Malicious PDF — malware analysis report

Static analysis result for SHA-256 c146565c323a7575…

MALICIOUS

PDF

335.0 KB Created: 2022-05-27 20:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 1da8448308b25c20128c8f21acc14410 SHA-1: 986195ef1bf378b62ff91d1d970abf46f8aee792 SHA-256: c146565c323a75751722d18429411c49ffc440c5ddd4da11a3706a047b1d0d43
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of external URIs and the overall malicious verdict strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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://podar.co.za/XSRYdR1H?utm_term=abnormal+child+and+adolescent+psychology+8th+pdf+download+full+version
    • https://subarini.ro/mm/file/16785576945.pdf
    • https://rezukozivir.weebly.com/uploads/1/3/4/6/134631959/vikuverinikeluj_bufifasodegejuw_miderinogavipe_degogilutobabux.pdf
    • http://rexala.cz/upload/files/53276561965.pdf
    • https://lexurugimakosus.weebly.com/uploads/1/3/4/7/134718338/furubimitit-zemaxonikekeri-nefekotoda.pdf
    • https://sakata-mokuzai.com/db/item/uploads/files/pasapexavimeb.pdf
    • http://ing-triplee.com/ckeditor/kcfinder/upload/files/zibeweriwudus.pdf
    • https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/lokewe.pdf
    • https://fufilotaniwa.weebly.com/uploads/1/3/5/3/135321354/latodozaboxavi.pdf
    • https://vimonutubutixi.weebly.com/uploads/1/4/1/5/141514577/a624e22b3b7499.pdf
    • https://berizekaxijaj.weebly.com/uploads/1/3/4/5/134501449/vofazof.pdf
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1625c7cf2da42e---19569053937.pdf
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/1268090.pdf
    • https://jemavabe.weebly.com/uploads/1/4/1/3/141323151/lexum.pdf
    • https://wofokivatakewuw.weebly.com/uploads/1/4/1/9/141981100/fumezavamuwagow.pdf
    • http://edallyshop.com/upload/files/8471054738.pdf
    • https://junadiger.weebly.com/uploads/1/3/4/6/134639337/fumazokana.pdf
    • https://sebidodeg.weebly.com/uploads/1/3/4/4/134438526/77953314.pdf
    • https://mijerulusoro.weebly.com/uploads/1/3/4/5/134507666/6937453.pdf
    • https://lapolepep.weebly.com/uploads/1/3/1/4/131406498/fabovuxisofex_xebekidefogem_kezomubida.pdf
    • https://vapulorefemefiz.weebly.com/uploads/1/3/5/9/135956910/39b18e9.pdf
    • https://kuwuvolabakeg.weebly.com/uploads/1/3/1/4/131407812/9766545.pdf
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/162016d62cb269---jilujedepivudimasejorus.pdf
    • https://livaxuziwas.weebly.com/uploads/1/3/4/7/134708693/pabodejojeno-zinufaj-vapejexuvezawi.pdf
    • http://xedaptap.net/userfiles/file/zarafevewoxuzunujuven.pdf
    • https://bakanepa.weebly.com/uploads/1/4/1/8/141821213/4173581.pdf
    • http://journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/30950272102.pdf
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/burepudegezig.pdf
    • https://wegetafa.weebly.com/uploads/1/3/0/9/130969448/tisigatezaneteduparu.pdf
    • https://crownprolaw.cn/userfiles/Proj_Name/files/18603763866.pdf
    • https://zesozekoxetaba.weebly.com/uploads/1/3/4/4/134497604/bibag.pdf
    • https://gojolukok.weebly.com/uploads/1/3/4/4/134455450/donagivu.pdf
    • https://sigakoge.weebly.com/uploads/1/3/4/4/134437147/23b1461c0f.pdf
    • https://zonexaxu.weebly.com/uploads/1/3/4/7/134700630/duguvowudemife_wovuxe.pdf
    • https://jiwefirufij.weebly.com/uploads/1/3/4/3/134370204/fufijugivox-xoguvu-nupef.pdf
    • https://kalashad.com/userfiles/file/satudijilekuwososoredojo.pdf
    • https://lizoduloto.weebly.com/uploads/1/3/4/7/134701777/adc36dfcac9.pdf
    • https://zovodexipelozas.weebly.com/uploads/1/3/4/4/134401167/5979178.pdf
    • https://rejipupusixipab.weebly.com/uploads/1/4/1/2/141279164/wusoval.pdf
    • https://mewukonil.weebly.com/uploads/1/3/4/0/134096476/kukidisapuleg.pdf
    • https://doliwejivus.weebly.com/uploads/1/3/4/3/134353379/1938411.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004cae5.bin
d35cb2e012361ed84b57e2bc56a8b4ccbb6e62017af203920bb58095845146da
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAE5 16944 bytes
font_01_sfnt_off0004f77f.bin
169c760706aed275f9a9f2019b8b8420266ce15ad204d2b5311ce5fd24237bb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F77F 11760 bytes
font_02_sfnt_off0005131c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5131C 16792 bytes