Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9d2eea89ad16c90…

MALICIOUS

PDF

76.1 KB Created: 2020-08-09 06:44:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d08e22545a77db68273d3e445dd3a96 SHA-1: 9b001ee8a954c1ac6b778cff2c4e3f49a5aa1a8f SHA-256: b9d2eea89ad16c90e040672a7d635d3d08cc9c000fa70ce9658edbf53e3ceee9
160 Risk Score

Malware Insights

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

The PDF file contains a lure suggesting it is an 'annual report of nestle 2020 19 pdf'. It embeds multiple links, one of which, 'https://ttraff.cc/pify?keyword=annual+report+of+nestle+2020+19+pdf', is identified as a malicious redirector. The document also contains a large number of external PDF links, indicating a link farm, and is classified as an advance-fee scam lure. The primary attack pattern involves tricking the user into clicking the malicious link under the guise of legitimate content.

Heuristics 4

  • 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.
  • 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=annual+report+of+nestle+2020+19+pdf
    • http://files.timmietattoo.com/uploads/1/3/1/1/131164048/caf116a0ec9e.pdf
    • http://files.nurseryschoolofumc.com/uploads/1/3/1/6/131636807/b5db290.pdf
    • http://files.matthewschwartz.org/uploads/1/3/1/4/131483317/bapepomi.pdf
    • http://files.twin-cs2.org/uploads/1/3/1/3/131398076/697321c.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/56191674119.pdf
    • https://cdn.shopify.com/s/files/1/0430/9932/4567/files/94966153362.pdf
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/mofugepimubapuwitud.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/12973613156.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/vopaxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8515/8813/files/lukol.pdf
    • https://cdn.shopify.com/s/files/1/0429/8113/0394/files/60212849891.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/44884839134.pdf
    • https://cdn.shopify.com/s/files/1/0440/1466/5886/files/92485188241.pdf
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/buvumokamuledofure.pdf
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/19932973561.pdf
    • https://cdn.shopify.com/s/files/1/0445/9102/2244/files/chalk_outline_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/2844/6358/files/61027608014.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_off0000ce02.bin
d6961337c14764930fa06030a99720f1092dd29cb07c40143be0e5f50352d0c8
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE02 5504 bytes
font_01_sfnt_off0000e0c9.bin
f8e707588330cb49c10db3eea2acbeded4890e658797dbf2371cc7b2b0c21642
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C9 11428 bytes
font_02_sfnt_off000107dd.bin
164020c970c40d1233024fd4fabd32746f1e6c1b717be13f385faab8aeb453d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x107DD 17752 bytes