1c943ef00e6f0f8345f26beace6561024b1e22a270cc1f8074e64eb59256a352

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 05:16

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General

Target

Attachment.jar
Size

182KB
MD5

8d234a99e59650352bee1917f1a7c748
SHA1

e9481138632e79245a72209ca7c5774755d5c71a
SHA256

1c943ef00e6f0f8345f26beace6561024b1e22a270cc1f8074e64eb59256a352
SHA512

d51ca44e11f0260d015fa8c441fa21a05b4ceee112a1772bbe06d29d6b10d4c0bcb5fa5525a37d089c75a0855a743634a906ad73ffe07c52ff84642ecfe8ba03
SSDEEP

3072:oIMN6wQI6HPZuV0Z9SDks3eU6HaZohUSHVj5F6keme3oExslzVBg:JnwUvAV0Z9Dh7V9GX4ExepK

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3336 icacls.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

java.exe

description pid process target process

PID 3988 wrote to memory of 3336 3988 java.exe icacls.exe
PID 3988 wrote to memory of 3336 3988 java.exe icacls.exe

pid	process
3336	icacls.exe

description	pid	process	target process
PID 3988 wrote to memory of 3336	3988	java.exe	icacls.exe
PID 3988 wrote to memory of 3336	3988	java.exe	icacls.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Attachment.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:3988

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:3336

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1344 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:4400

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3988-2-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-11-0x0000026D11D50000-0x0000026D11D51000-memory.dmp

Filesize
4KB

Download
memory/3988-25-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-29-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-34-0x0000026D11D50000-0x0000026D11D51000-memory.dmp

Filesize
4KB

Download
memory/3988-40-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-49-0x0000026D11D50000-0x0000026D11D51000-memory.dmp

Filesize
4KB

Download
memory/3988-53-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-73-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-81-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download
memory/3988-87-0x0000026D13620000-0x0000026D14620000-memory.dmp

Filesize
16.0MB

Download