Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ac45f8ce806e4e…

MALICIOUS

PDF

78.6 KB Created: 2021-05-30 02:57:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 7c0cb0914ed147cbc422149641ba93c5 SHA-1: bd53ec653124e1218fea73b470396ad2e85b4c9e SHA-256: d0ac45f8ce806e4ef416e426699e130c4cd8901a25e433d5a0df062406860aaf
136 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. The document body and heuristics indicate it's designed as a lure for a 'pokemon fire red gba rom download for android', directing users to a suspicious URL. This URL likely serves as a redirector to a malicious payload or phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jumiwimov.ru/strik?utm_term=pokemon+fire+red+gba+rom+download+for+android PDF link annotation
    • https://static.s123-cdn-static-d.com/uploads/4372719/normal_60afeabccb91a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_6067e46b9305c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465564/normal_605d833982468.pdfIn PDF document text
    • https://sefovajeve.weebly.com/uploads/1/3/0/7/130775607/xosopu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387713/normal_5ff4a4f98140a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387235/normal_5fed9112616dd.pdfIn PDF document text
    • https://kivubuzer.weebly.com/uploads/1/3/5/3/135332577/varuronibu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476270/normal_6051586284f8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483856/normal_604d9892f1b01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479454/normal_60392583dee0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406463/normal_5fdef66480e28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470533/normal_5ff26fc4673d4.pdfIn PDF document text
    • https://ponekuxu.weebly.com/uploads/1/3/4/7/134747949/100687.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/75755479-ac48-45c2-a388-3debdf9b6e24/zozifewobabomegiwanulug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99f58ba0-a0dc-4017-978d-1a95a7b8403d/what_kind_of_batteries_does_a_graco_baby_swing_take.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2598d65b-3702-4541-9822-e615deb1c014/pelefexipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b68a8441-6c5a-4a15-96e4-2f6f9c590511/kenmore_elite_he3_washer_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08e7d89a-51fc-40fe-96d6-2ee4d5e3929e/jaybird_x2_wireless_headphones.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15c234ee-d007-43c3-ae3e-63faed817f13/macbeth_patrick_stewart_full_movie_2010_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f87f0a0-60df-4d19-b34d-d0f693f4fb32/zaxufidebotewulizapoge.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E0 5348 bytes
SHA-256: af2ec2b243f228c11d0aa77d0d7f84f41ab745cf41077adcfd9900ea0440275c
font_01_sfnt_off0000fb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB08 3024 bytes
SHA-256: cf5ed4f450e5fc1fa31c8ac31b5dbd05637a4ba05cdfa332ae769b600578e534
font_02_sfnt_off00010636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10636 10720 bytes
SHA-256: aece8b750bb871f8479cfd03909922f2ca3ec183458e09e3dec6382e56f0b5c5