Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb00d19618e02564…

MALICIOUS

PDF

44.9 KB Created: 2020-08-20 01:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8e18d326a207a777b82bae41ab2b733 SHA-1: 63bed85e70e71930f67bd8abefff6af31685852f SHA-256: fb00d19618e0256498023e2c992f6bec7e700379371b06be41ca94331afa822c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body also contains the same URL, suggesting a social engineering lure related to software downloads. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=iobit+driver+booster+5.+5
    • http://files.futuremobilitysolutions.net/uploads/1/3/1/4/131482991/nuzebebopuzit_gupif.pdf
    • http://fesegad.ianjamescarr.com/uploads/1/3/2/6/132680835/8609f782.pdf
    • http://files.sagetoseadesigns.com/uploads/1/3/0/7/130738714/dibip.pdf
    • https://cdn.shopify.com/s/files/1/0428/5349/9046/files/ff14_archaic_enchanted_ink.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/jedebame.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/majesty_worship_his_majesty_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/manedezesopiwebedugeko.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/31824107153.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/70985438527.pdf
    • https://cdn.shopify.com/s/files/1/0436/8728/0790/files/97709325328.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/fuxesekaxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2588/9442/files/bhai_ka_birthday_song_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8472/6943/files/bojekarow.pdf
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/52777610402.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/concierto_de_aranjuez_adagio_piano.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/
    • https://cdn.shopify.com/s/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000650a.bin
89939de5da80ae18bbd1ac81ad19e177a46e6ab75a20d979d7a282d08298bfa1
pdf-font-stream PDF embedded font (sfnt) at offset 0x650A 4552 bytes
font_01_sfnt_off00007497.bin
f2dd0f5bea5c463934e40440dccd0db2718b6ef6ffaa50c29462421d62383ce1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 10436 bytes
font_02_sfnt_off00009836.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9836 4324 bytes