Malicious PDF — malware analysis report

Static analysis result for SHA-256 48de159f046d8150…

MALICIOUS

PDF

118.9 KB Created: 2021-05-22 02:40:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: fb88cdc0a82b28fd1e1bb5ee058a3d15 SHA-1: ec95dec2dc2ce961b7759b39ca027e8e585f4633 SHA-256: 48de159f046d81505e9d1b9252c3f79ac6e4214880ecdd29c826cbd506e3f705
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of embedded links, many pointing to disposable hosting and redirector infrastructure, suggesting a link farm designed to lead users to malicious sites. The presence of a URL with a 'pokemon platinum randomizer rom mac' UTM term indicates a lure for potentially pirated or cracked software, a common phishing tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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/strik?utm_term=pokemon+platinum+randomizer+rom+mac In PDF document text
    • https://ponutafozo.weebly.com/uploads/1/3/4/7/134705240/5664539.pdfIn PDF document text
    • https://lolujimibo.weebly.com/uploads/1/3/0/7/130740441/56859ebbc18f52b.pdfIn PDF document text
    • https://badetujunomut.weebly.com/uploads/1/3/1/8/131857650/78dfb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373261/normal_600457353db61.pdfIn PDF document text
    • https://bogimejo.weebly.com/uploads/1/3/4/7/134713861/dolalevemepezixaxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413973/normal_5fe637b68fa97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377388/normal_6047100a417ed.pdfIn PDF document text
    • https://pidedofafotego.weebly.com/uploads/1/3/1/4/131438241/1307661.pdfIn PDF document text
    • https://ruvesupiranaduk.weebly.com/uploads/1/3/5/3/135314660/godozubafora-nosex-fumiboxamujaba-vijuxozu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421460/normal_5fe64404d43c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427504/normal_6052eab1d495c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476270/normal_5fdb24e5be1c8.pdfIn PDF document text
    • https://puvebimu.weebly.com/uploads/1/3/4/3/134311544/fuvepo-dejudosefa.pdfIn PDF document text
    • https://jenodaxadow.weebly.com/uploads/1/3/4/0/134012655/6150119.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465555/normal_603c37f5149d2.pdfIn PDF document text
    • https://supenavasude.weebly.com/uploads/1/3/5/3/135397397/wodikijenegofew_lupudizel_vunibowut_kufafagoroxisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456999/normal_60442f387a5d4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1591eaf-7d23-4d76-96fd-d28b896159b1/risimovokarulegevonusidu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccc53a64-a4ff-4100-b8de-01a70699d7d0/lobuzupuvetesijovoxunif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1eee0cd-d837-4efd-9d33-9ebf5045aa05/how_to_calculate_the_critical_f_value.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0172edc4-28fe-4c13-bc45-054d847cd528/navy_seals_vs_zombies_full_movie_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bce4cc88-3684-497a-8970-f944a171d356/rupozusuxazij.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A12 3876 bytes
SHA-256: 8abc67a915e5841478164d68165078fa824fb98bd879ff1f0a6154b5ae157af0
font_01_sfnt_off000177e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x177E6 5156 bytes
SHA-256: c925ff5103e1bb929483338a5daac3be714cbf21e9362de654116274fa8d0211
font_02_sfnt_off00018968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18968 15316 bytes
SHA-256: f2c6cdc1e31ea7b5eef9d0a142520c7b97ef18db12d423d4fcf5c74da8766e4e
font_03_sfnt_off0001b6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B6EC 16368 bytes
SHA-256: ae0670704a42cef4dd06e82d3e72cb8c89994005bedbe5eb60531e265e6bb324

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