Analysis Overview
SHA256
a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1
Threat Level: Likely malicious
The file a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1 was found to be: Likely malicious.
Malicious Activity Summary
Modifies AppInit DLL entries
Executes dropped EXE
Drops file in Program Files directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 00:00
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 00:00
Reported
2024-04-07 00:03
Platform
win7-20240221-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\gjsfhjk.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\gjsfhjk.exe | C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\eurgebe.dll | C:\PROGRA~3\Mozilla\gjsfhjk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1700 wrote to memory of 2612 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 1700 wrote to memory of 2612 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 1700 wrote to memory of 2612 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 1700 wrote to memory of 2612 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe
"C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {9492E525-2B16-4E65-AAD9-2D5B0F235069} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\gjsfhjk.exe
C:\PROGRA~3\Mozilla\gjsfhjk.exe -tuxiydl
Network
Files
memory/1632-0-0x0000000000400000-0x0000000000427000-memory.dmp
memory/1632-1-0x0000000000250000-0x00000000002AB000-memory.dmp
memory/1632-7-0x0000000000400000-0x0000000000427000-memory.dmp
C:\PROGRA~3\Mozilla\gjsfhjk.exe
| MD5 | 3e95480efa3aaa7cf693a1159a5b7c28 |
| SHA1 | 92995ab5d90c382891e1faee1229dd45340acf6f |
| SHA256 | 350f5f1da67631d40c237a61834333dc46948d40721db83cf5aad00ceed7e9c3 |
| SHA512 | dd57cb9c0862cedbd28f0f757e406f2ac96c630479964c4bb943f0fee27c2fe110eab4416473124e047e687237e85bc32e8f32ee93b9761c4b01363ce908a287 |
memory/2612-10-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2612-11-0x0000000000D40000-0x0000000000D9B000-memory.dmp
memory/2612-17-0x0000000000400000-0x0000000000427000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 00:00
Reported
2024-04-07 00:03
Platform
win10v2004-20240226-en
Max time kernel
112s
Max time network
162s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\xrwomfe.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\xblkzla.dll | C:\PROGRA~3\Mozilla\xrwomfe.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\xrwomfe.exe | C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe
"C:\Users\Admin\AppData\Local\Temp\a4c9765694c14c76a16840d6d85733007009e6b0f34fc496411ae50fbe2e18b1.exe"
C:\PROGRA~3\Mozilla\xrwomfe.exe
C:\PROGRA~3\Mozilla\xrwomfe.exe -cybdupc
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=3700 --field-trial-handle=2284,i,2771196087253062161,8107167670425198948,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
Files
memory/2604-0-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2604-1-0x0000000002190000-0x00000000021EB000-memory.dmp
memory/2604-7-0x0000000000400000-0x0000000000427000-memory.dmp
C:\ProgramData\Mozilla\xrwomfe.exe
| MD5 | 0566d7fd717b1e45599c756e8b8a2a1e |
| SHA1 | a6730354db4be56454caa57451a76dc8cca9a701 |
| SHA256 | 1d5fd5f192bab062be835765dfc3b836e734de13ba3ef1579cd8726bfad90b65 |
| SHA512 | 65b9ecb4ac0e537e1d3e799ffee780341c079ff4cc6a401be20a37f80a3624b56b243d1a46f9d1f66017dc8abdddaa751795cb26f92ff3e5215f08df29a2047c |
memory/1812-10-0x0000000000400000-0x0000000000427000-memory.dmp
memory/1812-11-0x0000000000D40000-0x0000000000D9B000-memory.dmp
memory/1812-17-0x0000000000400000-0x0000000000427000-memory.dmp