Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb894cee207ea477…

MALICIOUS

PDF

50.6 KB Created: 2020-08-23 22:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 597fac50e34bb1fc40324c3ea0e37b5f SHA-1: ee744bbcbee04e3c5e69613d85aa8bf228af13fe SHA-256: fb894cee207ea477c98b3b876f7d1abf46e6c6f59f5be648aab2f08d547c08c1
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one identified as a malicious redirector at https://ttraff.ru/pify?keyword=enrique+iglesias+bailando+english+version+mp4. The presence of a "visual download / call-to-action button lure" heuristic further suggests an intent to trick the user into clicking. The document body, though heavily obfuscated, contains this malicious URL and numerous other links hosted on Shopify and other domains, indicating a link farm or redirection strategy. No scripts were extracted from this sample.

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=enrique+iglesias+bailando+english+version+mp4
    • http://files.gorantrenchovski.com/uploads/1/3/0/7/130738790/rewedezanubevidof.pdf
    • http://files.trustmarkroofing.com/uploads/1/3/1/4/131437978/50bb689ed55ad23.pdf
    • http://files.naba-hairstreak.com/uploads/1/3/1/6/131606198/9017204.pdf
    • http://files.tucanursing.org/uploads/1/3/1/3/131383651/909854.pdf
    • http://files.bondkitchens.co.uk/uploads/1/3/0/9/130969469/628e7.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/zilapexosowufazijugogu.pdf
    • https://cdn.shopify.com/s/files/1/0447/5315/8298/files/zolelazovefage.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/weather_report_leeds_met_office.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sitomomuwarusubewikujo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8400/5032/files/xukemodawelo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/42753217527.pdf
    • https://cdn.shopify.com/s/files/1/0435/0446/8134/files/voximowatoseroxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/81632541721.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/room_service_menu_jackson_ms.pdf
    • https://cdn.shopify.com/s/files/1/0450/3198/1220/files/autocad_2013_software_free_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0430/9952/1178/files/sqlite_android_studio_image.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_off00006519.bin
e00e431aa08c3d0d594872adeb5ae34ade7ca3d1253a0c71ae1831060bfff08f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6519 5744 bytes
font_01_sfnt_off00007871.bin
8c01e0136a0df7f543734b117f1a63464be20e76eb73dfe440291fb242f7eed9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7871 10696 bytes
font_02_sfnt_off00009d2b.bin
9e8409b995ac2b0bb76eb3eb8dd1c90fa55d1c1c8a40bb5daa08ca4080948d13
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D2B 18776 bytes