Malicious PDF — malware analysis report

Static analysis result for SHA-256 70506fa3e8eac351…

MALICIOUS

PDF

72.2 KB Created: 2020-08-10 05:38:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff2c531c45e02d0a33eb05310908ba53 SHA-1: 3ef9d2d762f3333b2453f8a11760b6cb28825941 SHA-256: 70506fa3e8eac351b7e482e45d80b4c82efedd0841828c64cb161941215a8c0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a job or prize, consistent with an advance-fee scam. The presence of numerous external PDF links also suggests a link farm or SEO manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.ru/pify?keyword=railway+all+post+name+list+pdf
    • http://files.occok.org/uploads/1/3/0/8/130874296/bevivikojase.pdf
    • http://files.fluidartcreative.com/uploads/1/3/1/4/131453588/betikakivatuw-wipiga.pdf
    • http://tijiposel.myteamrunner.com/uploads/1/3/1/4/131406082/wanefu-xuzazef-fuzuverit-jagesot.pdf
    • http://files.centralcoastvolleyball.net/uploads/1/3/0/8/130813466/1575116.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/84116222666.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0957/files/97150083907.pdf
    • https://cdn.shopify.com/s/files/1/0431/6066/6274/files/rinumikijavevexizuxofemer.pdf
    • https://cdn.shopify.com/s/files/1/0429/6808/8742/files/venare.pdf
    • https://cdn.shopify.com/s/files/1/0431/5398/1589/files/51153853075.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/pekiniwibe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/supply_chain_management_ebook_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/situralisukufofaxofimem.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5408/files/88675569999.pdf
    • https://cdn.shopify.com/s/files/1/0433/8217/7946/files/vuwipabil.pdf
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/amantadina_bula.pdf
    • https://cdn.shopify.com/s/files/1/0427/4877/2519/files/rezubiwamefe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/isomerism_example.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cecd.bin
46accbad91ef77d6e2eddaaca63d6bfd589a6c3549a910d598d98145aa1350fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCECD 5080 bytes
font_01_sfnt_off0000e014.bin
01eb4f077318c7de4d9bb70be841af244cdeb96f4e3f34b1e10365cb9e05a795		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE014 10976 bytes
font_02_sfnt_off00010586.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10586 4324 bytes

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