Malicious PDF — malware analysis report

Static analysis result for SHA-256 19bd0e9aa5012ac4…

MALICIOUS

PDF

52.8 KB Created: 2020-08-10 07:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 829801f62a1465510c4de260eb760860 SHA-1: 8db10087cacf078216e7852e9f2e4f7979f91a83 SHA-256: 19bd0e9aa5012ac45d19d57a95ffa3439bd7b3b11bbfff6bfb61b592b86ec06a
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=appendicite+aigue+en+afrique+pdf'. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The PDF also contains a mass external PDF link farm, further indicating a spam or phishing campaign.

Heuristics 3

  • 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.
  • 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=appendicite+aigue+en+afrique+pdf
    • http://files.apneaodyssey.com/uploads/1/3/2/8/132814050/xozomobewigo.pdf
    • http://files.queenrena88.com/uploads/1/3/1/4/131483445/zejijufawokivawewi.pdf
    • http://files.headphonemusiclabel.com/uploads/1/3/1/4/131438471/9529404.pdf
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/maine_pyaar_kiya_songs._com.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2919/files/51913972824.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/29067442363.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/61864965558.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/12820173964.pdf
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/94555665937.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/weslo_cadence_g_5._9_treadmill_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/galivodeb.pdf
    • https://cdn.shopify.com/s/files/1/0434/7461/6473/files/11447594128.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fupibi.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/files/1/0435/1016/9759

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008026.bin
2d8f03cef14be8823248a5e185b9420b3d454274878367b290a56255909f9da6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8026 5000 bytes
font_01_sfnt_off00009129.bin
c7f1b85aa07e6cc20d620acdd5cf367e8e9e07ec5d7a5809f86236cec75e3efc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9129 11892 bytes
font_02_sfnt_off0000b685.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB685 4324 bytes

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