Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f71aebd9ecfece…

MALICIOUS

PDF

42.4 KB Created: 2020-08-26 23:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c590c3f5c277cbef18f778b148ae525 SHA-1: 6429b8b0bb41bf8e5b5337f1c01741c21ea8e196 SHA-256: f0f71aebd9ecfece626c22731329231839d4d79386f8b2ff3399d5e576733028
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ver+prison+break+temporada+5'. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. The document body, though partially corrupted, contains the same lure text and URLs, reinforcing the malicious intent. The presence of numerous other embedded URLs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility and lure unsuspecting users.

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=ver+prison+break+temporada+5
    • http://nenuvuwut.lorenasantacruz.com/uploads/1/3/2/6/132681556/bewuviradit.pdf
    • http://mofapud.mahiora.co.nz/uploads/1/3/1/4/131437657/7080966.pdf
    • http://files.knightshalloffame.com/uploads/1/3/1/6/131606289/jugujapepubidipo.pdf
    • http://files.theartsinguthrie.org/uploads/1/3/1/4/131454916/e44b7ebd0e2275.pdf
    • https://cdn.shopify.com/s/files/1/0448/0113/0645/files/50141014413.pdf
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/80330163764.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/25663242275.pdf
    • https://cdn.shopify.com/s/files/1/0436/2777/4115/files/21178894738.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/26468975744.pdf
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/retinosis_pigmentaria.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/can_t_save_hosts_file.pdf
    • https://cdn.shopify.com/s/files/1/0439/9264/5790/files/97665592603.pdf
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/dajaxakovogakamomepe.pdf
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/36316752405.pdf
    • https://cdn.shopify.com/s/files/1/0435/5850/2563/files/boboiboy_galaxy_run_mod_android_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/tetetebagulevazu.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_off00005b72.bin
f41866fd7824ef49e5e3bb642c9617549825317c52cd1534b3c199d7d03cda25
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B72 5152 bytes
font_01_sfnt_off00006cd2.bin
cf3060a6f2fa52b08a4461b4151acd76b59435bf851bac0957c7977c8c0e918e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD2 9816 bytes
font_02_sfnt_off00008e86.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E86 4324 bytes