Malicious PDF — malware analysis report

Static analysis result for SHA-256 2412ae2d01e99b3c…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 23:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 498366fc89e9b5307924738ffb1b3945 SHA-1: b182bd7ca31ee4f8d9f93de7a721017013276439 SHA-256: 2412ae2d01e99b3c4cb25aade085ca3d6d802b9369ac4d7058f0960aeb0a2fd7
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Andhra bank application for mobile push alerts' and includes numerous embedded links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used to redirect the user to a malicious site. Another heuristic identifies a PDF link farm, suggesting the document is designed to host many external links, potentially for SEO poisoning or distributing further malicious content. The presence of these links and the payment redirection lure strongly suggest a phishing or business email compromise attack.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=andhra+bank+application+for+mobile+push+alerts+pdf
    • http://files.scimedart.com/uploads/1/3/0/9/130969151/b110273f7ad.pdf
    • http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdf
    • http://files.wailelejewelry.com/uploads/1/3/1/8/131872021/5d4a70.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/juzanudugutezi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/3552057554.pdf
    • https://cdn.shopify.com/s/files/1/0431/6708/8800/files/38535713994.pdf
    • https://cdn.shopify.com/s/files/1/0433/9643/2021/files/2072133857.pdf
    • https://cdn.shopify.com/s/files/1/0430/4204/6103/files/zusogojutaza.pdf
    • https://cdn.shopify.com/s/files/1/0432/4111/1712/files/linatimafej.pdf
    • https://cdn.shopify.com/s/files/1/0437/9348/1889/files/japoziledijaxogotiropibi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdf
    • https://cdn.shopify.com/s/files/1/0438/2975/6066/files/62127422468.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/wemolanukusuzanifala.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/76764918077.pdf
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/81236666424.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/18850919150.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/fofimusezokivamelilejavu.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_off00006645.bin
df8770c6985b5c81cc024a7e68871c937dbad5405c49467062564245eee6cb36
pdf-font-stream PDF embedded font (sfnt) at offset 0x6645 5588 bytes
font_01_sfnt_off00007913.bin
288f76c8017f59641355a161edb6c0dca358f466cc7d3145d52021d43aed21c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7913 10284 bytes