Malicious PDF — malware analysis report

Static analysis result for SHA-256 01fcd8afc7d93d25…

MALICIOUS

PDF

94.3 KB Created: 2021-03-14 12:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: c1aece5f593a317e90d5ac701b5f709b SHA-1: cd1a2082367b80b442e5d6421ff8dbc66b1426c4 SHA-256: 01fcd8afc7d93d251a4c5f401afb15356f218a858ce9f35cc13d863adfaff7c8
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs pointing to disposable hosting services, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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/wix?keyword=logitech+harmony+home+control+manual PDF link annotation
    • https://lavidibiw.weebly.com/uploads/1/3/4/5/134582964/8957799.pdfIn PDF document text
    • https://vadisasezex.weebly.com/uploads/1/3/1/1/131163908/a75b43e35.pdfIn PDF document text
    • https://cdn.sqhk.co/liregagibago/icja2x0/bijovu.pdfIn PDF document text
    • https://wisetigu.weebly.com/uploads/1/3/4/3/134357320/ranibijotaxe.pdfIn PDF document text
    • https://tejelodaburibav.weebly.com/uploads/1/3/4/3/134317360/94253ea357c04.pdfIn PDF document text
    • https://mepokebifonamos.weebly.com/uploads/1/3/4/0/134096039/6772672.pdfIn PDF document text
    • https://bebibamo.weebly.com/uploads/1/3/1/4/131438385/6040712.pdfIn PDF document text
    • http://jitokinut.iblogger.org/mozilla_firefox_45_portable.pdfIn PDF document text
    • https://cdn.sqhk.co/zapajugadira/lAGkahe/64747682681.pdfIn PDF document text
    • https://cdn.sqhk.co/zetuzire/gQYWije/vadonuxadubag.pdfIn PDF document text
    • http://dokanusivodob.22web.org/koxoribaziwedibumexexixa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • https://s3.amazonaws.com/suximawo/winter_formal_dresses_melbourne.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/76507301941.pdfIn PDF document text
    • http://podemerobetalax.epizy.com/lajivezuwulajawipexaz.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/dizajifajaj.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/fikanaselotabilijale.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/what_is_one_touch_ultra_control_solution.pdfIn PDF document text
    • http://kawuduzan.rf.gd/how_many_carbs_in_sonic_diet_cherry_limeade.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001194e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1194E 5080 bytes
SHA-256: ff9d48b74a261db9d5c74927f4072a24f6b84052fd762708f75867218777e604
font_01_sfnt_off00012a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A7B 2256 bytes
SHA-256: 3f5bbfdc06ac83408617764581de356db3f2f69d89f897230e698da09f556810
font_02_sfnt_off00013439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13439 14852 bytes
SHA-256: 342875a8a1322ee78efac53002f6d532c14fc4b849efceedb457dc21799302af
font_03_sfnt_off0001605a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1605A 2112 bytes
SHA-256: 1c70b99a5df0b66250271b91538c9a5a1dcde3395c02b3cd51bb3f9db5823885

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