Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3bd9b948b8716cb…

MALICIOUS

PDF

41.1 KB Created: 2020-08-15 03:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2fd8bdf76718e00a85b364e4679452e SHA-1: 2dd99cf20e19ff6153fc39271577af125823d326 SHA-256: e3bd9b948b8716cb295e2da17663300758ece675f991757cfdf4d7fafc7187b8
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=puzzle+baron+logic+puzzle+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily corrupted, contains fragments of the malicious URL and benign-looking text, suggesting a lure to entice users to click the malicious link. The presence of a redirector indicates an attempt to lead the user to a malicious site for further compromise.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=puzzle+baron+logic+puzzle+answers
    • http://files.theschooloffinetuning.com/uploads/1/3/0/9/130969505/dovefuzazewav.pdf
    • http://rofuwip.pack283.net/uploads/1/3/1/4/131437906/sebaxuva-luvezel-wufafodi-kepudumireg.pdf
    • http://files.vacationworld.co/uploads/1/3/0/9/130969655/eb021a920b11.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/17454392735.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/forgotten_realms_interactive_atlas_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/4204374207.pdf
    • https://cdn.shopify.com/s/files/1/0434/4715/6903/files/razapakudelonukibuzaxor.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/netewiroragugulogawatup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53981477141.pdf
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/66808950814.pdf
    • https://cdn.shopify.com/s/files/1/0431/2530/9601/files/99738896200.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4939/files/numusabuzipozefosopibuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2399/files/87323780844.pdf
    • https://cdn.shopify.com/s/files/1/0449/4170/5384/files/baybayin_the_syllabic_alphabet_of_the_tagalogs.pdf
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/dr_dre_the_chronic_2001_zip.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_off00005c29.bin
9e5c3ecc1d10285a9a0819285f576ffee201ac977e40bc43ff596c41d8058aea
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C29 5384 bytes
font_01_sfnt_off00006e9a.bin
b746a63ffbfdf3682e6343de7507ef2b7b7cd52332caa3ada1224db13fcb7807
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9A 12992 bytes