Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec01fd530eda8d4…

MALICIOUS

PDF

78.7 KB Created: 2021-01-01 11:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 17d4e9f61b3182cd79eaab09b22713ee SHA-1: 38656f8e45d8ead6339d276f361f330a3d7e9ef0 SHA-256: 7ec01fd530eda8d496b96dc7321236b26090358044d9fe354b8f78916f8b05f1
182 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and a phishing lure, specifically mentioning invoice or payment language. The embedded URL `https://gettraff.ru/strik?utm_term=movistar+colombia+pagos+pse` is flagged as malicious. While no scripts were extracted, the combination of the malicious URL and the phishing lure strongly suggests an attempt to lead the user to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gettraff.ru/strik?utm_term=movistar+colombia+pagos+pse In PDF document text
    • https://cdn-cms.f-static.net/uploads/4484355/normal_5fb2d8668793f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405644/normal_5febd23de0ed1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502245/normal_5fdb9d9bea84a.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/1d5e75f3-0819-47c0-9555-8f91d163f347/irken_empire_the_almighty_tallest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce365eaf-6758-4b2c-b750-23be530eebc5/49599945894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1861d151-2dcd-49da-b1ae-113b3c97e4b2/mount_and_blade_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fa66d1c-92d8-497f-9029-e82c552d91e5/cook_it_cooking_games_madness_krusty_cook-_off.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10473003-8d24-46f1-95ae-dddad233f1d9/67551322491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c62c2392-c710-4fb8-8d5f-c4fc0913f72e/14583424384.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b585e964-e004-495d-89ef-dffc08d1a7c7/78765510103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f246dd7-cd32-4c59-92a8-e71969dc9f8b/travis_scott_birds_in_the_trap_download_zip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5c99627-82ee-4096-b43d-52dbbadaf300/fevanewo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE065 5460 bytes
SHA-256: d08a859fca32ea258ed5ed967416a67dcfd74358fbede0e6be5ec4f10af1c667
font_01_sfnt_off0000f2ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EE 11420 bytes
SHA-256: f00426e0eb9fe863cc2d9f43c97e5c31c29b759acff548c498c31834a369e0ad
font_02_sfnt_off00011943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11943 16076 bytes
SHA-256: d286e8b4d1cdafc5f769987bdccf7a6368ad55d0d3b8f98fd56bc2ae223999f8

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