Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cedf4acd0425ec2…

MALICIOUS

PDF

77.1 KB Created: 2020-11-16 19:35:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d2a3ae0b4fb4ac388dbde0c5fdfab01c SHA-1: f3eb193a5279de53988831300015e9471d3553e6 SHA-256: 7cedf4acd0425ec2e6bb73490a08cf1c688bf66a520aa65ada0fb1b7a859af93
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL, https://trafffe.ru/123?utm_term=gemma+chan+acting+agency, which is likely used for phishing or to download a secondary payload. The document body and metadata suggest a lure related to an acting agency, indicating a social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/123?utm_term=gemma+chan+acting+agency PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risisipajole/g2_vs_tl.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/formation_apiculture_algerie.pdfIn PDF document text
    • https://s3.amazonaws.com/suzitivasekoga/mary_rowlandson.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/sopefefubewososamasab.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/stealing_the_diamond_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/introduction_to_agricultural_engineering.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/182a8fa6-baf7-489b-9270-160ae92341e9/osrs_chompy_bird_hunting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/56786581046.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/3003636868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62baaf05-1c70-49af-8a89-6d45e26862fe/44173956197.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/53902690014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9449bd4a-3852-46d3-98cf-d6b2c29ad57b/32109399457.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/fuladilezopurumo.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_off0000e1d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D3 4432 bytes
SHA-256: e71b8f087e7bc1fe7430b870e87b55438b1e338e63a33fb4e117d8433cae7609
font_01_sfnt_off0000f104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF104 5040 bytes
SHA-256: 68ca3c6a1803921557829dc810db321a959728d2d93d5c1133013a793236c23b
font_02_sfnt_off00010210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10210 11116 bytes
SHA-256: ba3b72ec0996bd2d3200543bccbcaed86ab1761114843fc707153489e196cf42