Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1beb1215b151c1f…

MALICIOUS

PDF

44.4 KB Created: 2020-10-16 05:09:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 5f7708f26b682c8b49613332367cf114 SHA-1: a780e2b5222a1e843c2275983d4a831ded7c3b23 SHA-256: e1beb1215b151c1f29c8dd468c1f37897e6a8375a4d64baed7ec3ae02ce81e83
174 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is disguised as a fishing guide. This suggests a phishing or scam attempt, likely to lead the user to a malicious website or download further malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ggtraff.ru/123?keyword=maui+shore+fishing+guides In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f87ab5ba4561.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368486/normal_5f8815af7d9b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367290/normal_5f87e7b947c8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373788/normal_5f88cd69128ac.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/ec5b801.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/ronulesilisa_lewesusadagode.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/785a8392-b979-4e5b-8983-0d6d999cb1c9/23489104555.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/269a7836-813f-42cd-a759-7fc98d153c93/1277920159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3577db73-6c57-44b6-b769-2b53dfdfeb77/4823932617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f5925e6-2ae2-403c-bec1-7e473eab604b/27914372285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0d2eccd-595e-4596-9de2-ba935e75f84f/zirevosasitisudepuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca1aba4d-ea54-4c08-b648-239252c42a14/juxegumifulafafixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5a79e6d-0623-4b49-8c14-021e619611e6/dixewomivenegida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/294977a3-762a-467e-bad1-4a6a2595db34/tituwejese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf6ef03b-0b3b-4087-a710-934ef371492c/vamogelakapozu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a895dd-dff5-494c-9f22-6ef2c0d92082/76597081375.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f5b4d25-543c-439b-a680-431565a243b7/75677598130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1377/7826/files/clash_of_magic_s3_apk_download_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6439/3365/files/sony_action_cam_4k_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/8786/2429/files/rapelubilexalelowadixubus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8982/6460/files/sarawigodafiwalevul.pdfIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F50 5140 bytes
SHA-256: 0e76f4a2ac3df3664235b8a65eb707d4044a36b9941c681e2b0a19e18a49b25b
font_01_sfnt_off000080ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80CE 10668 bytes
SHA-256: d630b843ebb9de6548c85234a42d9a97c4e6626eac9430397d979ca6071326cd

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