Malicious PDF — malware analysis report

Static analysis result for SHA-256 757c5a9f9c38e0ba…

MALICIOUS

PDF

45.1 KB Created: 2020-08-31 16:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f917b9ab8e9bcc257d66c679d99c56bf SHA-1: 94957464f612e56793b1886a3ad23c21447a4021 SHA-256: 757c5a9f9c38e0ba296409b51e5716899446b5bd238820ed396bd23db103686e
174 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Apple face id' and embeds numerous links, one of which, 'https://ttraff.com/pify?keyword=apple+face+id', is flagged as a malicious redirector. The heuristic 'SE_CALLBACK_LURE' further suggests a phishing or scam context. While no scripts were extracted, the presence of a malicious redirector and a link farm indicates an attempt to lead the user to a malicious site, likely for credential theft or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://ttraff.com/pify?keyword=apple+face+id
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/4d935e_973554a6922140cfb2910df235c2d7d6.pdf
    • https://static.usrfiles.com/ugd/08fe48_f043701934874981a7e78ed993a6fedb.pdf
    • https://static.usrfiles.com/ugd/b8c837_f08824529f9b4738bcc0c7db2681c5c1.pdf
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/tojokavoxemebapis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/latax.pdf
    • https://cdn.shopify.com/s/files/1/0440/0922/6398/files/danuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/7451/8178/files/vccv_word_list.pdf
    • https://cdn.shopify.com/s/files/1/0439/6616/9246/files/performance_appraisal_feedback_survey_questions.pdf
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/legopovegexotaginuj.pdf
    • https://cdn.shopify.com/s/files/1/0436/7243/6889/files/sotonepamemaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/7581/9927/files/jasujubigara.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/alta_trail_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/xasus.pdf
    • https://static.usrfiles.com/ugd/b8c837_c03b92a567b24e02867ff4b7cdb0cf4c.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fd95dae90df440a9214f37e675c0616.pdf
    • https://static.usrfiles.com/ugd/93c935_34f6282d895b4c25917d07766b0da2bb.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d33.bin
5b43ea6779769c799dc91c779a7cc8b4124800fe9a40ffa0b3a0b5987212ab7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D33 4864 bytes
font_01_sfnt_off00007dda.bin
f4f85b3c9f9dc6463bd963d68cce4b20e8acad427e20cfb30e7dd2582e17abba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDA 13128 bytes

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