Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea133a7223249032…

MALICIOUS

PDF

55.9 KB Created: 2020-08-12 15:34:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 967bfafc056b52bb1b0862d3fe940569 SHA-1: 0c7899e6141d84af632d7f42484edce5e62cddb8 SHA-256: ea133a72232490329371630b99765cb27e12012d8546dd05ad662b57b5df2016
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to potentially malicious redirectors. One such link, 'https://ttraff.ru/pify?keyword=business+strategy+meaning+pdf', is explicitly flagged as malicious. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to a malicious site disguised as a document. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.

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.ru/pify?keyword=business+strategy+meaning+pdf
    • http://files.thefugitivesailing.com/uploads/1/3/2/6/132681855/toziwudukaw.pdf
    • http://files.rebavaventure.com/uploads/1/3/1/3/131380825/136980.pdf
    • http://files.carpediem-photo.com/uploads/1/3/0/8/130874205/f1d461fdb.pdf
    • http://files.brickhousellamas.com/uploads/1/3/0/7/130739693/gexawenik_jozoboge_baberogezi.pdf
    • http://files.dandelionkisscustomphotojewelry.com/uploads/1/3/0/7/130775245/mezujolese.pdf
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/container_dimensions_in_cm.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/lifopajokapevisadosatuvo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/47549289401.pdf
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/could_not_find_ggplot.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/algorithms_illuminated_part_3_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/34400516255.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/vector_free_f6uov6ekpukelm_10__null_generic.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/imagine_dragons_believer_piano_notes.pdf
    • https://cdn.shopify.com/s/files/1/0440/5762/4726/files/87436914630.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/40983845664.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/16440287921.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/javunolenetebemidomur.pdf
    • https://cdn.shopify.com/s/files/1/0434/3696/6055/files/nirejubujemuzejaxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/toyota_forklift_service_manual_free_download.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_off00009c2a.bin
e22adb74eda8981e67a74967fd618cd36a71155ff4f60d2ac9d219216b327733
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2A 5480 bytes
font_01_sfnt_off0000aec2.bin
98f3c43e0f36916c5994409fabf132220b050f68d933017bb3e5fdf6676446d9
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEC2 10472 bytes