Malicious PDF — malware analysis report

Static analysis result for SHA-256 c91b0848917a8911…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 16:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03381bf631f121c896237f3d59cfa88f SHA-1: aa29c919acfc1f248c2ca7ed8676caca956de86e SHA-256: c91b0848917a8911525866a15e45b09c3f2f0f0beb3cfa82547eeadf40bb27f6
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a consumer reports article. The document body and heuristics indicate a phishing or scam lure, potentially aiming to harvest credentials or redirect the user to further malicious content. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm used for SEO poisoning or distributing malicious payloads.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=consumer+reports+username+password+2017
    • http://files.preferredfuturetherapy.com/uploads/1/3/0/9/130969426/lakozewabi-duvaliraga-zuzezune-dixuvi.pdf
    • http://files.wetfutures.eu/uploads/1/3/0/7/130739704/dewubi-fulave.pdf
    • http://rixudeji.freeformdanceacademy.com/uploads/1/3/1/3/131383483/lefozuf-nudekirirojitip.pdf
    • http://gapuwede.byblosdevelopers.com/uploads/1/3/0/8/130874063/53deaf482f.pdf
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/dafafuruv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/how_to_open._db_files.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/93094596221.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/zuxajiko.pdf
    • https://cdn.shopify.com/s/files/1/0451/4791/4394/files/caste_certificate_application_form_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/78060813618.pdf
    • https://cdn.shopify.com/s/files/1/0432/9252/4700/files/zuseke.pdf
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/17221802947.pdf
    • https://cdn.shopify.com/s/files/1/0437/0667/9464/files/debezu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/42103677381.pdf
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/98388715511.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_off00006613.bin
d0437209e675db0466ee505fc03267a96066d2420ec2c3cbb8468fdb9c4f302e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6613 5476 bytes
font_01_sfnt_off000078ad.bin
b1afb6bd7b38e7a5b4db1653428e35725b197d97b836afa33ac702e7b441ae3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 10072 bytes