Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8029365f53d8e8…

MALICIOUS

PDF

67.1 KB Created: 2021-03-20 02:47:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 758dac9c93bb4afdc43d9f50b639c433 SHA-1: 8d4807d17c8a00d9330d44c101f853a99d7dace2 SHA-256: ea8029365f53d8e8f518fcf284312bc96ca2a4028abdd7a55042beee4871aef1
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a significant number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The presence of embedded URLs further supports this attack pattern.

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://jumiwimov.ru/123?utm_term=bhojpuri+video+dj+mein+gana PDF link annotation
    • http://simopuvoramawu.mywebcommunity.org/maravillosos_desastre_saga.pdfIn PDF document text
    • http://momarivido.mypressonline.com/56812107512.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/41195957403.pdfIn PDF document text
    • https://cdn.sqhk.co/niwuruba/YEjfgcy/sololearn_learn_to_code_for_free_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xavexapoxiv/i8hcjjq/zuduzuxoloxu.pdfIn PDF document text
    • https://cdn.sqhk.co/jekefebiba/AjgjgBH/295050272.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/what_happens_at_the_end_of_killing_joke.pdfIn PDF document text
    • https://wefigoga.weebly.com/uploads/1/3/4/0/134041661/495a9571ac.pdfIn PDF document text
    • https://cdn.sqhk.co/butuxolevu/Clhhicl/eartha_kitt_quotes.pdfIn PDF document text
    • https://nujobivodiji.weebly.com/uploads/1/3/4/7/134771327/matapadagefadozifib.pdfIn PDF document text
    • https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/melujotikudomis-xabenoleduzojo.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/gL8LggK/winumovaku.pdfIn PDF document text
    • https://cdn.sqhk.co/vigefifobot/gjegdVd/zinolobave.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xijejuvi.myartsonline.com/togese.pdfIn PDF document text
    • https://52a72965-a6d2-471e-b66a-59a59a4d663b.filesusr.com/ugd/e643da_e6320e2be2f2409cb19c71ad1d789fe9.pdf?index=trueIn PDF document text
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_9e6cc4ab0fee494eba6ca273e2373785.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/limewub/avast_internet_security_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/64486340060.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_off0000c8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B6 5348 bytes
SHA-256: dabcfd3aec08cb0c06b9fb2c6b90f5705f26bfa3cc215755e2a6483754337df8
font_01_sfnt_off0000dacc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACC 10136 bytes
SHA-256: ff7bab2508431b46f0388578369bad307d12ccd17fc4f11fa55d4f1c6d5f8ed2

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