Malicious PDF — malware analysis report

Static analysis result for SHA-256 01708b26553da12c…

MALICIOUS

PDF

46.8 KB Created: 2020-08-07 15:09:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b477ab607294ca45b1d7be60e9b22a48 SHA-1: b890cd748eb812250e76bfd99bfc1a93e1596248 SHA-256: 01708b26553da12c24452d27fb17468360109d00d2220b462385e64942f54e5e
154 Risk Score

Malware Insights

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

The PDF document contains numerous links, including a critical redirector link to 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, includes the same URL and appears to be a lure related to 'social media addiction articles'. The ML classifier also strongly indicated maliciousness. This suggests the PDF is designed to lead users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=social+media+addiction+articles+pdf
    • http://files.xcores.org/uploads/1/3/1/4/131438019/sunufatiwoja_jafagepexovosis_gotusekunelika_dupudewimezol.pdf
    • http://niwif.kidney4keisha.com/uploads/1/3/0/9/130969060/ridisugag-befiwabidakub.pdf
    • http://files.garimaahuja.com/uploads/1/3/2/6/132681992/vovazudalenoxoniw.pdf
    • http://files.belinda-jones.com/uploads/1/3/2/7/132712093/lukilevunumu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/63381931883.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/rigavavaxovasoluluvupefe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/nuwop.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/nubiko.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/muvoligefelurinelibawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/adenoma_hipofisrio.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/6917721034.pdf
    • https://cdn.shopify.com/s/files/1/0443/6099/0876/files/basic_computer_questions_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/lofusinorefirav.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/suwibumabitalunatinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/chilis_menu_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/2371/1903/files/bsl_fingerspelling_alphabet.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/wurowakiva.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079f7.bin
5e9edc33e97d3eb18973d149994c4ba1e9760cda82af7174d314cabf59259947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79F7 5404 bytes
font_01_sfnt_off00008c42.bin
d614e1647da4715c496c8561090cfbd8439ed2f5701f41a1b6ed5c09343d04f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C42 10184 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.