Malicious PDF — malware analysis report

Static analysis result for SHA-256 069e81b06691d3b6…

MALICIOUS

PDF

74.5 KB Created: 2020-12-27 11:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 741144cfc7e4e3c5499d249c8b6e3bac SHA-1: 90a3edbac10daccbea2abea36ccc6ea7a72e36f6 SHA-256: 069e81b06691d3b6cc665f98709c355f45f88535d42272bde6da7fdf5410404f
322 Risk Score

Malware Insights

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

This PDF document is identified as malicious, impersonating Apple ID to phish for credentials. It utilizes urgency lures and directs users to a malicious redirector, likely to harvest session tokens or MFA codes. The presence of numerous embedded links, including a link farm, and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://nidegezepon.weebly.com/uploads/1/3/4/6/134650885/45313.pdf.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffmen.ru/123?utm_term=bt+notice+apk+download In PDF document text
    • https://nidegezepon.weebly.com/uploads/1/3/4/6/134650885/45313.pdfIn PDF document text
    • https://fimelaxezabu.weebly.com/uploads/1/3/4/6/134622198/loxuwebizaju.pdfIn PDF document text
    • https://rejasujewefem.weebly.com/uploads/1/3/0/7/130738882/vekurofedewuvewezoz.pdfIn PDF document text
    • https://litizabege.weebly.com/uploads/1/3/4/7/134713043/netawofa.pdfIn PDF document text
    • https://wetololat.weebly.com/uploads/1/3/4/7/134710700/d5e4c8187dca.pdfIn PDF document text
    • https://vururera.weebly.com/uploads/1/3/4/4/134493513/razufota.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/wutisigila/99260185816.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/puzijumotiwesu.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/76537957421.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/aashiqui_1990_movie_filmywap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0994484-944b-47ef-8345-1cc9418a0b4a/84697150494.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/6695617394.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/zebotinetufulipokig.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/mijedeg.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_off0000e713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE713 4996 bytes
SHA-256: d9b06f8b6f2b7cdfa613ec3a613f61191f4aa725ec3743a268aa562520dd2548
font_01_sfnt_off0000f83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83D 10784 bytes
SHA-256: 60117ec444e1b9a70774894ffd58150ed33bcec46bcbb58877d4a3067804243d