Malicious PDF — malware analysis report

Static analysis result for SHA-256 e218e2190c7d2611…

MALICIOUS

PDF

58.1 KB Created: 2020-08-02 20:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 990315d73dba9f19fe14849ab80c99bf SHA-1: 1708bd2a01b61f3071685802328640470bd76fbb SHA-256: e218e2190c7d2611c82b879638cc9d94baf4d2ffaa234ad6a1d8f93df2b2b514
180 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it exhibits a PDF link farm and explicitly requests sensitive recovery secrets from the user. The embedded URL 'https://ttraff.ru/pify?keyword=update+node+js' is the primary indicator of malicious redirection, likely serving as a lure to a phishing or malware distribution site.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=update+node+js
    • http://files.crystalriverpublishing.com/uploads/1/3/1/3/131381804/1447262.pdf
    • http://files.billinghurstorchestras.org/uploads/1/3/1/4/131452878/1236946.pdf
    • http://files.shineondyez.com/uploads/1/3/0/9/130968962/2615004.pdf
    • http://files.flyawaykate.com/uploads/1/3/0/8/130874317/4534322.pdf
    • http://files.cloudninecuisine.com/uploads/1/3/0/9/130969744/457f0.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/76800861447.pdf
    • https://cdn.shopify.com/s/files/1/0440/8197/1365/files/57036186655.pdf
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/fiweriweleri.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/halo_3_armor_generator.pdf
    • https://cdn.shopify.com/s/files/1/0435/3140/3413/files/us_bank_holidays_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/52214137680.pdf
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/xitimozusivaxexijedi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/28969823742.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/memodasorevonileruvo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/duledogoxazesasulilazama.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/vumudovobawilato.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_off00009981.bin
906a70752f3c2b4ff427aeba8dee52b22c06fa46f52b2280eaf9a97ef09de87c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9981 4632 bytes
font_01_sfnt_off0000a959.bin
d0244f29fe6619b1a8da7cb4d2ccabd20aac8357bea8be4ed6e505a856f72e47
pdf-font-stream PDF embedded font (sfnt) at offset 0xA959 10460 bytes
font_02_sfnt_off0000cd34.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD34 4324 bytes