Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b8b33822cab5e25…

MALICIOUS

PDF

38.7 KB Created: 2020-08-05 07:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 217ba6f1813387d3f9174d12870fa342 SHA-1: a6a52fca5fc7809ea1a5973b90d2a9eeeeba25da SHA-256: 3b8b33822cab5e25cf8baeaf540c00ede9924a00640f0dfa642631a121a564f8
130 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lure users to malicious sites. The document body, though heavily obfuscated, contains text related to 'Catalogo avon pdf 13 2020' and a URL that redirects to a malicious domain. This suggests a phishing or scam attempt disguised as a document download.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=catalogo+avon+pdf+13+2020
    • http://pibod.stoppaydayloanspa.com/uploads/1/3/1/4/131437246/menezilifug_jigir_turigepusi_zivufasituzeda.pdf
    • http://files.evanlanterman.com/uploads/1/3/2/7/132741486/7c8bffd.pdf
    • http://files.ehabacademy.com/uploads/1/3/0/9/130969065/texofuwimobow-rugokedesi-terapizoje.pdf
    • http://files.tomhall.org.uk/uploads/1/3/0/9/130969695/2270760.pdf
    • http://files.surreyhillsmusicfestival.com/uploads/1/3/1/3/131380042/jisusikomelemem-wasojuni-jojijil.pdf
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/fizemuzavabipugoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/18192906735.pdf
    • https://cdn.shopify.com/s/files/1/0438/1389/6352/files/boxovuxafinixa.pdf
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/losofidafamef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66456909559.pdf
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/koniwewelokuma.pdf
    • https://cdn.shopify.com/s/files/1/0431/2337/6277/files/fotipazegetu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9947/files/mulufopawerokojuzanewo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5483/3557/files/15992882924.pdf
    • https://cdn.shopify.com/s/files/1/0432/6703/1200/files/kanadowesorolelexurakin.pdf
    • https://cdn.shopify.com/s/files/1/0428/4180/0860/files/movizesimuvo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/78511269080.pdf
    • https://cdn.shopify.com/s/files/1/0435/9186/0383/files/5696199785.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_off000056de.bin
5b1a0ae5d959260d8326ea103b22f5fa77046437245fcb13665ec9807551a443
pdf-font-stream PDF embedded font (sfnt) at offset 0x56DE 5392 bytes
font_01_sfnt_off0000695f.bin
1c0e17e6db869c8e137b351edb10f9001cea387322e0d82a178ccc464758ccf7
pdf-font-stream PDF embedded font (sfnt) at offset 0x695F 10772 bytes