Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7acd8975e04e6b3…

MALICIOUS

PDF

59.5 KB Created: 2020-08-20 07:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93f29af4e15fc168c982fbdaa11ebd6e SHA-1: 93b52f9b36eb1385b0d87ce8c0abeadb2648f7ad SHA-256: b7acd8975e04e6b35b29db4bd276db521ef43a11ab19d6f1b14269b67ee02543
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text related to 'access database templates inventory' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of multiple PDF links and a malicious redirector indicates a phishing or social engineering 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=access+database+templates+inventory
    • http://files.vibrant-energies.com/uploads/1/3/0/8/130873907/nomadu.pdf
    • http://files.vankleekhillnaturesociety.org/uploads/1/3/1/1/131164351/3be2b644629bcdd.pdf
    • http://files.christianlifeupc.com/uploads/1/3/0/7/130776644/rilijuzupasukijoz.pdf
    • http://files.meanderingjourney.com/uploads/1/3/2/6/132680853/nekageziju.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/33660626726.pdf
    • https://cdn.shopify.com/s/files/1/0437/6317/1485/files/after_effects_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0437/6628/4439/files/petta_movie_annamalai_bgm.pdf
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/23517589512.pdf
    • https://cdn.shopify.com/s/files/1/0430/5436/6877/files/50643952986.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/gunuzujuwirorasi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/18286700978.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/98289060791.pdf
    • https://cdn.shopify.com/s/files/1/0433/8876/4316/files/64672285419.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/4135363946.pdf
    • https://cdn.shopify.com/s/files/1/0439/8442/1022/files/python_string_replace.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/74084400429.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/
    • https://cdn.shopify.com/s/files/1/0428/2623/60

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c30.bin
8f1c464bb84bd15a6e1ddfa5d33549f106ef90e262df8d027e0b703dbff0152d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C30 5296 bytes
font_01_sfnt_off0000ae0f.bin
c62671cd0a2cd49c2bcb22603d52e9a0b277cffe93b2e503a2495bf20c009791
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE0F 10604 bytes
font_02_sfnt_off0000d251.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xD251 4324 bytes