Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 614de5021fe1131a…

MALICIOUS

PDF / .VIR

137.4 KB Created: 2024-01-20 05:20:09 Authoring application: pdf-parser First seen: 2024-05-12
MD5: 979f48693002feb8f8d945c08703b1a9 SHA-1: ba42d6e3c1b2f6fbe5fe616cb80474967bd15035 SHA-256: 614de5021fe1131ab32a7b2cdcc50117d5ce316c4c183741ea4e679f8a8410c9
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9759

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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 http://www.propakmyanmar.com/pkm/2020/en/counterbanner.asp?b=187&u=https://physiofit-oppenheim.de/wp-content/uploads/2024/03/jifomitapomosobos.pdf In PDF document text
    • https://printindustry.ru/goto/https://5.imimg.com/data5/SELLER/Doc/2024/3/402273471/VC/CF/NB/216996623/tebobeludubivegukisuseru.pdfIn PDF document text
    • https://ip.ios.semcs.net/LOGOUT?dest=https://assets.website-files.com/65f032bb69ae1ad2982f5be0/65f9d7e3f2e07d108b49bd73_lunawina.pdfIn PDF document text
    • https://www.latestnigeriannews.com/link_channel.php?channel=https://5.imimg.com/data5/SELLER/Doc/2024/3/402258446/SF/BH/CW/216996687/95519742484.pdfIn PDF document text
    • https://teens18xxx.com/xxx.php?link=video-bookmark&skip_sell=true&url=https://uploads-ssl.webflow.com/65dcb2193e4729e71c5cc1bc/65f9e8d3de4969586d07c4c3_juzori.pdfIn PDF document text
    • http://igamepark.biz/email_location_track.php?eid=6507&role=ich&type=edm&to=https://uploads-ssl.webflow.com/65e8867b185efe5951ed9458/65f9dcb94d319787f5d3b991_10781382565.pdfIn PDF document text
    • https://virolenilow.loheb.co.za/74941539712291737972225063?bevukafawagigeduxujigemumabinuvesojipewikijuvivapobanedaremewisaze=kirirofadazatavisakakoxarokutikatuzutiburinogojojojexovolawikezenisisuselojajosotulonaxasenifepajubunovakagitebosisomefevaxivevorezaxuguzelikatutuxirapibigukobupufivodijelivivoxipawukuzumigepobewadiji&utm_term=colour+subtraction+worksheet&zemadidevitakivaragivofowabipedusarul=fapijeruzizapumoduvipojevedumipabasobedesijisipefosomemidojawididolelipipamaxogozajuxipodasavavenimonutodijakutojeletekubexawufejijitoIn PDF document text
    • https://chemicalsourcingguide.com/refer.php?URL=https://assets.website-files.com/65f03c1adf9d6d64858c8deb/65f9d61ddac85d0812b55d12_kezekulasew.pdf&idComp=13In PDF document text
    • https://virolenilow.loheb.co.za/74941539712291737972225063?bevukafawagigeduxujigemumabinuvesojipewikijuvivapobanedaremewisaze=kirirofadazatavisakakoxarokutikatuzutiburinogojojojexovolawikezenisisuselojajosotulonaxasenifepajubunovakagitebosisomefevaxivevorezaxuguzelikatutuxirapibigukobupufivodijeliviPDF link annotation
    • https://virolenilow.loheb.co.za/74941539712291737972225063?bevukafawagigeduxujigemumabinuvesojipewikijuvivapobanedaremewisaze=kirirofadazatavisakakoxarokutikatuzutiburinogojojojexovolawikezenisisuselojajosotulonaxasenifepajubunovakagitebosisomefevaxivevorezaxuguzelikatutuxirapibigukobupufivodijelivivoxipawukuzumigepobewadiji&utm_term=colour+subtraction+worksheet&zemadidevitakivaragivofowabipedusarul=fapijeruzizapumoduvipojevedumipabasobedesijisipefosomemidojawididolelipipamaxogozajuxipodasavavenPDF link annotation
    • https://www.zenaps.com/rclick.php?mid=6533&c_len=2592000&c_ts=1642177935&c_cnt=142523%7C0%7C0%7C1642177935%7C%7Cdl%7C0&ir=88b04260-7557-11ec-90f5-22393a71cc5a&pr=https://uploads-ssl.webflow.com/65f03d2790f2409104e5b6b8/65f9dde9d96a9d779309d404_fekitedawozoteduzejewowaf.pdf+&bId=HLEX_61e1a58f66a260.43353463&cookie=1&c_d=zenaps.comIn PDF document text
    • https://mehrgroup3.blogsky.com/dailylink/?go=https://uploads-ssl.webflow.com/65e86d5ad1b001ab755b998b/65f9d759bee721f9e2608a8c_58954309053.pdf&id=6In 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0001df26.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001df26.bin)
🗂 Part of campaign: shared payload a02f67deb0 41 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001df26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DF26 14904 bytes
SHA-256: 1a72a5cc562e7839fdb2a88d4a44e6bd0441dcd155be8e3b2bcb1ea348795688
font_01_sfnt_off000204e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x204E6 8940 bytes
SHA-256: a02f67deb084b7ce8e02d7004994a9dd7e3132fe24919a42c6f0df6ed367c188