009033a7c6762dfd9f4aceab9eba3241b50491d0d3cff02ca8f6991a0814d4c8

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 04:23

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General

Target
c7adcd12631227ed62d6ab3c995eff01.jar
Size 102KB
Sample240314-ezryvacf46
SHA256 009033a7c6762dfd9f4aceab9eba3241b50491d0d3cff02ca8f6991a0814d4c8
MD5 c7adcd12631227ed62d6ab3c995eff01
SHA1 bfe1d108798004af37f8b1d8dcbc4711634cfbab
SHA512 61889433fbf01bdd71e587444ac3ca149ef0afdca1f4aa87dd97e1bb071accfa729cfa13d2c087bfbe357257f030a0ebf62dbe008183475b797f2d14d7d13a13
SSDEEP 3072:u5oRowGq8d2X2BW68jzQ8qxwXccO309FWj7:lqnqVmBL8jQm1OE90j7
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
2392	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\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\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\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 2392	5060	java.exe	91
PID 5060 wrote to memory of 2392	5060	java.exe	91

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\c7adcd12631227ed62d6ab3c995eff01.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:5060
- 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:2392

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 f30f07420722a34cb3ef0a9abe8323931df07a947c59c0770c0acbaae0e9e14e
MD5 08c38da07254d086c2dca87660b55711
SHA1 a918da86132496e48d6c3ead6e56282dc67d151c
SHA512 11e00a6db05af01a91cc2cdaf986d25e5c56d070b0042230f4e087d5f922e06bc0836d48d70d1bf01b286b0fb806dd127808713b410a6c37c0fb13f11f7b8c20
MD5 SHA1 SHA512

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memory/5060-4-0x000001A3AB9F0000-0x000001A3AC9F0000-memory.dmp

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memory/5060-15-0x000001A3AB9F0000-0x000001A3AC9F0000-memory.dmp

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memory/5060-19-0x000001A3ABC70000-0x000001A3ABC80000-memory.dmp

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memory/5060-20-0x000001A3ABC80000-0x000001A3ABC90000-memory.dmp

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memory/5060-21-0x000001A3ABC90000-0x000001A3ABCA0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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