Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5de1457a483bd71…

MALICIOUS

PDF

90.5 KB Created: 2021-03-16 03:08:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6312ec76b2bdd3baa850f88463b37abf SHA-1: 5c03f4a8c66baead0818c5a2b6b60fa99cc4ed78 SHA-256: e5de1457a483bd714a433fe373592cfba4053222cdaa991ac6e2c6e3b66ea4d7
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are part of a link farm designed to direct users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit users by leading them to compromised or malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=doogee+x5+service+manual
    • http://hot-money.fun/vodadalhf9cv.pdf
    • http://216tilford.com/what_does_memento_mori_meaning_mac_miller990lv.pdf
    • https://poxefapujo.weebly.com/uploads/1/3/5/3/135312596/kopetedububisi.pdf
    • https://gakigabop.weebly.com/uploads/1/3/1/4/131406234/dijozamanugawa_wafimufupop_pifezivojanof_ranuli.pdf
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/ecfcc3a97.pdf
    • https://vubupegizisave.weebly.com/uploads/1/3/5/3/135315261/jubufomumeli.pdf
    • http://bestita.space/emptiness_female_version_song_download_free04n2u.pdf
    • https://durafozo.weebly.com/uploads/1/3/0/7/130740533/9414821.pdf
    • http://zhigina.ru/23947915883od6u6.pdf
    • https://vawilateg.weebly.com/uploads/1/3/4/6/134697686/kalasikimojepif_devirebojumijox_jojuna.pdf
    • http://idealicaitalia.website/807247779796myhd.pdf
    • http://gerda-msk.ru/molemifaxexonox4yhoy.pdf
    • http://gravkamen.ru/mufasojojuwan8cjjr.pdf
    • https://lepekogiba.weebly.com/uploads/1/3/1/6/131637498/tovavimakadoriropo.pdf
    • https://lerinaxupol.weebly.com/uploads/1/3/4/6/134662503/6855386.pdf
    • http://amsidisi.xyz/ford_555_backhoe_parts_manualcpyxs.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://298c7861-702e-4dad-8e6b-798164301c36.filesusr.com/ugd/98adb1_12a6366545004414b96ef06302d214f3.pdf?index=true
    • https://204833c8-abda-4421-8777-5048ee7dd919.filesusr.com/ugd/e30b7a_20d7813fff514a0aa6134ee5cf3d567b.pdf?index=true
    • https://s3.amazonaws.com/fonazuzixagizir/bitupikizubejupubuzudalu.pdf
    • https://s3.amazonaws.com/kozibowisenatu/army_love_couple_images.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea1d.bin
e0536a315f31e048e307634106af3fda8fcd90a8c6a134cc187bcb0236a8c632		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1D 8052 bytes
font_01_sfnt_off0001058b.bin
326942823de63828bf4965415f90bd4b5142069ac828b0c989033dd30435a9eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1058B 5372 bytes
font_02_sfnt_off000117cd.bin
fa56e1e51d98619fa869748fc242a703fdcdc3d22f75f54d72ec85b2089d62e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117CD 15004 bytes
font_03_sfnt_off00014487.bin
fe1ca6a691315ef32827512bb86cd3188d7c30cfa02bd4559714794831c9b14a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14487 16684 bytes

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