49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f

General

Target

49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
Size

282KB
MD5

033d49d505d4acf1eabdd90d1d12b596
SHA1

d626e26ebe19098e0ffe73a3be6449229c9d3cd3
SHA256

49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f
SHA512

d42a1282c3eea5402fcb1c1ae26cbed194b7c1775faf56c9fec92b61c25ab627438eb007fdffd25ac2dedded251c6ad323f8a153b74a2a9f10cf5a1811faf4b0
SSDEEP

6144:1IMYsG0EB52fG/LvDynga3Hm3271Cn0ZH3PWv+uwVYVt/GwK+GzYmtnDURdrwSkH:zEP2fG/LvDyngkDUnrgpyxr2vD3

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
524	server.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
540	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a953b55de74bc09ad95e4a44066f3040.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a953b55de74bc09ad95e4a44066f3040.exe	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a953b55de74bc09ad95e4a44066f3040 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\a953b55de74bc09ad95e4a44066f3040 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
524	server.exe
524	server.exe
524	server.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeDebugPrivilege	344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
Token: SeDebugPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe
Token: 33	524	server.exe
Token: SeIncBasePriorityPrivilege	524	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 524	344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe	28
PID 344 wrote to memory of 524	344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe	28
PID 344 wrote to memory of 524	344	49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe	28
PID 524 wrote to memory of 540	524	server.exe	29
PID 524 wrote to memory of 540	524	server.exe	29
PID 524 wrote to memory of 540	524	server.exe	29

C:\Users\Admin\AppData\Local\Temp\49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe
"C:\Users\Admin\AppData\Local\Temp\49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
282KB

MD5
033d49d505d4acf1eabdd90d1d12b596

SHA1
d626e26ebe19098e0ffe73a3be6449229c9d3cd3

SHA256
49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f

SHA512
d42a1282c3eea5402fcb1c1ae26cbed194b7c1775faf56c9fec92b61c25ab627438eb007fdffd25ac2dedded251c6ad323f8a153b74a2a9f10cf5a1811faf4b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
282KB

MD5
033d49d505d4acf1eabdd90d1d12b596

SHA1
d626e26ebe19098e0ffe73a3be6449229c9d3cd3

SHA256
49a18048871592cf80308cd440394bb0b8c7f0edf005b14b24160d579236773f

SHA512
d42a1282c3eea5402fcb1c1ae26cbed194b7c1775faf56c9fec92b61c25ab627438eb007fdffd25ac2dedded251c6ad323f8a153b74a2a9f10cf5a1811faf4b0

Download Submit
memory/344-54-0x000007FEF4170000-0x000007FEF4B93000-memory.dmp

Filesize
10.1MB

Download
memory/344-55-0x000007FEF30D0000-0x000007FEF4166000-memory.dmp

Filesize
16.6MB

Download
memory/344-56-0x000007FEFC191000-0x000007FEFC193000-memory.dmp

Filesize
8KB

Download
memory/524-60-0x000007FEF4170000-0x000007FEF4B93000-memory.dmp

Filesize
10.1MB

Download
memory/524-61-0x000007FEEE640000-0x000007FEEF6D6000-memory.dmp

Filesize
16.6MB

Download
memory/524-64-0x0000000000A56000-0x0000000000A75000-memory.dmp

Filesize
124KB

Download
memory/524-65-0x0000000000A56000-0x0000000000A75000-memory.dmp

Filesize
124KB

Download

Analysis

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