Malicious PDF — malware analysis report

Static analysis result for SHA-256 24b844d433725533…

MALICIOUS

PDF

78.5 KB Created: 2021-05-09 05:55:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6114996aa123474f25dfc27fa2a8f83b SHA-1: 129e82471c37da15782603086506345ecd74e96f SHA-256: 24b844d4337255338c060df3e98f279807d60d29286413255b08bf3386be00dd
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a phishing page disguised as a support article. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the document's structure suggest it's designed to trick users into clicking malicious links, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://resalured.ru/strik?utm_term=why+won%2527t+my+slim+folio+keyboard+work
    • https://cdn.sqhk.co/vomisape/aghkhdd/kidivatimoxozopa.pdf
    • https://besugadofozoxi.weebly.com/uploads/1/3/5/3/135396803/5929264.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://itclick.info/23126927124trec1.pdf
    • https://cdn.sqhk.co/munemuzabuk/hacMifT/1362590710.pdf
    • https://cdn-cms.f-static.net/uploads/4497369/normal_601cb1bf181a6.pdf
    • https://cdn-cms.f-static.net/uploads/4425229/normal_604130e73c694.pdf
    • http://bestsalestoday.xyz/dorenaxaznpoes.pdf
    • https://sekojeti.weebly.com/uploads/1/3/4/5/134583019/6539017.pdf
    • http://help-bluebadgecenter.com/45690330298px8b9.pdf
    • http://gabutetidik.22web.org/art_of_linear_electronics.pdf
    • https://static.s123-cdn-static.com/uploads/4402712/normal_5fe5da6e1f00b.pdf
    • http://sportplays.ru/vajiguniwapeziwazibod8sld.pdf
    • https://cdn-cms.f-static.net/uploads/4462681/normal_6052ee7e3fb84.pdf
    • https://walipovagotil.weebly.com/uploads/1/3/6/0/136016519/werozepumor-mivexesimivelu-bexano.pdf
    • https://cdn-cms.f-static.net/uploads/4417128/normal_601b725ac0f15.pdf
    • https://cdn.sqhk.co/kevovevude/c25K0Rg/vabofedomul.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://pipotaxi.rf.gd/how_to_make_a_scary_imovie_trailer.pdf
    • http://jedabotuz.epizy.com/behavioral_approach_of_management.pdf
    • http://fokotizemol.rf.gd/rocket_propulsion_elements_6th_edition.pdf
    • http://zisafarur.epizy.com/how_to_boost_self_esteem_and_confidence.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e513.bin
2431c3ee70eb5d31a765504be67a164e94dfb60d8d7595f70a5f30c3b8f413de
pdf-font-stream PDF embedded font (sfnt) at offset 0xE513 5380 bytes
font_01_sfnt_off0000f73e.bin
386a206102b09a4a6fa7bbb23f0897bd44734391b8d99555b2a6756a37d3d09f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF73E 11416 bytes
font_02_sfnt_off00011e3e.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E3E 4324 bytes