Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d03dc445a87cd29…

MALICIOUS

PDF

66.7 KB Created: 2020-08-04 00:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96c08dcf77ce926e11e3cbd46b348866 SHA-1: 6b08d5e4440d377be4070814d2bfc478263cbb2d SHA-256: 2d03dc445a87cd29d7a41bc8448dcbc6c7c119b1905250e80581217a86481bf8
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Addison s disease diet pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=addison+s+disease+diet+pdf
    • http://files.cma458.com/uploads/1/3/0/7/130739704/jebiweg_nepofineva_kamojesivagarav_xiziju.pdf
    • http://files.transformativemindset.com/uploads/1/3/1/6/131637291/cee159f.pdf
    • http://files.crosleyoutdoorproducts.com/uploads/1/3/1/4/131408942/rezepezaxojeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/1844/5223/files/87137644874.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/62154868700.pdf
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/faxaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/japanese_economic_development_theory_and_practice.pdf
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/59052314532.pdf
    • https://cdn.shopify.com/s/files/1/0434/4138/9720/files/75481626212.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/fuvonujub.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/doxoridapid.pdf
    • https://cdn.shopify.com/s/files/1/0429/6438/5951/files/7248510077.pdf
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/19389364507.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/wukilegajogodimemotag.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/ridepafomudebiwefugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6906/3836/files/41029347574.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/java_script_count_down.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/56510865883.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a751.bin
da9ba3d1c1ed4e33ba5cd9dede743e83775ac0dd8d122414ae6795a033dba914
pdf-font-stream PDF embedded font (sfnt) at offset 0xA751 4896 bytes
font_01_sfnt_off0000b812.bin
0c669f6e7069a258548a9975c483c5a3d52b8e603d7bf979541d70d5e8600448
pdf-font-stream PDF embedded font (sfnt) at offset 0xB812 15452 bytes
font_02_sfnt_off0000e816.bin
49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648
pdf-font-stream PDF embedded font (sfnt) at offset 0xE816 16148 bytes