gh0strat | 435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 21:28

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General

Target
435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
Size 3.4MB
Sample240528-1blb2sda3w
SHA256 435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436
MD5 d6721a317db91233e16defef02045147
SHA1 08f9654a62c4bf6092c0cb2229bfe74582d70528
SHA512 6c8c00d9c1e8bacbc84fbc3f42d4700a2faa9c5a06086ff9fc66e25c130d281a0e848c1d5ddfc194a44e0500a2ae977fb987914eb7db1070ce180f985f7eb787
SSDEEP 49152:gCwsbCANnKXferL7Vwe/Gg0P+Wh5h7J3jrI+7TvuBoM:rws2ANnKXOaeOgmhB3jEPBoM
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4796-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4796-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4796-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2444-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2444-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4464-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4464-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4464-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000700000002359f-5.dat	family_gh0strat
behavioral2/memory/4796-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4796-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4796-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2444-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2444-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4464-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4464-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4464-45-0x0000000010000000-0x00000000101B6000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.exe

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

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240641953.txt"	R.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

pid	Process
4376	R.exe
4796	N.exe
2444	TXPlatfor.exe
4464	TXPlatfor.exe
2340	HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
692	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4376	R.exe
2912	svchost.exe
692	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4796-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4796-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4796-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4796-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4464-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4464-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4464-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240641953.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4148	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
2340	HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
2340	HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4464	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4796	N.exe
Token: SeLoadDriverPrivilege	4464	TXPlatfor.exe
Token: 33	4464	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4464	TXPlatfor.exe
Token: 33	4464	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4464	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 4376	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	93
PID 4900 wrote to memory of 4376	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	93
PID 4900 wrote to memory of 4376	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	93
PID 4900 wrote to memory of 4796	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	96
PID 4900 wrote to memory of 4796	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	96
PID 4900 wrote to memory of 4796	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	96
PID 4796 wrote to memory of 2116	4796	N.exe	98
PID 4796 wrote to memory of 2116	4796	N.exe	98
PID 4796 wrote to memory of 2116	4796	N.exe	98
PID 2444 wrote to memory of 4464	2444	TXPlatfor.exe	99
PID 2444 wrote to memory of 4464	2444	TXPlatfor.exe	99
PID 2444 wrote to memory of 4464	2444	TXPlatfor.exe	99
PID 4900 wrote to memory of 2340	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	100
PID 4900 wrote to memory of 2340	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	100
PID 4900 wrote to memory of 2340	4900	435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe	100
PID 2116 wrote to memory of 4148	2116	cmd.exe	102
PID 2116 wrote to memory of 4148	2116	cmd.exe	102
PID 2116 wrote to memory of 4148	2116	cmd.exe	102
PID 2912 wrote to memory of 692	2912	svchost.exe	112
PID 2912 wrote to memory of 692	2912	svchost.exe	112
PID 2912 wrote to memory of 692	2912	svchost.exe	112

C:\Users\Admin\AppData\Local\Temp\435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
"C:\Users\Admin\AppData\Local\Temp\435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4376
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\N.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2116
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:4148
- C:\Users\Admin\AppData\Local\Temp\HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
  C:\Users\Admin\AppData\Local\Temp\HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2340

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1704

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240641953.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:692

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4464

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=4168,i,13640054265074968359,8146127767143474550,262144 --variations-seed-version --mojo-platform-channel-handle=3888 /prefetch:8
1⤵
PID:2472

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

Remote System Discovery

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_435b45846cce37a2c10cb456cb6d6cf5cf6166fe4523682ecbea7e526189f436.exe
Size 974KB
SHA256 d078d2c3b9f278e244dd2e797586a092339984ed8b461648c74c3da5c962a042
MD5 94943ac76d2dfcac23ca6a986b46bec8
SHA1 2dc24ee1020363ad8cc901edf33e1bdbccb82620
SHA512 158e82c06fabbc35176c49cb3a0367b538fb2cdb86672f4b942cde8eca41c3e7c356e6a539355aceb73a9d324423c1a4bfba1bb267d73f350845a2e325372a1a
SSDEEP 12288:p4R8Lf3qZTmtMBfBZupBwulOS6SVsnuq9onEXZoOJKzZ2e8b/G8vuBoM:po8LcoMJ3uX/6l7+6I2Rb/TvuBoM
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.5MB
SHA256 eb038f968e7ce0367048c4534def530ad6e8ed85f87993e3d18a9415d46f8ac9
MD5 9a2a8ccaa420ddc584f423759e67e8f1
SHA1 6977fc565d0cfd44223cf757a81a64914f12dbe7
SHA512 7ea5192136aa5cb4b0586952530b01e1c563c3365647b8449e7780667dc43607f52895d01a7d8a4c41efdb307eb03af2ef050c073701264417c51b57d407d63c
SSDEEP 24576:gCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHe:gCwsbCANnKXferL7Vwe/Gg0P+Wh5D
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path C:\Users\Admin\AppData\Local\Temp\N.exe
Size 377KB
SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
MD5 4a36a48e58829c22381572b2040b6fe0
SHA1 f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA512 5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YHL7:HclcceBKlKwAg0Mja/UafOVwbha
MD5 SHA1 SHA512 SSDEEP

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R.exe

Path C:\Users\Admin\AppData\Local\Temp\R.exe
Size 941KB
SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
MD5 8dc3adf1c490211971c1e2325f1424d2
SHA1 4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA512 ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
SSDEEP 24576:N+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw:cerL7Vw
MD5 SHA1 SHA512 SSDEEP

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240641953.txt

Path C:\Windows\SysWOW64\240641953.txt
Size 899KB
SHA256 8113068952af9e6d77f840a155da34f03fff390e3d7c6355c122438ae0cd3f29
MD5 b6d39ba31ae7642c4b7c303310b6883f
SHA1 0307bd0b4f83a4b9f86e33be8e75af8774110f7d
SHA512 73c03bf531a99ef8ea0dca0054b1784cfb04069b777606f960e8c420d0b9be412734d204dddc98b6cecde092356c70116d3bcc0167b505d82fb7618a719bac1b
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXa:7wqd87Va
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

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

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memory/2444-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2444-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2444-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4464-42-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4464-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4464-45-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4796-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4796-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4796-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4796-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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