Malicious PDF — malware analysis report

Static analysis result for SHA-256 306f1b750ed1f576…

MALICIOUS

PDF

42.4 KB Created: 2020-08-26 15:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7685feb6ae452e8dd996cb0f45cc938a SHA-1: d78b7ef617966ea3cb461aeed7099bdab512f8ba SHA-256: 306f1b750ed1f5763b461773a7b228ee073474297c14bd270e67385b427f3581
120 Risk Score

Malware Insights

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

The PDF file 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=hamlet+act+2+guided+reading+question, is identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain the same malicious URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted, limiting further analysis of the payload.

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=hamlet+act+2+guided+reading+question
    • http://rebiwi.garydrakeart.com/uploads/1/3/0/7/130775537/e6d28e.pdf
    • http://files.shortersettlements.com/uploads/1/3/1/4/131482968/forufepumukodofawuj.pdf
    • http://files.bloomingdalecorporatecenter.com/uploads/1/3/0/7/130775751/1f12f8f63.pdf
    • http://xoravupam.pinkeypuzzles.com/uploads/1/3/1/3/131379182/zebigobu.pdf
    • http://files.lifeandmusic.org/uploads/1/3/1/8/131871705/4912853.pdf
    • https://cdn.shopify.com/s/files/1/0461/9835/8165/files/amoxicilina_875mg_bula.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7056/files/bot_weapons_and_equipment.pdf
    • https://cdn.shopify.com/s/files/1/0439/2439/0056/files/pojerize.pdf
    • https://cdn.shopify.com/s/files/1/0439/4637/7374/files/70975585992.pdf
    • https://cdn.shopify.com/s/files/1/0433/4980/3162/files/kakamilagamubesamopumuxeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/8253/7365/files/kosavanomusuranag.pdf
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/deficiencia_de_acido_folico_en_el_embarazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/zokukumigazelatufezide.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/36379895607.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5903401900.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_off0000586b.bin
a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x586B 6440 bytes
font_01_sfnt_off0000685f.bin
430d88ccf866e0725bc36811008f1835117c024d38ecefa0cc76271eb154ab75
pdf-font-stream PDF embedded font (sfnt) at offset 0x685F 5480 bytes
font_02_sfnt_off00007ae0.bin
0146622f8dc967d7bea4bfdef11a3a11702da9438bc73f7d93b40513f0bc7e53
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE0 9840 bytes