Malicious PDF — malware analysis report

Static analysis result for SHA-256 9617f749ad53b393…

MALICIOUS

PDF

99.0 KB Created: 2021-02-27 00:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fd7bbd020403dddb94c3172a3d0ad7f2 SHA-1: 21b59dea731fb0ff15ebc6d417d79cabd5991556 SHA-256: 9617f749ad53b3930d8f8c47069e312259e92f3f6038e54f552a5ecad79d71fb
186 Risk Score
Tags
free-cdn-ebook-manual-lure

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 phishing or scam attempt. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The document body, though heavily obfuscated, appears to contain keywords related to product pricing, likely as a lure to encourage clicks on the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://botokaw.ru/award?keyword=samsung+grand+prime+pro+price+in+pakistan+2019 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367648/normal_5fe2dd08df311.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/ctQchdC/stickman_fighting_games_free_unblocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421209/normal_6026b9e177f30.pdfIn PDF document text
    • https://webavetoromezo.weebly.com/uploads/1/3/5/3/135346546/pomiw-netexukagoxa-fezeluravoju-jajaxarezuga.pdfIn PDF document text
    • https://tazuwadafif.weebly.com/uploads/1/3/4/8/134857375/ruvosigonuranufox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492281/normal_60397046cff9d.pdfIn PDF document text
    • https://masizomomom.weebly.com/uploads/1/3/2/6/132681315/gakururomimeriguja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369161/normal_600c0602a5920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_603973425ed98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444371/normal_5fe0f2d8ef97e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462352/normal_5fccad31ca802.pdfIn PDF document text
    • https://cdn.sqhk.co/kixowijeka/h6K4gec/web._telegram_qr_code.pdfIn PDF document text
    • https://vakilelem.weebly.com/uploads/1/3/1/3/131379598/dogulerano-debuneze-duwavere.pdfIn PDF document text
    • https://midatapeb.weebly.com/uploads/1/3/1/0/131070166/b0b15b18df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_602f47ef3cd4f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/taposotepam.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/zixuvibepuxekiduvawevu.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/bookworm_deluxe_per_android.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24A 6008 bytes
SHA-256: e9587b89d2a4da8f6940bc4886430277ed2c7156b31fc1aceaf2c36bead15c69
font_01_sfnt_off000106aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106AA 2196 bytes
SHA-256: a5067b6b273d805be0a2cb16434a380324c83a7396b9aad2763f2bcd44f3bd35
font_02_sfnt_off0001103c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1103C 3852 bytes
SHA-256: fb9a9d6d956734aafa617145bc4294d680f35380ebfe4cccb0c41768ced05ec5
font_03_sfnt_off00011bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BFB 2800 bytes
SHA-256: fd2c589d7f1fdc6b45908b7e6090fac7e9d49628e1ec9941768bd75dc132fb9d
font_04_sfnt_off000126ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126AC 16140 bytes
SHA-256: b2580f554d0d2f023a6b5ce8c2b3d8bd6123ac9ba87220e564e04dd19525b0b2
font_05_sfnt_off000158e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158E5 17148 bytes
SHA-256: dbcbd8fa54bd4e88c7c936eda0487bfc2d6b0c689d72e688c076f4fcfbd91df0
font_06_sfnt_off00017246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17246 2416 bytes
SHA-256: 606572454e85aeb57f6656cf48871ed3cc3cba181eae4edc1c6e97d9fefe09d3

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