Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae64a710cf94a14a…

MALICIOUS

PDF

69.9 KB Created: 2020-08-11 22:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e89fae5f7c44a78db386a3701ffed1a SHA-1: 2b8dee0eb41e1dd5262161a94f140adb227d9832 SHA-256: ae64a710cf94a14a21a226df9277e3c7adb45ef330c2a939678c5dc9690da027
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious redirector URL is https://ttraff.ru/pify?keyword=phonetic+transcription+of+english+words+pdf, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a lure to download additional malicious files or visit compromised sites.

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=phonetic+transcription+of+english+words+pdf
    • http://files.ballmania.com/uploads/1/3/1/4/131437655/kakoxoxafin_buwopodikeku_jitinuto.pdf
    • http://files.shs-spartans.com/uploads/1/3/1/8/131857544/kogib_balisebotadogi_mafusul.pdf
    • http://files.engineersinmedicine.com/uploads/1/3/1/1/131163872/1139156.pdf
    • http://files.jonathanacollura.com/uploads/1/3/0/8/130874338/kesofexekasitix.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/fezexejelutawibi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9020/7139/files/nuxuribaralezusogomigoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/dodezerutujadobejitadeba.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/kiluj.pdf
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/1790842990.pdf
    • https://cdn.shopify.com/s/files/1/0434/3499/9975/files/fezeguwatewikaremosen.pdf
    • https://cdn.shopify.com/s/files/1/0430/9457/3205/files/agency_coupled_with_an_interest.pdf
    • https://cdn.shopify.com/s/files/1/0429/1562/7175/files/77347369540.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3120/files/catingueira_planta.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/67394793953.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0072/files/ejemplo_de_acta_constitutiva_mercantil.pdf
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/study_of_malarial_parasite.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/61085129368.pdf
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/zoditigenokiwakiduka.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_off0000ab23.bin
78082b52616ab167a1df581a61b5540ea10803c734104eed80aa32f3e58f8752
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB23 5508 bytes
font_01_sfnt_off0000bde0.bin
95f1de69b8de84fe494395d80cca2b123adb1e02fd273a3357100a2dd0d8d52c
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE0 16720 bytes
font_02_sfnt_off0000f32e.bin
6fffb1aeb89666cbcaec4ce24454e19e9ad5757041bd2745d7057949fb60916b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF32E 16116 bytes