Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad5c4f2b0618ad5b…

MALICIOUS

PDF

157.1 KB Created: 2020-11-11 18:19:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a2ab7352a7a5a2ece670f82990696171 SHA-1: cdb83b3ee8712b9df68786cd2b127f4fd29b6969 SHA-256: ad5c4f2b0618ad5bd03b3a5ddd4ab04f5620cd29c5f4c6565ced9fde9c497d0f
162 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for a redirector link to known malicious infrastructure. The ML classifier also assigned a very high probability of maliciousness. The embedded URL points to 'ggtraff.ru', a known redirector, suggesting the document's primary purpose is to lure users to a malicious site. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/aws?utm_term=android+18+and+cell+dragon+ball In PDF document text
    • https://munazuzane.weebly.com/uploads/1/3/4/3/134350045/3619665.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/sulusilalope-jobede.pdfIn PDF document text
    • https://kavaxaxogemiren.weebly.com/uploads/1/3/4/4/134441995/3297505.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/6990377.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/1682aec2d06170.pdfIn PDF document text
    • https://videxopefofima.weebly.com/uploads/1/3/4/1/134131768/3910489.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/jixidused.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/liketusamakofuve.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/85eabe5d-6587-46c5-9aa2-91198b845b05/vagagimogexodexiwa.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/gedikoz.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/rick_jackson_cpa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b5aa87e-1b37-460c-af26-09f11e67255a/a_wire_rope_sling_with_a_strength_of_10000_pounds_and_a_total_working_load_of_2000.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/fidezute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bb02c81-277c-4f3d-96fa-00fbee47431e/2800126461.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/57709415596.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/calculo_caida_de_tension_trifasica.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_off00021a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21A15 4264 bytes
SHA-256: ea118987a808594b9e813b1748d3e54c9f8215c1d48929014092af16adb9bd7b
font_01_sfnt_off00022927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22927 5304 bytes
SHA-256: 25c2d60d10dbabe3cc82c189db62b97d2affc25b76c293a018745512f279c213
font_02_sfnt_off00023b44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23B44 13752 bytes
SHA-256: fde7d6ed9e02d9bd1fd8406b34d1fa92421432c124ab86b1ee836f9ce9be1c4c

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