Malicious PDF — malware analysis report

Static analysis result for SHA-256 534b4d803b910a43…

MALICIOUS

PDF

74.8 KB Created: 2020-08-11 13:12:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94c915404a9561548cd592f8eff59db2 SHA-1: e6b8bc854a6e50ac2339aef62491cb60e01dea77 SHA-256: 534b4d803b910a43919e7528530b12b6c9d43b0daba52b660f5a0774d16741d4
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.cc/pify?keyword=kamus+bahasa+jawa+halus+pdf, which likely serves as a gateway to further malicious content. The document body is heavily obfuscated and appears to be a mix of metadata and corrupted text, but the presence of numerous external links is a strong indicator of a link farm or redirection attack.

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.cc/pify?keyword=kamus+bahasa+jawa+halus+pdf
    • http://files.a-integrity-inspections.com/uploads/1/3/2/3/132303382/majoxuxaravapixitaju.pdf
    • http://files.peelvalleyteampenning.com/uploads/1/3/2/7/132740185/vizulogijatefodawa.pdf
    • http://files.olivia-meraki.com/uploads/1/3/1/3/131380308/nawugowakatej_peluwikafal_pezikotu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/babytrend_snap_and_go_stroller.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/77711931715.pdf
    • https://cdn.shopify.com/s/files/1/0440/2338/2174/files/quenching_process_heat_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/mimemufax.pdf
    • https://cdn.shopify.com/s/files/1/0437/9741/4045/files/mebifemafexaxokukib.pdf
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/biology_textbook_9th_grade_california.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/35526655844.pdf
    • https://cdn.shopify.com/s/files/1/0432/6598/2632/files/rirofovawubarumeruvukanur.pdf
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/sivolemozetitasizolake.pdf
    • https://cdn.shopify.com/s/files/1/0430/0380/5847/files/bajopone.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/nuzukekesubasajugut.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_off0000cf06.bin
2c3637a25ce69caf0292011a8e2e19a46fb67b00fcc587ca0b8bf91fbc335d62
pdf-font-stream PDF embedded font (sfnt) at offset 0xCF06 5460 bytes
font_01_sfnt_off0000e191.bin
3c7196ad76f1aacae65fe6b8ce58e3f129ba4fc0f9f118f2b8f00ccbd1f26e37
pdf-font-stream PDF embedded font (sfnt) at offset 0xE191 11972 bytes
font_02_sfnt_off000108d1.bin
ee8b8f013b6f51ea08ae5b70d5412f202f6a9076b23c75f4a41c6f6118619bdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x108D1 16340 bytes