Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ff19ade4de25197…

MALICIOUS

PDF

80.9 KB Created: 2021-03-21 11:47:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a4dba546beb43763311ac1b83c0902a SHA-1: efd9c78a2891b705c25140ffbe8c01e6006527c0 SHA-256: 6ff19ade4de25197d1e81a8933dbcc68e58c118be7a6dc80a6a80d32d2aa8179
126 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a potential phishing lure related to a 'design document for library management system'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://vilenefex.ru/award?keyword=design+document+for+library+management+system+pdf
    • https://cdn.sqhk.co/lajawawinu/D5tjfhf/19414706607.pdf
    • https://cdn.sqhk.co/zasokolof/gOijicU/anime_piano_anime_piano_tiles.pdf
    • http://ropisunofo.mygamesonline.org/convert_to_word_adobe_x.pdf
    • http://nekuwagibajese.getenjoyment.net/little_book_of_common_sense_investing_amazon.pdf
    • https://cdn.sqhk.co/luzeginu/xgc49ib/classic_rock_us_radio_stations.pdf
    • http://fovekodabogad.iblogger.org/remove_watermark_from_mac_preview.pdf
    • https://cdn.sqhk.co/motuwezelu/zjWjgI3/motovlog_brasil_hack_apk_download.pdf
    • https://cdn.sqhk.co/masezupusi/ijhjzVs/bang_olufsen_penta_service_manual.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://5e652c44-c8a2-4170-8b63-1f74ea172bc2.filesusr.com/ugd/78c764_f2c0b0bf4f384620b9c8d998f0c71d61.pdf?index=true
    • https://uploads.strikinglycdn.com/files/42b74b9f-a209-4402-a6a4-8cdbd94bf6ec/50049084245.pdf
    • http://nazowovemozugiv.myartsonline.com/xorogisi.pdf
    • https://uploads.strikinglycdn.com/files/cfd5753e-7c8c-4a58-9876-b3fbd43990af/roland_tr_808_vst_free_download.pdf
    • http://wamigorudazuz.epizy.com/top_nba_draft_prospects_bleacher_report.pdf
    • https://3f740848-0e57-4b51-8596-564812021bec.filesusr.com/ugd/cbe17c_ae2ec3e8da594b0b8eb9568b93364732.pdf?index=true
    • http://muzafevabuma.rf.gd/guzeluboxonitemaxu.pdf
    • https://s3.amazonaws.com/dukajevo/guwabidakadami.pdf
    • http://jatugeset.atwebpages.com/82925312058.pdf
    • http://suxanovovogemi.rf.gd/83069123542.pdf
    • https://uploads.strikinglycdn.com/files/6f995b39-14d4-44b7-b2b8-7de28e37e34f/wabanamogikelasizafaw.pdf
    • https://s3.amazonaws.com/limepusotanal/wowhead_herbalism_guide_classic.pdf
    • https://e942959e-95af-4115-ab05-a6e38533eaad.filesusr.com/ugd/66f7a0_ed52757c276444d49bf9e0053cb124c8.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e898deae-0598-4ae8-9268-5b2bbfeda207/ferrari_488_for_sale_by_owner.pdf
    • https://569961a5-e6b5-462d-8b38-7193d5e7b20b.filesusr.com/ugd/a37a2e_656c3dd20764427cbce95df4b8ab46f3.pdf?index=true
    • https://89f68ddc-9f98-4e60-8afa-3e0ca6603e9e.filesusr.com/ugd/4725f1_adf4ed86897446c1a7c2a64434fb6bad.pdf?index=true
    • https://uploads.strikinglycdn.com/files/4eb5120e-176c-4e46-b5bb-03077b603ba2/jetifurokedinalogibir.pdf
    • https://s3.amazonaws.com/zidenigad/endoproteza_stawu_kolanowego_rehabilitacja.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010031.bin
dc55aaea29f759195adf0090667f2e46cfa20921f404364fc1190ba4d757c56b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10031 5716 bytes
font_01_sfnt_off0001139a.bin
971e42096552f8c92d8ea0d7f2bc0db7e5b4906b239bfba0e98f888031ed90bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1139A 9932 bytes

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