Malicious PDF — malware analysis report

Static analysis result for SHA-256 0195132b2b01d29f…

MALICIOUS

PDF

70.6 KB Created: 2021-03-28 01:08:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 929e6309cae6a4d4989364a4c80ceff4 SHA-1: 26c49dcec96aecd027936a8fd789c05eaa833a23 SHA-256: 0195132b2b01d29f1b2002670d91b52b974786b598b9092482485dd84ec52db9
156 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are hosted on suspicious domains and are likely part of a link farm designed to host malicious content or phishing pages. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing. The document body, though heavily obfuscated, appears to be a lure related to a pension allowance form, aiming to trick users into clicking the embedded links.

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://soxebez.ru/award?keyword=antrag+auf+altersvorsorgezulage+2020+pdf PDF link annotation
    • https://cdn.sqhk.co/mudinaxape/5hdY2Dm/42604637371.pdfIn PDF document text
    • http://pogekoxuw.mygamesonline.org/dawalaveverigufe.pdfIn PDF document text
    • https://wiwofuda.weebly.com/uploads/1/3/2/3/132303082/2eb00f7b18b38f.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/munepewoxevivupalivoxe.pdfIn PDF document text
    • https://vobulesije.weebly.com/uploads/1/3/1/8/131857334/9473868.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/893008830.pdfIn PDF document text
    • https://damanula.weebly.com/uploads/1/3/1/8/131856109/momepupumileped.pdfIn PDF document text
    • http://zoxodur.sportsontheweb.net/can_i_change_my_address_on_my_drivers_license_online_in_nc.pdfIn PDF document text
    • https://dilipifoson.weebly.com/uploads/1/3/1/0/131070096/1bb516551ca4eb.pdfIn PDF document text
    • http://waliduv.mypressonline.com/motifed.pdfIn PDF document text
    • https://cdn.sqhk.co/wejawujagi/bhjibgj/75356492480.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/how_to_knit_slipper_socks_for_beginners.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/mefovu/97061075285.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/is_the_movie_percy_jackson_on_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/76535102085.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/71471742958.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/gowenuke.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/58840586447.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/kerunaganomamorapawusalo.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/how_to_help_someone_heal_from_childhood_trauma.pdfIn PDF document text
    • http://rawegutidum.onlinewebshop.net/bacillus_anthracis_en_animales.pdfIn PDF document text
    • http://xumuritikoxuk.myartsonline.com/28529040321.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3A 5584 bytes
SHA-256: 5df9c137bf00453dd0468828a984a09c3b2f20f77222e19c33c8a0e3e63348a5
font_01_sfnt_off0000e25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25F 12300 bytes
SHA-256: ff962dc56c9cfd19828305973b3758a8e3876ee8936914ebb5c955884960caad

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