Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2288bb25e575da…

MALICIOUS

PDF

88.2 KB Created: 2020-07-30 21:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32e4eb7399ed5d5a96002c926e9753b6 SHA-1: 114e5d1c71263ba9b94494391fc17bc0b311fe3d SHA-256: 3b2288bb25e575da705beece8b26d7f1d7e4a7724749c390fa01c15fe4dd2ca7
168 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a malicious redirector link and a high-confidence finding of an advance-fee scam lure. The document body, though heavily obfuscated, contains text related to 'Balance of payment project pdf', aligning with the advance-fee scam lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=balance+of+payment+project+pdf
    • http://files.drescher.photos/uploads/1/3/1/4/131438829/5145498.pdf
    • http://files.savefarthingworthgreen.org/uploads/1/3/1/6/131637896/a4885f45cd.pdf
    • http://files.eghsbandboosters.com/uploads/1/3/1/1/131163996/2637602.pdf
    • http://files.dukeengagedetroit.org/uploads/1/3/1/8/131871501/faluwis.pdf
    • http://files.cymzsweetkre8tionz.com/uploads/1/3/1/3/131383743/8758762.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tedix.pdf
    • https://cdn.shopify.com/s/files/1/0435/3212/4312/files/kagufepufuzegipedelit.pdf
    • https://cdn.shopify.com/s/files/1/0428/5677/5839/files/vugegaba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/disiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/6038/7227/files/lenakusovesosujalemuzefix.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/vigewebewuf.pdf
    • https://cdn.shopify.com/s/files/1/0436/2308/8290/files/67733790175.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/wasukubofewazenametevuti.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/74098317269.pdf
    • https://cdn.shopify.com/s/files/1/0428/5884/0223/files/81794262343.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_off00011d59.bin
c15bbbe4aca34c36a0b83303e44bd46c00306cc2fc1e9a6027344fa804541aba
pdf-font-stream PDF embedded font (sfnt) at offset 0x11D59 5088 bytes
font_01_sfnt_off00012e98.bin
3528c8b7e93093bdbb18dd854c1f76784403832d9e73cb6f8646286b20a6840b
pdf-font-stream PDF embedded font (sfnt) at offset 0x12E98 10740 bytes