Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e17cd1d02a5166…

MALICIOUS

PDF

123.8 KB Created: 2020-10-22 04:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 72d59f44ac416607f308cfed4b86b854 SHA-1: 0cf8b3ac6337f5d2841a12b0ba9c8573599ddfd5 SHA-256: d7e17cd1d02a51660d2c91d40247452bdba850be755056b22dbd0bbf106d39d0
184 Risk Score

Malware Insights

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

The PDF contains a large number of links to external websites, many of which are hosted on disposable domains, indicating a link farm designed to distribute malicious content. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/123?keyword=guild+wars+2+newbie+guide+2020', suggesting a lure to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?keyword=guild+wars+2+newbie+guide+2020 In PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/2c4c19.pdfIn PDF document text
    • https://gewosawoma.weebly.com/uploads/1/3/0/7/130739201/lebedebelanewizifote.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/7348504.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/xumilokor-bivusot-vedewe-tokej.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/tenofu-puzew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366357/normal_5f8a7c9f69dba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8a211b3c4e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f892ead22c9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368478/normal_5f87e3f221343.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_5f87cca0466e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392860/normal_5f9038b073d3a.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/kudibaripesevomiki.pdfIn PDF document text
    • https://lavabowigu.weebly.com/uploads/1/3/2/6/132682694/fb88eb0049d3a5.pdfIn PDF document text
    • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/pititaviwe-bivakegaw.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/jefefowelo_nazepasisedina_refuzixipuzijok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_5f8b2d6cd6ef2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386333/normal_5f8d15a44abb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380392/normal_5f8b47a772870.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f86f9f779e23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366385/normal_5f88f9ea42440.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368762/normal_5f9064664004a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001732c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1732C 6180 bytes
SHA-256: 3b49017f5bd29c3c8bb5dc21088501e453c7fac9db7b721f091c3c2db163f45e
font_01_sfnt_off00018841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18841 5532 bytes
SHA-256: 317639302153723e103071b5c87b48c8e679f667853c9cd96dab36e4ea36a2a2
font_02_sfnt_off00019b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19B25 2212 bytes
SHA-256: 8d2d96ef542ae511a87d87c4b0891afdb9739da6fab97a830ee124dda6e49651
font_03_sfnt_off0001a4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A4BC 11212 bytes
SHA-256: 3f68a947f785a5e483f2fa7ec47bdd3edb0506efe1a23a45e6fbccb97a0e2fa3
font_04_sfnt_off0001ca96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CA96 16204 bytes
SHA-256: eeebb621ebbcd2b5e843146d60912ed43aa8dc13a6b8445ddf7fdeac26efd014

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