Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2bb38e1f6ec00f…

MALICIOUS

PDF

33.8 KB Created: 2020-09-17 17:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54a7a298c950db73040d0f554375ab0a SHA-1: b7a4f13de37f67d28d1f0465bdf87694ab884330 SHA-256: 0f2bb38e1f6ec00ff7a030788a47a8e6d43f7f051dc230cd764f9587fcfc1749
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links disguised as search results for game cheats, directing users to malicious redirector infrastructure. The embedded URL 'https://ttraff.club/wix?keyword=slither.io+mod+apk+invisible+skin' is a primary indicator of this malicious intent. The PDF also exhibits characteristics of a link farm, with a large number of outbound links, many of which point to other PDFs hosted on suspicious domains.

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.club/wix?keyword=slither.io+mod+apk+invisible+skin
    • http://soluvid.cohmn.com/uploads/1/3/0/8/130874019/gagitaf.pdf
    • http://julonek.kensingtonparksavannah.com/uploads/1/3/1/4/131482851/ledikazawune.pdf
    • http://roxis.maryparmer.com/uploads/1/3/1/4/131407511/3940892.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/42876629858.pdf
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/genero_narrativo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/88299721206.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/4991024463.pdf
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/antecedentes_de_la_drogadiccion_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0435/6207/4261/files/math_problems_with_answers_grade_9.pdf
    • https://cdn.shopify.com/s/files/1/0437/0805/5720/files/romonasutanusidotaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/3393/5515/files/bupije.pdf
    • https://cdn.shopify.com/s/files/1/0430/6062/5562/files/best_live_sports_apk_firestick.pdf
    • https://15dd3fac-bf4d-4cc2-86cb-d577d5907767.filesusr.com/ugd/8a4248_4d6d45e57f2747e6ad647fa3f7e104a1.pdf?index=true
    • https://b1d2284e-d8d5-4622-8615-328d9f5713a0.filesusr.com/ugd/21a131_2d3ce23e474740c7ad6d5c811ca684b7.pdf?index=true
    • https://8fed362f-beae-4d06-b3c9-7452ae17ffc6.filesusr.com/ugd/5ed537_5193c05e10fa44779cc58e611eb4db31.pdf?index=true
    • https://6cb89870-42fe-4e47-a074-32f9e2c6231f.filesusr.com/ugd/9ff9b8_d14ed49edee14fe695b20f3c3cb2543a.pdf?index=true
    • https://b0f4ab88-b7e0-4a46-9d82-b907c6903d18.filesusr.com/ugd/31593d_7fd9e5d4d27747178f68a30f0fde1d8c.pdf?index=true
    • 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_off0000479f.bin
7417c56400b31f1a0b20f0dc2aa7c7d0ba1b3c06fe6f55952b402d971b703f2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x479F 5600 bytes
font_01_sfnt_off00005a6f.bin
e76107825fcc12b8b3cf8cce97dad66b8f30a6324e02fcaee72292e5b104b0fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6F 9316 bytes

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