3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b

General

Target

3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe
Size

251KB
MD5

66257a85aecf2e05f1f6c729e250a460
SHA1

2d11f10cf55b124356ea53bd1f030292b68f20ac
SHA256

3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b
SHA512

bd6e832a330efa4450622f1ee85b92dc2e7826b6f0894eb83f9242a641aea5a1603bc6e0e19ef16c20256bb5dcab86aba3116c1a0a33dd1594bd9d9cb784d69b
SSDEEP

3072:zI36iNfhv+XWwKWDzN2izzUDm6QpzJ8f2mMsfzVLmC4DGYD1VIT2U2Z:zI366+XWwKWDzTIDmDsdfz4ClY4T2U2

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
900	windows.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1864	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecc7c8c51c0850c1ec247c7fd3602f20.exe	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecc7c8c51c0850c1ec247c7fd3602f20.exe	windows.exe

Loads dropped DLL 1 IoCs

pid	Process
1200	3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ecc7c8c51c0850c1ec247c7fd3602f20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ecc7c8c51c0850c1ec247c7fd3602f20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.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 18 IoCs

pid	Process
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe
900	windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	windows.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 900	1200	3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe	27
PID 1200 wrote to memory of 900	1200	3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe	27
PID 1200 wrote to memory of 900	1200	3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe	27
PID 1200 wrote to memory of 900	1200	3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe	27
PID 900 wrote to memory of 1864	900	windows.exe	28
PID 900 wrote to memory of 1864	900	windows.exe	28
PID 900 wrote to memory of 1864	900	windows.exe	28
PID 900 wrote to memory of 1864	900	windows.exe	28

C:\Users\Admin\AppData\Local\Temp\3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe
"C:\Users\Admin\AppData\Local\Temp\3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\windows.exe
  "C:\Users\Admin\AppData\Local\Temp\windows.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:900
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1864

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\windows.exe

Filesize
251KB

MD5
66257a85aecf2e05f1f6c729e250a460

SHA1
2d11f10cf55b124356ea53bd1f030292b68f20ac

SHA256
3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b

SHA512
bd6e832a330efa4450622f1ee85b92dc2e7826b6f0894eb83f9242a641aea5a1603bc6e0e19ef16c20256bb5dcab86aba3116c1a0a33dd1594bd9d9cb784d69b

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

Filesize
251KB

MD5
66257a85aecf2e05f1f6c729e250a460

SHA1
2d11f10cf55b124356ea53bd1f030292b68f20ac

SHA256
3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b

SHA512
bd6e832a330efa4450622f1ee85b92dc2e7826b6f0894eb83f9242a641aea5a1603bc6e0e19ef16c20256bb5dcab86aba3116c1a0a33dd1594bd9d9cb784d69b

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

Filesize
251KB

MD5
66257a85aecf2e05f1f6c729e250a460

SHA1
2d11f10cf55b124356ea53bd1f030292b68f20ac

SHA256
3a24e9614c836957c0ffc670f660c63cc44117669dc6805fb2f79953728e717b

SHA512
bd6e832a330efa4450622f1ee85b92dc2e7826b6f0894eb83f9242a641aea5a1603bc6e0e19ef16c20256bb5dcab86aba3116c1a0a33dd1594bd9d9cb784d69b

Download Submit
memory/900-62-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/900-64-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/1200-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1200-60-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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