Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb705988e9b8af8c…

MALICIOUS

PDF

76.4 KB Created: 2020-12-18 23:15:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: cf876a43f84c0c9d05385f84d567e57f SHA-1: 53437f04e3876ed65ab6bf060bf4782393d29f8b SHA-256: fb705988e9b8af8c0d7ce5b5fe56e0f048356c24d450a5d649fcd92a35c782a6
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafftec.ru', which is likely the primary malicious destination. The document body, though heavily obfuscated, suggests a lure related to commodity prices, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafftec.ru/123?utm_term=the+plight+of+clownana PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379968/normal_5fb588853690a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc6606f9955c744b560c0eb/t/5fd18672ac13f65f660c451a/1607566962792/commodity_prices_definition_and_example.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/98525479557.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c48c104edf1d778017d3/t/5fc0f2a0f8cdb769c604e98e/1606480545129/piwulut.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2bd98403f5353fda1b0ca/t/5fc767dcb7521d608a459e81/1606903772465/misozezomaw.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/51087853786.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1bf9145a8629dc791d6d/1606294523136/tofu_ice_cream_recipe_the_kitchen.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f0de5bcb0228a282afe8/t/5fc153fa4f9837572010fdd6/1606505467804/2017.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/69223245233.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/92194333699.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c7bc2e537a05ef2a73ec/t/5fd10a45e3e00f656aebb4b3/1607535174075/mojikalavefezem.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5475712facd59cec9dbbd/t/5fd61caf226e9048faadf70e/1607867568651/fibonajanefililawive.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/spotify_songs_onto_usb.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc659750a2757459b082a1f/t/5fcab2c9f7b7a17f4cfb89ce/1607119562002/mobile_legends_adventure_cd_key_june_2020.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC41D 4832 bytes
SHA-256: 1630de910236015015431f784dff3425febed9bb1a13551773e3e48c95a912f1
font_01_sfnt_off0000d493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD493 8080 bytes
SHA-256: 528deffe250e854a6000aa7c1010430fc1d0e678595c5e485d13698c7249640c
font_02_sfnt_off0000eafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFB 13524 bytes
SHA-256: 5c58a76d2bebaa852ed11c55cc2183842833fa27daf0fda2ff7ce293a07c1089
font_03_sfnt_off00011647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11647 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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