Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d01bc8eb7d9a142…

MALICIOUS

PDF

62.1 KB Created: 2020-08-05 03:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9eac5bfa663c090910c7716ea63e9f7b SHA-1: 280255648d258765599110a79fe839da940c8de4 SHA-256: 1d01bc8eb7d9a142e86f6ba92fe8d33ec0769fe77b587f832e9a646d65175829
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead the user to a malicious site. The document body, though heavily obfuscated, contains the malicious URL and references to 'current affairs', suggesting a lure for a scam or phishing attempt. The presence of numerous external PDF links further supports the SEO link farm heuristic, likely used to disguise malicious activity.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=current+affairs+january+2020+pdf+affairs+cloud
    • http://files.a-mfoundation.com/uploads/1/3/0/7/130776081/masoxi.pdf
    • http://files.urbanafineartscenter.com/uploads/1/3/0/8/130874104/seweji_nexitatibabax_bupanolato.pdf
    • http://files.kellycrowleyrealtor.com/uploads/1/3/1/4/131453484/tirawuzutenupu-gowotukux-xatavadanodun.pdf
    • http://files.melissa-field.com/uploads/1/3/2/7/132710797/4078470.pdf
    • http://files.instepdance.ca/uploads/1/3/0/7/130775732/8462695.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/18396224744.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7085/files/free_company_profile_design.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/betajerotiraruzabexavasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/7484/5858/files/formato_para_certificado_medico.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/65678376316.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8424/files/88537584027.pdf
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/dnd_5e_dazed.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/gosowum.pdf
    • https://cdn.shopify.com/s/files/1/0434/6350/8121/files/zakitebikedibakikegesesob.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3658/files/puludokikiridagafetogikej.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1410/files/75057438833.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/92530996665.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b0cf.bin
746670dc530fbd7c439c44d4cf2297ac89adf62999c47c410aace809436dba8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0CF 5504 bytes
font_01_sfnt_off0000c3a5.bin
1bbdadef381c402f0645d6fd014038f5db993c9ecca3b4d07c67a49c1ecd96c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A5 12580 bytes

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