PDF malware analysis — malicious · 88d344a0c1cf63de

MALICIOUS

PDF

904.6 KB

MD5: a92a4762d4f5c02a83fa9f54121357f8 SHA-1: e6c14211762c8a91ee69bb85c276ce2707c89f81 SHA-256: 88d344a0c1cf63de0d95ef439464811a07557e1aeff92f9d7676a30a1c2a73cd

116 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing via Service T1566.003 Phishing: Phishing via Service

The sample is a PDF document that contains embedded JavaScript and exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This indicates an attempt to deliver a malicious payload by leveraging a software vulnerability. No specific malware family could be identified, and no external URLs were found to be malicious.

Heuristics 9

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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 http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xfa/promoted-desc/

Extracted artifacts 13

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `87046216f468ff022a004c6f1b2643de71a2ace822950268c7e8803523369f32`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0xD43AC	163 bytes
`embedded_file_obj0002.bin` `741130904cf17122a0a558d2152514ab50ca39f560c266697198ca04be2693c4`	pdf-embedded-file	PDF EmbeddedFile object 2 at offset 0xD449D	1596 bytes
`embedded_file_obj0003.bin` `691e6cd47e71c21b995cce15ee04bea09a31b48cbcd188f8cafb426356bba813`	pdf-embedded-file	PDF EmbeddedFile object 3 at offset 0xD4794	24975 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`embedded_file_obj0004.bin` `560dcced2df6f65386a395771a4721a00980be4d89cc752639746882322da5c3`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0xD8C0F	2518 bytes
`embedded_file_obj0005.bin` `500856001a9edb17a299f41c8b34871c12c85d56ec8eff03ef181fca24bb96b5`	pdf-embedded-file	PDF EmbeddedFile object 5 at offset 0xD8F0B	200 bytes
`embedded_file_obj0006.bin` `ce9178a56f9138f5a48e518587c7ff14b65860f1d5be3a8b76dbf047b708a4fb`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0xD8FFF	199 bytes
`embedded_file_obj0007.bin` `d04ddabff40e4cd9a4a8def00715e01bdeda6a320bf22769bebd07eb116378fa`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0xD90F2	1533 bytes
`embedded_file_obj0008.bin` `2ebdd7efeaa1190ff6bad8cbd649b313e3969564018f204e7385b97c2fab1e19`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xD93AD	80 bytes
`embedded_file_obj0009.bin` `4a60a9864cdf7382475d51051a03fdc43b32c31eb508893ccfccece34957f9f1`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0xD9456	56 bytes
`stream_002_off00000363.js` `f8721569904600df33f536ddc9f4942717077f9d6c3c4253a8f4de5650fc6531`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x363	1367 bytes
`stream_003_off00000549.js` `91ea259764c68d27b8981a339c02d8ea92224ae5c0d0cd0a7c8f3d645d599090`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x549	902 bytes
`objstm_0044_00.bin` `882dbe8f645af46cefc5e2695c3912cf111c9293da733274a1504212921b2c2d`	pdf-objstm-decoded	PDF /ObjStm 44 0 obj (inflated)	1006 bytes
`font_00_sfnt_off000d955b.bin` `3a47365ba29be93b97be381e34ec3c7ef0a10e0f82cdb3dadd6fb11f2800fdb3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD955B	36717 bytes

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