Malicious PDF — malware analysis report

Static analysis result for SHA-256 accdce805352dedc…

MALICIOUS

PDF

82.5 KB Created: 2021-03-31 05:11:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 285607e67a5878d5edd7cb0a83b1cb5c SHA-1: 57c3698d68bcbc6f61008a566089c327651dc914 SHA-256: accdce805352dedc77fe91609a653975ec2db95ab406cc1b74a4070c8329345a
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs pointing to a link farm hosted on disposable domains, suggesting a phishing or SEO manipulation scheme. The PDF structure and embedded URIs indicate an attempt to redirect users to external, potentially malicious, content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0529

Heuristics 4

  • 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
  • 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://gimoguvi.ru/award?keyword=cahier+de+vacances+gratuit+a+imprimer+6eme+pdf PDF link annotation
    • https://bebojeraje.weebly.com/uploads/1/3/5/3/135302211/migeninebos.pdfIn PDF document text
    • http://bubiver.iblogger.org/mawuba.pdfIn PDF document text
    • http://menbp.online/kabel_charger_terbaik_androidz40df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500883/normal_601d4d1ca84fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503197/normal_6062e1e421a6b.pdfIn PDF document text
    • http://familyit.info/how_to_capitalize_an_asset_in_quickbooks28r3t.pdfIn PDF document text
    • https://fipokotosa.weebly.com/uploads/1/3/4/5/134506619/2029954.pdfIn PDF document text
    • http://gonunimob.iblogger.org/81046571803.pdfIn PDF document text
    • http://bluetea.space/what_is_text_structure_for_3rd_gradej3jmc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458634/normal_60076b2c3a4cd.pdfIn PDF document text
    • http://lowixop.22web.org/23402486626.pdfIn PDF document text
    • http://tomandbxof.site/adidas_yeezy_500_utility_black_retail_pricekrpwy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490141/normal_5fffd578e1079.pdfIn PDF document text
    • http://hallop.xyz/kowazozusiximipopufokxqoah.pdfIn PDF document text
    • http://jirafka.space/piano_chord_inversions_chart1yue0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454040/normal_6056d35a16269.pdfIn PDF document text
    • http://jilet1.club/xawejunubudz129.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_6046784960886.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490244/normal_5fe34cdb7ef41.pdfIn PDF document text
    • http://drovazvenigorod.ru/54895794719693pa.pdfIn PDF document text
    • http://prizinsta24.online/42189527389ay1bt.pdfIn PDF document text
    • https://benowanazopawa.weebly.com/uploads/1/3/0/7/130740092/razufuso.pdfIn PDF document text
    • https://povurumupun.weebly.com/uploads/1/3/4/8/134884194/1177247.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463532/normal_5fdbb89a2c8f6.pdfIn PDF document text
    • http://yognat.space/5174878546522pf3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lewizalejeso.rf.gd/bofirajo.pdfIn PDF document text
    • http://vinumokoz.epizy.com/lyle_mcdonald_books_download.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15B 5656 bytes
SHA-256: 8eb3c74b258521f47933ddaf39c4f90c9e4c82a8128f8b9f79355da8ccc27e7a
font_01_sfnt_off00010478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10478 13920 bytes
SHA-256: 3de63ea6d00cb1dfadbd4b1587be8a660a27ab8307768bb372e9373ec0109429
font_02_sfnt_off0001300c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1300C 16084 bytes
SHA-256: 5c0628dbf798e4a535d390b53ed5468c5dd6fcca9bc1e58e366025aad80fe5b5

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