97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12

Resubmissions

26/12/2022, 02:17

221226-cq1taafe7t 8

26/12/2022, 01:37

221226-b16lvafe6s 8

26/12/2022, 01:34

221226-by65lacd25 8

25/12/2022, 04:48

221225-fff8nsbb39 10

Analysis

max time kernel
1799s
max time network
1803s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2022, 02:17

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General

Target

97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe
Size

1.6MB
MD5

5015b3096f5bf7039c82684c2d88bf2c
SHA1

24aada32e2ac068d737866b6561e64a20f10f65e
SHA256

97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12
SHA512

808031a37f169702a6e495bbd7597a8a2dd6c7e0d9690d35b4b822aff59987db5674bea0a2da042343313463860f8ef987276a8f92fc670b541e091c99f5045b
SSDEEP

49152:g2LdRphDBhCTGFMWDumigm0pCiO5BAD70TfhxWYAhiISV:g2JRphjZM2UCGrIm

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1604	Engine.exe
4832	Participant.exe.pif

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0006000000022f6d-133.dat	upx
behavioral2/files/0x0006000000022f6d-134.dat	upx
behavioral2/memory/1604-136-0x0000000000400000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1604-154-0x0000000000400000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1604-162-0x0000000000400000-0x0000000000558000-memory.dmp	upx

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Videos\Captures\desktop.ini	svchost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 64	4832	Participant.exe.pif	103

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2891029575-1462575-1165213807-1000\{8068015E-AB55-482E-BFDA-062E77614F0B}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2891029575-1462575-1165213807-1000\{47868300-301C-40F2-BA3D-9263839C48A5}	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1576	PING.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1068	powershell.exe
1068	powershell.exe
1068	powershell.exe
3256	powershell.exe
3256	powershell.exe
3256	powershell.exe
3256	powershell.exe
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1068	powershell.exe
Token: SeDebugPrivilege	3256	powershell.exe
Token: SeDebugPrivilege	64	jsc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4832	Participant.exe.pif
4832	Participant.exe.pif
4832	Participant.exe.pif

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1124	OpenWith.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 1604	5056	97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe	82
PID 5056 wrote to memory of 1604	5056	97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe	82
PID 5056 wrote to memory of 1604	5056	97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe	82
PID 1604 wrote to memory of 796	1604	Engine.exe	83
PID 1604 wrote to memory of 796	1604	Engine.exe	83
PID 1604 wrote to memory of 796	1604	Engine.exe	83
PID 796 wrote to memory of 2844	796	cmd.exe	86
PID 796 wrote to memory of 2844	796	cmd.exe	86
PID 796 wrote to memory of 2844	796	cmd.exe	86
PID 2844 wrote to memory of 1068	2844	cmd.exe	90
PID 2844 wrote to memory of 1068	2844	cmd.exe	90
PID 2844 wrote to memory of 1068	2844	cmd.exe	90
PID 2844 wrote to memory of 3256	2844	cmd.exe	94
PID 2844 wrote to memory of 3256	2844	cmd.exe	94
PID 2844 wrote to memory of 3256	2844	cmd.exe	94
PID 2844 wrote to memory of 688	2844	cmd.exe	96
PID 2844 wrote to memory of 688	2844	cmd.exe	96
PID 2844 wrote to memory of 688	2844	cmd.exe	96
PID 2844 wrote to memory of 4832	2844	cmd.exe	97
PID 2844 wrote to memory of 4832	2844	cmd.exe	97
PID 2844 wrote to memory of 4832	2844	cmd.exe	97
PID 2844 wrote to memory of 1576	2844	cmd.exe	98
PID 2844 wrote to memory of 1576	2844	cmd.exe	98
PID 2844 wrote to memory of 1576	2844	cmd.exe	98
PID 4832 wrote to memory of 64	4832	Participant.exe.pif	103
PID 4832 wrote to memory of 64	4832	Participant.exe.pif	103
PID 4832 wrote to memory of 64	4832	Participant.exe.pif	103
PID 4832 wrote to memory of 64	4832	Participant.exe.pif	103
PID 4832 wrote to memory of 64	4832	Participant.exe.pif	103

C:\Users\Admin\AppData\Local\Temp\97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe
"C:\Users\Admin\AppData\Local\Temp\97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Engine.exe
  C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Engine.exe /TH_ID=_5052 /OriginExe="C:\Users\Admin\AppData\Local\Temp\97c5a2a43d3d301f94d6226e60e12b08f04ce416ba2d1b93fa98b26fa9783e12.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c cmd < 5
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:796
  - - C:\Windows\SysWOW64\cmd.exe
      cmd
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2844
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell get-process avastui
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1068
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell get-process avgui
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3256
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr /V /R "^4172427212736811499564357707315395374551589040599087952093583091844164705808632821$" 3
        5⤵
        
        PID:688
    - - C:\Users\Admin\AppData\Local\Temp\njv3bvgd.5b1\30842\Participant.exe.pif
        
        30842\\Participant.exe.pif 30842\\P
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of FindShellTrayWindow
        Suspicious use of SendNotifyMessage
        Suspicious use of WriteProcessMemory
        
        PID:4832
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:64
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping localhost -n 8
        5⤵
        Runs ping.exe
        
        PID:1576

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:1124

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Modifies registry class
PID:1144

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
1⤵
- Checks processor information in registry
- Modifies registry class
PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
def65711d78669d7f8e69313be4acf2e

SHA1
6522ebf1de09eeb981e270bd95114bc69a49cda6

SHA256
aa1c97cdbce9a848f1db2ad483f19caa535b55a3a1ef2ad1260e0437002bc82c

SHA512
05b2f9cd9bc3b46f52fded320b68e05f79b2b3ceaeb13e5d87ae9f8cd8e6c90bbb4ffa4da8192c2bfe0f58826cabff2e99e7c5cc8dd47037d4eb7bfc6f2710a7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
34df6c2846dc24593911320e786464b2

SHA1
004c790f607f8534f8a39a85cb5aece2dd1c2ae0

SHA256
f917ae1f323c7022ee351e3eba672ccda225c22bbdece846573145c8be9be7e7

SHA512
1687e061b6a85567f35cabecbd338375c06feb80f1921b57c9cc30c6bc4ab83d38a3728196045b0ee4dc20cbb793557608ef3f0ad3ec651bc46eaabde600c8c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\00000#3

Filesize
872KB

MD5
9cd9369d3dc8824248464570a212e564

SHA1
a9880b7367c0c1e7a560fd9bc68c7561847d65d8

SHA256
cd1408c1e426684ffbe76ff868ed7e9cf0a56617dc2817243c9314653b1c3cdf

SHA512
64bf6265cde11d0f4ab36a6178b5aa2239468871f7b02513b7b9aa9721e8e217e87316e21acc951ea2c99bb194bb6f278ccef98fe127cb65407f85d150c71eca

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\00001#5

Filesize
12KB

MD5
766ec43b82895b93ac97641978856551

SHA1
af4184b1ea5a2314773cbb85aa6bc9c21f41aa87

SHA256
63e7a1799d65555bf0fef6b3b7ffe388657f8010d17f6ec73a16d8804ae75d34

SHA512
597bd5019d92d616b8e86d246770e9b6dfa40cf2d3c70144f9efe9bbacd50950623bbb167b1dc54b5198e917a128839ca93edc9019ab5f1042649c4a13e44611

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\00002#7

Filesize
1.5MB

MD5
268a482ed5ef9f3209bec71d291a19e7

SHA1
11e94a6f5360dabcd60a2329b86ec28c2e8ca38c

SHA256
1921ce205f4ef1a01a0c5dd326499dc26d3f9588888c97d59aa42917ba053bed

SHA512
9d43663903c23777b5e7408b73fea94885f07019a9cecc95b43641fb2712e1187d0bdef8bc5323667535f3f6c77ae8b587d6c6baa09a2b05ab420b2501455beb

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Engine.exe

Filesize
392KB

MD5
a7a99a201774531d761f6aac2651a9df

SHA1
b122ae368c4bf103e959a6ebb54ddb310117ab96

SHA256
e6e73497e85e9ece4c92ac7d49e07b9d55e932ba2d9e5789b94b95a9841ee524

SHA512
056504da2afeed547a4123ac8c38b35291b7dc0126fb638ae304eee802ac572715f9d608e9f1655788a030f488354741ee27c805434111c8e915cf841c0892f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Engine.exe

Filesize
392KB

MD5
a7a99a201774531d761f6aac2651a9df

SHA1
b122ae368c4bf103e959a6ebb54ddb310117ab96

SHA256
e6e73497e85e9ece4c92ac7d49e07b9d55e932ba2d9e5789b94b95a9841ee524

SHA512
056504da2afeed547a4123ac8c38b35291b7dc0126fb638ae304eee802ac572715f9d608e9f1655788a030f488354741ee27c805434111c8e915cf841c0892f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Modern_Icon.bmp

Filesize
7KB

MD5
1dd88f67f029710d5c5858a6293a93f1

SHA1
3e5ef66613415fe9467b2a24ccc27d8f997e7df6

SHA256
b5dad33ceb6eb1ac2a05fbda76e29a73038403939218a88367925c3a20c05532

SHA512
7071fd64038e0058c8c586c63c62677c0ca403768100f90323cf9c0bc7b7fcb538391e6f3606bd7970b8769445606ada47adcdcfc1e991e25caf272a13e10c94

Download Submit
C:\Users\Admin\AppData\Local\Temp\SETUP_27045\Setup.txt

Filesize
2KB

MD5
cae83309280eb1febee041b70be024fd

SHA1
c3a773b4c1430dcbabcc7687a98aaccf12710443

SHA256
a3e3ef834ab038542f3ba5bfbae89d63bb147c270663ecbb0420b1a68e1d7255

SHA512
e1bdcf17fd22f55c66e4fc99b202cdc27d6135308158739cdcca519d5a1b3ae28e3c4d1a018b47d600410b91b779d468b113ad8e9fd583e589567abf141b3949

Download Submit
C:\Users\Admin\AppData\Local\Temp\njv3bvgd.5b1\30842\Participant.exe.pif

Filesize
872KB

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/64-166-0x0000000004CA0000-0x0000000004D32000-memory.dmp

Filesize
584KB

Download
memory/64-164-0x0000000000700000-0x00000000007A6000-memory.dmp

Filesize
664KB

Download
memory/1068-150-0x0000000006AE0000-0x0000000006B76000-memory.dmp

Filesize
600KB

Download
memory/1068-146-0x0000000004B30000-0x0000000004B52000-memory.dmp

Filesize
136KB

Download
memory/1068-151-0x0000000005FC0000-0x0000000005FDA000-memory.dmp

Filesize
104KB

Download
memory/1068-148-0x0000000004E40000-0x0000000004EA6000-memory.dmp

Filesize
408KB

Download
memory/1068-149-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

Filesize
120KB

Download
memory/1068-152-0x0000000006010000-0x0000000006032000-memory.dmp

Filesize
136KB

Download
memory/1068-153-0x0000000007130000-0x00000000076D4000-memory.dmp

Filesize
5.6MB

Download
memory/1068-144-0x00000000021F0000-0x0000000002226000-memory.dmp

Filesize
216KB

Download
memory/1068-147-0x0000000004DD0000-0x0000000004E36000-memory.dmp

Filesize
408KB

Download
memory/1068-145-0x0000000004EF0000-0x0000000005518000-memory.dmp

Filesize
6.2MB

Download
memory/1604-154-0x0000000000400000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1604-162-0x0000000000400000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1604-136-0x0000000000400000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download