Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0aeb6b0d93aefc8…

MALICIOUS

PDF

38.2 KB Created: 2020-08-22 09:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60183f532c3aad3e788267cfb8fa79f4 SHA-1: 2131bc0cf3e34c974f0f1a62e7a282fbac842072 SHA-256: b0aeb6b0d93aefc830a7e6cd7dcd99a6b6f778c0d4ff77a5a4eadf0fb7069cfb
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 URL identified is https://ttraff.cc/pify?keyword=comparing+fiction+and+nonfiction+worksheets, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'comparing fiction and nonfiction worksheets', suggesting a lure to disguise the malicious intent. The presence of numerous external links, including those hosted on Shopify, indicates an attempt to distribute malicious content or phishing pages.

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.cc/pify?keyword=comparing+fiction+and+nonfiction+worksheets
    • http://situs.morristownderbydays.com/uploads/1/3/2/6/132681337/9653898.pdf
    • http://gupugere.ptahinitiative.com/uploads/1/3/2/8/132814930/8930888.pdf
    • http://files.613studentrentals.com/uploads/1/3/2/6/132695915/lulakitafupapokitizi.pdf
    • https://cdn.shopify.com/s/files/1/0459/6101/9551/files/zavoxewif.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/present_perfect_tense_simple_past_tense_test.pdf
    • https://cdn.shopify.com/s/files/1/0450/1897/2318/files/blouse_back_neck_designs_cutting_videos.pdf
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/19321692447.pdf
    • https://cdn.shopify.com/s/files/1/0437/7300/1889/files/cyber_hunter_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.pdf
    • https://cdn.shopify.com/s/files/1/0440/7197/7110/files/beyondpay_login_easter_seals.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sitadekekogog.pdf
    • https://cdn.shopify.com/s/files/1/0432/9740/7126/files/befefanuvumo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6583/files/86190865369.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_off00004d97.bin
a084e747fa298147b66385ebf06879a2b083cf03a16a4289a38bc2a7df9f4204
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D97 5596 bytes
font_01_sfnt_off00006081.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 1800 bytes
font_02_sfnt_off0000690f.bin
5cb8a754c96786270237542f2a38b14813ece53a1fdbbc06ff37c4b954803823
pdf-font-stream PDF embedded font (sfnt) at offset 0x690F 10032 bytes