Malicious PDF — malware analysis report

Static analysis result for SHA-256 122e7653ea37fbad…

MALICIOUS

PDF

54.7 KB Created: 2020-08-24 08:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b97ef8202f22763de7f2536ab694663 SHA-1: f2374bab8745c9dff52436e342db9041d81dd36b SHA-256: 122e7653ea37fbad1181473415a36cfe5f3ea26380e7bf85093ec43bf41ed2f9
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used to lure victims. The document body, though partially corrupted, contains text suggesting an urgency lure related to a police department report. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm or SEO poisoning attempt to distribute malicious content.

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.
  • 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://ttraff.com/pify?keyword=san+francisco+police+department+online+report
    • http://files.americasyouthsports.com/uploads/1/3/0/7/130775665/tukisapo.pdf
    • http://files.abugslife.blog/uploads/1/3/0/8/130873838/pobulitimivimin_bepumo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/jademu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/pharmacology_ebooks_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/weduzebezewujufujuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/6215/6702/files/24318191439.pdf
    • https://cdn.shopify.com/s/files/1/0457/5248/3996/files/votusenezovaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3437/files/bipufapiwegate.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/25159488263.pdf
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/posevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/42455329142.pdf
    • https://cdn.shopify.com/s/files/1/0433/8892/8150/files/dejarexedoma.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_off00009741.bin
67cddc7fceb5f63a84cfb75ebd6087a6e160ab0f27fa7a3ba8d433411f9584e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x9741 5404 bytes
font_01_sfnt_off0000a97d.bin
1419692c84f31b8095d5175eea4050a388af9d6b20e343da96c7dab036ec0dd2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA97D 10604 bytes