Malicious PDF — malware analysis report

Static analysis result for SHA-256 702aef427ac53cb1…

MALICIOUS

PDF

75.1 KB Created: 2021-01-25 14:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e96fa683b1f6e4d99ce5289bdce9047b SHA-1: 94bc70b1c0d2f2f05157c6896fbf6d2eca8c46cb SHA-256: 702aef427ac53cb116f6eda89189e29811552646a03520e7cf5bac5753e33ace
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to disposable domains and Weebly hosting, indicating a link farm or SEO manipulation tactic. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing or trojan. The embedded URLs suggest a potential for redirecting users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://leonvi.ru/aws?utm_term=bahadur+sontan+video+song PDF link annotation
    • https://mevukufidax.weebly.com/uploads/1/3/1/3/131379039/18645acf495.pdfIn PDF document text
    • https://cdn.sqhk.co/xetorexevapi/dECjbif/masha_and_the_bear_cake_topper_nz.pdfIn PDF document text
    • https://wobelafesuta.weebly.com/uploads/1/3/4/7/134767333/saxor.pdfIn PDF document text
    • http://gsmall.space/favofusuverirugidurrok.pdfIn PDF document text
    • https://rigawegafo.weebly.com/uploads/1/3/4/5/134587157/xepulapuwazejolop.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/gCkgegg/telugu_ringtones_2020_free_download_mp3.pdfIn PDF document text
    • http://zujonatuvetivux.iblogger.org/weather_report_in_kolkata.pdfIn PDF document text
    • http://leftoutclub.com/7119447532724wz5.pdfIn PDF document text
    • https://cdn.sqhk.co/wafexumu/cHjd6he/stranded_without_a_phone_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/gobumavurob/I60U8ib/temple_lost_jungle_escape_2_walkthrough.pdfIn PDF document text
    • http://magazinrf.xyz/62297892029zbccw.pdfIn PDF document text
    • https://cdn.sqhk.co/mugukawi/dcjgjhB/baldi_s_basics_classic_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/tusifefovozu/bcXbbfV/likee_let_you_shine_online.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/Gigwo6A/warikolase.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
    • http://kokiralasido.epizy.com/pafivotumidadamateti.pdfIn PDF document text
    • http://saxogif.epizy.com/early_childhood_education_today.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_off0000d9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CB 5048 bytes
SHA-256: d270d502e40ab227687bd7031d763c31da6e000d476aef5969f985ff93d7b28d
font_01_sfnt_off0000eaf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF6 11376 bytes
SHA-256: 0334f61906000a905e34e90adf4910b8f15155e5b2401efb117a2527ecfc8cf2
font_02_sfnt_off00011167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11167 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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