Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd331a756c309035…

MALICIOUS

PDF

69.5 KB Created: 2021-03-20 08:20:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 10fe8325c3de6508652ecc03619a5b10 SHA-1: 20d5400c8372ebd365a7566c8436fc389b698987 SHA-256: fd331a756c3090355f10dfba7f90a2d176facd8c5e75290616c98dd2d4f79b99
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://baarspo.ru/award?keyword=aggression+scale+test+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4389370/normal_5ffef88721f1b.pdfIn PDF document text
    • https://cdn.sqhk.co/kogujipubap/eW376jh/cannon_balls_3d_famobi.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzalolotagi/tqTrpjc/58960134790.pdfIn PDF document text
    • https://romidanunopupef.weebly.com/uploads/1/3/1/1/131163616/2313794.pdfIn PDF document text
    • http://ueuniti.xyz/744116067541gl2d.pdfIn PDF document text
    • https://supimoxu.weebly.com/uploads/1/3/5/3/135319300/899866.pdfIn PDF document text
    • http://cleaner360.shop/dugegumasofuwifebozofanphe1.pdfIn PDF document text
    • http://olivamebel.com/xadajotadupomuxuborrhadd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451760/normal_5fed6ba220a7c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461485/normal_5fec4c0baa155.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/mwhdjYi/madagasikara_orange_money_plus.pdfIn PDF document text
    • https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/194464.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460682/normal_604a52698345c.pdfIn PDF document text
    • https://niravewowinud.weebly.com/uploads/1/3/5/3/135343761/lawifi.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/nitizobuv/best_antivirus_and_malware_protection_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/maxipoxewipo.pdfIn PDF document text
    • http://xenilesaripesu.epizy.com/apc_ups_750va.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/what_is_the_best_3000_watt_inverter.pdfIn PDF document text
    • http://guminol.epizy.com/96781054253.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/story_map_template.pdfIn PDF document text
    • http://rilenipavow.rf.gd/kogozamonopufomelima.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECED 5312 bytes
SHA-256: 4c4e772266998a25c4e15bf2f200011d896570d7b0db05ed0ac0b26cd4a38ce5

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