Malicious PDF — malware analysis report

Static analysis result for SHA-256 c247bfc4313085b1…

MALICIOUS

PDF

87.7 KB Created: 2020-08-21 22:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60d9d31fdf46dfad42c6b568a474a8be SHA-1: 646155459840ba7b0af753cf9861927c9f4ba061 SHA-256: c247bfc4313085b115159391526c419cbe79e7bf0d0b3b7c20ecd71f08962fe6
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=addis+ababa+population+2018+pdf'. Additionally, it exhibits a PDF link farm characteristic, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0462/1929/6922/files/proforma_for_maintaining_child_care_leave_account.pdf'. The document body, though heavily obfuscated, contains text related to 'Addis ababa population 2018 pdf', suggesting a lure to disguise the malicious intent.

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=addis+ababa+population+2018+pdf
    • http://zabewebol.danklandsaga.com/uploads/1/3/1/4/131437252/jomovelejaloteri.pdf
    • http://files.vanfiretrust.org/uploads/1/3/1/4/131453062/ae5cd5f.pdf
    • http://files.owyheeoffroadchallenge.com/uploads/1/3/1/4/131483492/rarabebinewew-luzeza.pdf
    • https://cdn.shopify.com/s/files/1/0462/1929/6922/files/proforma_for_maintaining_child_care_leave_account.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/97610345426.pdf
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/14673662291.pdf
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/icse_full_form_in_insurance.pdf
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/xirojupusudir.pdf
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/jawisubotexetoza.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/duwekivunubawewipapa.pdf
    • https://cdn.shopify.com/s/files/1/0451/7521/0133/files/most_secure_android_browser_2019.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/pitagetijeluvapi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/vudab.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/hero_bike_spare_parts_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/5032/7454/files/62077706201.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pifafesilepobusofamut.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_off0000ef68.bin
ea3b4e509bdff6967ac7f24c5a6154adfae6f7154fb02677bc81d669dea0ab45
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF68 11192 bytes
font_01_sfnt_off00010cf8.bin
60256f1330a599fef6cf184604da785a2635e39619c17372266b338be9c1969f
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF8 5588 bytes
font_02_sfnt_off0001200b.bin
5605c9c0579f26df3a7cbacbdbdd14667d31e2ab74b7ce392f365b97fbf19d13
pdf-font-stream PDF embedded font (sfnt) at offset 0x1200B 15656 bytes