Malicious PDF — malware analysis report

Static analysis result for SHA-256 c220cec9b5f8def8…

MALICIOUS

PDF

51.2 KB Created: 2020-08-02 21:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3353b24d0486f2ae9d05f326d812e214 SHA-1: c525e08300cd5589e8a4dfe0f178054d99a5746c SHA-256: c220cec9b5f8def898b719ef297d053d821ece27795026426b8e0d38e26c661b
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Polar to rectangular calculator' and the malicious URL, suggesting a lure. The presence of numerous links and the redirector indicates a likely phishing or scam campaign aiming to lead users to malicious content.

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=polar+to+rectangular+calculator
    • http://files.scatteredsacred.com/uploads/1/3/1/3/131383931/kuxumoxeme.pdf
    • http://files.fisherroadoilsandhoney.com/uploads/1/3/1/4/131437676/8893981.pdf
    • http://files.glenagould.com/uploads/1/3/1/3/131384306/litol.pdf
    • http://files.timesharerecover.com/uploads/1/3/2/6/132696483/vojexepixuragadi.pdf
    • http://files.thrivingrelationshipslab.com/uploads/1/3/0/8/130874457/a2ae72.pdf
    • https://cdn.shopify.com/s/files/1/0432/6067/4210/files/gukoxidijerotil.pdf
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/37456306123.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/60280739938.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/53620050247.pdf
    • https://cdn.shopify.com/s/files/1/0433/8922/3066/files/jotenuvupu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/44416936486.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/47380958090.pdf
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/uncraftable_items_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0432/1542/1599/files/82002728703.pdf
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/80354684494.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7703/files/78532081919.pdf
    • https://cdn.shopify.com/s/files/1/0432/9360/6046/files/81904952645.pdf
    • https://cdn.shopify.com/s/files/1/0435/8085/0335/files/dikuteburisevufa.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/98769157280.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c72.bin
510bd2ee510ea403a21ea1e8d402321778ad77ed3ef987c80dca32676b06fe03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C72 4624 bytes
font_01_sfnt_off00006c32.bin
e48e72d74d743893053357b95a25cb6bcd0de952fa364db2c0ccd97eeb6a35a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C32 15056 bytes
font_02_sfnt_off00009c78.bin
a534b91c4ec3d8756e3a834051570443c69e75f38d6508a28567570861ffac3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C78 16080 bytes
font_03_sfnt_off0000b11d.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB11D 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.