Malicious PDF — malware analysis report

Static analysis result for SHA-256 182ab8e39589ee6b…

MALICIOUS

PDF

76.2 KB Created: 2021-03-09 23:27:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 85470407e083a70fbcff8bb2b93b76b1 SHA-1: 27a2f2b8ac6af272224573b00bd54d69f930a946 SHA-256: 182ab8e39589ee6b405c6d2560a082d874222287091e67e70d726c16ac7524e3
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 0.9998

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://crophysi.ru/123?utm_term=amrit+maan+video+song++difference PDF link annotation
    • http://finuxezanasa.mygamesonline.org/how_to_tell_if_roomba_675_is_charging.pdfIn PDF document text
    • http://nebatomefov.scienceontheweb.net/2661865483.pdfIn PDF document text
    • https://cdn.sqhk.co/gofuzurafano/dgehchi/62429875253.pdfIn PDF document text
    • http://lofoporubatul.mygamesonline.org/honeywell_rth230b_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_60367081b6656.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476936/normal_5fc73c1dea4ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376852/normal_600ebbf9aea51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376086/normal_600bc1621457d.pdfIn PDF document text
    • http://rasudilikid.mywebcommunity.org/scribus_tutorial_espaol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390381/normal_6040e99f3736c.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/ehdIhhb/gusinil.pdfIn PDF document text
    • http://mibilivo.scienceontheweb.net/xasiga.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/96976964014.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/5d5hjgd/mega_ramp_formula_car_stunt_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/duvetezoje/z2jjcjc/the_room_where_it_happened_among_us_animation.pdfIn PDF document text
    • http://dududuw.mypressonline.com/how_to_set_the_citizen_eco-drive_skyhawk_watch.pdfIn PDF document text
    • http://javaxirivibewi.mygamesonline.org/14752448223.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1de4b56a-3309-4767-83a2-f1bb1ea7c594.filesusr.com/ugd/a6e5e9_fe86896b683640e1bf18210eaba71c7e.pdf?index=trueIn PDF document text
    • https://f18b8dc1-3ce9-44bd-8712-01435d039869.filesusr.com/ugd/b97cba_97140f9a034544f182e6f291788288e3.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8F 5356 bytes
SHA-256: 036430f8da9f5ea04148864327d31cad656304785ff9ea74c18fdac90459fca7
font_01_sfnt_off0000fdba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDBA 11248 bytes
SHA-256: 2a8df23f30735c5d1694c4775d3c3db1fb0ae02f533ae2e1eede3c381674b71a

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