PDF malware analysis — malicious · aefefd09b805f1c7

MALICIOUS

PDF

41.8 KB Created: 2020-08-06 09:14:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ff5c79c021066a6d10c463aecdde8949 SHA-1: cdb466d94c975bcc5c671e9fe2236021d9f11316 SHA-256: aefefd09b805f1c742c4aadda96846ccc0cc69204e4a9c520e88b4671fed3469

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=short+term+causes+of+ww1+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains references to the redirector URL and numerous other PDF links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=short+term+causes+of+ww1+pdf
- http://kimuxiv.roosterdaydemopolis.com/uploads/1/3/1/0/131070450/d2187559c5.pdf
- http://files.spiritbearservices.com/uploads/1/3/1/6/131637016/3bbf2775e370ab1.pdf
- http://files.holmeschan.com/uploads/1/3/2/3/132302999/617a485c44018f.pdf
- http://files.goodshepherdinoshkosh.com/uploads/1/3/0/7/130738755/wexiwexabij.pdf
- http://vuxagi.hopeofglorychristinmebriankinnett.com/uploads/1/3/0/8/130874631/94784baea9aa4.pdf
- https://cdn.shopify.com/s/files/1/0437/5468/4565/files/jimuvupazozanixol.pdf
- https://cdn.shopify.com/s/files/1/0434/0147/8300/files/poxojopexoxirub.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdf
- https://cdn.shopify.com/s/files/1/0438/5921/4501/files/vebenolamukikil.pdf
- https://cdn.shopify.com/s/files/1/0437/7988/3170/files/wolafutugobazopupar.pdf
- https://cdn.shopify.com/s/files/1/0428/5127/0823/files/bubofemut.pdf
- https://cdn.shopify.com/s/files/1/0434/1219/3438/files/35439629503.pdf
- https://cdn.shopify.com/s/files/1/0433/8932/1366/files/ssh_key_permissions.pdf
- https://cdn.shopify.com/s/files/1/0429/7628/0729/files/38762247844.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/borutazaweluv.pdf
- https://cdn.shopify.com/s/files/1/0430/2818/5239/files/31120433684.pdf
- https://cdn.shopify.com/s/files/1/0446/9764/9306/files/pwn_the_sat_math_guide.pdf
- https://cdn.shopify.com/s/files/1/0430/4578/1665/files/zasiwazaletijur.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006593.bin` `fee3cb5200f1d7f0b148b8de354958e7194d94e6f8c58b77fee3d6ff2d893c9a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6593	5608 bytes
`font_01_sfnt_off00007893.bin` `baf5ab3e9e567100fcc5b56da4bf24dd9eb4831b07e91fcea26349a76cb9c52c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7893	9928 bytes

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