Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e15ac4ce7677b0d…

MALICIOUS

PDF

83.0 KB Created: 2021-03-25 23:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5456d991742522d45584bf304c9a784e SHA-1: 2e5ad1cbb571e2ef88df1a97496a07aa61a7ca7f SHA-256: 3e15ac4ce7677b0d03aad5f26997016aa74487faac2a1711a344f6f99d1b6d0a
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Weebly domains, which is indicative of a link farm or phishing campaign. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/strik?utm_term=does+candlestick+charting+work PDF link annotation
    • https://pawiwojofidinof.weebly.com/uploads/1/3/4/4/134458390/kevotovitabe-bipobitopa-suvegar-merabifobiwirib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376101/normal_601d15dad2848.pdfIn PDF document text
    • https://vogovolakufa.weebly.com/uploads/1/3/4/8/134874318/2ba8fc2a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425515/normal_5ff354fdc339f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486054/normal_602fbe4cf2dc0.pdfIn PDF document text
    • https://nufewaxitobazat.weebly.com/uploads/1/3/4/7/134748461/8216275.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/zomixubiweb_gepejawinuwiso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372076/normal_5febc39fba544.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381321/normal_603c4f58196f9.pdfIn PDF document text
    • https://jukonejidar.weebly.com/uploads/1/3/4/8/134876273/7a6bc963e19.pdfIn PDF document text
    • https://narodejezagog.weebly.com/uploads/1/3/3/9/133988416/funutonidoboxufogi.pdfIn PDF document text
    • https://lomekizawulom.weebly.com/uploads/1/3/4/7/134704223/eeb8d4d1ac6.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://uploads.strikinglycdn.com/files/39b9e05f-134e-4f3b-9753-5226ce94107f/vitatewoziponam.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/4730238977.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/greenworks_pressure_washer_1600_wont_turn_on.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/2013_acc_aha_cholesterol_guidelines_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/49279661965.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/geethanjali_new_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/airtel_live_tv_app_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d8ea245-6368-4dc8-be22-7e57609aeb0b/my_dyson_cordless_brush_not_spinning.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE3 3456 bytes
SHA-256: 286041d47b2c5b3ad8ff09d15216ae09bec41dec94ac05daea14f9ddaf276598
font_01_sfnt_off0000f842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF842 5144 bytes
SHA-256: c68130b5f3dd78e69a6e20a7cb4b230cba6ad37c5db8f750c5b95d6ce2508370
font_02_sfnt_off000109c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109C1 11300 bytes
SHA-256: f8cb7db16b02b9e64e3564bc51bcc8ed4443b8a3bfb37bdb66c0be9c818c6753
font_03_sfnt_off0001300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1300A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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