Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68a5f4ad21b98ea…

MALICIOUS

PDF

71.2 KB Created: 2021-03-14 07:50:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: a92c55c3099dfbc1dcfccdc4b5ea46ef SHA-1: ed4a404e8fe65a8ee1e7026b6a1f7acfb87e6da9 SHA-256: d68a5f4ad21b98ea5f05f53594dbaa3cbd6f849ae216f7fac06198f8cc49f16a
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm designed to redirect users to potentially harmful content. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic further support this assessment, indicating the document's primary purpose is to facilitate access to external malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://zajinet.ru/123?utm_term=awadhesh+premi+new+song+2018++bhojpuri PDF link annotation
    • https://ginugifugebiner.weebly.com/uploads/1/3/4/2/134234672/7674031.pdfIn PDF document text
    • https://wiwazojuxosupud.weebly.com/uploads/1/3/1/3/131379189/najapeto_wulesewofeja_lerujarolix.pdfIn PDF document text
    • https://womomoko.weebly.com/uploads/1/3/4/8/134848640/nejaxuxi.pdfIn PDF document text
    • https://valofapapedor.weebly.com/uploads/1/3/1/1/131164243/5640094.pdfIn PDF document text
    • https://wozomeki.weebly.com/uploads/1/3/0/7/130776066/padamekumodirakopaw.pdfIn PDF document text
    • https://cdn.sqhk.co/buzaxelubot/dMBc9nh/13860355934.pdfIn PDF document text
    • https://nibafokabatawal.weebly.com/uploads/1/3/0/9/130970001/zofemubolofop_wemokadaniselu.pdfIn PDF document text
    • https://cdn.sqhk.co/givifevulo/dieo3kb/grimvalor_switch_gameplay.pdfIn PDF document text
    • https://telidububiz.weebly.com/uploads/1/3/1/4/131452987/cb6e0aa0c07374.pdfIn PDF document text
    • https://sifavebizibi.weebly.com/uploads/1/3/4/0/134040704/c59556c7be147.pdfIn PDF document text
    • https://gosawopidelogeb.weebly.com/uploads/1/3/4/7/134714887/d143d237681997f.pdfIn PDF document text
    • https://tujobofawoti.weebly.com/uploads/1/3/2/6/132695409/gurameboxalika-penuwakogufe-tejusomok.pdfIn PDF document text
    • https://xagatozemeladab.weebly.com/uploads/1/3/1/4/131406701/e79e44.pdfIn PDF document text
    • https://subegawi.weebly.com/uploads/1/3/5/3/135394411/2196118.pdfIn PDF document text
    • https://fadefewili.weebly.com/uploads/1/3/4/3/134316521/fuvifig-lijosixivukit-sunazetixipi-nomafimeg.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/fygWhfS/scenario_song_kpop.pdfIn PDF document text
    • https://lovelutunaguj.weebly.com/uploads/1/3/4/7/134735325/4380672.pdfIn PDF document text
    • https://nepuvojikonutoz.weebly.com/uploads/1/3/4/6/134677469/wopazelil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/jazoxevaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/how_to_make_a_motion_light_stay_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ff90962-8078-463a-a4af-297344f27160/nervous_system_concept_map_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e19fd70d-87b6-4af2-a5f0-34af496a6af9/math_worksheet_for_grade_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b27e09a9-c9d4-4a47-8538-458838c50829/what_are_the_examples_of_classification.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/audited_balance_sheet_of_infosys_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/833c6ebd-b7be-4fb0-b3cf-89805c85104f/32397542880.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/clinical_psychology_journal_articles.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/diranumujaxuvip.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD811 6156 bytes
SHA-256: 2f2dcb6e97d278aef076298dc1e05ffaa25b399872190b14394ecc23c3fa151d
font_01_sfnt_off0000ecf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF1 9892 bytes
SHA-256: b8d6bfc270b79a16bf9f854178193796bda0079d76edc74ac9ded561211b71c4

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