Malicious PDF — malware analysis report

Static analysis result for SHA-256 a71fefc9c94887ee…

MALICIOUS

PDF

63.9 KB Created: 2020-08-22 09:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4aee8fe617a0666f44cb5c25c9251295 SHA-1: c981197a38a19b8fde4d6a4bf25c9980c2ab871b SHA-256: a71fefc9c94887eeef7f149e837fa50a05a724dea7d9ce5a110f4e1349dfed4a
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, https://ttraff.com/pify?keyword=protractor+jasmine+json+reporter, is flagged as a redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a broad SEO spam or phishing campaign.

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=protractor+jasmine+json+reporter
    • http://files.thenterprisegroup.com/uploads/1/3/1/4/131452922/bc1adbeae715a85.pdf
    • http://ledomojun.powersourcedubai.com/uploads/1/3/0/8/130813714/lifelonug-palobatumonarad-narerogat.pdf
    • http://bifidog.aprilsandersphd.com/uploads/1/3/1/0/131070374/pobogerawemuser.pdf
    • https://cdn.shopify.com/s/files/1/0433/2693/1099/files/spleen_de_paris_baudelaire.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/how_to_port_forward_node_js_server.pdf
    • https://cdn.shopify.com/s/files/1/0453/5566/3515/files/gametogenesis_pada_tumbuhan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9213/2511/files/51103377007.pdf
    • https://cdn.shopify.com/s/files/1/0430/2081/2441/files/lamarakixogodigux.pdf
    • https://cdn.shopify.com/s/files/1/0430/8326/8257/files/dakex.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/attitude_scale.pdf
    • https://cdn.shopify.com/s/files/1/0429/6173/1743/files/lymphatic_malformation_of_the_neck_and_tongue.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/witaxisasefilatadinamuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/xoxukagodemawodasivuzeso.pdf
    • https://cdn.shopify.com/s/files/1/0454/6166/7992/files/google_spreadsheet_sumif_two_conditions.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/1st_grade_reading_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4882/files/mudijadopiwosoxadatida.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/42379755004.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_off0000a51f.bin
cf9ab6071937efb5c0e7326623a86b2d7a4aed049ec98faa12e4a372feaa40a9
pdf-font-stream PDF embedded font (sfnt) at offset 0xA51F 4912 bytes
font_01_sfnt_off0000b5ab.bin
e92c686e1bfd398508c96f65b64b25cb34495a66112f92b5ed78fe331a156502
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5AB 15048 bytes
font_02_sfnt_off0000e4a4.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A4 4324 bytes