gh0strat | 4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155

General

Target

4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe
Size

1.3MB
MD5

d07aeb02fc2fbb3e5e2b3c0b20c4a7d9
SHA1

0b7e5bad0099f255e22b38d4794d66beca05d569
SHA256

4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155
SHA512

c796b01c526b4eca21c6dd0d34e7b0ea5933c860456d5a1fc0e96a8103dd2b629b625782214ad39e5d5812cbb7d758ce19ba74d60ae2fa0f6e443d43132b144a
SSDEEP

24576:8OyHutimZ9VSly2hVvHW6qMnSbTBBhBMN4bqwfZ7W:tHPkVOBTKC3tW

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2304-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2304-0-0x0000000010000000-0x000000001019F000-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	sainbox.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"	sainbox.exe

Deletes itself 1 IoCs

pid	Process
1984	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2584	sainbox.exe
2804	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2584	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1984	cmd.exe
2748	PING.EXE

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2748	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2804	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2304	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe
Token: SeLoadDriverPrivilege	2804	sainbox.exe
Token: 33	2804	sainbox.exe
Token: SeIncBasePriorityPrivilege	2804	sainbox.exe
Token: 33	2804	sainbox.exe
Token: SeIncBasePriorityPrivilege	2804	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 1984	2304	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe	31
PID 2304 wrote to memory of 1984	2304	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe	31
PID 2304 wrote to memory of 1984	2304	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe	31
PID 2304 wrote to memory of 1984	2304	4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe	31
PID 2584 wrote to memory of 2804	2584	sainbox.exe	32
PID 2584 wrote to memory of 2804	2584	sainbox.exe	32
PID 2584 wrote to memory of 2804	2584	sainbox.exe	32
PID 2584 wrote to memory of 2804	2584	sainbox.exe	32
PID 1984 wrote to memory of 2748	1984	cmd.exe	34
PID 1984 wrote to memory of 2748	1984	cmd.exe	34
PID 1984 wrote to memory of 2748	1984	cmd.exe	34
PID 1984 wrote to memory of 2748	1984	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe
"C:\Users\Admin\AppData\Local\Temp\4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- 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\4E3710~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2748

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\sainbox.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\sainbox.exe

Filesize
1.3MB

MD5
d07aeb02fc2fbb3e5e2b3c0b20c4a7d9

SHA1
0b7e5bad0099f255e22b38d4794d66beca05d569

SHA256
4e3710be55804454e68fbb81e460f4db0fbe6a68ccbab2175cc35f6f6b702155

SHA512
c796b01c526b4eca21c6dd0d34e7b0ea5933c860456d5a1fc0e96a8103dd2b629b625782214ad39e5d5812cbb7d758ce19ba74d60ae2fa0f6e443d43132b144a

Download Submit
memory/2304-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads