Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9a6c552c102f3c…

MALICIOUS

PDF

74.9 KB Created: 2021-03-21 12:15:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea039fa9e6a06e0fa19705c595e136c0 SHA-1: 9e507fa46eea4fd3a0ba773d0a8cb189021bfac1 SHA-256: 0e9a6c552c102f3cd21c5677bc57ce8e4055ef0cc7a402c43f40631e356389a8
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious content, likely leveraging a PDF exploit or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 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://pelibifir.ru/wix?keyword=nioh+2+warrior+of+the+west+bow
    • http://kerutugizuxig.mygamesonline.org/american_assassin_movie_age_rating.pdf
    • https://datotumegodipe.weebly.com/uploads/1/3/2/7/132740351/e76426793.pdf
    • https://lejawoxaniw.weebly.com/uploads/1/3/0/7/130738778/8948462.pdf
    • https://tabekemaw.weebly.com/uploads/1/3/0/8/130874329/4991546.pdf
    • http://nebuxopav.mypressonline.com/11902886678.pdf
    • http://zujuzerawijuk.medianewsonline.com/calcular_la_molaridad_de_una_solucion_de_h2so4.pdf
    • https://piziruzebizopu.weebly.com/uploads/1/3/4/3/134350425/48dde8ba6b445.pdf
    • https://xezagepu.weebly.com/uploads/1/3/4/9/134901129/waxagojez_jimiwuvulesat_teneg_xijunefeb.pdf
    • http://betijeduw.getenjoyment.net/7_approaches_to_psychology.pdf
    • https://sejimewopokotas.weebly.com/uploads/1/3/5/3/135350214/baeb9fbdcde3.pdf
    • http://bajesiradevo.getenjoyment.net/malayalam_novels_download.pdf
    • https://tedajurilazunu.weebly.com/uploads/1/3/0/7/130739962/2ee42cb1c4f769.pdf
    • https://gibitomenufe.weebly.com/uploads/1/3/4/0/134041720/778c6a80b9e2306.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zifozujiwi/54537815016.pdf
    • https://s3.amazonaws.com/dagasopones/it_technical_interview_questions_and_answers.pdf
    • https://uploads.strikinglycdn.com/files/ae2450ac-e09e-44f5-9d8e-47b214a16d35/amelia_bedelia_chapter_books_online.pdf
    • https://uploads.strikinglycdn.com/files/238a675a-5ed9-4bf1-9e69-1d9dda559696/mainstays_black_metal_arm_futon_with_6_black_mattress_instructions.pdf
    • http://wipibefab.onlinewebshop.net/i_robot_full_movie_in_hindi_2004.pdf
    • https://s3.amazonaws.com/wizakokowe/comic_book_reader.pdf
    • http://kojuvurapamox.myartsonline.com/hampton_bay_hugger_ceiling_fan_manual.pdf
    • https://uploads.strikinglycdn.com/files/e4f29ce6-30d7-4597-80dd-79d5c341d623/game_of_thrones_cast_season_3_episode_5.pdf
    • http://noratev.myartsonline.com/books_to_read_on_yoga_retreat.pdf
    • http://kuwitabetegipo.myartsonline.com/7489994904.pdf
    • http://sazebufaz.atwebpages.com/autocad_3d_2020_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daf1.bin
a91c69171cfa89de68bef2a3f5a2a40159108609793aed22976c26ebb0edc3e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF1 4836 bytes
font_01_sfnt_off0000eb88.bin
85acc38227a5a023d73248867c4df0df6ff282821580b92151274db80e43330f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB88 10776 bytes
font_02_sfnt_off00011035.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11035 4324 bytes

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