Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e7aa1f27837bd6…

MALICIOUS

PDF

105.7 KB Created: 2021-06-11 08:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: e44a4fddac43ce8bc2ea5f0b1f2bba57 SHA-1: 44844cd37644e4577c1495ab75c546fe6c43007a SHA-256: d1e7aa1f27837bd6550d76b5ef9192118c5c7bec1411810c69965f4720b3a04a
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a link farm with numerous external URLs, one of which, 'https://xezojetit.ru/123?utm_term=bowmasters+mod+apk+unlocked+all+vip', appears to be the primary lure. The document body, though heavily obfuscated, suggests a lure related to modified applications, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://xezojetit.ru/123?utm_term=bowmasters+mod+apk+unlocked+all+vip PDF link annotation
    • https://pagununida.weebly.com/uploads/1/3/4/8/134861868/8172449.pdfIn PDF document text
    • https://nirotagikul.weebly.com/uploads/1/3/5/9/135992947/kupovowuxa.pdfIn PDF document text
    • https://rilodogalaru.weebly.com/uploads/1/3/4/3/134398508/7570806.pdfIn PDF document text
    • https://zepekofudi.weebly.com/uploads/1/3/1/4/131407423/fasamivofirasixejak.pdfIn PDF document text
    • https://gesogakit.weebly.com/uploads/1/3/4/5/134581759/wupubige.pdfIn PDF document text
    • https://sibikobibe.weebly.com/uploads/1/3/4/0/134040949/2292780.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://kufavuva.pbworks.com/w/file/fetch/144426465/duxupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a5c300c-9dbe-47aa-81f1-4c0b9b2615ce/94926594199.pdfIn PDF document text
    • http://rukuvekuke.pbworks.com/f/ap_biology_genetics_review_worksheet_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76bc60ae-3560-45bf-bb53-14a8520f96ad/how_to_use_novation_launchkey_mini_with_ableton.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c61178ec-1699-4e0f-886f-dfd7529b07a8/bumoraxiketezala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8435622e-2da1-4418-999b-987d243a494c/benenamu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56d5738d-d62a-40cc-a399-934475a6a9ff/38500610933.pdfIn PDF document text
    • http://zibupiken.pbworks.com/f/kabujifinexoli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5de0b600-ed57-4220-a0a9-53bf04a35d74/building_construction_illustrated.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/517f8cc8-02a1-4653-ba83-0a226aa95cdb/r_sreevani_mental_health_nursing_book_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e70ac62f-7734-4886-a830-a85723899619/plantilla_libro_diario.pdfIn PDF document text
    • http://tokemomonu.pbworks.com/f/trevor_noah_biography_born_a_crime.pdfIn PDF document text
    • http://firupoxig.pbworks.com/f/98066882677.pdfIn PDF document text
    • http://gafuxexosaru.pbworks.com/w/file/fetch/144549849/zibikiregivukuforetur.pdfIn PDF document text
    • http://sepaxebi.pbworks.com/w/file/fetch/145069500/tubidy_mobile_music_mp3_audio_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/647443ee-4473-4842-94c8-8d42d7980082/lyft_driver_sign_in_dashboard.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_off0000fc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4B 5368 bytes
SHA-256: dab0bdd22bc9094a022e06cbb1dc5b5678af2e68fdba2ac8312c393e9506067e
font_01_sfnt_off00010e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E81 44712 bytes
SHA-256: 18f6fbd2cc37f724fdf033d2431d8706d283639ebaa0acfc9abd2bb332d1a4dd
font_02_sfnt_off00016421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16421 11640 bytes
SHA-256: 0fdeefcbafedce4d311b4834d7df7eb01c57fb4806b241de79b34b88a970225a
font_03_sfnt_off00018bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18BC2 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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