Malicious PDF — malware analysis report

Static analysis result for SHA-256 9534427bb155f680…

MALICIOUS

PDF

38.4 KB Created: 2020-08-21 12:21:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ada7c9494302549aa89ae5008a5bc32e SHA-1: c253699b285b8cfdae657c442a2a1b23f74413ff SHA-256: 9534427bb155f68039b077db732ec411288de2a1f41ef242180207ffa1fca15c
150 Risk Score

Malware Insights

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

The PDF contains a link farm, with multiple embedded links pointing to various domains, including a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'Juice wrld lucid dreams piano sheet music', suggesting a lure to attract users to click on the malicious links. The primary malicious link identified is https://ttraff.com/pify?keyword=juice+wrld+lucid+dreams+piano+sheet+music, which is likely used to redirect users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=juice+wrld+lucid+dreams+piano+sheet+music
    • http://zozod.sunandachatterjee.com/uploads/1/3/1/0/131070450/joziduvo_jusopelazevob.pdf
    • http://gabilinol.shopprettyplaces.com/uploads/1/3/2/6/132682076/kekinewosi.pdf
    • http://gipofokeg.churchillpublishing.net/uploads/1/3/0/8/130814328/jilexipoverazejodok.pdf
    • http://files.herndonwomansclub.org/uploads/1/3/1/4/131453267/zuvofetotirumiv_gukivu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/2037255090.pdf
    • https://cdn.shopify.com/s/files/1/0434/9270/4408/files/61522111635.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1049/files/tobijupebulilexuduxo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/36550680766.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/88834217929.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/64231190174.pdf
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/filing_a_police_report_in_san_diego.pdf
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/arbeitsvertrag_minijob.pdf
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/the_abilene_paradox_the_management_of_agreement.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7566/files/tezad.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/51668274067.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/autoimmune_hepatitis_diet.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_off00004a04.bin
9213075c4ef50c1a07699983ddf8418304a5dd349aa23157237f41c314aaea84
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A04 5396 bytes
font_01_sfnt_off00005c39.bin
1f02f66afee83b8c8b5ea5d03a4dffaccb352581434016dfb53897f12c6f8815
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C39 14596 bytes