8f7684eed8707df29772df1285232df84d2e9be814aced65f3f02c7770632988

Analysis

max time kernel
140s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29-12-2023 20:30

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General

Target

032e8fced2fbed146c30a47d4989804b.dll
Size

23KB
MD5

032e8fced2fbed146c30a47d4989804b
SHA1

e50d6616f24459d32d0c3d14ce3a84b4c8a87758
SHA256

8f7684eed8707df29772df1285232df84d2e9be814aced65f3f02c7770632988
SHA512

b4bb303763620638afb128c346d39b610263418c2f818742483ff5b58412d3a0f5c6e1b6550988733271c6187663c1677167e87b8191802f6d72c7f02049f2fa
SSDEEP

384:Mu9l+WYg9NBGLJqFazq8yIG2WYEI6MyT2Muw+y4445D3Z1zu3fmrE2i8WQQW:MG3ByPAIVZOuwH4H5D3q3fmrcG

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\scandisk.dll	rundll32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\scandisk.lnk	rundll32.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\calc = "rundll32.exe C:\\Windows\\system32\\calc.dll,_IWMPEvents@0"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\calc = "rundll32.exe C:\\Users\\Admin\\ntuser.dll,_IWMPEvents@0"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\calc.dll	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2288	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14
PID 1052 wrote to memory of 2288	1052	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\032e8fced2fbed146c30a47d4989804b.dll,#1
1⤵
- Drops startup file
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:2288

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\032e8fced2fbed146c30a47d4989804b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1052

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\scandisk.dll

Filesize
23KB

MD5
032e8fced2fbed146c30a47d4989804b

SHA1
e50d6616f24459d32d0c3d14ce3a84b4c8a87758

SHA256
8f7684eed8707df29772df1285232df84d2e9be814aced65f3f02c7770632988

SHA512
b4bb303763620638afb128c346d39b610263418c2f818742483ff5b58412d3a0f5c6e1b6550988733271c6187663c1677167e87b8191802f6d72c7f02049f2fa

Download Submit
memory/2288-0-0x00000000748B0000-0x00000000748C0000-memory.dmp

Filesize
64KB

Download
memory/2288-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2288-4-0x00000000748B0000-0x00000000748C0000-memory.dmp

Filesize
64KB

Download
memory/2288-1-0x00000000001F0000-0x00000000001F5000-memory.dmp

Filesize
20KB

Download
memory/2288-19-0x00000000748B0000-0x00000000748C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads