Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3a49862879069bc…

MALICIOUS

PDF

38.7 KB Created: 2020-08-11 23:50:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90260edfb55d68a0fd549e065f871b39 SHA-1: eac953fc5c82dba63a9d057513d2489a606ad796 SHA-256: b3a49862879069bc58c1febb461a88784993414b858da24067e814b6a4a280ea
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which are designed to appear as legitimate documents but redirect to a known malicious domain. The primary malicious URL identified is https://ttraff.cc/pify?keyword=mapa+turistico+antequera+pdf, which is a known redirector. The document body itself is heavily obfuscated but contains references to the malicious URL and other benign-looking PDF links, suggesting a link farm or redirection scheme.

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=mapa+turistico+antequera+pdf
    • http://limebiwu.accuniq.nl/uploads/1/3/2/3/132303382/df0d8e211ed3fb6.pdf
    • http://files.carolenglishgarner.com/uploads/1/3/1/1/131164456/e0213f46f2.pdf
    • http://files.ltartsdesign.com/uploads/1/3/0/7/130775528/vikini_nikeg_xewuvukesake.pdf
    • http://files.lubbockhaw.net/uploads/1/3/1/4/131437919/denefurap_nefixez.pdf
    • http://files.lizremphreyshowhorses.com/uploads/1/3/1/4/131453904/tabutip.pdf
    • https://cdn.shopify.com/s/files/1/0431/1056/4002/files/dream_a_little_dream_of_me_ukulele_chords.pdf
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/developmental_biology_gilbert_11th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/95257888987.pdf
    • https://cdn.shopify.com/s/files/1/0431/1983/7345/files/50482272293.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/vedotexipafegarowoxonez.pdf
    • https://cdn.shopify.com/s/files/1/0434/9709/5333/files/rejoxidaxumuleduju.pdf
    • https://cdn.shopify.com/s/files/1/0440/6001/6790/files/35026178495.pdf
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/goripezotonige.pdf
    • https://cdn.shopify.com/s/files/1/0432/9209/8726/files/6702874858.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/gunojiraminazek.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_off00004a09.bin
e9dcc4cefff8b01cb79c90eeae68f3f42659fa7aa5cb3dfb73aa1b31a3bee3b9
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A09 5128 bytes
font_01_sfnt_off00005b7b.bin
1a4af3b2d8c5d51899bbd54c7f7b5111a7862f1044aaf0a8f4ceb1bc68526365
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7B 10644 bytes
font_02_sfnt_off00007e40.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E40 4324 bytes