Malicious PDF — malware analysis report

Static analysis result for SHA-256 038fd162568a7bd6…

MALICIOUS

PDF

71.9 KB Created: 2020-08-05 06:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 036063d687201b4a3a9bc0a8ca9fcbdf SHA-1: 615c8709beeeecb5bf627efbecb1210d573180a5 SHA-256: 038fd162568a7bd652c0356fc222ca3669dbf7afe8e5a05f1ec92e224d2de490
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains heuristics indicating it's a malicious redirector and an advance-fee scam lure, attempting to trick users with financial-sounding language. It embeds numerous links, including a critical one to a known malicious redirector at `https://ttraff.cc/pify?keyword=aegon+life+term+plan+pdf`. The document body, though heavily obfuscated, contains references to financial plans and URLs that are part of a link farm, suggesting an attempt to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.cc/pify?keyword=aegon+life+term+plan+pdf
    • http://files.thearamaicscriptures.com/uploads/1/3/0/8/130813781/8997320.pdf
    • http://files.thesanctuarysource.com/uploads/1/3/1/6/131606046/9710480.pdf
    • http://files.skinesteemaz.shop/uploads/1/3/1/4/131454098/zezivopixosil.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/62079825973.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/najevej.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/international_financial_management_eun_resnick.pdf
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/vizilupefodubazaga.pdf
    • https://cdn.shopify.com/s/files/1/0439/2920/6952/files/adjective_clauses_with_object_pronouns_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3782/files/jaripugatiredijimiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2880/6808/files/60293844409.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/92861705705.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/caverna_cave_farmers_rules.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/sulevosuxotokuzekeguk.pdf
    • https://cdn.shopify.com/s/files/1/0430/4083/3690/files/86549384785.pdf
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/mebixaxovobomafu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/peraworot.pdf
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/kagazifepuwupofupugemetev.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdde.bin
7d28b32e9b15fa89e7fbe3da32bd6aae3fbb2918cbc7b1ef9a2478da6b0a4e7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDDE 5172 bytes
font_01_sfnt_off0000cf5c.bin
1a235843ae0b275816b3d80961a0100f45285fc9241f32011bc02fc9ae3156fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF5C 1704 bytes
font_02_sfnt_off0000d7e9.bin
0fda85c60a4a551703526647a6a7e0c9810c5898b8b527ac7dfd2a1d7daf81dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E9 10768 bytes
font_03_sfnt_off0000fceb.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEB 16036 bytes

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