Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e911655fc0c262f…

MALICIOUS

PDF

62.0 KB Created: 2020-08-06 05:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44f4c7c5205a8fbfbdf5068bd508c6d0 SHA-1: b51bde5b058b1e3c9bf359eb697d0e0a3a560118 SHA-256: 3e911655fc0c262f4450fd66ba4627b560eb7a6da5cd9f3968e746360e3f2032
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.com/pify?keyword=administrative+law+in+nigeria+noun+pdf, is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated.

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.com/pify?keyword=administrative+law+in+nigeria+noun+pdf
    • http://files.peachfuzztranslations.com/uploads/1/3/0/7/130775735/4400945.pdf
    • http://zetuwoju.ankatriencasselman.com/uploads/1/3/0/8/130874474/gukazemu.pdf
    • http://files.thenewschoolpreschool.com/uploads/1/3/2/6/132681201/luwetixesi_repukugo_zarujarufinizod.pdf
    • http://files.lagoonpondrealty.com/uploads/1/3/1/6/131607374/9733153.pdf
    • http://files.whitecoatantidote.org/uploads/1/3/0/7/130775427/2635755.pdf
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/safinuwibipajo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/basic_accounts_payable_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/aquelarre_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/road_ranger_travel_trailer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/48587191685.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/kipigutiwalav.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/35419803570.pdf
    • https://cdn.shopify.com/s/files/1/0437/5969/8077/files/bumoferelofef.pdf
    • https://cdn.shopify.com/s/files/1/0434/5095/7974/files/vuvativojedadovirafiramov.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/47628429116.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/46961466833.pdf
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/niwuxodimolofubodokolu.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_off00009669.bin
ef1855c854573b960633abe12203005d7ab6b6ccabbaf432a7447321adbc074a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9669 9016 bytes
font_01_sfnt_off0000b476.bin
ba0fb3e2043378b1072ec17e02f821a55275d6bcad6051be761dc4e376d5ccc9
pdf-font-stream PDF embedded font (sfnt) at offset 0xB476 5500 bytes
font_02_sfnt_off0000c729.bin
86bd0a78f25b7c49d0f2f9fc0e7902056a06a1c94010c0e2fb4bee689160479d
pdf-font-stream PDF embedded font (sfnt) at offset 0xC729 10376 bytes