c386aec50c9adc20922d419e1161d3676771140d58d0e74f71fde232c0a97d87

Analysis

max time kernel
0s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 05:45

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General

Target

3c0ae32452e5bb9d746fd5c7e86f7375.exe
Size

591KB
MD5

3c0ae32452e5bb9d746fd5c7e86f7375
SHA1

a379f1a361bf5e83f78ce9af053e4667298809aa
SHA256

c386aec50c9adc20922d419e1161d3676771140d58d0e74f71fde232c0a97d87
SHA512

88c25d9bd15227676f35a81655c5ac775c15a7fccfbe966b9e2b2ee08923716b1f40935eaa7d2148d9af836515c215ded74a25c49a550c931116693c39ec2474
SSDEEP

12288:c9Ny+YnjhYKmSllXJomvamiYZ+BOBgmp9oip3R+h+t:c3ynB5llXmmrZEeHp9oip3R

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Loads dropped DLL 1 IoCs

pid	Process
2488	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mspack.dll_xserve = "rundll32.exe \"C:\\Windows\\SysWOW64\\mspack.dll\",xserve"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mspack.dll	3c0ae32452e5bb9d746fd5c7e86f7375.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2488	1900	3c0ae32452e5bb9d746fd5c7e86f7375.exe	16
PID 1900 wrote to memory of 2488	1900	3c0ae32452e5bb9d746fd5c7e86f7375.exe	16
PID 1900 wrote to memory of 2488	1900	3c0ae32452e5bb9d746fd5c7e86f7375.exe	16

C:\Users\Admin\AppData\Local\Temp\3c0ae32452e5bb9d746fd5c7e86f7375.exe
"C:\Users\Admin\AppData\Local\Temp\3c0ae32452e5bb9d746fd5c7e86f7375.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Windows\system32\mspack.dll",install
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  PID:2488
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Windows\system32\mspack.dll",xserve
    3⤵
    PID:3188
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Windows\system32\mspack.dll",watch
    3⤵
    PID:3656

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

Replay Monitor

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Downloads

memory/1900-1-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1900-22-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1900-0-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/2488-6-0x0000000000A00000-0x0000000000B00000-memory.dmp

Filesize
1024KB

Download
memory/2488-5-0x0000000075160000-0x0000000075267000-memory.dmp

Filesize
1.0MB

Download
memory/3188-18-0x00000000024D0000-0x00000000025D0000-memory.dmp

Filesize
1024KB

Download
memory/3188-24-0x0000000075160000-0x0000000075267000-memory.dmp

Filesize
1.0MB

Download
memory/3656-11-0x0000000002CA0000-0x0000000002DA0000-memory.dmp

Filesize
1024KB

Download
memory/3656-23-0x0000000075160000-0x0000000075267000-memory.dmp

Filesize
1.0MB

Download
memory/3656-27-0x0000000002CA0000-0x0000000002DA0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads