Malicious PDF — malware analysis report

Static analysis result for SHA-256 c93a1fc418ac6953…

MALICIOUS

PDF

41.6 KB Created: 2020-08-24 22:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0e070586d61477994b319b88bd0524d SHA-1: b352d8021be386ec04328751605d9be5b5df51f1 SHA-256: c93a1fc418ac6953a8ca3c89a97ad81ee3a8e13b10cd3dc7a95f3813be06eee4
152 Risk Score

Malware Insights

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

The PDF contains a link to a redirector service, which is a common technique for distributing malware or leading users to phishing sites. The embedded URL `https://ttraff.cc/pify?keyword=devil+may+cry+4+trainer++pc` suggests a lure related to game trainers, likely intended to trick users into downloading a malicious payload. The presence of numerous other links, many pointing to Shopify domains, indicates a link farm strategy to improve search engine ranking for malicious content.

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=devil+may+cry+4+trainer++pc
    • http://files.planetcandie.com/uploads/1/3/1/3/131383575/06d45b9ab5360f.pdf
    • http://files.scentsiblysimple.com/uploads/1/3/0/8/130813325/teteruwowegizi.pdf
    • http://files.sweetpapercreations.com/uploads/1/3/1/4/131437669/teziwizokulajiporag.pdf
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/carrier_aquasnap_chiller_manual_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/9479/3635/files/bluetooth_macbook_pro.pdf
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/worudosimam.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/pinoxugenevuwidadaba.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/kufusuwazoxovumuliwaxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/batikakerojoba.pdf
    • https://cdn.shopify.com/s/files/1/0428/2197/6220/files/xbox_360_hacks.pdf
    • https://cdn.shopify.com/s/files/1/0430/9444/2137/files/21571589119.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/giburixakawobiwuvolu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/8673753462.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4939/files/54529632090.pdf
    • https://cdn.shopify.com/s/files/1/0436/4677/9552/files/dapulujirimujorokinazoro.pdf
    • https://cdn.shopify.com/s/files/1/0437/5035/9194/files/90205607753.pdf
    • https://cdn.shopify.com/s/files/1/0428/4078/5062/files/54384229525.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_off0000643b.bin
d17c864b962324beb2e745c3caf1ce55864b7e0cd3cdd297882e49164391cdb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x643B 5148 bytes
font_01_sfnt_off000075be.bin
fca9a87b3b3fa31a82306a902e16e7e05362dee63f6da287dad6a1f50cc083ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75BE 10524 bytes

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