Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa7937877635ce3…

MALICIOUS

PDF

43.6 KB Created: 2020-07-13 23:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f05f11ffb4947725c8e790522932fca SHA-1: f21a225239397430112cd3869c998200a53ef4ab SHA-256: faa7937877635ce3866eba223d5f6fb4ebf0adf14a3d4b1a1250a00e0c334018
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=the+attractor+factor+5+easy+steps+for+creating+wealth+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links to Shopify-hosted PDFs, suggesting a distribution mechanism. The document body, though heavily obfuscated, appears to be related to wealth creation, likely a lure. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=the+attractor+factor+5+easy+steps+for+creating+wealth+pdf
    • http://files.westsideyouthministry.com/uploads/1/3/1/4/131406442/5ad43697f4ba.pdf
    • http://files.washakiecd.com/uploads/1/3/0/8/130873758/wafipimokaxeka.pdf
    • http://files.jeffmacauley.com/uploads/1/3/0/8/130815664/52031a6dd22efaa.pdf
    • http://files.desertsongstudio.com/uploads/1/3/2/8/132816066/4819918.pdf
    • http://files.wests
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/39438168924.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/sazavedulewono.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/raxidowobuwi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdf
    • https://guzedaf.files.wordpress.com/2020/06/fuxuvapotixeruzev.pdf
    • https://kapomasixe.files.wordpress.com/2020/06/87454543271.pdf
    • https://xegukoramera.files.wordpress.com/2020/06/purutuwalafa.pdf
    • https://lowakosadij.files.wordpress.com/2020/07/seduf.pdf
    • https://tizemepaluw.files.wordpress.com/2020/06/zenulimiwodi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/gosubegu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/45158298800.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/21685195109.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/poxesomolenosexazamov.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/menageji.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/pakimofetofejaza.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/gamaboxolewolutu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0311/6709/files/ditosidegisilogemigerisu.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_off00006ad3.bin
16f47ec791cbae3f839c1e8592cb65fc9b254c06355d805548e967a2dce47438		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD3 5472 bytes
font_01_sfnt_off00007d82.bin
e2f780754447f429a89033d5b38f4f3ba6538589cc0b2f736e24de3627592896		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D82 10116 bytes

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