Malicious PDF — malware analysis report

Static analysis result for SHA-256 391213480bf2f1fe…

MALICIOUS

PDF

98.3 KB Created: 2020-07-26 10:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d41cd23bbea13a4e06cb68394d53586 SHA-1: 5afc60486c68e976b0f74970588809d4593f6d5b SHA-256: 391213480bf2f1fe3400039b02f522889b4e3be5270d2844c2cebbc032fb33a1
168 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc', which is designed to lure users to malicious content. Additionally, a PDF link farm heuristic indicates the document is part of a larger SEO manipulation effort. The document body, though heavily obfuscated, contains text related to 'app from google play store', likely a lure to trick users into clicking the malicious link.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=app+from+google+play+store
    • http://files.fenestraglazing.co.uk/uploads/1/3/0/8/130814234/pomikijorufobufuwez.pdf
    • http://files.nogodnofear.com/uploads/1/3/0/7/130775632/347a43910ad.pdf
    • http://files.carolynnsmontessori.com/uploads/1/3/0/7/130775528/wibilokuzagifiwuxok.pdf
    • http://files.memorybengesa.org/uploads/1/3/1/0/131070561/0002bbc3f3f8.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/67161089858.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/wexuwosifetimujuluxakebi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/97047207484.pdf
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/21406805866.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/88048754989.pdf
    • https://cdn.shopify.com/s/files/1/0440/4799/0934/files/wuwixaxegipopozafozi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7300/1877/files/43196090403.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/gipokezekewet.pdf
    • https://cdn.shopify.com/s/files/1/0430/7668/1882/files/78574634136.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_off000137c7.bin
a9d44964f3e7ba18a3630ad1dbe4de55f7165b7f74f55bdd37e57f030dd52d57
pdf-font-stream PDF embedded font (sfnt) at offset 0x137C7 4944 bytes
font_01_sfnt_off000148a9.bin
89038d30fc1b8b421255a941201e0caee320ae85b76e44767e332f5c44dbdee6
pdf-font-stream PDF embedded font (sfnt) at offset 0x148A9 16344 bytes