Malicious PDF — malware analysis report

Static analysis result for SHA-256 a86bccce8ef89104…

MALICIOUS

PDF

45.7 KB Created: 2020-08-08 06:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8497448f0bc4b9ec2b81b299789a602f SHA-1: 73ae7c4a311413bce5b8a81a48516b29a986395e SHA-256: a86bccce8ef8910489d059b9c0c20c61603e297a4ae818ca4367ce7ce1d25fdd
160 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious redirector. The document body, though heavily obfuscated, contains text related to trading strategies and the malicious URL, suggesting a lure for advance-fee fraud. The presence of a malicious redirector indicates an attempt to lead the user to a compromised or malicious 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.
  • 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.
  • 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=stock+swing+trading+strategies+pdf
    • http://zoninizus.vacationgypsy.info/uploads/1/3/1/8/131856917/eb8717e37.pdf
    • http://files.jmsupplyga.com/uploads/1/3/1/8/131856247/dusup.pdf
    • http://files.limopartytour.pl/uploads/1/3/0/7/130776439/wakeg-fekevoses-mojusedewu-viwukafetituzo.pdf
    • http://files.bubblelovenashville.com/uploads/1/3/2/7/132740494/dadakifedodolofeli.pdf
    • https://cdn.shop
    • https://cdn.shopify.com/s/files/1/0440/5637/9557/files/abstract_algebra_fraleigh.pdf
    • https://cdn.shopify.com/s/files/1/0432/7954/8580/files/siganubamagepixowunize.pdf
    • https://cdn.shopify.com/s/files/1/0430/6354/1913/files/64022653998.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/4213546353.pdf
    • https://cdn.shopify.com/s/files/1/0434/0904/7708/files/mastering_autocad_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/78948433283.pdf
    • https://cdn.shopify.com/s/files/1/0437/2578/3190/files/cancer_de_mama_epidemiologia_mexico_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0305/files/83710906391.pdf
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/noetic_learning_math_contest.pdf
    • https://cdn.shopify.com/s/files/1/0450/6445/4294/files/buying_a_home_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0440/6899/5224/files/mathematics_formula_of_class_12.pdf
    • https://cdn.shopify.com/s/files/1/0434/4047/2214/files/gabafubutozojoge.pdf
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/22581689671.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_off000072d3.bin
a8302f0e3debee38c549fdff194f73ac949272c11e133a1e0fc09e079c911dd8
pdf-font-stream PDF embedded font (sfnt) at offset 0x72D3 5552 bytes
font_01_sfnt_off000085e2.bin
6e8e0bab90f71e3c88aedb10b2b532030dce87de7ea6fc17e0e78e906b9dd30b
pdf-font-stream PDF embedded font (sfnt) at offset 0x85E2 10372 bytes