Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00c1169734c6d1d…

MALICIOUS

PDF

61.0 KB Created: 2020-08-18 13:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc46af2eeae49b1cf5b75a6c03454b84 SHA-1: 4f7bd3d5890456d5b53b936117430b2925fdad2c SHA-256: e00c1169734c6d1d1cab1473b2f18169a09ee40233aca0a36f2ae662cf16f6b6
152 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links to external PDFs hosted on Shopify, suggesting a link farm or SEO manipulation tactic. One of the embedded links, 'https://ttraff.com/pify?keyword=yamato+wows+guide', is flagged as a known malicious redirector. The ML classifier strongly indicated maliciousness, and the presence of these links points towards a campaign distributing malicious content or attempting to drive traffic 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=yamato+wows+guide
    • http://fofemodo.hummingbirdmosaics.com/uploads/1/3/1/8/131856333/7969579.pdf
    • https://cdn.shopify.com/s/files/1/0429/6205/9427/files/nonijovafuzisememu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/gixapukiviboporokigewiza.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/8815069480.pdf
    • https://cdn.shopify.com/s/files/1/0445/5694/3524/files/68941983974.pdf
    • https://cdn.shopify.com/s/files/1/0440/4301/0198/files/74211299220.pdf
    • https://cdn.shopify.com/s/files/1/0428/5884/0223/files/17941141479.pdf
    • https://cdn.shopify.com/s/files/1/0435/2511/1967/files/17366597222.pdf
    • https://cdn.shopify.com/s/files/1/0435/7790/1219/files/pirudelaruv.pdf
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/73334278238.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/30573246845.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/6457398418.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewugokujugiwiburonanas.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c18.bin
dfff122eb24ff3730cd4a415f350b5ba1da28233b07afa17d97b4360c3254ab7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C18 4500 bytes
font_01_sfnt_off00009c29.bin
c3d55838c51f8c76aec8bf729a4b0396e9a5ac1e2e00a0a45db326a51e022b86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C29 5072 bytes
font_02_sfnt_off0000ad6c.bin
f7290b0b4200f892c1d7c5bdc8177301d11c6c9f9c27df6c087b1e008122b440		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD6C 10608 bytes
font_03_sfnt_off0000d19a.bin
2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD19A 16092 bytes

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