4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571

General

Target

4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe
Size

62KB
MD5

493cc7577e6b8275cacbd0da1ae159a0
SHA1

209835db07410017d31b6f1620c44cf672235349
SHA256

4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571
SHA512

c65b3272ad0bc5d3e531289801a14ce95213c88ea58a627bf53656a0756d962a9274d366310a175d81d1bb51b0dfc3e76c1be603b605419a2449a4155ac55c0d
SSDEEP

768:hwn3wd0Hs4vlHFPMDZs32B9OOPD4Se6OGtC5sytGbEgNdw/LNPQ//ZBogA8qGG:hQ/vvPM9KE9TD8xtGXNaxQZi58qGG

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
336	mx.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
572	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f45459d44f388411ade6e60a34f4b5e0.exe	mx.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f45459d44f388411ade6e60a34f4b5e0.exe	mx.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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\f45459d44f388411ade6e60a34f4b5e0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\mx.exe\" .."	mx.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f45459d44f388411ade6e60a34f4b5e0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\mx.exe\" .."	mx.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\security.config.cch.new	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\enterprisesec.config.cch.new	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.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 9 IoCs

pid	Process
1368	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe
336	mx.exe
336	mx.exe
336	mx.exe
336	mx.exe
336	mx.exe
336	mx.exe
336	mx.exe
336	mx.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe
Token: SeDebugPrivilege	336	mx.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 336	1368	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe	28
PID 1368 wrote to memory of 336	1368	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe	28
PID 1368 wrote to memory of 336	1368	4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe	28
PID 336 wrote to memory of 572	336	mx.exe	29
PID 336 wrote to memory of 572	336	mx.exe	29
PID 336 wrote to memory of 572	336	mx.exe	29

C:\Users\Admin\AppData\Local\Temp\4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe
"C:\Users\Admin\AppData\Local\Temp\4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\mx.exe
  "C:\Users\Admin\AppData\Local\Temp\mx.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:336
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\mx.exe" "mx.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:572

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\mx.exe

Filesize
62KB

MD5
493cc7577e6b8275cacbd0da1ae159a0

SHA1
209835db07410017d31b6f1620c44cf672235349

SHA256
4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571

SHA512
c65b3272ad0bc5d3e531289801a14ce95213c88ea58a627bf53656a0756d962a9274d366310a175d81d1bb51b0dfc3e76c1be603b605419a2449a4155ac55c0d

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

Filesize
62KB

MD5
493cc7577e6b8275cacbd0da1ae159a0

SHA1
209835db07410017d31b6f1620c44cf672235349

SHA256
4307d7fc22fd761ec73acd6659e75ed33026c94e6363febc628b1daa6c0ab571

SHA512
c65b3272ad0bc5d3e531289801a14ce95213c88ea58a627bf53656a0756d962a9274d366310a175d81d1bb51b0dfc3e76c1be603b605419a2449a4155ac55c0d

Download Submit
memory/336-60-0x000007FEF46B0000-0x000007FEF50D3000-memory.dmp

Filesize
10.1MB

Download
memory/336-61-0x000007FEF33D0000-0x000007FEF4466000-memory.dmp

Filesize
16.6MB

Download
memory/336-64-0x0000000001F26000-0x0000000001F45000-memory.dmp

Filesize
124KB

Download
memory/336-65-0x0000000001F26000-0x0000000001F45000-memory.dmp

Filesize
124KB

Download
memory/1368-54-0x000007FEF46B0000-0x000007FEF50D3000-memory.dmp

Filesize
10.1MB

Download
memory/1368-55-0x000007FEF33D0000-0x000007FEF4466000-memory.dmp

Filesize
16.6MB

Download
memory/1368-56-0x000007FEFC091000-0x000007FEFC093000-memory.dmp

Filesize
8KB

Download

Analysis

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