gh0strat | a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78

Resubmissions

24-11-2024 12:07

241124-pat21syme1 10

24-11-2024 12:04

241124-n8pphsylht 10

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 12:04

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General

Target

a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
Size

328KB
MD5

547b878574ddb23538a8d3409ce702b0
SHA1

ede7adac69f17ed846624c8942e5bdf5a737b164
SHA256

a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78
SHA512

966d6b8d7b91f2195e575ff175f718bf66de61830752e88d0f23956c4dbb9069e11002496bb5c31a21bb651687257994d0b28d7bae937fb46fb62f45bf055e90
SSDEEP

6144:4eKKtlCCp1fBpzhhh2KNZbBKKKrx90J8GtiU67+arHM:hlBpBBpcKwnON6Cars

Score

10^/10

gh0strat ramnit banker discovery persistence rat spyware stealer trojan upx worm

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3540-1-0x0000000010000000-0x0000000010024000-memory.dmp	family_gh0strat
behavioral2/memory/3540-5-0x0000000010000000-0x0000000010024000-memory.dmp	family_gh0strat
behavioral2/memory/3540-23-0x0000000010000000-0x0000000010024000-memory.dmp	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
Gh0strat family
gh0strat
Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
2076	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
4324	DesktopLayer.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe"	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023b8f-7.dat	upx
behavioral2/memory/2076-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2076-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4324-19-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4324-21-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px88C7.tmp	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe

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	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "263147642"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145577"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "439214832"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "263147642"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145577"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "264865930"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3B4A8845-AA5C-11EF-AEE2-EE6C25FCE24B} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145577"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe
4324	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3496	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3496	iexplore.exe
3496	iexplore.exe
3304	IEXPLORE.EXE
3304	IEXPLORE.EXE
3304	IEXPLORE.EXE
3304	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 2076	3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe	83
PID 3540 wrote to memory of 2076	3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe	83
PID 3540 wrote to memory of 2076	3540	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe	83
PID 2076 wrote to memory of 4324	2076	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe	84
PID 2076 wrote to memory of 4324	2076	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe	84
PID 2076 wrote to memory of 4324	2076	a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe	84
PID 4324 wrote to memory of 3496	4324	DesktopLayer.exe	85
PID 4324 wrote to memory of 3496	4324	DesktopLayer.exe	85
PID 3496 wrote to memory of 3304	3496	iexplore.exe	86
PID 3496 wrote to memory of 3304	3496	iexplore.exe	86
PID 3496 wrote to memory of 3304	3496	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe
"C:\Users\Admin\AppData\Local\Temp\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
  C:\Users\Admin\AppData\Local\Temp\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2076
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4324
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3496
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3496 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
539399c9f7153f78b67cde1bcdea163f

SHA1
6cb6e4936d546c17549aec9431a2af7c31bb3c3a

SHA256
27b9528028887b2d852cae2cb55efb965fc13dfa0882f85d6236814f7eb0ad65

SHA512
11836ba1429de7d15b9eb33b4852b0c71872149e9d448959c366aca1db75796446a86ee5c40b274ac3102d5395c7197d4dc2cd11b32754538aa6883e0ebdbf17

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
c3937b87641822ef5d02ded46ad1f3bd

SHA1
dfb4ba655b0997466b8d8b9afca3257c71d8ab15

SHA256
eba5c70397ba38c793dc3b442b4d854efa09ccdb336c647caf26530da582e3d8

SHA512
d29e95c1ec8d958da1cf470ff5288d5f7fc73b8457da235faf811dbdf8b1ed62a15cd7c5cdfd43964315ab88d1aa3d24a03d8a4095a8d3ff31985fffa2cfb006

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\a200023b3ff5786e5e4d90ff8fb355a4bbbe052861871e29a361d2d04233da78Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2076-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2076-10-0x00000000005A0000-0x00000000005AF000-memory.dmp

Filesize
60KB

Download
memory/2076-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3540-23-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3540-1-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/3540-5-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/4324-20-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/4324-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4324-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download