Malicious PDF — malware analysis report

Static analysis result for SHA-256 01254abd0e325e6d…

MALICIOUS

PDF

39.5 KB Created: 2020-08-20 00:18:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8096fdddedbadbb80f21378040a848c SHA-1: 57b2b3216f99c266f23de31ec87021d217c09e68 SHA-256: 01254abd0e325e6d78f71e88a66eed49c09e122e2d91a34d056f8161ae811f75
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though partially obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

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.ru/pify?keyword=astral+realm+game
    • http://files.kaitiakirestoration.co.nz/uploads/1/3/1/1/131163955/buluzejugaf-ralap.pdf
    • http://files.turquoisetraillavenderfarm.com/uploads/1/3/1/6/131636872/872906cd42f2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7036/5589/files/tech_mahindra_technical_interview_questions_and_answers_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/15446222953.pdf
    • https://cdn.shopify.com/s/files/1/0430/6527/8625/files/bl_ap_cp_home_csc_s6.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golizikedakumeru.pdf
    • https://cdn.shopify.com/s/files/1/0437/3004/3041/files/dreadlock_holiday_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/vuxogokil.pdf
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/gomuwefalerufagup.pdf
    • https://cdn.shopify.com/s/files/1/0434/5551/2738/files/vijenipelixozadisuxojuki.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6115/files/jefomamanamisiligejux.pdf
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/diagnostico_prenatal_de_cardiopatias_congenitas.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/bathroom_design_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/11285568280.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/behaviorismo_psicologia_comportamental.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/wavufu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fd1.bin
f524bdb4078c5a4d4267ac4b52dd04bb3fbca3c3c72f67807020d76fb44722ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD1 3724 bytes
font_01_sfnt_off00005ce5.bin
a254bc17650d3e89df7d8c384fae23f3d393698fb9fa926d785a52fe9b7cf21a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE5 4996 bytes
font_02_sfnt_off00006dc5.bin
39b65ace15801bf9fe466c0d29a97e3644b762e128ccc5ee09c088c855d92d6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC5 10372 bytes

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