Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b03bbf9177fcbda…

MALICIOUS

PDF

68.7 KB Created: 2021-03-07 21:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f7bd4dab7125617b1f294a80c444be3d SHA-1: 759d50ed3744e76e648f95228b2194a75bc7ddea SHA-256: 0b03bbf9177fcbdaa78f06970e95d9f335aa3a251e3aa2e3611b51c94d7bfac3
156 Risk Score

Malware Insights

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

The PDF file, disguised as a manual, contains a significant number of external links, a common tactic for SEO farms or phishing campaigns. ClamAV detected it as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The presence of numerous external URIs, including one pointing to a potential malware distribution domain, strongly suggests a malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://golowaki.ru/wix?keyword=dish+hopper+sling+manual
    • https://zobimodajozo.weebly.com/uploads/1/3/4/3/134340865/f9fa74e22e4.pdf
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/ketudiw.pdf
    • http://lixixivukagoda.66ghz.com/tofeboguxilatenebelajud.pdf
    • https://sizamefoz.weebly.com/uploads/1/3/2/7/132740636/fusenariwunose.pdf
    • http://xowimixipivup.22web.org/laruvomitajisegaj.pdf
    • http://vabuletarikinil.iblogger.org/59780282432.pdf
    • https://togoxijagujeg.weebly.com/uploads/1/3/0/7/130775712/9976003.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sobezoneroli.epizy.com/xodevili.pdf
    • https://uploads.strikinglycdn.com/files/223ed4f5-174a-4e29-ba0d-fadc7ab843bc/honeywell_th8110u1003_wiring_diagram.pdf
    • https://bd7a0a6f-bbfd-49cc-ba41-c3f2778102d9.filesusr.com/ugd/9ea91e_b8f5a91adc7a439aa9ae76b54dd664a5.pdf?index=true
    • https://s3.amazonaws.com/zusevamasor/critical_reasoning_aptitude_test.pdf
    • https://77701ba7-c5ad-4750-ab17-5b03548f7fc0.filesusr.com/ugd/9a242c_7d217a48bac449a5b8426130c4d6ac4a.pdf?index=true
    • https://s3.amazonaws.com/gebukil/40995721474.pdf
    • https://uploads.strikinglycdn.com/files/51573485-902c-49e6-a0c3-f32463e36951/starbucks_chai_tea_latte_with_coconut_milk_nutrition_facts.pdf
    • https://s3.amazonaws.com/pajeriramal/97747681306.pdf
    • https://uploads.strikinglycdn.com/files/f4ea453f-b3e7-42f4-a595-ebf59d194503/jenogo.pdf
    • https://uploads.strikinglycdn.com/files/6f97bebf-b4f1-43cd-b9ff-48b79f130040/gutafovubagukuzidi.pdf
    • https://b8e64ff8-a522-4625-8e91-70fe47930cb2.filesusr.com/ugd/37987b_bcd81329b90c42448fefdc0f67ba7c54.pdf?index=true
    • https://s3.amazonaws.com/zetubakuz/international_journal_of_research_and_analytical_reviews_ijrar_indexing.pdf
    • https://s3.amazonaws.com/wizuluworafid/apple_tv_remote_for_android.pdf
    • http://gifesikubelazu.epizy.com/86322277882.pdf
    • https://s3.amazonaws.com/jozaponi/bigukoziguzafaj.pdf
    • https://uploads.strikinglycdn.com/files/755013f6-a738-45cd-bf38-df287dc96c68/fexiroriwe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d235.bin
10f7660b9550634d1e7bfc06e9b2ccfc2d342d67e9e4506ae955c7de76bfbf6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD235 5232 bytes
font_01_sfnt_off0000e3da.bin
2add4b9b77f9d48bd53f2af6c7b74c67cdbfe9f91cb0eda8a68d6e023dadb2a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DA 9808 bytes

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