10a1b5b226cee52b08952890b82d0085457296eb395e8ae2f893f387a2682383

Analysis

max time kernel
145s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 19:03

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General

Target

server.jar
Size

53.4MB
MD5

de0d386ddef7efab2e6430a62799abf2
SHA1

fb6574c14251823c0378cda86c885b20442ef4b6
SHA256

10a1b5b226cee52b08952890b82d0085457296eb395e8ae2f893f387a2682383
SHA512

839d6a03371d77957fc8629d8b09131eb8fc2c22cdaa05b40f91edb24aa64241fba48c47921f005e4a2d74db9bfde4fd3e919c4e8966f206cdcca1ae6d64e4e7
SSDEEP

1572864:kAPoNdNjziV5Yg0AELWTrPsbS4XCygZa7T8MIodA:2Hi7iLRzCOdIodA

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3572	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\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\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\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\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\server\dll\ntdll.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 3572	920	java.exe	85
PID 920 wrote to memory of 3572	920	java.exe	85

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\server.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:920
- 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:3572

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

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
8942cc3ed542b694ca8e7cdf3940e1aa

SHA1
e9f61800eee58b68e4dbc907289f786909912341

SHA256
a9ed204acf5dcda7fd2617821ae8b3d704e93b4e2bf18fac69a820df12ffe628

SHA512
1c38d43be357de6c0c31898b9fc6eb34c345a02c38d0186908bfbdb82b4f1900190c12022634b6485280b3e29543e7645f950ffa24f239d7df976bf46e8fa860

Download Submit
memory/920-41-0x0000019129A00000-0x0000019129A10000-memory.dmp

Filesize
64KB

Download
memory/920-43-0x0000019129A20000-0x0000019129A30000-memory.dmp

Filesize
64KB

Download
memory/920-20-0x0000019129740000-0x000001912A740000-memory.dmp

Filesize
16.0MB

Download
memory/920-31-0x0000019129740000-0x000001912A740000-memory.dmp

Filesize
16.0MB

Download
memory/920-38-0x00000191299D0000-0x00000191299E0000-memory.dmp

Filesize
64KB

Download
memory/920-39-0x0000019129A70000-0x0000019129A80000-memory.dmp

Filesize
64KB

Download
memory/920-40-0x00000191299F0000-0x0000019129A00000-memory.dmp

Filesize
64KB

Download
memory/920-4-0x0000019129740000-0x000001912A740000-memory.dmp

Filesize
16.0MB

Download
memory/920-12-0x0000019127EC0000-0x0000019127EC1000-memory.dmp

Filesize
4KB

Download
memory/920-45-0x0000019129740000-0x000001912A740000-memory.dmp

Filesize
16.0MB

Download
memory/920-42-0x0000019129A10000-0x0000019129A20000-memory.dmp

Filesize
64KB

Download
memory/920-44-0x0000019129A30000-0x0000019129A40000-memory.dmp

Filesize
64KB

Download
memory/920-46-0x0000019129A40000-0x0000019129A50000-memory.dmp

Filesize
64KB

Download
memory/920-47-0x0000019129A50000-0x0000019129A60000-memory.dmp

Filesize
64KB

Download
memory/920-48-0x0000019129A60000-0x0000019129A70000-memory.dmp

Filesize
64KB

Download
memory/920-49-0x0000019129A80000-0x0000019129A90000-memory.dmp

Filesize
64KB

Download
memory/920-50-0x0000019129740000-0x000001912A740000-memory.dmp

Filesize
16.0MB

Download