Malicious PDF — malware analysis report

Static analysis result for SHA-256 375e60e6d5eb5cfa…

MALICIOUS

PDF

122.4 KB Created: 2020-08-09 14:03:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d50bfcb53d12f363a1de5295a6ff89ce SHA-1: ff43b5cb5821ddbac88410d4eb848d430565ef12 SHA-256: 375e60e6d5eb5cfa889e556a0968d249c1f544d98b932e5db59ca8f5b6c36395
168 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating an attempt to lead the user to malicious content. The document body, though heavily obfuscated, contains a URL that mirrors the malicious redirector's target. The presence of a 'SE_ADVANCE_FEE_SCAM_LURE' heuristic further supports the conclusion that this is a phishing attempt designed to defraud the user, likely by directing them to a scam website or a download of further malicious content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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
  • 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.cc/pify?keyword=cambridge+english+advanced+student+s+book+pdf
    • http://files.shoplevena.com/uploads/1/3/2/7/132740930/ab3bdf4cc78.pdf
    • http://files.comoxmobilemassage.ca/uploads/1/3/0/7/130739744/174167.pdf
    • http://togazapo.otterhoundsofoheavens.com/uploads/1/3/1/4/131438641/dipexonazilala.pdf
    • http://files.thewarriorlady.com/uploads/1/3/2/7/132740564/44c38c79de.pdf
    • https://cdn.shopify.com/s/files/1/0435/6151/7217/files/wapenimi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/conclusion_de_enlaces_quimicos.pdf
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/zodijepixonerosawugumepa.pdf
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/70403902128.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/jivibaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/70714407126.pdf
    • https://cdn.shopify.com/s/files/1/0430/5190/9274/files/14983638096.pdf
    • https://cdn.shopify.com/s/files/1/0433/5661/8917/files/arnold_workout_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/1245/4560/files/tusajapegiduzimokilare.pdf
    • https://cdn.shopify.com/s/files/1/0433/3876/0342/files/rurunegotokilofe.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/kabarujidakived.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019b72.bin
73dc785ba3c189fed0e42a495a6ca474257c6c6b54ac56c3cbe01758767ffb69
pdf-font-stream PDF embedded font (sfnt) at offset 0x19B72 5736 bytes
font_01_sfnt_off0001aecd.bin
37e3557c6b54a47b949e6cccada2c37aacbb1d91da3e24131fd32350ff781f9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1AECD 14388 bytes