Malicious PDF — malware analysis report

Static analysis result for SHA-256 0644cd674f2efee0…

MALICIOUS

PDF

50.1 KB Created: 2020-08-23 18:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b27ebce430c873e1f19b115eae00bfa SHA-1: 0a7a09da91ba05896e2f54f9076bc7c3c7ea2261 SHA-256: 0644cd674f2efee0f2abcfbe5987a363087d140e4a393ce463159d25f7327f29
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host further malicious content or phishing pages. The document body also contains numerous links to PDF files hosted on Shopify and other domains, suggesting a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The ML classifier also strongly indicated maliciousness.

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=rpg+maker+2000+android+apk
    • http://files.scrappingfairy.net/uploads/1/3/0/7/130738914/kanotuxadinivuvas.pdf
    • http://files.christiefencing.co.uk/uploads/1/3/0/7/130775441/vexexixeve_wexeruvodusek.pdf
    • http://bytlly.com/18src3
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/biological_diversity_definition.pdf
    • https://cdn.shopify.com/s/files/1/0440/8439/6184/files/adrenalina_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0431/9612/1248/files/infinitive_of_purpose_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/bivixowajudove.pdf
    • https://cdn.shopify.com/s/files/1/0431/8674/9600/files/nursing_article_critique_example.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/vertical_axis_wind_turbine_design.pdf
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/xikinefemisuguto.pdf
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/3236556267.pdf
    • https://cdn.shopify.com/s/files/1/0440/6588/2277/files/dumbbell_workout_routine_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/berudadizejejon.pdf
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/52968105728.pdf
    • https://cdn.shopify.com/s/files/1/0462/6812/1237/files/25744824419.pdf
    • https://cdn.shopify.com/s/files/1/0428/8898/6783/files/sotoma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vixegenosevisime.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c60.bin
0472f170e6066af02d33747607f3742826c4106455cde3c9031964d852293f25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C60 4412 bytes
font_01_sfnt_off00006bce.bin
ad330f4cd97198ef5ed4c2138e8313bc13b84f6060c339a7e7d3b9f97b0ddb27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 5412 bytes
font_02_sfnt_off00007e23.bin
e68ead3f349263440ed8187db87f285f7bb73817c282ad4d075cef3b180b633d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E23 12600 bytes
font_03_sfnt_off0000a52c.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA52C 16204 bytes

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