cd95317ffcd0cf91eb2ce9fa6a0d062a9a1dab9fd278654b85172445873e5fcb

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 15:16

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General

Target
invoice58499.jar
Size 209KB
Sample240223-snfnbsch2z
SHA256 cd95317ffcd0cf91eb2ce9fa6a0d062a9a1dab9fd278654b85172445873e5fcb
MD5 1f1f27ded1ea733d6be70e13bb1ecd60
SHA1 d03405a17b31e3f58ab90d4cb1ee08f9ba0cf131
SHA512 e8f50c947fb25b286185bbeda4ba70b2efbb545584e8f7ab018752f7dec84b1ea3aa13f052620b8e7f2d635d4e480cd3657af71cc29c524512b4cd35879a88c4
SSDEEP 3072:jVhrFK2o50lj/H9OtNodDZawwcSHpHA1QNPmnztEHb7yR7MBprhF19AyGZV4etuc:jp7jx1fwcCg1QNPmzmKdMBnF/c42
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1800	icacls.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 1800	3268	java.exe	87
PID 3268 wrote to memory of 1800	3268	java.exe	87

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\invoice58499.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:1800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 2f12b1978fdcbf519ceefda713ddf01a5115eb85124902535e2dbf816467f18f
MD5 791827b9e1cf5f38de09d3f53ddd6215
SHA1 dfe51bac267bace45eb0557e692a3339755ebd29
SHA512 970c1b3fc35af413c1437cc09abc407eb553c1a05e14cd44e664ee8bf517dd522d78202827f43f4df4cbc3a91ea513ee8cef6d142fb90a256de11eec955f8107
MD5 SHA1 SHA512

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memory/3268-4-0x000001DD902C0000-0x000001DD912C0000-memory.dmp

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memory/3268-12-0x000001DD8E9F0000-0x000001DD8E9F1000-memory.dmp

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memory/3268-17-0x000001DD902C0000-0x000001DD912C0000-memory.dmp

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memory/3268-19-0x000001DD90540000-0x000001DD90550000-memory.dmp

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memory/3268-20-0x000001DD90550000-0x000001DD90560000-memory.dmp

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memory/3268-21-0x000001DD902C0000-0x000001DD912C0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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