Malicious PDF — malware analysis report

Static analysis result for SHA-256 e711766df0c331c5…

MALICIOUS

PDF

45.9 KB Created: 2020-07-25 01:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66603739615049849214253291b40a1a SHA-1: 3bfa9b737105e2a92028e8c40640c7c43523e96b SHA-256: e711766df0c331c551a587cabd5e248584e8fcbd21aa55cf19f26a35c4775f6b
140 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure. Another heuristic indicates a large number of external PDF links, suggesting a link farm. The document body, though heavily obfuscated, contains text related to 'Rental bond lodgement form nsw online', which, combined with the malicious link, points to a phishing or scam attempt. No scripts were extracted, limiting the analysis of direct payload execution.

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=rental+bond+lodgement+form+nsw+online
    • http://files.ashlandfiredept.com/uploads/1/3/0/7/130740124/mapagugilupusigikit.pdf
    • http://files.nova-hall.com/uploads/1/3/1/1/131163723/resag_nelumufusa_gabajikevu_kakove.pdf
    • http://files.laurakmaxwell.com/uploads/1/3/1/3/131379381/2405598.pdf
    • http://files.mypeacelovelife.com/uploads/1/3/1/4/131437873/284938.pdf
    • http://files.cruizecast.com/uploads/1/3/0/7/130775982/4581045.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/lawefevikepabatonu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3404/9703/files/72087961277.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/20236380264.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/degobik.pdf
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/karagelurasasawamupugixos.pdf
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/32728957697.pdf
    • https://cdn.shopify.com/s/files/1/0434/3074/0135/files/xekave.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8679/files/73703550336.pdf
    • https://cdn.shopify.com/s/files/1/0430/6327/9767/files/37825013267.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/towemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/40864996088.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7641/files/ragumanodiduzebexa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6245/9544/files/91047313910.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_off000074f5.bin
2fd4429e174244c4e65e13414e2a1f1a9a9693e2a1b0f628721b73b460b8c3c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x74F5 5256 bytes
font_01_sfnt_off000086c8.bin
07484ede61b5a3fa00b1b4270b75b91a90bde427a0217019cad2694a8133880f
pdf-font-stream PDF embedded font (sfnt) at offset 0x86C8 10304 bytes