Malicious PDF — malware analysis report

Static analysis result for SHA-256 1172e33b2a6257e6…

MALICIOUS

PDF

74.5 KB Created: 2020-11-21 04:43:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: f49313d5bd2b26c3cd0e6e929790f020 SHA-1: 541387737a6b2cab65c6a9c05051da09259eeb8a SHA-256: 1172e33b2a6257e680716dffd1039b321212d2684ad41474939c7d083fd64d73
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and contains a large number of external links, indicating a link farm or phishing attempt. The primary URL, https://traffnew.ru/123?utm_term=i+am+not+your+perfect+mexican+daughter+quotes+pdf, is likely the initial lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffnew.ru/123?utm_term=i+am+not+your+perfect+mexican+daughter+quotes+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366652/normal_5f8e3a7e09a1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383137/normal_5f9f5ca18fd60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f893aafb66c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384301/normal_5f9c72485b192.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5fb415c5d997c.pdfIn PDF document text
    • https://gagijilit.weebly.com/uploads/1/3/4/8/134865103/c396556f1c4378e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368747/normal_5f9526b6385b2.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/zofivapirum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5f9d20995b601.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411493/normal_5f9ab042aacd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393893/normal_5f943c8ea0048.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/bsa_medical_form_2018.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD687 5652 bytes
SHA-256: d741ba88e7697eae1b0cfe4ae2da4c679fc9ce1ab162b7a0a0828fd8e2a6123d
font_01_sfnt_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 10708 bytes
SHA-256: 621aadd35a72bef1a262d0e534a1a8c4beddcc54905743219ea94960ba39d529
font_02_sfnt_off00010d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D6A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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