Malicious PDF — malware analysis report

Static analysis result for SHA-256 561f10f38943573f…

MALICIOUS

PDF

128.2 KB Created: 2021-03-20 20:18:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0600181a91475148c6060f83418cbc98 SHA-1: 7b748beacccf2b97398442b64e328a6409eea4d2 SHA-256: 561f10f38943573fec4351ef5bd245434937bad092d11032e2bfcb092bfa6d91
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website with a keyword suggesting a document download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of an external URI points to an attempt to redirect the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://druttle.ru/wix?keyword=pokemon+team+up+checklist+pdf
    • http://tefosewun.22web.org/37457718504.pdf
    • http://vofufime.mypressonline.com/taranis_qx7_access_manual.pdf
    • http://tixarofisaru.22web.org/rixusutubepe.pdf
    • http://wojifos.22web.org/dumefolulalekadujudibix.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fofeguj/bazugimadusowisutalul.pdf
    • https://s3.amazonaws.com/xakajoziwibi/91423801212.pdf
    • http://kubomefewofumim.atwebpages.com/boule_de_suif_francais.pdf
    • https://s3.amazonaws.com/sixolose/he_s_not_here_sheet_music.pdf
    • https://uploads.strikinglycdn.com/files/ad04c4d7-a752-4c7b-8972-e19c2bc505dd/legude.pdf
    • http://kosofodabo.rf.gd/nixon_sentry_ss_watch_battery.pdf
    • http://sarilakisorowev.rf.gd/standard_costing_and_variance_analysis_formula.pdf
    • http://mimugewezis.rf.gd/what_is_microsoft_project_2019.pdf
    • https://s3.amazonaws.com/ligole/31081969994.pdf
    • http://rekipefivikupa.rf.gd/44146229834.pdf
    • https://s3.amazonaws.com/sepawi/kamodogebibi.pdf
    • https://uploads.strikinglycdn.com/files/2b50e46a-bee0-4d72-9369-795dec2122b0/navusegipej.pdf
    • http://palexibibiw.atwebpages.com/22568993448.pdf
    • http://goguvero.epizy.com/69455555294.pdf
    • http://vugopumoluzunu.rf.gd/vimodizesokanozemir.pdf
    • http://medazupu.onlinewebshop.net/50805798551.pdf
    • https://uploads.strikinglycdn.com/files/1f382344-0442-40e3-8524-c5124b5ebb9d/mebofarusugob.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_off0001aa2e.bin
8edf6569dd73920eb88d68efdd5bc69c2019c45deb1e92717b398265f6165c6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA2E 4068 bytes
font_01_sfnt_off0001b890.bin
f2f1efe5a2660679b25e93c83e2c775797f32bb8c5e47305891b1723b452e13e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B890 5364 bytes
font_02_sfnt_off0001cab1.bin
705504491d9866d880a742b9a5882cc64ef4b7d6fec3e142c68caec6423fb8e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x1CAB1 11760 bytes