Malicious PDF — malware analysis report

Static analysis result for SHA-256 095ce6c07dca92b9…

MALICIOUS

PDF

87.2 KB Created: 2021-06-01 05:37:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 875b8cd20e33dd68a59d40e07ae99b70 SHA-1: 7948fc5f1662875cc58f12941de973c1c22049ba SHA-256: 095ce6c07dca92b941504cd8349d9cf8edc7c588645626ba3b121b054b177e6b
164 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating it hosts a large number of external links, likely for SEO manipulation or to host malicious content. One of the primary URLs points to a site offering 'car crash games 3d apk mod', suggesting a lure for potentially unwanted or malicious software. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pixomot.ru/pbw?utm_term=car+crash+games+3d+apk+mod
    • https://tagekoworiz.weebly.com/uploads/1/3/4/0/134016686/begigapofetolo.pdf
    • https://puvedevedumu.weebly.com/uploads/1/3/1/4/131406841/42e6964a791.pdf
    • https://pugefaguza.weebly.com/uploads/1/3/5/2/135299010/mewamununav.pdf
    • https://vudewozojaw.weebly.com/uploads/1/3/6/0/136053158/pomifonejoju_firevosuke_zilulemaxazom_gozaxizige.pdf
    • https://gupibaparokepes.weebly.com/uploads/1/3/4/8/134889539/tedefefodudumodita.pdf
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/wefamin.pdf
    • https://xeneniwavufew.weebly.com/uploads/1/3/2/8/132814439/84542dcd447d9ce.pdf
    • https://mufanujirube.weebly.com/uploads/1/3/5/3/135348440/jaxakas.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/64fb3ea8-596e-4f6c-ba02-0d0d29e53d69/little_house_on_the_prairie_season_8_episode_14.pdf
    • https://uploads.strikinglycdn.com/files/807e5fc6-72d5-485f-9e7e-cd11003cd5c4/necky_manitou_14_for_sale.pdf
    • http://giresizuloki.pbworks.com/w/file/fetch/144434565/is_bangladesh_eligible_for_dv_lottery_2021.pdf
    • https://uploads.strikinglycdn.com/files/c2c1cdd7-24d3-429c-b0d5-e03974cb99d6/dewazalejem.pdf
    • https://uploads.strikinglycdn.com/files/04579d34-6fef-4aef-a966-6a27e81ec979/96883445940.pdf
    • http://mapijakemifo.pbworks.com/w/file/fetch/144442260/class_4_maths_multiplication_and_division_worksheets.pdf
    • http://kufujibumufa.pbworks.com/f/35907509179.pdf
    • http://rasovuxosew.pbworks.com/f/how_to_build_circuits_in_tinkercad.pdf
    • http://siwuromo.pbworks.com/f/which_transformation_rule_represents_a_rotation_of_90_degrees_clockwise_about_the_origin.pdf
    • http://dawijunegolo.pbworks.com/f/92100208649.pdf
    • http://mikabipi.pbworks.com/w/file/fetch/144434520/dosizunuvixonuroli.pdf
    • https://uploads.strikinglycdn.com/files/707667ff-5320-4b15-9392-4ca12a143e8c/statistics_for_machine_learning_free_download.pdf
    • https://uploads.strikinglycdn.com/files/712e96dd-43c9-4137-8947-2201666c6081/98773116893.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eac6.bin
00ae941f4ef3c127ea494c72365bf364bb4a4b9d5d6b251cf74e08a7d64a4e8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC6 3904 bytes
font_01_sfnt_off0000f8b7.bin
286c3d2d5827439b4768ce78b0cf28d551f3ef02fd18608aecf3538acd9bbb4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B7 5588 bytes
font_02_sfnt_off00010b87.bin
a0a9fdfef9e6cd5e8293cba34b43a3ce96defba2d78168ed43f39dbe0b04988d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B87 16584 bytes
font_03_sfnt_off000139a9.bin
039ba676cffb3508e6dd9eda6621cbf12654906a83bb9309c08ab8282fbc8439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139A9 16244 bytes

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