Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9bdeccefb10b17c…

MALICIOUS

PDF

78.9 KB Created: 2021-03-03 18:38:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 12f722b4537be41723652cd185e47e5a SHA-1: 15c506680b7c5b6eb32392aec1ff310a6208b9bf SHA-256: a9bdeccefb10b17c84ba21cfcf27196b69d5bec86a40c440afe0b3379fe6000f
116 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://ponafet.ru/wix?keyword=thedailyjournal+franklin+in PDF link annotation
    • https://vefarekosisag.weebly.com/uploads/1/3/4/7/134722728/38a080cd9c79e.pdfIn PDF document text
    • https://legelopupusida.weebly.com/uploads/1/3/4/3/134350366/cc83069d9.pdfIn PDF document text
    • https://cdn.sqhk.co/nupozifulija/LSw8hew/tribal_seeds_vampire_lyrics.pdfIn PDF document text
    • https://gepadera.weebly.com/uploads/1/3/0/7/130740344/ziridukabifas_vaforizunozekaw.pdfIn PDF document text
    • https://cdn.sqhk.co/wizokawoxo/dhcjdib/votokunufadaluxave.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/bjeibYi/nutej.pdfIn PDF document text
    • http://wogivodugakovek.mygamesonline.org/fatak.pdfIn PDF document text
    • https://gilinolejokakis.weebly.com/uploads/1/3/4/6/134632374/vudumokelufenupexuga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/abdominal_hernia_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/sirakirugusife.pdfIn PDF document text
    • http://kubapesopujix.rf.gd/how_to_grow_as_a_mechanical_engineer.pdfIn PDF document text
    • http://batuzotunar.rf.gd/63669536289.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/46838226860.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/busuu_apk_indir.pdfIn PDF document text
    • http://nuxiluruzijova.epizy.com/apj_abdul_kalam_full_form_bangla.pdfIn PDF document text
    • http://gozenabuzixi.onlinewebshop.net/37522998757.pdfIn PDF document text
    • http://defipezisezujor.rf.gd/vurenoxebizome.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/angular_reactive_form_builder_disabled.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/25789886996.pdfIn PDF document text
    • http://zuputes.atwebpages.com/vizafe.pdfIn PDF document text
    • https://s3.amazonaws.com/dexodekelaseki/ableton_live_plus_crack.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF884 5008 bytes
SHA-256: 220c1af542bef29f6acbde55cfd17dc681f633779245484550997c2426c88be5
font_01_sfnt_off00010994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10994 10832 bytes
SHA-256: a437a54db9cfa4cb515a00704bbbe1fa0c2564b52464253a2f21b17234ac9c1e