gh0strat | b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d

General

Target

b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe
Size

1.4MB
MD5

ea2e8f89219be88b11f91f8f767221e8
SHA1

395d9e606c2a8904b9aa6360cc2786a8a77e3e4d
SHA256

b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d
SHA512

0c57f91556d6cd32d07008c44769d8968a174202b5cf943275a9c2e0e8e90af2973763d2308e20104b2b4a275bb1ebf440568901074bce9f88ccd5d8f0a06b61
SSDEEP

24576:6YFbkIsaPiXSVnC7Yp9zkNmZG8RRln6yzDOIQk3cn:6YREXSVMDi3MNkMn

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240639140.bat	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

look2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240639140.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

4340 look2.exe
624 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

4340 look2.exe
4788 svchost.exe
624 svchcst.exe

pid	process
4340	look2.exe
624	svchcst.exe

pid	process
4340	look2.exe
4788	svchost.exe
624	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\240639140.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

Processes:

b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe

pid	process
3816	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe
3816	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exesvchost.exe

description	pid	process	target process
PID 3816 wrote to memory of 4340	3816	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe	look2.exe
PID 3816 wrote to memory of 4340	3816	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe	look2.exe
PID 3816 wrote to memory of 4340	3816	b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe	look2.exe
PID 4788 wrote to memory of 624	4788	svchost.exe	svchcst.exe
PID 4788 wrote to memory of 624	4788	svchost.exe	svchcst.exe
PID 4788 wrote to memory of 624	4788	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe
"C:\Users\Admin\AppData\Local\Temp\b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3816

C:\Users\Admin\AppData\Local\Temp\look2.exe
C:\Users\Admin\AppData\Local\Temp\\look2.exe
2⤵
- Sets DLL path for service in the registry
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:4340

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4712

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4788

C:\Windows\SysWOW64\svchcst.exe
C:\Windows\system32\svchcst.exe "c:\windows\system32\240639140.bat",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:624

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4152,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
1.4MB

MD5
ea2e8f89219be88b11f91f8f767221e8

SHA1
395d9e606c2a8904b9aa6360cc2786a8a77e3e4d

SHA256
b7ec9aa68acf51e3c2a1b0c18e06a0ea1a768d2430f4fc336e315af064bb0c2d

SHA512
0c57f91556d6cd32d07008c44769d8968a174202b5cf943275a9c2e0e8e90af2973763d2308e20104b2b4a275bb1ebf440568901074bce9f88ccd5d8f0a06b61

Download Submit
C:\Users\Admin\AppData\Local\Temp\look2.exe

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
C:\Windows\SysWOW64\240639140.bat

Filesize
51KB

MD5
279818e99e54b7179457001c7a5d2405

SHA1
c3b7ce2880a55f70af2d2764d4886594cba67d92

SHA256
14f37e5088a94866a427c1aa97e5c2c73b57623eb406e48943f8c9cfedf2e3c8

SHA512
b30f2766a4960c24810817dad14b8aaebc1aa50e1858602133b0686dbb816803403009d68a5e41b707f2e7669bb946252a138c2e6996d546b6c263653c1371c8

Download Submit
C:\Windows\SysWOW64\svchcst.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads