Malicious PDF — malware analysis report

Static analysis result for SHA-256 165456b2e807b72a…

MALICIOUS

PDF

94.4 KB Created: 2021-03-29 13:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1cdb98812eb2edb5ead665371caaeaa8 SHA-1: f777691f5b8bcd81eeb90cd78b53a51d98cfe7be SHA-256: 165456b2e807b72ab6e197622ecc716d3211380ef40c0893c013c97aca6e26f2
154 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 as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=one+direction+you+and+i+lyrics+arabic In PDF document text
    • https://cdn.sqhk.co/bexamajuw/YIgfjDq/73423756251.pdfIn PDF document text
    • https://cdn.sqhk.co/zozijawutuxu/ljvxzcV/mojivawuwenovofonufo.pdfIn PDF document text
    • https://cdn.sqhk.co/fuludasowipu/hctha41/12523254038.pdfIn PDF document text
    • https://cdn.sqhk.co/pofaxexaxi/cigyyia/28795671759.pdfIn PDF document text
    • http://123dutch.com/1991_s10_starter_wiring_diagramjmv1m.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/hejhLhb/rujonozako.pdfIn PDF document text
    • https://cdn.sqhk.co/xexogataza/jeiieia/samsung_j7_ringtone_download_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/Fghghnr/gijutifosime.pdfIn PDF document text
    • https://cdn.sqhk.co/giravopakiw/ejbilhh/gladiator_glory_mod_game.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/ghwgfjd/76581589530.pdfIn PDF document text
    • https://cdn.sqhk.co/kurutuxerodi/CWZifU8/pica_pica_candy_shipping.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/how_to_get_a_vet_assistant_job.pdfIn PDF document text
    • http://rojapamun.epizy.com/ge_xl44_self_cleaning_oven_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/dls_unlimited_coins_profile._dat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b573f64f-2627-4147-97ab-a73f76ac56af/what_is_the_net_force_acting_on_the_wrecking_ball_if_the_cable_snaps.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/zutapogabab.pdfIn PDF document text
    • http://demunoj.epizy.com/72461455277.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fab5c380-2eb7-4711-b1e1-d114fc0c970f/how_many_fifty_shades_of_grey_are_there.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00013726.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x13726 28324 bytes
SHA-256: a8b21fd4dc5e305fdc965e0ae34b099008d8bc7da803f2daab34f03635a92760
font_00_sfnt_off0000ef20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF20 6864 bytes
SHA-256: 4d756c92c6a42d2d30b049e6f271b7b5d160c764540079312d9daa552bcd20a3
font_01_sfnt_off00010079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10079 5204 bytes
SHA-256: 77f2a9b9ded0d8bdc4c848235a86ee0d03b6575ca902382650e2ddbb7cf31440
font_02_sfnt_off00011236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11236 10696 bytes
SHA-256: 58cceeed347fd80f0911a282cf7e284f1ce258dd496a77c1c5d570238124a787

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