Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1c6c3015dbf1fbb…

MALICIOUS

PDF

44.2 KB Created: 2020-08-13 11:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 969cd8ff05ff83e99bb45b50cf857dd2 SHA-1: f4d5ed6e7856705b05f189abd8299bdd255cf1ce SHA-256: b1c6c3015dbf1fbbfa9a376a599bed47abaa62d7bb83ce78f3ad8f5fb9d8f57e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The primary malicious URL is 'https://ttraff.com/wb?keyword=new%20company%20name%20list%20pdf', which is likely used to lure victims into clicking and potentially downloading further malicious content or engaging in phishing.

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/wb?keyword=new%20company%20name%20list%20pdf
    • http://juluxupi.godsgapnetwork.org/uploads/1/3/1/6/131606490/terow.pdf
    • http://files.onceuponacanvasbenicia.com/uploads/1/3/0/8/130873732/5898254.pdf
    • http://files.lovethesoberlife.com/uploads/1/3/1/8/131856851/lirawadixavavasusux.pdf
    • http://duxopi.eawim.com/uploads/1/3/2/8/132816202/mejatumogaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/40652074000.pdf
    • https://cdn.shopify.com/s/files/1/0450/3139/1396/files/fundamentals_of_organic_chemistry_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/oral_biology_textbook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/wenelerodutofatalemibawos.pdf
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/mobile_telephone_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/31108609680.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/free_depfile_login.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/leadership_theory_application_and_skill_development_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/walmart_employee_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/united_states_map_with_state_names.pdf
    • https://cdn.shopify.com/s/files/1/0428/7728/8611/files/certificate_of_work_experience.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/animal_adaptation_worksheets_5th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0435/5312/8612/files/9683969542.pdf
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/jivewixoni.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e84.bin
23a0c650c81a1e716addfcb9dbf0536172e748914102d9f869305d201982d3e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 5368 bytes
font_01_sfnt_off000080ca.bin
fa59ee06b1050ce1e764bd16bc9f542aae62c7ede7a7b6a2f65512dbc7263a88
pdf-font-stream PDF embedded font (sfnt) at offset 0x80CA 10328 bytes