65fa93616cdb8c92a541dd2ad8468d6688e1b1f2606891b56db3e90fbfc9acbd

Target

Install2.exe
Size

497KB
MD5

41a5f4fd1ea7cac4aa94a87aebccfef0
SHA1

0d0abf079413a4c773754bf4fda338dc5b9a8ddc
SHA256

97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9
SHA512

5ca14bda498f26efff4e1179969b8f2c25244063c7bf25f3ec20b5cd24b5be320bbfb8b3d0b2d66f5c5b415da777a766fece5f251a4247773c6cb991417fb75f

Score

9^/10

discovery evasion persistence

Malware Config

Signatures

Checks for common network interception software 1 TTPs
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
evasion

Software Discovery
T1518
Downloads MZ/PE file

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Ultra.exe

Executes dropped EXE 7 IoCs

pid	Process
804	Install2.tmp
188	Ultra.exe
1240	ultramediaburner.exe
2200	ultramediaburner.tmp
3880	UltraMediaBurner.exe
3944	Cocyhaxoce.exe
2120	Devanytezha.exe

Loads dropped DLL 1 IoCs

pid	Process
804	Install2.tmp

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\system recover = "\"C:\\Program Files (x86)\\Microsoft.NET\\Himesydulu.exe\""	Ultra.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Defender\OPZJSQJLVP\ultramediaburner.exe	Ultra.exe
File opened for modification	C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe	ultramediaburner.tmp
File created	C:\Program Files (x86)\UltraMediaBurner\is-C7NPQ.tmp	ultramediaburner.tmp
File created	C:\Program Files (x86)\UltraMediaBurner\is-KJ6R8.tmp	ultramediaburner.tmp
File created	C:\Program Files (x86)\Microsoft.NET\Himesydulu.exe	Ultra.exe
File created	C:\Program Files\Windows Defender\OPZJSQJLVP\ultramediaburner.exe.config	Ultra.exe
File created	C:\Program Files (x86)\UltraMediaBurner\unins000.dat	ultramediaburner.tmp
File opened for modification	C:\Program Files (x86)\UltraMediaBurner\unins000.dat	ultramediaburner.tmp
File created	C:\Program Files (x86)\Microsoft.NET\Himesydulu.exe.config	Ultra.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 64 IoCs

pid	Process
2200	ultramediaburner.tmp
2200	ultramediaburner.tmp
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe
2120	Devanytezha.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	188	Ultra.exe
Token: SeDebugPrivilege	2120	Devanytezha.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2200	ultramediaburner.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 804	1852	Install2.exe	72
PID 1852 wrote to memory of 804	1852	Install2.exe	72
PID 1852 wrote to memory of 804	1852	Install2.exe	72
PID 804 wrote to memory of 188	804	Install2.tmp	77
PID 804 wrote to memory of 188	804	Install2.tmp	77
PID 188 wrote to memory of 1240	188	Ultra.exe	80
PID 188 wrote to memory of 1240	188	Ultra.exe	80
PID 188 wrote to memory of 1240	188	Ultra.exe	80
PID 1240 wrote to memory of 2200	1240	ultramediaburner.exe	81
PID 1240 wrote to memory of 2200	1240	ultramediaburner.exe	81
PID 1240 wrote to memory of 2200	1240	ultramediaburner.exe	81
PID 2200 wrote to memory of 3880	2200	ultramediaburner.tmp	83
PID 2200 wrote to memory of 3880	2200	ultramediaburner.tmp	83
PID 188 wrote to memory of 3944	188	Ultra.exe	82
PID 188 wrote to memory of 3944	188	Ultra.exe	82
PID 188 wrote to memory of 2120	188	Ultra.exe	84
PID 188 wrote to memory of 2120	188	Ultra.exe	84
PID 3944 wrote to memory of 852	3944	Cocyhaxoce.exe	88
PID 3944 wrote to memory of 852	3944	Cocyhaxoce.exe	88

C:\Users\Admin\AppData\Local\Temp\Install2.exe
"C:\Users\Admin\AppData\Local\Temp\Install2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\is-07LV0.tmp\Install2.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-07LV0.tmp\Install2.tmp" /SL5="$90058,235791,152064,C:\Users\Admin\AppData\Local\Temp\Install2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:804
- - C:\Users\Admin\AppData\Local\Temp\is-VO5V0.tmp\Ultra.exe
    "C:\Users\Admin\AppData\Local\Temp\is-VO5V0.tmp\Ultra.exe" /S /UID=burnerch1
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in Program Files directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:188
  - - C:\Program Files\Windows Defender\OPZJSQJLVP\ultramediaburner.exe
      "C:\Program Files\Windows Defender\OPZJSQJLVP\ultramediaburner.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1240
    - - C:\Users\Admin\AppData\Local\Temp\is-NKLDV.tmp\ultramediaburner.tmp
        
        "C:\Users\Admin\AppData\Local\Temp\is-NKLDV.tmp\ultramediaburner.tmp" /SL5="$B006C,281924,62464,C:\Program Files\Windows Defender\OPZJSQJLVP\ultramediaburner.exe" /VERYSILENT
        5⤵
        Executes dropped EXE
        Drops file in Program Files directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of FindShellTrayWindow
        Suspicious use of WriteProcessMemory
        
        PID:2200
      - C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe
        
        "C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe" -silent -desktopShortcut -programMenu
        6⤵
        Executes dropped EXE
        
        PID:3880
  - - C:\Users\Admin\AppData\Local\Temp\ef-21c41-566-5af8f-307879ddb2289\Cocyhaxoce.exe
      "C:\Users\Admin\AppData\Local\Temp\ef-21c41-566-5af8f-307879ddb2289\Cocyhaxoce.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3944
    - - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        
        dw20.exe -x -s 1304
        5⤵
        
        PID:852
  - - C:\Users\Admin\AppData\Local\Temp\f8-c5ebc-33e-4adb2-307e55893d1d0\Devanytezha.exe
      "C:\Users\Admin\AppData\Local\Temp\f8-c5ebc-33e-4adb2-307e55893d1d0\Devanytezha.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

Software Discovery

T1518

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/188-123-0x0000000002D80000-0x0000000002D82000-memory.dmp

Filesize
8KB

Download
memory/804-119-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1240-126-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1852-114-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2120-146-0x0000000000E00000-0x0000000000E02000-memory.dmp

Filesize
8KB

Download
memory/2120-148-0x0000000000E02000-0x0000000000E04000-memory.dmp

Filesize
8KB

Download
memory/2200-131-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/3880-147-0x00000000024E2000-0x00000000024E4000-memory.dmp

Filesize
8KB

Download
memory/3880-145-0x00000000024E0000-0x00000000024E2000-memory.dmp

Filesize
8KB

Download
memory/3880-149-0x00000000024E4000-0x00000000024E5000-memory.dmp

Filesize
4KB

Download
memory/3880-150-0x00000000024E5000-0x00000000024E7000-memory.dmp

Filesize
8KB

Download
memory/3944-144-0x00000000022A0000-0x00000000022A2000-memory.dmp

Filesize
8KB

Download