Malicious PDF — malware analysis report

Static analysis result for SHA-256 57203d4eb4aac984…

MALICIOUS

PDF

123.4 KB Created: 2020-08-07 01:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abc6f12b2e779050edb1c6265334b3b0 SHA-1: 3741c5aed75acacb19bee47f63f4c9aff9b4a5c3 SHA-256: 57203d4eb4aac984817ef52d9e959d972228f08c6bbc753302c903e4636514be
150 Risk Score

Malware Insights

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

The PDF file was flagged as malicious due to embedded links pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=surat+yasin+dan+tahlil+arab+pdf. The document body contains garbled text and embedded URLs, suggesting it is designed to lure users into clicking the malicious link, potentially leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=surat+yasin+dan+tahlil+arab+pdf
    • http://files.lifecycleaquatics.com/uploads/1/3/0/9/130969505/4747252.pdf
    • http://files.rootedaltarministries.org/uploads/1/3/1/4/131437535/16f351e.pdf
    • http://files.jlongkandb.co.uk/uploads/1/3/1/6/131606368/da1337258866eff.pdf
    • http://files.leap-of-faith.blog/uploads/1/3/0/8/130813317/205877.pdf
    • http://files.mrsoneyscomputerlab.com/uploads/1/3/1/0/131070113/zevakugi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/sibozaxipibenosuzone.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7621/files/tufuxajexaralamuzedapexip.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1681/files/25958050779.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/1864217869.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/52553042522.pdf
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/57013982046.pdf
    • https://cdn.shopify.com/s/files/1/0429/4197/2636/files/bankersadda_hindu_di.pdf
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/53759905563.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/ielts_writing_task_2_sample_answer_band_8.pdf
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/71645179136.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/50809948562.pdf
    • https://cdn.shopify.com/s/files/1/0437/5085/0714/files/60214179318.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/soromumewasofawujigofag.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/dipakikulewefamezigop.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
stream_005_off0001a57b.bin
ef2717e3b74151f29f91f6c9320721e70b6291fec87310d781824f858cdf274b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A57B 33392 bytes
font_00_sfnt_off00016fa4.bin
efadc52a8da34812554045db873dbe75ca112f508a5453610c1d1756584c727c
pdf-font-stream PDF embedded font (sfnt) at offset 0x16FA4 5476 bytes
font_01_sfnt_off00018237.bin
c154a5d6795264edf779658b0baadaf466043df7688e58c1a84c5c51ab2ecee7
pdf-font-stream PDF embedded font (sfnt) at offset 0x18237 10328 bytes