97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9

Target

Install.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
200	Install.tmp
2672	Ultra.exe
3808	ultramediaburner.exe
2100	ultramediaburner.tmp
3864	SHaepaesapaha.exe
944	Corybowofa.exe
2584	UltraMediaBurner.exe

Loads dropped DLL 1 IoCs

pid	Process
200	Install.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)\\Windows Multimedia Platform\\Sojunovaega.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 Mail\PXCHSQMLAS\ultramediaburner.exe.config	Ultra.exe
File opened for modification	C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe	ultramediaburner.tmp
File created	C:\Program Files (x86)\UltraMediaBurner\unins000.dat	ultramediaburner.tmp
File created	C:\Program Files (x86)\UltraMediaBurner\is-N0G54.tmp	ultramediaburner.tmp
File created	C:\Program Files (x86)\UltraMediaBurner\is-QV09P.tmp	ultramediaburner.tmp
File created	C:\Program Files (x86)\Windows Multimedia Platform\Sojunovaega.exe	Ultra.exe
File created	C:\Program Files (x86)\Windows Multimedia Platform\Sojunovaega.exe.config	Ultra.exe
File opened for modification	C:\Program Files (x86)\UltraMediaBurner\unins000.dat	ultramediaburner.tmp
File created	C:\Program Files\Windows Mail\PXCHSQMLAS\ultramediaburner.exe	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
2100	ultramediaburner.tmp
2100	ultramediaburner.tmp
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe
944	Corybowofa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	Ultra.exe
Token: SeDebugPrivilege	944	Corybowofa.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2100	ultramediaburner.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 200	1016	Install.exe	74
PID 1016 wrote to memory of 200	1016	Install.exe	74
PID 1016 wrote to memory of 200	1016	Install.exe	74
PID 200 wrote to memory of 2672	200	Install.tmp	77
PID 200 wrote to memory of 2672	200	Install.tmp	77
PID 2672 wrote to memory of 3808	2672	Ultra.exe	80
PID 2672 wrote to memory of 3808	2672	Ultra.exe	80
PID 2672 wrote to memory of 3808	2672	Ultra.exe	80
PID 3808 wrote to memory of 2100	3808	ultramediaburner.exe	82
PID 3808 wrote to memory of 2100	3808	ultramediaburner.exe	82
PID 3808 wrote to memory of 2100	3808	ultramediaburner.exe	82
PID 2672 wrote to memory of 3864	2672	Ultra.exe	83
PID 2672 wrote to memory of 3864	2672	Ultra.exe	83
PID 2672 wrote to memory of 944	2672	Ultra.exe	84
PID 2672 wrote to memory of 944	2672	Ultra.exe	84
PID 2100 wrote to memory of 2584	2100	ultramediaburner.tmp	85
PID 2100 wrote to memory of 2584	2100	ultramediaburner.tmp	85
PID 3864 wrote to memory of 1804	3864	SHaepaesapaha.exe	88
PID 3864 wrote to memory of 1804	3864	SHaepaesapaha.exe	88

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Users\Admin\AppData\Local\Temp\is-N4PEE.tmp\Install.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-N4PEE.tmp\Install.tmp" /SL5="$70050,235791,152064,C:\Users\Admin\AppData\Local\Temp\Install.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:200
- - C:\Users\Admin\AppData\Local\Temp\is-9HV3G.tmp\Ultra.exe
    "C:\Users\Admin\AppData\Local\Temp\is-9HV3G.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:2672
  - - C:\Program Files\Windows Mail\PXCHSQMLAS\ultramediaburner.exe
      "C:\Program Files\Windows Mail\PXCHSQMLAS\ultramediaburner.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3808
    - - C:\Users\Admin\AppData\Local\Temp\is-J24MQ.tmp\ultramediaburner.tmp
        
        "C:\Users\Admin\AppData\Local\Temp\is-J24MQ.tmp\ultramediaburner.tmp" /SL5="$6002E,281924,62464,C:\Program Files\Windows Mail\PXCHSQMLAS\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:2100
      - C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe
        
        "C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe" -silent -desktopShortcut -programMenu
        6⤵
        Executes dropped EXE
        
        PID:2584
  - - C:\Users\Admin\AppData\Local\Temp\44-adbef-4f5-b39a8-9f14e9c5bbd07\SHaepaesapaha.exe
      "C:\Users\Admin\AppData\Local\Temp\44-adbef-4f5-b39a8-9f14e9c5bbd07\SHaepaesapaha.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3864
    - - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        
        dw20.exe -x -s 1304
        5⤵
        
        PID:1804
  - - C:\Users\Admin\AppData\Local\Temp\49-dfc3a-dbe-764b0-bc1d0e5bacc3a\Corybowofa.exe
      "C:\Users\Admin\AppData\Local\Temp\49-dfc3a-dbe-764b0-bc1d0e5bacc3a\Corybowofa.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:944

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/200-118-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/944-146-0x0000000002460000-0x0000000002462000-memory.dmp

Filesize
8KB

Download
memory/944-147-0x0000000002462000-0x0000000002464000-memory.dmp

Filesize
8KB

Download
memory/1016-114-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2100-141-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2584-145-0x0000000000560000-0x0000000000562000-memory.dmp

Filesize
8KB

Download
memory/2584-148-0x0000000000562000-0x0000000000564000-memory.dmp

Filesize
8KB

Download
memory/2584-150-0x0000000000565000-0x0000000000567000-memory.dmp

Filesize
8KB

Download
memory/2584-149-0x0000000000564000-0x0000000000565000-memory.dmp

Filesize
4KB

Download
memory/2672-123-0x0000000000A30000-0x0000000000A32000-memory.dmp

Filesize
8KB

Download
memory/3808-126-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3864-142-0x0000000000CE0000-0x0000000000CE2000-memory.dmp

Filesize
8KB

Download