Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fba8d4e5a00acb…

MALICIOUS

PDF

34.1 KB Created: 2020-08-05 02:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3add517d4c6ffbf2149813fe424d614 SHA-1: ae39f573320e335f1641bc4a7f5da4dea1a0e490 SHA-256: 60fba8d4e5a00acb91322711f0b366b6bd9a68c4cb5b3fbca02cdaa2176f076a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body itself is heavily obfuscated but contains the primary redirector URL. The presence of numerous links suggests an attempt to distribute malicious content or phishing pages through a link farm, masquerading as legitimate documents.

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.ru/pify?keyword=ecological+succession+activity+pdf
    • http://files.mhcgb.co.uk/uploads/1/3/1/3/131380558/4ffc91ba55900.pdf
    • http://files.livingbyroad.com/uploads/1/3/0/8/130813055/10c0a596.pdf
    • http://files.slateconstellations.com/uploads/1/3/0/7/130739081/f4bc19717c807e5.pdf
    • http://files.harvestrisebreadcompany.com/uploads/1/3/1/0/131070089/5707705.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/4632/8737/files/mathematics_worksheet_grade_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/8941/2764/files/pitotavosi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/alimentacion_consciente_pdf_suzanne_powell.pdf
    • https://cdn.shopify.com/s/files/1/0437/2814/2501/files/62899246788.pdf
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/fobigefokulikopowebefeku.pdf
    • https://cdn.shopify.com/s/files/1/0433/0471/4404/files/votevamaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/67513010126.pdf
    • https://cdn.shopify.com/s/files/1/0434/5511/9520/files/81406979085.pdf
    • https://cdn.shopify.com/s/files/1/0428/8842/9724/files/efftronics_interview_questions_for_ece.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dijupabexapuvasazanuripik.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/2018_subaru_outback_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/10226949679.pdf
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/18262526236.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.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_off00004930.bin
5dc6c5e7adbb313f8235aa093d5a0245fa36f49da8fd5f076a6a290ae2aa8fa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4930 5348 bytes
font_01_sfnt_off00005b8d.bin
5d020536de906c828fe84b59940eb5ae2b8a4187eb96bf6c705378d59a3182b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8D 9356 bytes

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