Malicious PDF — malware analysis report

Static analysis result for SHA-256 daed00faa41b9cdc…

MALICIOUS

PDF

77.4 KB Created: 2021-03-11 05:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 717cec2df566b625a249d5209d73d4f9 SHA-1: ba7298ebf170e44dd472d77c61b3cb27f503fcec SHA-256: daed00faa41b9cdca2e69d7f31f1c8fdbdb77e8b01cb104de99ebbc31f3502c0
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though partially obfuscated, contains a lure related to 'kpop stars' and points to external URLs. The presence of numerous external URIs and link farm indicators suggests the primary goal is to redirect the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 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://fokemale.ru/strik?utm_term=why+are+kpop+stars+so+pale PDF link annotation
    • http://knitfqph.site/38677842833qtzk8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485149/normal_5fde65801e241.pdfIn PDF document text
    • http://joy-todays.online/316756113850vovs.pdfIn PDF document text
    • https://zawuziwoju.weebly.com/uploads/1/3/1/6/131636930/ketakegoverotoja.pdfIn PDF document text
    • http://bioforcecolumbia.site/movudibewetafoxotaporakobs8tr0.pdfIn PDF document text
    • http://afracheat9.xyz/what_are_the_signs_of_the_book_of_revelatione7cf4.pdfIn PDF document text
    • https://dibegojiziwezed.weebly.com/uploads/1/3/0/7/130739363/jorani-nalam-tegabezisozumi-fenome.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476943/normal_604166b393569.pdfIn PDF document text
    • http://sosiwuro.iblogger.org/rujofuxevutukovef.pdfIn PDF document text
    • https://widedajixefur.weebly.com/uploads/1/3/5/3/135312737/wuvuvojafomoluf.pdfIn PDF document text
    • http://blubadgehelp.net/99_names_of_allah_with_their_benefits_and_meanings_in_englishav59v.pdfIn PDF document text
    • https://bowetupivivuz.weebly.com/uploads/1/3/1/4/131437724/silitusadukol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421365/normal_5ff68c17801ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501770/normal_5ff81c069b54e.pdfIn PDF document text
    • http://souve.me/57546140790moqhs.pdfIn PDF document text
    • http://vzale.ru/mini_golf_near_me_open_during_covidn7s4v.pdfIn PDF document text
    • http://meetplafond.xyz/72287266088zn8d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458618/normal_5fe1c01227ee6.pdfIn PDF document text
    • http://snatural.space/50_cents_in_1947_worth_todayz2z2r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zibakogemigana.rf.gd/27498733972.pdfIn PDF document text
    • http://zetinemimofoti.epizy.com/wovetabakebig.pdfIn PDF document text
    • http://dozudaz.epizy.com/59327184030.pdfIn PDF document text
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_a0ae693cba854b1392dd84f16932bafe.pdf?index=trueIn PDF document text
    • https://7ef7ebf0-bcb0-4ca2-8538-5a19c3e9f01c.filesusr.com/ugd/aff7ca_ae31a7762bf74e1489fc006e5c3514f3.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61E 3348 bytes
SHA-256: 75f68114e70d36c92cfe7c52751688f5ae7c5c76efb634d120490383e527b245
font_01_sfnt_off0000f21b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21B 5088 bytes
SHA-256: 3adbe6e92d838573010dbdd06eaf6d3e850c4660de5da5c64ebe39dc939fd18b
font_02_sfnt_off00010373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10373 10664 bytes
SHA-256: 09292034b3c85c85845e2674422dedd8961abc4e3cec6290624b2ce3e6b010d1