97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-02-2024 10:53

Target

explorer.jar
Size

432KB
MD5

8ec9eb589dc78c7e0ad9c8155027a133
SHA1

f4cc5469b945ce8f4c5d266375c28f97636479ff
SHA256

97e67ac77d80d26af4897acff2a3f6075e0efe7997a67d8194e799006ed5efc9
SHA512

0044e07c000634a043aae2b9f42df7f9f1d0dba2462207663c7f0e9e322cb732b19ab0e7f1fdd653b587c0ce19f5efc93fb7e630ff3477e5e98bcb652f723a1c
SSDEEP

6144:VwhA+Jd+Z+qYYQJXELxEG1E3RjdZO8uk/VSADdEwyOygQc8axuk9:VwC+Jd+Q1hENLE3JdU8fsg5XQc8axf9

Score

7^/10

discovery

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4480 icacls.exe

pid	process
4480	icacls.exe

Drops file in Program Files directory 12 IoCs

Processes:

java.exe

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

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

java.exe

description pid process target process

PID 3464 wrote to memory of 4480 3464 java.exe icacls.exe
PID 3464 wrote to memory of 4480 3464 java.exe icacls.exe

description	pid	process	target process
PID 3464 wrote to memory of 4480	3464	java.exe	icacls.exe
PID 3464 wrote to memory of 4480	3464	java.exe	icacls.exe

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:4480

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
cbb3de08d6ac4dc9f32b4720a934dce6

SHA1
7763a8124e8471826ff64789d77ad59878f7668c

SHA256
dd71ed7e1f5b15661dde63114654ef7139c5151f3a28257525a660830beb032f

SHA512
79f1f0b954ae5a4f34eda08780928123f0a4c83f0aea1fb388ab1faf9ee3a29beec1efc3ace04eef51e9b17fa7e72567e7fe0515e9fc4b45dbc47d01aafdd1d3

Download Submit
memory/3464-4-0x0000026CA8700000-0x0000026CA9700000-memory.dmp

Filesize
16.0MB

Download
memory/3464-15-0x0000026CA8700000-0x0000026CA9700000-memory.dmp

Filesize
16.0MB

Download
memory/3464-17-0x0000026CA8980000-0x0000026CA8990000-memory.dmp

Filesize
64KB

Download
memory/3464-18-0x0000026CA8700000-0x0000026CA9700000-memory.dmp

Filesize
16.0MB

Download