4e0ddcd303f27c01dcc8a35a9bd821c53fb7dcca474ac7f0c84d3c6451e9f778

Analysis

max time kernel
456s
max time network
1180s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
09/04/2024, 13:34

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Java Install.jar
Size 92KB
Sample240409-qvk6aabe81
SHA256 16ed7004aa68efab0eda75b3f9bff11508365a4224ef859c91f93029bc441284
MD5 c55f9247eb8ea19af96292f0893f86b5
SHA1 bd5e6884b8151114af7e45a92525893f4d2aaabd
SHA512 3efab4ee9e3c9d81efd4e2f164c0a2ae72f688cbd0068cc44a063bf4787ba65b8d2a644ac2f7704fbd059d0ba96665aeff46c2bfba820fb42df06eea7e87ccdb
SSDEEP 1536:QL/61A/qP1+9Qc1+jxjciQnGSzPsRBo0fpL9mjMT8mMhe3gnHGvPvxKpjHr9Uy:QLn/qP1CQpjEGyP0Bxf99mYTX3gmvKLn
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
2548	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\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
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\server\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\server\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

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 2548	4740	java.exe	77
PID 4740 wrote to memory of 2548	4740	java.exe	77

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar "C:\Users\Admin\AppData\Local\Temp\Java Install.jar"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4740
- 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:2548

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

Loading Replay Monitor...

Downloads

3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 5e1b8048b56532520adbe2e83a504f4ed79ff45305b67b2f17e382bb36f5da32
MD5 f01a0c494c6ecf572807af96baaf5863
SHA1 b9727145c7f2bcd15dc5f64e24916cb249fb49c0
SHA512 44abd61ec9c98fe27d041dbbd93803ce4ea54af87e0adb65548a4387efb81409bfadc7dca6fd3fd5fa4990f306665543edfd240edc5a88e8c9af94ed562d7669
MD5 SHA1 SHA512

Submit Download

memory/4740-32-0x0000026537E50000-0x0000026537E60000-memory.dmp

Download

memory/4740-12-0x0000026536320000-0x0000026536321000-memory.dmp

Download

memory/4740-18-0x0000026537BC0000-0x0000026538BC0000-memory.dmp

Download

memory/4740-29-0x0000026537BC0000-0x0000026538BC0000-memory.dmp

Download

memory/4740-30-0x0000026536320000-0x0000026536321000-memory.dmp

Download

memory/4740-4-0x0000026537BC0000-0x0000026538BC0000-memory.dmp

Download

memory/4740-33-0x0000026537EB0000-0x0000026537EC0000-memory.dmp

Download

memory/4740-34-0x0000026537E60000-0x0000026537E70000-memory.dmp

Download

memory/4740-35-0x0000026537E70000-0x0000026537E80000-memory.dmp

Download

memory/4740-36-0x0000026537E80000-0x0000026537E90000-memory.dmp

Download

memory/4740-37-0x0000026537EA0000-0x0000026537EB0000-memory.dmp

Download

memory/4740-38-0x0000026537BC0000-0x0000026538BC0000-memory.dmp

Download

memory/4740-39-0x0000026537EC0000-0x0000026537ED0000-memory.dmp

Download

memory/4740-40-0x0000026537BC0000-0x0000026538BC0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads