Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac456c602b62a683…

MALICIOUS

PDF

110.6 KB Created: 2021-05-23 21:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 22a03dc054bfd2b10df2a94d05cbc43d SHA-1: b46014e887f05588880de679194c2ab4ab86c489 SHA-256: ac456c602b62a683cc4792e0bc8e9b50061e96424f92baba31aa7845982f87ed
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous URLs strongly suggest it's part of a campaign to drive traffic to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9852

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dugedepap.ru/strik?utm_term=mera+bhola+hai+bhandari+remix+mp3+download+djpunjab PDF link annotation
    • https://kuvixajixi.weebly.com/uploads/1/3/1/6/131637850/13e4c5af50b651d.pdfIn PDF document text
    • https://sewobefavewekog.weebly.com/uploads/1/3/4/3/134367647/3577269.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454679/normal_5ff02b78a594a.pdfIn PDF document text
    • https://fugofululedu.weebly.com/uploads/1/3/7/5/137515284/1368843.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/suwivikofimulibokix.pdfIn PDF document text
    • https://dawokopo.weebly.com/uploads/1/3/5/3/135314789/jemewatixug_rifitam_wadelasaneniwov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475391/normal_6056f6c265aec.pdfIn PDF document text
    • https://tazowodogakog.weebly.com/uploads/1/3/1/4/131437711/togiburipikam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421365/normal_605bdc45e7812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414682/normal_60296049711d1.pdfIn PDF document text
    • https://devanuwi.weebly.com/uploads/1/3/0/9/130969177/ginujegele_sekupul_susubobebumuj_tozodal.pdfIn PDF document text
    • https://bopunesarikimar.weebly.com/uploads/1/3/1/4/131453984/4122547.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/sad_background_music_no_copyright.pdfIn PDF document text
    • https://vugopese.weebly.com/uploads/1/3/0/7/130739154/jesubukoxoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/d774f5d2-e61f-4981-9ff0-33868ce37934/kunemamuzumeburopulozejez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abdf6f60-82a7-469c-a1e1-23d260a02758/wegadezuwomarobuzipite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cbbf63f-617b-49cd-b026-322bc1eb89c1/22623050992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89c54794-2f99-47ca-9c53-38d7b6cf7ad2/what_flower_represents_god.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/579ded5b-3f47-4711-9dae-c270ec706045/formato_de_hoja_de_vida_en_word_para_editar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dbb3dd9-cbb8-488b-bb1a-d855e40b4ceb/do_portable_air_conditioner_leak_water.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3098ad9-777d-4886-84f6-fb944a82c986/what_is_rule_in_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ca78887-f1c8-459d-b33c-b35144a5d8c4/fisher_and_paykel_dishwasher_top_drawer_not_working.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
    • 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f43e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43E 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off00010525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10525 5368 bytes
SHA-256: 2cb0bba2a85ac0d95e5b7f2e8f3e45e5b3331d8d6118be5c005428aac71c9c94
font_02_sfnt_off0001173d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1173D 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_03_sfnt_off00012298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12298 4688 bytes
SHA-256: f927ba598253ff9f3c2b546fab8dadaf4514625e88e535817d284d5634511d73
font_04_sfnt_off00013426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13426 5852 bytes
SHA-256: 070190071500e4e782f35bfd755afae89b66324ef3097a980fd68c75fb9893f1
font_05_sfnt_off000142e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142E0 11040 bytes
SHA-256: 271692324501d252c6eb286b1c3bd766245918d6f38e9af357369c8b078cc186
font_06_sfnt_off000168e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168E8 16480 bytes
SHA-256: ba92f4a17ccaf96d9b83132e80cc0014c420835dcedb5fba2ff999e9a93197d9
font_07_sfnt_off00017f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17F45 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_08_sfnt_off00018d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18D46 8544 bytes
SHA-256: 10798a3f91f467b4a435de37385ae01add0c33cbee02044f0f98494c2205506a