Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd533f42beca3794…

MALICIOUS

PDF

45.5 KB Created: 2020-08-04 06:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ec092a1fab45c6120c55d12eded96ea SHA-1: 1629876b68ed00bcbc4025fc2cef1cb7fa332e0f SHA-256: bd533f42beca3794f7a7f3ae04de38c40ad29f770dfe2a7d2c46a7abdc110b49
140 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. This suggests the primary intent is to lead the user to a malicious site, potentially for phishing or further malware delivery. The presence of a callback lure heuristic further supports a social engineering attack vector.

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=southwest+media+college+pdf
    • http://laxit.chris-ferrer.com/uploads/1/3/1/3/131379706/lisiriruge-mamupisala-zulofememekijar.pdf
    • http://files.krwoodworkings.com/uploads/1/3/1/8/131871894/1591208.pdf
    • http://files.sundanceretrievers.com/uploads/1/3/0/7/130740065/ea06de436e3771f.pdf
    • http://files.katherinemcdowell.net/uploads/1/3/2/6/132681062/tinamekenoj-zepizusu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/tilipus.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/sigusomekinadixegodita.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/27182285130.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/xubupuredigewigixugo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/puberukul.pdf
    • https://cdn.shopify.com/s/files/1/0435/2137/6410/files/30338925724.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/vizotulurusijajuxepavuten.pdf
    • https://cdn.shopify.com/s/files/1/0427/4877/2508/files/lazunutudu.pdf
    • https://cdn.shopify.com/s/files/1/0445/7899/6383/files/calicut_university_bcom_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/93736768490.pdf
    • https://cdn.shopify.com/s/files/1/0434/9542/4165/files/31003003466.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_off00006439.bin
f09a7632c2ad407f53b0a8620287558ab18e76299bff5d14ead5ad67fa3bc445
pdf-font-stream PDF embedded font (sfnt) at offset 0x6439 5444 bytes
font_01_sfnt_off000076df.bin
ac3613c0557b8395e5ee8f9d966120459b55638759ae353ab7ff1bb5764d723d
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DF 10496 bytes
font_02_sfnt_off00009ac9.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC9 4324 bytes