4eabb1adc035f035e010c0d0d259c683e18193f509946652ed8aa7c5d92b6a92

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21-07-2023 01:15

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General

Target

win33.exe
Size

66KB
MD5

140d24af0c2b3a18529df12dfbc5f6de
SHA1

e8db5ad2b7ffede3e41b9c3adb24f3232d764931
SHA256

4eabb1adc035f035e010c0d0d259c683e18193f509946652ed8aa7c5d92b6a92
SHA512

a2ead649f155555ec3e55800494f833d18cea68afe736807ec23b5991242928a0853e451b60894ec8e0abe8c42db341c2237007981f38f0366fd7c6ecafb7415
SSDEEP

1536:LP1Jm9HYIzX7Bm8JYCNE1dekdwxiin+tw9t6tEMY4Wq:LPb+HYmtHqCWdekyiPwgEMY4

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2260	iexplore.exe

Loads dropped DLL 1 IoCs

pid	Process
2260	iexplore.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Sun Java Security Plugin = "C:\\Users\\Admin\\AppData\\Roaming\\Java Security Plugin\\javaplugin.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows\CurrentVersion\Run\Sun Java Security Plugin = "C:\\Users\\Admin\\AppData\\Roaming\\Java Security Plugin\\javaplugin.exe"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2260	iexplore.exe
2260	iexplore.exe
2260	iexplore.exe
2260	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2260	iexplore.exe
2260	iexplore.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2260	2208	win33.exe	2
PID 2208 wrote to memory of 2260	2208	win33.exe	2
PID 2208 wrote to memory of 2260	2208	win33.exe	2
PID 2208 wrote to memory of 2260	2208	win33.exe	2
PID 2208 wrote to memory of 2260	2208	win33.exe	2
PID 2260 wrote to memory of 2652	2260	iexplore.exe	1
PID 2260 wrote to memory of 2652	2260	iexplore.exe	1
PID 2260 wrote to memory of 2652	2260	iexplore.exe	1
PID 2260 wrote to memory of 2652	2260	iexplore.exe	1
PID 2260 wrote to memory of 2652	2260	iexplore.exe	1

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
1⤵
PID:2652

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
1⤵
- Deletes itself
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2260

C:\Users\Admin\AppData\Local\Temp\win33.exe
"C:\Users\Admin\AppData\Local\Temp\win33.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\SecureDll.dll

Filesize
48KB

MD5
b5f429729f6ba45df4fc03b7b07a1fb8

SHA1
0f93258b587c8f1955de1138f0c08290e65c06df

SHA256
e41fb7878c89cc728005f3c82f7ee8c14ce27edcf4e307ddd8691f62dd5e6726

SHA512
e54fca413ac9ca30b03ba49d5b060473bd8158bd68afb867dd7309618d23add8a480eced723e042e206b58b663d852d993999c5023dcb440263ed143442ad3be

Download Submit
memory/2208-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2208-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download