PDF malware analysis — malicious · f188baecaadb1739

MALICIOUS

PDF

100.6 KB Created: 2020-09-07 11:14:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 03a6bb1985723bd43b29e61028184169 SHA-1: 0df858e7f6f38da5865a892b4c1a6fa4f78b27ac SHA-256: f188baecaadb173971efaa201c7318648eb74d44fce6182fc41106d5ae6089b9

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure suggesting urgent action is required, which is a common social engineering tactic. It also contains a high number of embedded links, many pointing to a redirector service. The primary malicious URL identified is https://ttraff.link/pify?keyword=multi+skype+launcher+for+windows+7, which is linked to malicious redirector infrastructure. The document body itself is heavily obfuscated but contains the same URL.

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.
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.link/pify?keyword=multi+skype+launcher+for+windows+7
- https://static.usrfiles.com/ugd/5ea691_030c28b4dba44adf8bd73527bcb6370b.pdf
- https://static.usrfiles.com/ugd/1decf9_4e540a525c534507ae8eedbe982e09bf.pdf
- https://static.usrfiles.com/ugd/d32f78_553a7ea28a794084ac05b2499cfadb99.pdf
- https://static.usrfiles.com/ugd/a42eed_7b79630b519d4fefb879eec6105a64ff.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
- https://cdn.shopify.com/s/files/1/0427/5834/0774/files/kofitebonef.pdf
- https://cdn.shopify.com/s/files/1/0431/0335/5034/files/98639731070.pdf
- https://cdn.shopify.com/s/files/1/0431/6980/8548/files/abandono_afetivo_do_idoso.pdf
- https://cdn.shopify.com/s/files/1/0434/4931/9577/files/763921034.pdf
- https://cdn.shopify.com/s/files/1/0435/8550/3393/files/application_of_nanotechnology_in_environment.pdf
- https://cdn.shopify.com/s/files/1/0430/6727/7469/files/dopig.pdf
- https://cdn.shopify.com/s/files/1/0433/7234/7550/files/25893758953.pdf
- https://cdn.shopify.com/s/files/1/0465/4438/8246/files/algebra_nation_book_answer_key.pdf
- https://static.usrfiles.com/ugd/c3548c_9936890cd64f43e08e474e5463584aa7.pdf
- https://static.usrfiles.com/ugd/18f527_801cf0a747054319956500e620dbd3af.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_off00014c53.bin` `55458152104844bd4934658226e9b7f69c07aa366be132d983524c522f05b0f7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14C53	5584 bytes
`font_01_sfnt_off00015f7c.bin` `295ff01b6d2c3c5b7bbc5371c96aaa104a06c85015e787fa10570308d80f42c7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15F7C	11120 bytes

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