Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddc6c82b46c0910…

MALICIOUS

PDF

94.5 KB Created: 2021-04-18 15:17:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 7b6f658a847cd6d61ab8bc5c15185b5a SHA-1: 21d501cec05d27748859e4c27bdf3b0dedea9a1f SHA-256: 2ddc6c82b46c0910ca8db396a1afdbe521cd5c1fea031c5b44c110358ec1458c
156 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, a common tactic for phishing or SEO spam. The primary malicious URL, https://jottigo.ru/strik?utm_term=why+is+my+lg+washer+saying+ue, suggests a lure related to a technical support query, aiming to trick users into visiting a potentially harmful site. The presence of a PDF link farm heuristic further indicates a malicious intent to distribute or redirect traffic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jottigo.ru/strik?utm_term=why+is+my+lg+washer+saying+ue PDF link annotation
    • http://mamafiposorugul.sportsontheweb.net/nudutoraderu.pdfIn PDF document text
    • http://metinozub.iblogger.org/bawiz.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/lithic_technology.pdfIn PDF document text
    • https://jipunone.weebly.com/uploads/1/3/5/3/135349916/xibotigukeji.pdfIn PDF document text
    • http://servicesforsupport.com/download_how_the_grinch_stole_christmas_20184qyqf.pdfIn PDF document text
    • http://help-business-media.com/one_piece_stampede_blu_ray_japan0trti.pdfIn PDF document text
    • https://vamewifajezik.weebly.com/uploads/1/3/5/2/135297159/5458495.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/67214217663.pdfIn PDF document text
    • https://rajilogibakew.weebly.com/uploads/1/3/5/3/135326989/fokazo-vijexobapaji.pdfIn PDF document text
    • http://kotexob.iblogger.org/galifimodapo.pdfIn PDF document text
    • http://mojoliziriba.22web.org/les_autodafeurs_2_gratuit.pdfIn PDF document text
    • http://nadahul.ru/16313526659mpnao.pdfIn PDF document text
    • https://sebupemisopuba.weebly.com/uploads/1/3/4/7/134706320/0b99433e1d3.pdfIn PDF document text
    • http://bowenaf.22web.org/gatadegazisu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jixerubowi/64015949983.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/54808109932.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/bewofunin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae3fcbc-e2e0-4b56-8204-26c52c53ad84/vivuvurexemux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b12963b-2d89-4ebf-8865-a7b7e72c86b1/3031801576.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/mopukoziduw.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/ccna_version_6_espaol.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11574 5000 bytes
SHA-256: 47d3d8749ee7b4be5772377cb47ab819d5317d99c5fdecd8af1a120849a1e0fc
font_01_sfnt_off00012640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12640 6068 bytes
SHA-256: 7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a
font_02_sfnt_off000135f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135F1 11948 bytes
SHA-256: 9ab718749e262f0d59fd3936baaee5a6e07cde985701a35ffc5ee04366ce48d5
font_03_sfnt_off00015e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E60 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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