97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9

Target

Install.exe
Size

497KB
MD5

41a5f4fd1ea7cac4aa94a87aebccfef0
SHA1

0d0abf079413a4c773754bf4fda338dc5b9a8ddc
SHA256

97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9
SHA512

5ca14bda498f26efff4e1179969b8f2c25244063c7bf25f3ec20b5cd24b5be320bbfb8b3d0b2d66f5c5b415da777a766fece5f251a4247773c6cb991417fb75f

Score

8^/10

persistence

Malware Config

Signatures

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 6 IoCs

pid	Process
2252	Install.tmp
3140	Ultra.exe
4016	ultramediaburner.exe
2068	ultramediaburner.tmp
2128	Xyliqaebozhi.exe
3868	ZHizheliwopa.exe

Loads dropped DLL 1 IoCs

pid	Process
2252	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\\Rivavudavi.exe\""	Ultra.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
70	ip-api.com

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files\Reference Assemblies\IVKMDAGMFP\ultramediaburner.exe	Ultra.exe
File created	C:\Program Files\Reference Assemblies\IVKMDAGMFP\ultramediaburner.exe.config	Ultra.exe
File created	C:\Program Files (x86)\Windows Multimedia Platform\Rivavudavi.exe	Ultra.exe
File created	C:\Program Files (x86)\Windows Multimedia Platform\Rivavudavi.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

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral1/files/0x000100000001abe6-262.dat	nsis_installer_2
behavioral1/files/0x000100000001abe6-263.dat	nsis_installer_2

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	Ultra.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 2252	740	Install.exe	75
PID 740 wrote to memory of 2252	740	Install.exe	75
PID 740 wrote to memory of 2252	740	Install.exe	75
PID 2252 wrote to memory of 3140	2252	Install.tmp	76
PID 2252 wrote to memory of 3140	2252	Install.tmp	76
PID 3140 wrote to memory of 4016	3140	Ultra.exe	79
PID 3140 wrote to memory of 4016	3140	Ultra.exe	79
PID 3140 wrote to memory of 4016	3140	Ultra.exe	79
PID 4016 wrote to memory of 2068	4016	ultramediaburner.exe	80
PID 4016 wrote to memory of 2068	4016	ultramediaburner.exe	80
PID 4016 wrote to memory of 2068	4016	ultramediaburner.exe	80
PID 3140 wrote to memory of 2128	3140	Ultra.exe	81
PID 3140 wrote to memory of 2128	3140	Ultra.exe	81
PID 3140 wrote to memory of 3868	3140	Ultra.exe	82
PID 3140 wrote to memory of 3868	3140	Ultra.exe	82

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:740
- C:\Users\Admin\AppData\Local\Temp\is-85H7T.tmp\Install.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-85H7T.tmp\Install.tmp" /SL5="$7005C,235791,152064,C:\Users\Admin\AppData\Local\Temp\Install.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Users\Admin\AppData\Local\Temp\is-VJOU4.tmp\Ultra.exe
    "C:\Users\Admin\AppData\Local\Temp\is-VJOU4.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:3140
  - - C:\Program Files\Reference Assemblies\IVKMDAGMFP\ultramediaburner.exe
      "C:\Program Files\Reference Assemblies\IVKMDAGMFP\ultramediaburner.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4016
    - - C:\Users\Admin\AppData\Local\Temp\is-9G8I4.tmp\ultramediaburner.tmp
        
        "C:\Users\Admin\AppData\Local\Temp\is-9G8I4.tmp\ultramediaburner.tmp" /SL5="$4003A,281924,62464,C:\Program Files\Reference Assemblies\IVKMDAGMFP\ultramediaburner.exe" /VERYSILENT
        5⤵
        Executes dropped EXE
        
        PID:2068
      - C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe
        
        "C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe" -silent -desktopShortcut -programMenu
        6⤵
        
        PID:3172
  - - C:\Users\Admin\AppData\Local\Temp\9f-f763f-e6c-4a488-e010b16f44273\Xyliqaebozhi.exe
      "C:\Users\Admin\AppData\Local\Temp\9f-f763f-e6c-4a488-e010b16f44273\Xyliqaebozhi.exe"
      4⤵
      Executes dropped EXE
      PID:2128
  - - C:\Users\Admin\AppData\Local\Temp\04-fa265-31e-07992-00c2ecb199948\ZHizheliwopa.exe
      "C:\Users\Admin\AppData\Local\Temp\04-fa265-31e-07992-00c2ecb199948\ZHizheliwopa.exe"
      4⤵
      Executes dropped EXE
      PID:3868
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\frvfn5q1.iho\instEU.exe & exit
        5⤵
        
        PID:4136
      - C:\Users\Admin\AppData\Local\Temp\frvfn5q1.iho\instEU.exe
        
        C:\Users\Admin\AppData\Local\Temp\frvfn5q1.iho\instEU.exe
        6⤵
        
        PID:4356
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\mmczghib.snm\gpooe.exe & exit
        5⤵
        
        PID:4328
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\w4jyroqm.pdu\google-game.exe & exit
        5⤵
        
        PID:4936
      - C:\Users\Admin\AppData\Local\Temp\w4jyroqm.pdu\google-game.exe
        
        C:\Users\Admin\AppData\Local\Temp\w4jyroqm.pdu\google-game.exe
        6⤵
        
        PID:5052
        
        C:\Windows\SysWOW64\rundll32.exe
        
        "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
        7⤵
        
        PID:2328
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\340ahclw.0zl\md1_1eaf.exe & exit
        5⤵
        
        PID:4452
      - C:\Users\Admin\AppData\Local\Temp\340ahclw.0zl\md1_1eaf.exe
        
        C:\Users\Admin\AppData\Local\Temp\340ahclw.0zl\md1_1eaf.exe
        6⤵
        
        PID:4984
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\btorzybt.30j\UGYNBEOOSC.exe & exit
        5⤵
        
        PID:4100
      - C:\Users\Admin\AppData\Local\Temp\btorzybt.30j\UGYNBEOOSC.exe
        
        C:\Users\Admin\AppData\Local\Temp\btorzybt.30j\UGYNBEOOSC.exe
        6⤵
        
        PID:4564
        
        C:\Users\Admin\AppData\Local\Temp\RarSFX0\main.exe
        
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\main.exe"
        7⤵
        
        PID:1092
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\ti120tlr.5ym\y1.exe & exit
        5⤵
        
        PID:4288
      - C:\Users\Admin\AppData\Local\Temp\ti120tlr.5ym\y1.exe
        
        C:\Users\Admin\AppData\Local\Temp\ti120tlr.5ym\y1.exe
        6⤵
        
        PID:2228
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\ep1zuvf3.hyo\toolspab1.exe & exit
        5⤵
        
        PID:4788
      - C:\Users\Admin\AppData\Local\Temp\ep1zuvf3.hyo\toolspab1.exe
        
        C:\Users\Admin\AppData\Local\Temp\ep1zuvf3.hyo\toolspab1.exe
        6⤵
        
        PID:4488
        
        C:\Users\Admin\AppData\Local\Temp\ep1zuvf3.hyo\toolspab1.exe
        
        C:\Users\Admin\AppData\Local\Temp\ep1zuvf3.hyo\toolspab1.exe
        7⤵
        
        PID:4928
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\cerzok1u.i5p\SunLabsPlayer.exe /S & exit
        5⤵
        
        PID:4132
      - C:\Users\Admin\AppData\Local\Temp\cerzok1u.i5p\SunLabsPlayer.exe
        
        C:\Users\Admin\AppData\Local\Temp\cerzok1u.i5p\SunLabsPlayer.exe /S
        6⤵
        
        PID:5004
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k C:\Users\Admin\AppData\Local\Temp\n4mk1wj2.c0v\GcleanerWW.exe /mixone & exit
        5⤵
        
        PID:4720

C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
"C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
1⤵
PID:4508

C:\Windows\system32\browser_broker.exe
C:\Windows\system32\browser_broker.exe -Embedding
1⤵
PID:4660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k SystemNetworkService
1⤵
PID:4360

C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
"C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
1⤵
PID:2252

C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
"C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
1⤵
PID:4972

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/68-207-0x0000017005380000-0x00000170053F0000-memory.dmp

Filesize
448KB

Download
memory/408-228-0x0000018F43360000-0x0000018F433D0000-memory.dmp

Filesize
448KB

Download
memory/740-114-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1076-225-0x0000022814D90000-0x0000022814E00000-memory.dmp

Filesize
448KB

Download
memory/1096-191-0x000002AD6AE10000-0x000002AD6AE80000-memory.dmp

Filesize
448KB

Download
memory/1096-171-0x000002AD6AD50000-0x000002AD6AD9B000-memory.dmp

Filesize
300KB

Download
memory/1196-206-0x000001FE35360000-0x000001FE353D0000-memory.dmp

Filesize
448KB

Download
memory/1264-212-0x0000026461080000-0x00000264610F0000-memory.dmp

Filesize
448KB

Download
memory/1396-194-0x000001D711C00000-0x000001D711C70000-memory.dmp

Filesize
448KB

Download
memory/1872-201-0x0000028A62380000-0x0000028A623F0000-memory.dmp

Filesize
448KB

Download
memory/2068-140-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2128-139-0x0000000003000000-0x0000000003002000-memory.dmp

Filesize
8KB

Download
memory/2252-118-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2328-169-0x0000000004D36000-0x0000000004E37000-memory.dmp

Filesize
1.0MB

Download
memory/2328-170-0x00000000034A0000-0x00000000034FC000-memory.dmp

Filesize
368KB

Download
memory/2536-222-0x0000028630940000-0x00000286309B0000-memory.dmp

Filesize
448KB

Download
memory/2588-213-0x0000020B57E10000-0x0000020B57E80000-memory.dmp

Filesize
448KB

Download
memory/2712-195-0x0000021272F00000-0x0000021272F70000-memory.dmp

Filesize
448KB

Download
memory/2788-217-0x0000017B65840000-0x0000017B658B0000-memory.dmp

Filesize
448KB

Download
memory/2804-223-0x000001BA8A640000-0x000001BA8A6B0000-memory.dmp

Filesize
448KB

Download
memory/3140-123-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/3172-148-0x0000000002D02000-0x0000000002D04000-memory.dmp

Filesize
8KB

Download
memory/3172-152-0x0000000002D05000-0x0000000002D07000-memory.dmp

Filesize
8KB

Download
memory/3172-150-0x0000000002D04000-0x0000000002D05000-memory.dmp

Filesize
4KB

Download
memory/3172-146-0x0000000002D00000-0x0000000002D02000-memory.dmp

Filesize
8KB

Download
memory/3868-141-0x0000000003120000-0x0000000003122000-memory.dmp

Filesize
8KB

Download
memory/3868-149-0x0000000003125000-0x0000000003126000-memory.dmp

Filesize
4KB

Download
memory/3868-147-0x0000000003122000-0x0000000003124000-memory.dmp

Filesize
8KB

Download
memory/4016-126-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4356-158-0x00000000001F0000-0x0000000000200000-memory.dmp

Filesize
64KB

Download
memory/4356-159-0x00000000006F0000-0x0000000000702000-memory.dmp

Filesize
72KB

Download
memory/4360-205-0x0000019719DD0000-0x0000019719E40000-memory.dmp

Filesize
448KB

Download
memory/4360-249-0x000001971C200000-0x000001971C301000-memory.dmp

Filesize
1.0MB

Download
memory/4488-254-0x0000000000030000-0x000000000003C000-memory.dmp

Filesize
48KB

Download
memory/4928-255-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Resubmissions

Analysis

Sharing

General