Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf8c8402445fd17…

MALICIOUS

PDF

70.6 KB Created: 2020-12-24 16:57:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 44f5376d0fd0dc92bce876a7a0eb9f96 SHA-1: d056140d8cc4b75d3a4e6460ce4ea52f97609dd1 SHA-256: 7bf8c8402445fd173a7ed33249e83f21f18876d788d85fa671bbdc0ec625e00e
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that leads to a suspicious domain, suggesting it's used for phishing or to download further malware. The document body, though partially corrupted, contains text that appears to be a lure for song lyrics, aligning with common phishing tactics.

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://traffnew.ru/strik?utm_term=ghar+sansar+ma+song+lyrics PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4385633/normal_5fcc6b49c5567.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381321/normal_5fa725d99b70c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485580/normal_5fc6c1dc8cb44.pdfIn PDF document text
    • https://tapojofam.weebly.com/uploads/1/3/4/5/134518610/82e69e9c4e.pdfIn PDF document text
    • https://cdn.sqhk.co/dufadafakuti/dgfhbij/stick_warfare_blood_strike_best_weapons.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_5fa07d79a6a75.pdfIn PDF document text
    • https://bagubabijotete.weebly.com/uploads/1/3/4/3/134319258/9303630.pdfIn PDF document text
    • https://cdn.sqhk.co/wezopexa/yjjfAia/dexot.pdfIn PDF document text
    • https://cdn.sqhk.co/kuruwoke/mibNOif/roblox_promo_codes_generator_robux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4818147-2b85-41f1-84b6-75ff2da42e96/menefesixaxemexavikotex.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/bovukuwidifozowefuxipus.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/49237429841.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/backgammon_masters_apk_full.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_off0000d7fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FD 5344 bytes
SHA-256: 3b91c6e454f950143e6eee3a68ca057919fc7143b89bd7565459b7d2ae7949fe
font_01_sfnt_off0000ea0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA0A 10596 bytes
SHA-256: 6fe732129138abfdb7ce9e29b29572efa74fb8281b638a33a3e02b3a4d84ce02