gh0strat | 1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c

General

Target

1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe
Size

840KB
MD5

29134e6a1688ce88edf31e1146be282d
SHA1

5aea9e4de2a42900f26304bab5cf1dc6954dfc41
SHA256

1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c
SHA512

9b3baba119241a7ea0fd5671ab5a967fd347b2cbb09eb90e9f63e945daae0254fce9dcf020ab035cc1f481033a0ca9cf298a7b043b96f7b65c9fd83445876a2a
SSDEEP

12288:VRS7sigf4wDtUDQ6DFhsQbi5VV1r39MTdpB+IuDTHjovji6DECf0TT:7SwDcvD0Qb2taTdpsIuDrjoriy0T

Score

10^/10

gh0strat purplefox rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2000-54-0x0000000010000000-0x00000000101A0000-memory.dmp	purplefox_rootkit
behavioral1/memory/2000-62-0x0000000000400000-0x00000000005CA8A1-memory.dmp	purplefox_rootkit
behavioral1/memory/796-72-0x0000000000400000-0x00000000005CA8A1-memory.dmp	purplefox_rootkit
behavioral1/memory/2000-73-0x0000000000400000-0x00000000005CA8A1-memory.dmp	purplefox_rootkit
behavioral1/memory/796-75-0x0000000000400000-0x00000000005CA8A1-memory.dmp	purplefox_rootkit
behavioral1/memory/1772-76-0x0000000010000000-0x00000000101A0000-memory.dmp	purplefox_rootkit
behavioral1/memory/1772-83-0x0000000000400000-0x00000000005CA8A1-memory.dmp	purplefox_rootkit

Gh0st RAT payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2000-54-0x0000000010000000-0x00000000101A0000-memory.dmp	family_gh0strat
behavioral1/memory/2000-62-0x0000000000400000-0x00000000005CA8A1-memory.dmp	family_gh0strat
behavioral1/memory/796-72-0x0000000000400000-0x00000000005CA8A1-memory.dmp	family_gh0strat
behavioral1/memory/2000-73-0x0000000000400000-0x00000000005CA8A1-memory.dmp	family_gh0strat
behavioral1/memory/796-75-0x0000000000400000-0x00000000005CA8A1-memory.dmp	family_gh0strat
behavioral1/memory/1772-76-0x0000000010000000-0x00000000101A0000-memory.dmp	family_gh0strat
behavioral1/memory/1772-83-0x0000000000400000-0x00000000005CA8A1-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
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

588 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

Skcsk.exeSkcsk.exe

pid process

796 Skcsk.exe
1772 Skcsk.exe

pid	process
588	cmd.exe

pid	process
796	Skcsk.exe
1772	Skcsk.exe

Drops file in System32 directory 2 IoCs

Processes:

1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Skcsk.exe	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe
File opened for modification	C:\Windows\SysWOW64\Skcsk.exe	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1892 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe

description pid process

Token: SeIncBasePriorityPrivilege 2000 1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe

pid	process
1892	PING.EXE

description	pid	process
Token: SeIncBasePriorityPrivilege	2000	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exeSkcsk.execmd.exe

description	pid	process	target process
PID 2000 wrote to memory of 588	2000	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe	cmd.exe
PID 2000 wrote to memory of 588	2000	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe	cmd.exe
PID 2000 wrote to memory of 588	2000	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe	cmd.exe
PID 2000 wrote to memory of 588	2000	1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe	cmd.exe
PID 796 wrote to memory of 1772	796	Skcsk.exe	Skcsk.exe
PID 796 wrote to memory of 1772	796	Skcsk.exe	Skcsk.exe
PID 796 wrote to memory of 1772	796	Skcsk.exe	Skcsk.exe
PID 796 wrote to memory of 1772	796	Skcsk.exe	Skcsk.exe
PID 588 wrote to memory of 1892	588	cmd.exe	PING.EXE
PID 588 wrote to memory of 1892	588	cmd.exe	PING.EXE
PID 588 wrote to memory of 1892	588	cmd.exe	PING.EXE
PID 588 wrote to memory of 1892	588	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe
"C:\Users\Admin\AppData\Local\Temp\1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000

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\1993B1~1.EXE > nul
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:588

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
3⤵
- Runs ping.exe
PID:1892

C:\Windows\SysWOW64\Skcsk.exe
C:\Windows\SysWOW64\Skcsk.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:796

C:\Windows\SysWOW64\Skcsk.exe
C:\Windows\SysWOW64\Skcsk.exe -acsi
2⤵
- Executes dropped EXE
PID:1772

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\Skcsk.exe
Filesize
840KB

MD5
29134e6a1688ce88edf31e1146be282d

SHA1
5aea9e4de2a42900f26304bab5cf1dc6954dfc41

SHA256
1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c

SHA512
9b3baba119241a7ea0fd5671ab5a967fd347b2cbb09eb90e9f63e945daae0254fce9dcf020ab035cc1f481033a0ca9cf298a7b043b96f7b65c9fd83445876a2a

Download Submit
C:\Windows\SysWOW64\Skcsk.exe
Filesize
840KB

MD5
29134e6a1688ce88edf31e1146be282d

SHA1
5aea9e4de2a42900f26304bab5cf1dc6954dfc41

SHA256
1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c

SHA512
9b3baba119241a7ea0fd5671ab5a967fd347b2cbb09eb90e9f63e945daae0254fce9dcf020ab035cc1f481033a0ca9cf298a7b043b96f7b65c9fd83445876a2a

Download Submit
C:\Windows\SysWOW64\Skcsk.exe
Filesize
840KB

MD5
29134e6a1688ce88edf31e1146be282d

SHA1
5aea9e4de2a42900f26304bab5cf1dc6954dfc41

SHA256
1993b188bfa89dca45d1db1e55d6af3c68aa24236366c84ae82320690c4f9f5c

SHA512
9b3baba119241a7ea0fd5671ab5a967fd347b2cbb09eb90e9f63e945daae0254fce9dcf020ab035cc1f481033a0ca9cf298a7b043b96f7b65c9fd83445876a2a

Download Submit
memory/796-72-0x0000000000400000-0x00000000005CA8A1-memory.dmp

Filesize
1.8MB

Download
memory/796-75-0x0000000000400000-0x00000000005CA8A1-memory.dmp

Filesize
1.8MB

Download
memory/1772-76-0x0000000010000000-0x00000000101A0000-memory.dmp

Filesize
1.6MB

Download
memory/1772-83-0x0000000000400000-0x00000000005CA8A1-memory.dmp

Filesize
1.8MB

Download
memory/1772-84-0x0000000000210000-0x0000000000212000-memory.dmp

Filesize
8KB

Download
memory/2000-54-0x0000000010000000-0x00000000101A0000-memory.dmp

Filesize
1.6MB

Download
memory/2000-62-0x0000000000400000-0x00000000005CA8A1-memory.dmp

Filesize
1.8MB

Download
memory/2000-63-0x0000000000270000-0x0000000000272000-memory.dmp

Filesize
8KB

Download
memory/2000-73-0x0000000000400000-0x00000000005CA8A1-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads