PDF malware analysis — malicious · f8d0e48dc055cf32

MALICIOUS

PDF

115.5 KB Created: 2020-09-10 19:23:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 10b88995eed1fc4a154ea1db67234476 SHA-1: c1e09d3d581bd2a7cc788127c42b2fe9ae762264 SHA-256: f8d0e48dc055cf323be3fdf61439b6f4c00c329d50568a68ac586fa52f408fcd

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a Cisco datasheet. This indicates a phishing attempt to lure users to malicious infrastructure. The PDF also hosts a large number of external PDF links, many of which point to similarly structured URLs, suggesting a link farm for SEO poisoning or further distribution.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=cisco+3850-+12s-+e+datasheet
- http://files.haliburtoncountyfoodnet.com/uploads/1/3/1/4/131406258/c59f44c9.pdf
- http://padusedif.matthewjosephtinkler.com/uploads/1/3/1/3/131379730/vojudixunebuv_ridibezevoz_vifimejese.pdf
- http://fogirizax.mitchadvent.com/uploads/1/3/1/6/131637046/tajujisokifa_gojedomobeke.pdf
- https://static.usrfiles.com/ugd/a18aa6_833b6632dea94af8a8ffbaa0a6c983b4.pdf
- https://static.usrfiles.com/ugd/ca9b0a_3ea3119e98ad410c816882d883d113c6.pdf
- https://static.usrfiles.com/ugd/2f3216_ad0367f85d4d48f79f567f291ed3a32b.pdf
- https://static.usrfiles.com/ugd/01e791_3e70118cf45f40f1b528373ac89b28a1.pdf
- https://static.usrfiles.com/ugd/f0b6b3_6a12f4f2863c44b08a063720aed3f09c.pdf
- https://static.usrfiles.com/ugd/db1da1_4245076da7164a2d800e74997b694fac.pdf
- https://static.usrfiles.com/ugd/0c41e7_6669ce5d729e411db45c732e109b2a68.pdf
- https://static.usrfiles.com/ugd/4fb05f_53ccffbdf2cd43d78cb58eb145c47116.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0001612c.bin` `4d4b5d7922973371c74c266679e74f8524dac949084144555308576ef3e300be`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1612C	5644 bytes
`font_01_sfnt_off00017473.bin` `6561a0f559ce2c7519cb1929886d82d374b4a54e88a0f2f5374edf8bdec5d44e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x17473	17612 bytes
`font_02_sfnt_off0001aaef.bin` `c71ad209d3f40f4afdf3b8818c0794654f9c838e4fd783bfde958e4624144c3c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1AAEF	16240 bytes

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