gh0strat | aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20

General

Target

aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
Size

2.6MB
MD5

9453a61638673a2253899e82b2ba50bb
SHA1

df3ae0831d5cd1eb5ee1a5eaefc55411c2456980
SHA256

aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20
SHA512

7f1544c1f7784cd422e593862a96a3fd701df43a74ed9025cac4614de2a5c56d7334f721fb39e39e41bfbf7edd8d8ec42d0b69aa76c4370f7aa2c18cc0463bfd
SSDEEP

49152:yCwsbCANnKXferL7Vwe/Gg0P+WhQHFqb:Vws2ANnKXOaeOgmhQHF

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/1392-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1392-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1392-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3164-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3164-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2980-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2980-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240641843.txt	family_gh0strat
behavioral2/memory/1392-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1392-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1392-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3164-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3164-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2980-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2980-45-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatfor.exe

description ioc process

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

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

Processes:

R.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240641843.txt"	R.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatfor.exe

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

Executes dropped EXE 6 IoCs

Processes:

R.exeN.exeTXPlatfor.exeTXPlatfor.exeHD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exeRemote Data.exe

pid	process
4004	R.exe
1392	N.exe
3164	TXPlatfor.exe
2980	TXPlatfor.exe
3584	HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
3316	Remote Data.exe

Loads dropped DLL 3 IoCs

Processes:

R.exesvchost.exeRemote Data.exe

pid process

4004 R.exe
4812 svchost.exe
3316 Remote Data.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1392-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1392-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1392-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1392-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3164-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3164-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3164-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2980-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2980-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

N.exeR.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240641843.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
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4536 PING.EXE

pid	process
4536	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe

pid	process
2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

2980 TXPlatfor.exe

pid	process
2980	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1392	N.exe
Token: SeLoadDriverPrivilege	2980	TXPlatfor.exe
Token: 33	2980	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2980	TXPlatfor.exe
Token: 33	2980	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2980	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe

pid	process
2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 2012 wrote to memory of 4004	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	R.exe
PID 2012 wrote to memory of 4004	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	R.exe
PID 2012 wrote to memory of 4004	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	R.exe
PID 2012 wrote to memory of 1392	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	N.exe
PID 2012 wrote to memory of 1392	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	N.exe
PID 2012 wrote to memory of 1392	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	N.exe
PID 1392 wrote to memory of 448	1392	N.exe	cmd.exe
PID 1392 wrote to memory of 448	1392	N.exe	cmd.exe
PID 1392 wrote to memory of 448	1392	N.exe	cmd.exe
PID 2012 wrote to memory of 3584	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
PID 2012 wrote to memory of 3584	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
PID 2012 wrote to memory of 3584	2012	aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe	HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
PID 3164 wrote to memory of 2980	3164	TXPlatfor.exe	TXPlatfor.exe
PID 3164 wrote to memory of 2980	3164	TXPlatfor.exe	TXPlatfor.exe
PID 3164 wrote to memory of 2980	3164	TXPlatfor.exe	TXPlatfor.exe
PID 448 wrote to memory of 4536	448	cmd.exe	PING.EXE
PID 448 wrote to memory of 4536	448	cmd.exe	PING.EXE
PID 448 wrote to memory of 4536	448	cmd.exe	PING.EXE
PID 4812 wrote to memory of 3316	4812	svchost.exe	Remote Data.exe
PID 4812 wrote to memory of 3316	4812	svchost.exe	Remote Data.exe
PID 4812 wrote to memory of 3316	4812	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
"C:\Users\Admin\AppData\Local\Temp\aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012

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:4004

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:1392

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:448

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:4536

C:\Users\Admin\AppData\Local\Temp\HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
C:\Users\Admin\AppData\Local\Temp\HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe
2⤵
- Executes dropped EXE
PID:3584

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4268

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:4812

C:\Windows\SysWOW64\Remote Data.exe
"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240641843.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3316

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3164

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:2980

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=4356,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4380 /prefetch:8
1⤵
PID:4816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
2.3MB

MD5
aba33c38a4d245f9b4592dfa39edaafb

SHA1
ea84e3b8a962dc1a8bdc6f3c2e41138994174450

SHA256
6ca948560e127a1a116932250f38e548794c49e71ef482a8add2b6959b5fa232

SHA512
02ccf5468ba6012a4c5f729661a0b839af1be926c7c9bcaab54834dee0b779c6e47bfa487ce88ac4f4263907f76c9f8ed9ead91399931dc8b95a20650fa38816

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_aa8e19d99a5ee8660503e3b1a69475af0d9d3393069dd4cbe729f52d61f62b20.exe

Filesize
287KB

MD5
5d573f5f0a860915f6a9ba9f0472520d

SHA1
eabf1a95fe5069c4b4a7d112268c6a08410a84de

SHA256
86be7dffab7169e5182dc1c478919de397ea6075385d26fbafa58eef994df8b4

SHA512
de0f9cc7fb177dbde5a2dbc20d965c60ee8619fc7a9557a4cba1481c607d9d6b7da16c100ab6fffd7284430623b9d8b4246c34eace2e3c8705f48d1c92738ed4

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240641843.txt

Filesize
899KB

MD5
a982298386625218721cdec499aa09fa

SHA1
bef9f91be60af0e3a1226e2943ee7644fbd5b50e

SHA256
7acf4bedc63e0898009338daaa48669446bab89ee530e7157ba822e7cd972380

SHA512
5a27751ed1e51648e6f6c04feb0cd16fd92c2b6edfadaccc2cc573e31615f0afbdeb0ea62c29e535dfccced41d02b4394e137fad01fac334a6301e219d32396f

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1392-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1392-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1392-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1392-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2980-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2980-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3164-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3164-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3164-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads