Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc7072c3f1ae3e5…

MALICIOUS

PDF

90.5 KB Created: 2021-03-23 02:53:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 05827eb1feaa3215652178a3eba7ecc9 SHA-1: 19b52bbf5d183ec20b11ea9f4d0d20c721baf709 SHA-256: 1dc7072c3f1ae3e51250a5e3ab874bdf919c2b418e607aa11496411c673fd129
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/wix?keyword=merge+dragons+cheats PDF link annotation
    • http://kemedejovon.getenjoyment.net/aromatic_chemistry_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383582/normal_60401cdcc6239.pdfIn PDF document text
    • http://ig-verifiedsbadge.com/24196729582mbv7h.pdfIn PDF document text
    • http://atlas-copco.su/certified_specialist_of_wine_study_guide540xl.pdfIn PDF document text
    • http://mexicotop3.xyz/47998185333qsmdm.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/vosidep.pdfIn PDF document text
    • http://bio-ita.fun/86978257354v3ksz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_603af357e6aa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447276/normal_5fc819ea17c96.pdfIn PDF document text
    • http://damvglaz2.xyz/trane_humidifier_control_padangbt.pdfIn PDF document text
    • http://salet.store/zipokaforobisufugavr2v.pdfIn PDF document text
    • http://medway24.com/dumajuloragews6f4r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426415/normal_5fe99f45b6358.pdfIn PDF document text
    • http://theplafond.xyz/is_there_a_cheat_for_lifetime_happiness_in_sims_3jsjr6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404975/normal_60386d5ad7fb1.pdfIn PDF document text
    • http://mivegik.mygamesonline.org/airlines_code_list.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/54bce2ad-6815-45df-9c5a-2e4654d9c5e3/44216535866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb301338-fc0f-4efa-8ba7-32a9dd7206b2/beats_by_dre_powerbeats_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/197b4e80-8720-4906-8c61-3b386abff69d/how_to_read_a_cobra_radar_detector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dcf14a4-6ecf-4737-9294-a4f45b67c33a/what_was_the_purpose_of_writing_in_mesopotamia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5663d6c2-c61a-42be-bd62-69dd4481a341/wayne_dalton_garage_door_spring_cost.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114F6 4916 bytes
SHA-256: c57dbb2b3b1bcda0c5469232fa5e43d288c9a701003e7622a5e4475e16e519fd
font_01_sfnt_off0001259e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1259E 11856 bytes
SHA-256: 3eb14d366c8437521fa072ff9e2f25001b296b0a02fce5a6d0ffd202f92ae120
font_02_sfnt_off00014d95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D95 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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