Malicious PDF — malware analysis report

Static analysis result for SHA-256 82871ee039ddf79e…

MALICIOUS

PDF

67.7 KB Created: 2021-02-11 08:24:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: e4a3b2e933ff8447f9082fa75a93d645 SHA-1: 6d32ecd8b30e8eb713a46c5958be0842edde1d46 SHA-256: 82871ee039ddf79ecf1141fcb2b8c1973ce64945fcb6638dac476d6d07dc820c
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV detection and an ML classifier. It contains an embedded URI pointing to 'https://jottigo.ru/123?utm_term=does+accounts+receivable+increase+revenue', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a lure related to 'accounts receivable'. No scripts were extracted, but the presence of external URIs in PDFs often indicates attempts to download further payloads or redirect users to malicious sites.

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://jottigo.ru/123?utm_term=does+accounts+receivable+increase+revenue PDF link annotation
    • https://cdn.sqhk.co/sizebadit/EgfBl97/28404289999.pdfIn PDF document text
    • https://cdn.sqhk.co/gagobuniponi/iOcOKjj/go_longhorns_gif.pdfIn PDF document text
    • http://harmony-market.ru/voyages_in_english5eteh.pdfIn PDF document text
    • https://cdn.sqhk.co/murafabu/jibgchc/pandora_x_star_wars_mexico.pdfIn PDF document text
    • https://cdn.sqhk.co/xamizine/iociche/71959426423.pdfIn PDF document text
    • https://cdn.sqhk.co/sirezozere/hcjdiby/55183477748.pdfIn PDF document text
    • http://freshremont.com/jujinuzdvg9m.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://s3.amazonaws.com/dugibabafod/jiliwofewelavugome.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/31223389886.pdfIn PDF document text
    • http://wagimaparojova.epizy.com/best_beat_making_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/28347617409.pdfIn PDF document text
    • http://jasosuwer.epizy.com/chsl_2019_form_date.pdfIn PDF document text
    • http://xobiluwova.epizy.com/new_aadhaar_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/imf_report_on_myanmar.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/wudemowijosajan.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/ssc_chsl_2017-_18_answer_key.pdfIn PDF document text
    • http://daraxelasapok.rf.gd/guidecraft_jr._rainbow_block_20_piece_set.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_off0000c318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC318 4876 bytes
SHA-256: 12a4d75c3db006b31cf4838627f13ea7f175d670170e63a27dc9f6a97813f044
font_01_sfnt_off0000d3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BE 9292 bytes
SHA-256: 30a924cab476a9af835f55ac8e0282b78fa710cd01dee63d6c92878c6ab6520c
font_02_sfnt_off0000f35e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF35E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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