56c93c26d3305315c2c63442163c6f8d22a6c425013bfe9ee0007849a7f8426b

Resubmissions

16-04-2024 20:34

240416-zcl5asde61 10

16-04-2024 17:52

240416-wfp4ksge93 7

Analysis

max time kernel
234s
max time network
302s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-04-2024 20:34

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General

Target

payload.jar
Size

28KB
MD5

b504eb2fb8e625e6967e4bccad1088e8
SHA1

9ca5a29c1f66de5367c30854adb9ed173d7a3fed
SHA256

56c93c26d3305315c2c63442163c6f8d22a6c425013bfe9ee0007849a7f8426b
SHA512

c1ec4d9659f1ebc8f7fec8f85f527262856ae5eca5a9e35514b7f16ece703e19e3cdf8fae3830732fe2bfb3fef56fabc6f36487170220af3b96df7c662d64e5e
SSDEEP

768:I+DjklfoxTKo7eI18lhVzEGtD7JkLg7/swgUCQy6xGHr:I4qo4ZE8VKL8m9QZUHr

Score

7^/10

discovery

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4228	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\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\server\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\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\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\server\jvm.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 3696 wrote to memory of 4228	3696	java.exe	91
PID 3696 wrote to memory of 4228	3696	java.exe	91

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\payload.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3696
- 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:4228

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=1416 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:4660

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
97a49aefa36085b637641eea2ed6d4e4

SHA1
535060be8dd9b8b3c830797331125da530bed061

SHA256
0227318c0d2761fb02ea39e324b962483c852e48c281515e6699ffc55e143dc3

SHA512
7b0c9e80f0f57b3143283bdc15501decf90cddac61eb52e54b4b04fac863372a3ba433e658a2c56eaea88abdbb0a37d93989fec65eeb9750ab170d3823c976be

Download Submit
memory/3696-2-0x0000025937620000-0x0000025938620000-memory.dmp

Filesize
16.0MB

Download
memory/3696-12-0x0000025935FE0000-0x0000025935FE1000-memory.dmp

Filesize
4KB

Download
memory/3696-19-0x00000259378A0000-0x00000259378B0000-memory.dmp

Filesize
64KB

Download
memory/3696-20-0x0000025937620000-0x0000025938620000-memory.dmp

Filesize
16.0MB

Download
memory/3696-21-0x0000025937620000-0x0000025938620000-memory.dmp

Filesize
16.0MB

Download