Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ec8f9584250613…

MALICIOUS

PDF

61.8 KB Created: 2020-08-19 03:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 061fd1b7864c17e48743779eeaacb2c6 SHA-1: f4dbee424130b93d3b767718b6e35a5d0dfb4383 SHA-256: b2ec8f95842506133821327382d309b45212f3e618dc8cef717240142c8f6e6b
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Phuket thailand travel guide' and the malicious URL, suggesting a lure to disguise the malicious intent. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating a phishing or redirection campaign.

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.ru/pify?keyword=phuket+thailand+travel+guide
    • http://files.scogbahn.co.uk/uploads/1/3/2/6/132696113/nimulidiguve_lulevufenavotof_berufupuduxirok_vurezijavizazew.pdf
    • http://files.imagenationfilm.de/uploads/1/3/1/0/131070590/9976133.pdf
    • http://files.bonniepangart.com/uploads/1/3/2/6/132681464/19c708f.pdf
    • http://piwipupo.petraits.ca/uploads/1/3/1/3/131383708/wuminivulimap-birejopebalut-purajobapeg-tonoja.pdf
    • http://files.spokanefamilyheritagevideos.com/uploads/1/3/0/8/130874254/duzuwijafejaweg-wewozeraluzu-laxupaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/25989086110.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/1986_honda_magna_700_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5403/0231/files/77508499856.pdf
    • https://cdn.shopify.com/s/files/1/0430/5308/8921/files/56945987444.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/filijebo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/gesemezatufoguzokatopite.pdf
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/autonomous_research_blockchain.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/kapeni.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/zador.pdf
    • https://cdn.shopify.com/s/files/1/0441/0431/9128/files/tutukize.pdf
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/2093149028.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_off0000a776.bin
8d9b88371a6586640f0eeeb988ad5f78cdc71cb44b90ab681525f06dff6324ba
pdf-font-stream PDF embedded font (sfnt) at offset 0xA776 4808 bytes
font_01_sfnt_off0000b7b7.bin
b93260842139f996ce18d432f4bf762aaf76168b539890522fa5ab38ea0fe72f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B7 10704 bytes
font_02_sfnt_off0000dc41.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC41 4324 bytes