bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4

General

Target

bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe
Size

188KB
MD5

72329d99c7ee3f21b6bd3745609f6257
SHA1

db5abe7a6da2dee62f78d09121e8207e85d323ce
SHA256

bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4
SHA512

93572d157e28364d475817ed3c89c5ef22cf5e65be7faa8246bc6403055bb2a5d592046f2bf6f8b778950ce0ba556beb4f9ff498f5bb39453ea6ae393d1550f8
SSDEEP

3072:NTmXiYnrRVfOr3ycLoM6svCYel/2jdN2T/s7kADiZG0Y/vTLfR7w0atLOUp:NTpYnnqNoMfCYewX2T/s7kKTx57Ti

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1256	System.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
468	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\301b5fcf8ce2fab8868e80b6c1f912fe.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\301b5fcf8ce2fab8868e80b6c1f912fe.exe	System.exe

Loads dropped DLL 1 IoCs

pid	Process
1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.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\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\301b5fcf8ce2fab8868e80b6c1f912fe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\301b5fcf8ce2fab8868e80b6c1f912fe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.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 1 IoCs

pid	Process
1256	System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe
Token: SeDebugPrivilege	1256	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 1256	1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe	28
PID 1404 wrote to memory of 1256	1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe	28
PID 1404 wrote to memory of 1256	1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe	28
PID 1404 wrote to memory of 1256	1404	bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe	28
PID 1256 wrote to memory of 468	1256	System.exe	29
PID 1256 wrote to memory of 468	1256	System.exe	29
PID 1256 wrote to memory of 468	1256	System.exe	29
PID 1256 wrote to memory of 468	1256	System.exe	29

C:\Users\Admin\AppData\Local\Temp\bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe
"C:\Users\Admin\AppData\Local\Temp\bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Users\Admin\AppData\Local\Temp\System.exe
  "C:\Users\Admin\AppData\Local\Temp\System.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:1256
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:468

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\System.exe

Filesize
188KB

MD5
72329d99c7ee3f21b6bd3745609f6257

SHA1
db5abe7a6da2dee62f78d09121e8207e85d323ce

SHA256
bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4

SHA512
93572d157e28364d475817ed3c89c5ef22cf5e65be7faa8246bc6403055bb2a5d592046f2bf6f8b778950ce0ba556beb4f9ff498f5bb39453ea6ae393d1550f8

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

Filesize
188KB

MD5
72329d99c7ee3f21b6bd3745609f6257

SHA1
db5abe7a6da2dee62f78d09121e8207e85d323ce

SHA256
bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4

SHA512
93572d157e28364d475817ed3c89c5ef22cf5e65be7faa8246bc6403055bb2a5d592046f2bf6f8b778950ce0ba556beb4f9ff498f5bb39453ea6ae393d1550f8

Download Submit
\Users\Admin\AppData\Local\Temp\System.exe

Filesize
188KB

MD5
72329d99c7ee3f21b6bd3745609f6257

SHA1
db5abe7a6da2dee62f78d09121e8207e85d323ce

SHA256
bcd602952153b38d9d6be3f44726bbaf92e816a49c40445f1f4f86b89569fdc4

SHA512
93572d157e28364d475817ed3c89c5ef22cf5e65be7faa8246bc6403055bb2a5d592046f2bf6f8b778950ce0ba556beb4f9ff498f5bb39453ea6ae393d1550f8

Download Submit
memory/1256-62-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/1256-64-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/1404-54-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download
memory/1404-55-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/1404-61-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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