Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6c102c7009dd149…

MALICIOUS

PDF

73.1 KB Created: 2021-01-25 04:12:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 83898e25721cdac323d255978adf22f1 SHA-1: 96a32cba3e896b0cf6d27cab4b9bd35a107af5fa SHA-256: c6c102c7009dd14957cf9432468eee47c6c9f4ce680479ec60fb47684dbb5c57
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing trojan. It contains a large number of external links, many pointing to PDF files hosted on services like Weebly and s123-cdn-static.com, suggesting a link farm or a method to distribute further malicious content. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic indicate a strong intent to redirect users to potentially harmful sites.

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 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.
  • 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://maypoin.ru/123?utm_term=amd+a6-5200+apu+drivers PDF link annotation
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/3f94ffd3b.pdfIn PDF document text
    • http://pristav.pro/army_battle_simulator_free_gemsrie3r.pdfIn PDF document text
    • https://gawosiluzetur.weebly.com/uploads/1/3/4/6/134631715/dd596aebcb53bf2.pdfIn PDF document text
    • https://dorikorojuj.weebly.com/uploads/1/3/3/9/133987202/acabf184ccbe78.pdfIn PDF document text
    • https://vezutokabev.weebly.com/uploads/1/3/4/7/134758566/bisenavapamo-nasifeturi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383928/normal_5fd68aad6bd62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379230/normal_5fdf101ae819e.pdfIn PDF document text
    • https://selokifasafu.weebly.com/uploads/1/3/4/3/134383977/fuxiwokokigetodota.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427781/normal_5ffda3ee7c3a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368955/normal_600ad91ade15c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470222/normal_5feefc7b63eba.pdfIn PDF document text
    • http://filemarker.store/black_friday_sales_dropbnrtv.pdfIn PDF document text
    • https://wixozini.weebly.com/uploads/1/3/4/3/134383912/97c33dc1823.pdfIn PDF document text
    • http://rubisteq.online/heroic_magic_duel_apk_download7lt5x.pdfIn PDF document text
    • https://damajarulapo.weebly.com/uploads/1/3/0/7/130738748/tolat_livukivupi_tazowe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459628/normal_6000bbb2bced4.pdfIn PDF document text
    • https://luvidobanuneje.weebly.com/uploads/1/3/1/6/131606009/fajasorujo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488592/normal_5ff3d4570274c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454047/normal_5fda7ce4f099c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD80 5708 bytes
SHA-256: bb7ede39fdcdafee3063191248f80124ce14db6f027c631e4e07b8158ec58483
font_01_sfnt_off0000f0e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E2 11240 bytes
SHA-256: 8d903cc84fb452a2635f7c9db8b4de9b0cff5c36f19eafc31be9a8e10d5fe9de

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