Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc7a1bf1a35365c…

MALICIOUS

PDF

81.4 KB Created: 2021-03-19 19:05:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 058c6c3128ebacc1f4e32c24897861d1 SHA-1: b15985530122175b54496d9ddeeb713e56896612 SHA-256: bcc7a1bf1a35365c812d2b877e966926dbc6d98990216380b86775fb17807946
156 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dafemum.ru/wix?keyword=shahid+apk+file PDF link annotation
    • http://sijetop.22web.org/82739823286.pdfIn PDF document text
    • https://xalifabosivibu.weebly.com/uploads/1/3/0/7/130775217/6542626.pdfIn PDF document text
    • https://cdn.sqhk.co/buwozumu/hheVtii/soboru.pdfIn PDF document text
    • https://jinajifija.weebly.com/uploads/1/3/4/8/134889339/xiwipaxini_temibaduzanajaj_putaze_vomubisa.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/VMx4xDg/96204773248.pdfIn PDF document text
    • https://bisenazogogo.weebly.com/uploads/1/3/4/6/134686343/177dd3.pdfIn PDF document text
    • https://zesaxigupube.weebly.com/uploads/1/3/4/0/134016892/dawemogajofesemegodo.pdfIn PDF document text
    • https://cdn.sqhk.co/futidiwe/ajdWggp/nepumok.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzesowasu/iagfMif/sanitarium_game_walkthrough.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kevamateralo.rf.gd/mazimuxawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b2efb37-1978-4fa8-a47d-52dba52f7295/30843533937.pdfIn PDF document text
    • http://vifabor.rf.gd/modle_de_bulletin_de_paie.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/65942297017.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/android_studio_remove_assets_folder.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/29922318060.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/sharp_viewcam_8_battery_charger.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/microsoft_connectivity_analyzer_tool_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42efd9e6-f65e-4663-9deb-8c9bc4c0d66c/how_to_fix_lg_bluetooth_headset_one_side_not_working.pdfIn PDF document text
    • http://verepuremi.rf.gd/english_vocabulary_about_food.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/snow_white_with_the_red_hair_ending_1_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/bipuxuxuxenawipuf.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE900 5020 bytes
SHA-256: 5ce6002cef5b86399d3237dfdffe9e3973a347ae3ad24ccc969b93b64946f8c2
font_01_sfnt_off0000fa1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1D 10804 bytes
SHA-256: fd57ba765f5f8c4952955dcc09aee16c013f23261fb73267e251020383d73376
font_02_sfnt_off00011f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F63 16588 bytes
SHA-256: b32433182745f50ec3d3130d51f042de618ee9b8d8f0387dbadaa90415dcd5ac

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