Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9d2d0a5d44463f…

MALICIOUS

PDF

82.5 KB Created: 2021-03-21 03:36:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 00c4e6ff86425844b78c276ac0383c59 SHA-1: 78db20b3e073bc8658619afd6dda633057cfbe07 SHA-256: 4e9d2d0a5d44463f77c0c9da067a2f49f8421c1e0c571601013d744bb794c86d
126 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The document body, though partially obfuscated, contains a URL that appears to be a lure for watching a movie online. This URL is likely used to redirect the user to a malicious site or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/strik?utm_term=la+la+land+watch+full+movie+online+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387050/normal_604d86407a319.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446395/normal_5fec7e31e5903.pdfIn PDF document text
    • http://gatorama.site/read_after_we_collided_anna_todd_online_freesaa46.pdfIn PDF document text
    • https://vutitikanok.weebly.com/uploads/1/3/4/7/134774074/tenibes.pdfIn PDF document text
    • http://safetymirrors.xyz/how_to_reset_alcatel_one_touch_tablet_when_lockedosegh.pdfIn PDF document text
    • https://wezunemoxojo.weebly.com/uploads/1/3/5/3/135321606/mibeguronebuzexejib.pdfIn PDF document text
    • https://jazexupojofon.weebly.com/uploads/1/3/1/4/131409098/xuvaxa_gupolisam_vivenetamox_samejovubun.pdfIn PDF document text
    • http://hq-cleartv.info/6301974280mzjcv.pdfIn PDF document text
    • https://lanilemu.weebly.com/uploads/1/3/1/3/131381326/fubotikixojebezunisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378620/normal_6009ff555e6ee.pdfIn PDF document text
    • http://ver-alex.website/transport_fever_linienbenutzungdk8jx.pdfIn PDF document text
    • http://tilosag.mypressonline.com/zitebuguvatefotixonudopow.pdfIn PDF document text
    • https://pikoxujedogusu.weebly.com/uploads/1/3/4/6/134665618/mevuzesijusuza-movutemukor-sigufuvazetofe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/282f706f-b97d-40cd-9600-e7180299f30e/zutatajazebewovezolana.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/lawikumuvirimok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48cf08bc-f15a-4019-8b93-156b918aad1c/femipiwebigudokabaninilev.pdfIn PDF document text
    • http://ladurabazidema.onlinewebshop.net/cd4081bcn_datasheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d5afd97-837e-4cf4-99cf-0399c0438aa3/79867088728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/416a5c1c-53dc-4d41-aea6-4cf6f455a563/how_to_make_a_record_storage_cabinet.pdfIn PDF document text
    • http://viwuwijagabote.myartsonline.com/bugera_v22_infinium_schematic.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001053c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1053C 5176 bytes
SHA-256: b590a5223fb0246ad890e00a6cf32d9380f31113f80b6f96e846571f288c9aac
font_01_sfnt_off000116c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C9 11316 bytes
SHA-256: 780da1e1c8cf6a14631570eed7837340689545010725b3ff455e8a24f77b7a29

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