46455d4c17db7df0ee626d487ac4ad5c0988460ae0f4c2db7847295ee25588c7

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 21:14

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General

Target

a2c3ec4f67755d54490d35200dd93e55.jar
Size

98KB
MD5

a2c3ec4f67755d54490d35200dd93e55
SHA1

8a9d2dc3e89d80d5637ff3e1397213b4ec834cb7
SHA256

46455d4c17db7df0ee626d487ac4ad5c0988460ae0f4c2db7847295ee25588c7
SHA512

8464908ba753885ca2a30c639cb8beeca09b8c14517962eec3b9995549790f97100210268df7a48c8612d9349822b43646ec6df09b3a3b7daf9e7a0224f12ba2
SSDEEP

1536:Wdl51OeweysVpVGuJD7ANc5OMsdgN1P1wIG/FfizLtxXud6hGu3M:WWeVnGuJfASsdW1qFYz/dg

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4140	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\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\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\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\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\symbols\dll\ntdll.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\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3388 wrote to memory of 4140	3388	java.exe	87
PID 3388 wrote to memory of 4140	3388	java.exe	87

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\a2c3ec4f67755d54490d35200dd93e55.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3388
- 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:4140

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

Replay Monitor

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Downloads

memory/3388-2-0x00000296C7570000-0x00000296C8570000-memory.dmp

Filesize
16.0MB

Download
memory/3388-11-0x00000296C5D40000-0x00000296C5D41000-memory.dmp

Filesize
4KB

Download
memory/3388-12-0x00000296C5D40000-0x00000296C5D41000-memory.dmp

Filesize
4KB

Download
memory/3388-20-0x00000296C7570000-0x00000296C8570000-memory.dmp

Filesize
16.0MB

Download
memory/3388-25-0x00000296C77F0000-0x00000296C7800000-memory.dmp

Filesize
64KB

Download
memory/3388-26-0x00000296C7800000-0x00000296C7810000-memory.dmp

Filesize
64KB

Download
memory/3388-27-0x00000296C7820000-0x00000296C7830000-memory.dmp

Filesize
64KB

Download
memory/3388-29-0x00000296C7570000-0x00000296C8570000-memory.dmp

Filesize
16.0MB

Download
memory/3388-31-0x00000296C7850000-0x00000296C7860000-memory.dmp

Filesize
64KB

Download
memory/3388-30-0x00000296C7840000-0x00000296C7850000-memory.dmp

Filesize
64KB

Download
memory/3388-28-0x00000296C7830000-0x00000296C7840000-memory.dmp

Filesize
64KB

Download
memory/3388-32-0x00000296C7570000-0x00000296C8570000-memory.dmp

Filesize
16.0MB

Download