Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff532d20ca1b0b1…

MALICIOUS

PDF

69.1 KB Created: 2020-12-14 00:52:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c7f894644a045fc3a4da3b6a14c23e0e SHA-1: 8dfb7341c7064c6bd2b8affd0a53578d40f61df9 SHA-256: aff532d20ca1b0b1196316a302162d64061f3ab7c0b41b78abfddc2522da86f8
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that mimics a government form, likely to trick users into clicking it. The presence of PDF_URI and EMBEDDED_URL heuristics indicates the document's intent to redirect users to external malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/wb?keyword=barangay%20clearance%20application%20form PDF link annotation
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/balowix.pdfIn PDF document text
    • https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/6bdb36dcd923a.pdfIn PDF document text
    • https://ligekikisi.weebly.com/uploads/1/3/4/4/134492932/7100712.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2b171c8c-6761-4963-a148-18fadb5f3336/89186223321.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/16637787489.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53be8ab79f442f245f56c/t/5fd69142ab777271769677ab/1607897410846/judarepepubilituwonu.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/sokixonegokasiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bf3e0e1-e7c6-4cdf-bc20-731a74a6e0f7/triple_x_state_of_the_union_car.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ba71e9fc3622d52139a6/t/5fc25b495147b148047f42e3/1606572902392/sotunesekekitaxugi.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/yang_giving_money.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/69222567499.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c959405d5340f34b395e/t/5fcf5c85ba7003536ea9ace5/1607425157925/rocketman_1997_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/android_phone_specs_comparison.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/aitken_spence_plc_annual_report_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/sideteliroditibazonuvixi.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_off0000c4cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4CB 5096 bytes
SHA-256: cc360d958f16225250e548c05bce166e602fcb8c120c416529e879b8ff41567e
font_01_sfnt_off0000d607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD607 10244 bytes
SHA-256: 0fd165fb27f3d54aee0e39a9b9236a345a706f5a03b4ed9bc5d684d66f56aa43
font_02_sfnt_off0000f919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF919 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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