gh0strat | 1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652

General

Target
1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
Size 1.6MB
Sample260421-yllz8aez6t
SHA256 1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652
MD5 e4e8ca0fa29b643b9cab301e63eb0599
SHA1 69b5a3a16bdd2bef0d3d8bf75435e4cb2363bf97
SHA512 468c2ec4419635ae9a7f3408518a534f653e52d1b157f14d0734d8b29634bdb1505727374c125cafcd0c64711eca8756b500f3c42e6f76039d997c0312e172e6
SSDEEP 24576:8YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnZyzXttQd1PbSZ:8YREXSVMDi3aDQd1jS
TLSH
T1DA85CF86BA9184F3C545253089A66735D7769F400F11CA8BE3E8FE2E7E32181DD3A1F6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery gh0strat persistence rat

Malware Config

Signatures

Family: 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

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000024416-5.dat	family_gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240654500.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
4816	look2.exe
3104	HD_1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
3948	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
4816	look2.exe
3036	svchost.exe
3948	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File created	C:\Windows\SysWOW64\240654500.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 4816	4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe	85
PID 4776 wrote to memory of 3104	4776	1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe	88
PID 3036 wrote to memory of 3948	3036	svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
"C:\Users\Admin\AppData\Local\Temp\1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Users\Admin\AppData\Local\Temp\look2.exe
  C:\Users\Admin\AppData\Local\Temp\\look2.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Users\Admin\AppData\Local\Temp\HD_1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
  C:\Users\Admin\AppData\Local\Temp\HD_1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
  2⤵
  - Executes dropped EXE
  PID:3104

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2140

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240654500.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3948

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "svchcst"
1⤵
PID:4452

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

HD_1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_1a7d1c91438a02f1e9fb145fc304d3430c9b18685040e3ab3caa0f996d0c3652.exe
Size 143KB
SHA256 a49140cd966fc55c694216c681e236b0c09cab194f1a08b181e6c1c0c15f1f80
MD5 998d6d3d3ef857e181e6100ec915e825
SHA1 fb87b71da31d5e2d0f3984be4e3a213f7302fd23
SHA512 2d92f1342049c65384d34602b4ec6e404731096f7376edacb9d9915a70c5968f492a8cc97f29218b0764098082b2764c69e7478d366ce9808e70b19e6e0a453c
SSDEEP 3072:b85tt3PY3TrQdVHqtd/P1sZeviNL5BmOcd5bE:wlI4dVWd/PkzLLD
TLSH
T188E38E07B2A134F9E57A8734C8A1450697B3B47507709BAF0694426B6F233E1CD3EFA1
MD5 SHA1 SHA512 SSDEEP TLSH

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.5MB
SHA256 71ad2f0bf2fdd7815d745251936a15f20127fa7ab087d1d96f653e81a905a9ed
MD5 db1d28dea818836d636dfd0f89861538
SHA1 ad32a665731a4f529c6d9b0a959541ca233ad799
SHA512 380a5793385f0ac4b6a364ebd1a39f2311276e2d0b22209ed2919bb7aea374c7f424ea30e25f96367b720bd2ee20a6ce616c3112c8a32aa82ad970810767e729
SSDEEP 24576:8YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnZyzXttQd1PbU:8YREXSVMDi3aDQd1jU
TLSH
T1FB75CF96BA92C4B3C54524308AE6A775D67A8F400F11CA87E3E8FE2E7D3118199371F6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

look2.exe

Path C:\Users\Admin\AppData\Local\Temp\look2.exe
Size 337KB
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4
SSDEEP 6144:8IXwWcHnNmZEvB7csAPRZyfQjCfA3lMXm4Y+5bFnWBFopJOU:8IXwDNmZEvJcscRZzjCI1O5W
TLSH
T1B474BF137FE4C8B6C59351324EE25F7AA1F6FE902E224A4333956F0CDD32691963A316
MD5 SHA1 SHA512 SSDEEP TLSH

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240654500.bat

Path C:\Windows\SysWOW64\240654500.bat
Size 51KB
SHA256 2f2f5e76221bd83e2ff19144a7d587435b0075ca37b327e3b8a627c391c534a7
MD5 fd7bb50eb7ccda7b60683337788cbd23
SHA1 262a7e937c20a1dca485f64f274fddfade3be057
SHA512 7d70aeb01db2abb51a0acc9dfb055fe3bf32cdcd6071272c7f47d7d0553d9704e11f2a255389a5fca656eab2a6ebc3369ffd3e33620e0c24300c472e69fd1783
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLmJYH5:1dWubF3n9S91BF3fbo6JYH5
TLSH
T12A334A02EE8D88F5F145177038AA33B6953ABDE036996A931F53DDA5C87B370F12D242
MD5 SHA1 SHA512 SSDEEP TLSH

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4816-15-0x0000000000A50000-0x0000000000B0F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads