Malicious PDF — malware analysis report

Static analysis result for SHA-256 57d818786626cdab…

MALICIOUS

PDF

51.1 KB Created: 2020-08-12 22:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49ea23aa141e5d0c4dac7706e6b299c6 SHA-1: 016030727a951eb66d1fceee1621a2a4dcab3ef1 SHA-256: 57d818786626cdab8b4b6321a8950fb59c9fb309eec9e489420fa6a5fcd92918
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=lipid+profile+test+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/0858/1019/files/137208675.pdf'. The document body text, though partially corrupted, includes the lure 'Lipid profile test pdf', suggesting a social engineering pretext.

Heuristics 3

  • 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.
  • 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=lipid+profile+test+pdf
    • http://files.lighthousetransactions.com/uploads/1/3/2/7/132740485/fokom-fugaje-nozotise-kovoxenimoxi.pdf
    • http://files.brain2gain.com/uploads/1/3/2/6/132696174/zegarivuluj.pdf
    • http://files.boundlessfarmstead.com/uploads/1/3/1/6/131606492/5809037.pdf
    • http://fubedeb.wificonnectedappliance.com/uploads/1/3/1/6/131636725/difobunoloz.pdf
    • http://files.deborahrundle.com/uploads/1/3/0/9/130969577/judijib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0858/1019/files/137208675.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/88389875605.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/xorulutewuxunekejax.pdf
    • https://cdn.shopify.com/s/files/1/0429/6274/7545/files/27867878094.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/79528718421.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdf
    • https://cdn.shopify.com/s/files/1/0431/1908/3677/files/darekixiwukebejufok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/vezazuzejid.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/advanced_and_multivariate_statistical_methods_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/72586291817.pdf
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/18722332260.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/gulerewinoreruruzov.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/jiwogagoworazubinisa.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_off000079ed.bin
e7534a22b57848b132225d3366bd1b5a3fd37edf4819024fdd0ebf856faff341
pdf-font-stream PDF embedded font (sfnt) at offset 0x79ED 4448 bytes
font_01_sfnt_off0000891b.bin
7414cb3c7ab0098f434592059ed8f9799a94c397261584e00fbb4ae88a40014b
pdf-font-stream PDF embedded font (sfnt) at offset 0x891B 12464 bytes
font_02_sfnt_off0000b12f.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xB12F 4324 bytes