d41983662dbfc232d913 SHA-256: 935ee0d4514c117779ac63fe361bd0da1fd7ad195f46c4c90200390d5bb4e902
160 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document's content is designed to trick the user into installing something, likely to facilitate further malicious activity. The presence of the malicious redirector URL strongly suggests the intent is to lead the user to a malicious site for credential harvesting or malware delivery.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=videoder+er+apk
    • http://veferajor.tskjesusfreak.com/uploads/1/3/2/6/132680835/noxezafipewodabofome.pdf
    • http://files.westchestercounties.com/uploads/1/3/0/7/130740536/sunowukogafeseve.pdf
    • http://files.vasanthivanniasingham.com/uploads/1/3/1/3/131384424/xevimonibofoviki.pdf
    • http://files.moabrecycles.com/uploads/1/3/0/8/130873895/tebarawesojirezexuj.pdf
    • http://povabunu.thetamcgill.com/uploads/1/3/1/4/131482976/legulefewa.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/vekotebigoxuwili.pdf
    • https://cdn.shopify.com/s/files/1/0451/2425/5898/files/cards_against_humanity_anime_expansion.pdf
    • https://cdn.shopify.com/s/files/1/0438/6603/0245/files/converter_para_autocad_online_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/8694/6206/files/schaeffler_tapered_roller_bearing_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/94828422970.pdf
    • https://cdn.shopify.com/s/files/1/0429/9839/9139/files/vijekatimojotikakomarolel.pdf
    • https://cdn.shopify.com/s/files/1/0437/6290/9335/files/10718644949.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/l_alphabet_francais_avec_des_mots.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/dust_of_disappearance_5e.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/dozuripumevum.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/bokibuzamavikafenofadib.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/kumano_kodo_self_guided_tour.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_off00006012.bin
baada6f635a21ce02c2c331b185d5f396d3d121789b5523ed58e3142ee501e01
pdf-font-stream PDF embedded font (sfnt) at offset 0x6012 4772 bytes
font_01_sfnt_off0000705a.bin
6a7e395d88dd80c0b5f3b4c7bde503a877b18dec4a491de780aa7972228489a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x705A 9908 bytes