Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01220e2ceab3a93…

MALICIOUS

PDF

51.9 KB Created: 2020-08-05 08:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0fc0de08f467291866750a29fcc10b5a SHA-1: e80304928baefd7e1a37356962895321b49c6720 SHA-256: b01220e2ceab3a938b43e52a43683fcc318f735321c9374c30b9c7424e645337
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The embedded URL 'https://ttraff.com/pify?keyword=inorganic+growth+strategy+pdf' is a clear indicator of malicious intent, likely leading to further compromise. The ML classifier strongly supports the malicious verdict.

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=inorganic+growth+strategy+pdf
    • http://files.sauerkrautkitty.com/uploads/1/3/2/6/132696512/jewemafusuw-lisemunodi-raluwajenolo.pdf
    • http://files.bysophschnei.com/uploads/1/3/0/9/130969489/xofofesetivo.pdf
    • http://files.davidhdenton.com/uploads/1/3/1/3/131378993/wozixewawaneb.pdf
    • http://files.gabrielececconi.com/uploads/1/3/0/7/130738836/nokamexavinadum.pdf
    • http://tagariwar.waughseverydaydollar.com/uploads/1/3/2/7/132740214/1994201.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/76003877536.pdf
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/dissonance_reducing_buying_behavior.pdf
    • https://cdn.shopify.com/s/files/1/0435/4985/1811/files/16498586454.pdf
    • https://cdn.shopify.com/s/files/1/0435/0902/2886/files/wagosuwedikunu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4464/9630/files/viweler.pdf
    • https://cdn.shopify.com/s/files/1/0437/5491/3950/files/massey_ferguson_231_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1372/6631/files/ridolutepu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/vemabevufomodiwixorobopob.pdf
    • https://cdn.shopify.com/s/files/1/0436/2053/2384/files/kuwalezubiwum.pdf
    • https://cdn.shopify.com/s/files/1/0434/2933/1100/files/dejokutinulusezemorab.pdf
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/22517800898.pdf
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/watch_happy_feet.pdf
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/muluxinaguvolovogim.pdf
    • https://cdn.shopify.com/s/files/1/0435/8648/6440/files/56525679038.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/kutozavan.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_off00008cba.bin
d32832dec061e772c28c7e717d4485c5165933585d2639cc72c00ca429192c06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBA 5516 bytes
font_01_sfnt_off00009f92.bin
1443f0988ad68338bbe259d68a44cc38121873737360e9f12a2aee6e2d17ee50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F92 10076 bytes

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