gh0strat | 2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767

General

Target

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
Size

444KB
MD5

a813ee9e9b72e684da714eb2a1ccdf1b
SHA1

24bafb9f757952ab0475ffc97b3cca44356a2acf
SHA256

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767
SHA512

92e0a4845e2067df791e2db0d7e30c2a5dec1ba164f33064a7719208dc4ca264d3439393d2e98edd7b240a0fa28132bf6bacf5aa5bf216c8abccf35e1a7fe179
SSDEEP

6144:X6KdgPUVY1AeI1up6VPrwhWTmH793czdwjzysjjKk18Hame:XJdC1AeIKsshWTmZMzdwNjjK+

Score

10^/10

gh0strat purplefox evasion persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/1956-55-0x00000000031D0000-0x0000000003376000-memory.dmp	purplefox_rootkit
behavioral1/memory/1956-60-0x0000000002F20000-0x00000000030E4000-memory.dmp	purplefox_rootkit
behavioral1/memory/1956-61-0x00000000031D0000-0x0000000003376000-memory.dmp	purplefox_rootkit
behavioral1/memory/1156-70-0x0000000002310000-0x00000000024B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1156-75-0x0000000002310000-0x00000000024B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1156-74-0x00000000021A0000-0x00000000022D9000-memory.dmp	purplefox_rootkit
behavioral1/memory/1156-79-0x0000000002310000-0x00000000024B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1956-55-0x00000000031D0000-0x0000000003376000-memory.dmp	family_gh0strat
behavioral1/memory/1956-61-0x00000000031D0000-0x0000000003376000-memory.dmp	family_gh0strat
behavioral1/memory/1156-70-0x0000000002310000-0x00000000024B6000-memory.dmp	family_gh0strat
behavioral1/memory/1156-75-0x0000000002310000-0x00000000024B6000-memory.dmp	family_gh0strat
behavioral1/memory/1156-74-0x00000000021A0000-0x00000000022D9000-memory.dmp	family_gh0strat
behavioral1/memory/1156-79-0x0000000002310000-0x00000000024B6000-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
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

windows.exe

pid process

1156 windows.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1736 attrib.exe
1496 attrib.exe

pid	process
1156	windows.exe

pid	process
1736	attrib.exe
1496	attrib.exe

Loads dropped DLL 2 IoCs

Processes:

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe

pid	process
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

windows.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Window°²È«·À»¤ÖÐÐÄÄ£¿é = "C:\\ProgramData\\Micros\\svchost.exe"	windows.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

windows.exe

description	ioc	process
File opened (read-only)	\??\J:	windows.exe
File opened (read-only)	\??\T:	windows.exe
File opened (read-only)	\??\W:	windows.exe
File opened (read-only)	\??\B:	windows.exe
File opened (read-only)	\??\G:	windows.exe
File opened (read-only)	\??\K:	windows.exe
File opened (read-only)	\??\O:	windows.exe
File opened (read-only)	\??\P:	windows.exe
File opened (read-only)	\??\Q:	windows.exe
File opened (read-only)	\??\X:	windows.exe
File opened (read-only)	\??\Y:	windows.exe
File opened (read-only)	\??\F:	windows.exe
File opened (read-only)	\??\I:	windows.exe
File opened (read-only)	\??\R:	windows.exe
File opened (read-only)	\??\U:	windows.exe
File opened (read-only)	\??\V:	windows.exe
File opened (read-only)	\??\Z:	windows.exe
File opened (read-only)	\??\L:	windows.exe
File opened (read-only)	\??\M:	windows.exe
File opened (read-only)	\??\N:	windows.exe
File opened (read-only)	\??\S:	windows.exe
File opened (read-only)	\??\E:	windows.exe
File opened (read-only)	\??\H:	windows.exe

Drops file in Program Files directory 1 IoCs

Processes:

attrib.exe

description ioc process

File opened for modification C:\PROGRA~3\windows.exe attrib.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\PROGRA~3\windows.exe	attrib.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

windows.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	windows.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	windows.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exewindows.exe

pid	process
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe
1156	windows.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exewindows.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
Token: SeIncBasePriorityPrivilege	1156	windows.exe
Token: 33	1156	windows.exe
Token: SeIncBasePriorityPrivilege	1156	windows.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exewindows.exe

pid process

1956 2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
1156 windows.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.execmd.exewindows.execmd.exe

description	pid	process	target process
PID 1956 wrote to memory of 1512	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1512	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1512	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1512	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1864	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1864	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1864	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1864	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1548	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1548	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1548	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1956 wrote to memory of 1548	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	cmd.exe
PID 1512 wrote to memory of 1736	1512	cmd.exe	attrib.exe
PID 1512 wrote to memory of 1736	1512	cmd.exe	attrib.exe
PID 1512 wrote to memory of 1736	1512	cmd.exe	attrib.exe
PID 1512 wrote to memory of 1736	1512	cmd.exe	attrib.exe
PID 1956 wrote to memory of 1156	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	windows.exe
PID 1956 wrote to memory of 1156	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	windows.exe
PID 1956 wrote to memory of 1156	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	windows.exe
PID 1956 wrote to memory of 1156	1956	2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe	windows.exe
PID 1156 wrote to memory of 1356	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1356	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1356	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1356	1156	windows.exe	cmd.exe
PID 1356 wrote to memory of 1496	1356	cmd.exe	attrib.exe
PID 1356 wrote to memory of 1496	1356	cmd.exe	attrib.exe
PID 1356 wrote to memory of 1496	1356	cmd.exe	attrib.exe
PID 1356 wrote to memory of 1496	1356	cmd.exe	attrib.exe
PID 1156 wrote to memory of 1556	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1556	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1556	1156	windows.exe	cmd.exe
PID 1156 wrote to memory of 1556	1156	windows.exe	cmd.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1736 attrib.exe
1496 attrib.exe

pid	process
1736	attrib.exe
1496	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe
"C:\Users\Admin\AppData\Local\Temp\2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c attrib C:\Users\Admin\AppData\Local\Temp\214672~1.EXE +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\attrib.exe
attrib C:\Users\Admin\AppData\Local\Temp\214672~1.EXE +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1736

C:\Windows\SysWOW64\cmd.exe
cmd /c md C:\ProgramData\Micros
2⤵
PID:1864

C:\Windows\SysWOW64\cmd.exe
cmd /c md C:\ProgramData\Micros
2⤵
PID:1548

C:\ProgramData\windows.exe
C:\ProgramData\windows.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c attrib C:\PROGRA~3\windows.exe +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1356

C:\Windows\SysWOW64\attrib.exe
attrib C:\PROGRA~3\windows.exe +s +h
4⤵
- Sets file to hidden
- Drops file in Program Files directory
- Views/modifies file attributes
PID:1496

C:\Windows\SysWOW64\cmd.exe
cmd /c md C:\ProgramData\ru
3⤵
PID:1556

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2

T1158

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\windows.exe
Filesize
444KB

MD5
a813ee9e9b72e684da714eb2a1ccdf1b

SHA1
24bafb9f757952ab0475ffc97b3cca44356a2acf

SHA256
2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767

SHA512
92e0a4845e2067df791e2db0d7e30c2a5dec1ba164f33064a7719208dc4ca264d3439393d2e98edd7b240a0fa28132bf6bacf5aa5bf216c8abccf35e1a7fe179

Download Submit
C:\ProgramData\Micros\1.txt
Filesize
76KB

MD5
a0174e9945895fa8ace11f6bb4a64298

SHA1
527c4ebc005deb88f29edd83a23ac977735d76c4

SHA256
2dcd521895377ae3463dd61369c7fc6aafd8610e020592bf29b88888fc295ca0

SHA512
974f26161cc94c42fbe781db476562ccee90051f5c419ad156d4d17ab63231fa62a064c32cf1acc648e06d01d7f69e785f1421407859f2d78976d76a89b27dec

Download Submit
C:\ProgramData\Micros\2.txt
Filesize
44KB

MD5
96d097045736a2a1526d63c2d83a6b22

SHA1
dde933d7fcc22e41f981d043a3aa835e3b19f86e

SHA256
abbd451b402243bf00ad76f253d2b1c3f80d1d6f6c7f5b2f0d5e3fdd7f9c06e5

SHA512
e6ef5a7f25af760fef212b46b1796b8b386575e258a8b02a4c74510bb600e7fac3d344cceae14ef4b72a2520022e7cc611b34a56f737892ed4970ed1150945bd

Download Submit
C:\ProgramData\SHELL.TXT
Filesize
1.2MB

MD5
3a609e0c8a5d9c5f8ca058f767fa20cf

SHA1
791ddf60a63150bffee4e7453679a78853ffcb7c

SHA256
f6386b915a9a1344fd7d40850132bca0f54a8cfb43721021049e968c32536799

SHA512
fbe66dd84b9bad885d843c662992aa3a9b3d25b14a3acfcdb13b04547836295c37b0f9cf4fb8b7c0537de9601992e1c4275e9e1a841a130f3efb2b1e7fb34f35

Download Submit
C:\ProgramData\SHELL.ini
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\ProgramData\windows.exe
Filesize
444KB

MD5
a813ee9e9b72e684da714eb2a1ccdf1b

SHA1
24bafb9f757952ab0475ffc97b3cca44356a2acf

SHA256
2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767

SHA512
92e0a4845e2067df791e2db0d7e30c2a5dec1ba164f33064a7719208dc4ca264d3439393d2e98edd7b240a0fa28132bf6bacf5aa5bf216c8abccf35e1a7fe179

Download Submit
\ProgramData\windows.exe
Filesize
444KB

MD5
a813ee9e9b72e684da714eb2a1ccdf1b

SHA1
24bafb9f757952ab0475ffc97b3cca44356a2acf

SHA256
2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767

SHA512
92e0a4845e2067df791e2db0d7e30c2a5dec1ba164f33064a7719208dc4ca264d3439393d2e98edd7b240a0fa28132bf6bacf5aa5bf216c8abccf35e1a7fe179

Download Submit
\ProgramData\windows.exe
Filesize
444KB

MD5
a813ee9e9b72e684da714eb2a1ccdf1b

SHA1
24bafb9f757952ab0475ffc97b3cca44356a2acf

SHA256
2146722a3a95cd3f2eca28acc9412f1a2f0eebdcdb0e4773bd2de9c222f74767

SHA512
92e0a4845e2067df791e2db0d7e30c2a5dec1ba164f33064a7719208dc4ca264d3439393d2e98edd7b240a0fa28132bf6bacf5aa5bf216c8abccf35e1a7fe179

Download Submit
memory/1156-79-0x0000000002310000-0x00000000024B6000-memory.dmp

Filesize
1.6MB

Download
memory/1156-65-0x0000000000000000-mapping.dmp

Download
memory/1156-74-0x00000000021A0000-0x00000000022D9000-memory.dmp

Filesize
1.2MB

Download
memory/1156-75-0x0000000002310000-0x00000000024B6000-memory.dmp

Filesize
1.6MB

Download
memory/1156-70-0x0000000002310000-0x00000000024B6000-memory.dmp

Filesize
1.6MB

Download
memory/1356-71-0x0000000000000000-mapping.dmp

Download
memory/1496-72-0x0000000000000000-mapping.dmp

Download
memory/1512-56-0x0000000000000000-mapping.dmp

Download
memory/1548-58-0x0000000000000000-mapping.dmp

Download
memory/1556-76-0x0000000000000000-mapping.dmp

Download
memory/1736-59-0x0000000000000000-mapping.dmp

Download
memory/1864-57-0x0000000000000000-mapping.dmp

Download
memory/1956-60-0x0000000002F20000-0x00000000030E4000-memory.dmp

Filesize
1.8MB

Download
memory/1956-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/1956-62-0x0000000002F20000-0x00000000030E4000-memory.dmp

Filesize
1.8MB

Download
memory/1956-55-0x00000000031D0000-0x0000000003376000-memory.dmp

Filesize
1.6MB

Download
memory/1956-61-0x00000000031D0000-0x0000000003376000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads