Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0167db38322689…

MALICIOUS

PDF

37.4 KB Created: 2020-08-02 22:10:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9de53d2d6873d6a4dd27579fb6ac91d9 SHA-1: 0827647997c5ee29a8335fbefdd6bf61fcd2b564 SHA-256: 7a0167db38322689ae7558c4af76938bc0afa4613838e640f16f985a526feef6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found by heuristics, suggesting an attempt to lure users to malicious sites.

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.com/pify?keyword=pioneer+super+tuner+3d+mosfet+50wx4
    • http://files.ninjaramen.us/uploads/1/3/1/3/131379012/banejanitenu-ziwiwabadopunu-majevixulol-gelexilevi.pdf
    • http://files.verarey.com/uploads/1/3/2/7/132712315/8684652.pdf
    • http://files.infraredcreations.com/uploads/1/3/2/7/132710797/bejanovomaw.pdf
    • http://files.driversedgrades.com/uploads/1/3/1/4/131454808/difopewaves.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/dodugoxizokojizoxadurupof.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/61300609630.pdf
    • https://cdn.shopify.com/s/files/1/0427/5381/8790/files/42987020106.pdf
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/sufficient_velocity_forums.pdf
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/kiwafaku.pdf
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/zowedugodogap.pdf
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/35369227129.pdf
    • https://cdn.shopify.com/s/files/1/0433/7090/5750/files/ranif.pdf
    • https://cdn.shopify.com/s/files/1/0431/5706/1788/files/53190730006.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdf
    • https://cdn.shopify.com/s/files/1/0434/6960/2978/files/wibeluwabumupi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/nuwadapewikosesigit.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/21466564479.pdf
    • https://cdn.shopify.com/s/files/1/0428/5284/3676/files/42454499789.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_off00005095.bin
423f24030a17770d929bca3989105649a612e3becc94eef1cb53378f0d02cfc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5095 5624 bytes
font_01_sfnt_off000063c7.bin
84d313373c8eeb4f69151ca1d43cd0b472ccf7496114a209cec8c1338c348b63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C7 11428 bytes

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