PDF malware analysis — malicious · 2bba078dbed52a61

MALICIOUS

PDF

235.2 KB Created: 2010-02-23 12:29:53 -08:00

MD5: 7ec3f00414301cfe425ce93b445f48f0 SHA-1: 7daf78c9956c69f5fd6542b556afac9b95bbbf19 SHA-256: 2bba078dbed52a6158490e23901ef0335d3982a09f7b5c9916deac6fca3c8d72

254 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1190 Exploit Public-Facing Application

The sample is a PDF document that leverages CVE-2010-0188, an XFA heap spray exploit. The critical heuristic firings indicate that the document contains exploit code designed to target Adobe Reader. The PDF also contains embedded JavaScript and an embedded file, suggesting it's a dropper or exploit delivery mechanism. The presence of an image-only lure with a click-outward action further supports a phishing or social engineering attack vector.

Heuristics 11

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

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY

PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
ClamAV: Pdf.Exploit.Agent-21703 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-21703
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.
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 235 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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)
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://purl.org/dc/elements/1.1/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/pdf/1.3/
- http://www.xfa.org/schema/xci/1.0/
- http://www.xfa.org/schema/xfa-template/2.4/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 12

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0002.bin` `c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb`	pdf-embedded-file	PDF EmbeddedFile object 2 at offset 0x19FA	85 bytes
`embedded_file_obj0003.bin` `0cae1494b9c99505bf126e683a1a8be36bc8d5e793ab829e266d6e2fd62ccac3`	pdf-embedded-file	PDF EmbeddedFile object 3 at offset 0x1AAC	1466 bytes
`embedded_file_obj0004.bin` `1b57e7c1e4bc1f8daf7cdf9c6223b19580c93789063a99232ed1cb040470df13`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0x1D6B	9148 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`embedded_file_obj0005.bin` `f47c3dc8c4eeb64abc2cc332be719add15af6ce6dfdcdb477c08a1aefdbe7477`	pdf-embedded-file	PDF EmbeddedFile object 5 at offset 0x290F	11740 bytes
`embedded_file_obj0006.bin` `226eeacc5eecef2a05ca480f144ff6936594e20b5c7672e8f29f25c8bea65a56`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x2AD7	2928 bytes
`embedded_file_obj0007.bin` `4cb349134bdb5f1a1c03281df9b53128ebe947f235398a912a4f0a9f638b24d5`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0x2E44	200 bytes
`embedded_file_obj0008.bin` `d51b9fc28b592405fb598e711d1495e1421571073bc2e8542d55389768716c06`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x2F37	835 bytes
`embedded_file_obj0009.bin` `e65f1e07bc965092b3153e64a1e8777a909cc47a98c0e2a10d38c47def2e6652`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x3110	291 bytes
`stream_002_off000003e1.js` `f574e4d51594d1a8fd22e125b109b827c437aa898edc78babb62dbb93f8744f8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3E1	1532 bytes
`stream_003_off000005cc.js` `4a1aca004cf20431c9a66dce85404a6411a54d881a6c257882260ffc972a13eb`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5CC	870 bytes
`stream_008_off0000112a.bin` `8358d835225babc82acbcbbf2cb07512b8fb3772c5b46ff5956d2c6d02da8c39`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x112A	3024 bytes
`embedded_pdf_script_00034a58.bin` `964b35fd2cf89dd55c1ec763fabaa19e720fcce510e60402ad1e45eecd2754e0`	pdf-embedded-script	PDF raw stream script payload at offset 0x34A58	9163 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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