gh0strat | fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d

General

Target

fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe
Size

611KB
MD5

75cdc74befd8c953ee2c022bd8366633
SHA1

141be71c0beb41ad6e955c0721429bd978f2332b
SHA256

fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d
SHA512

057f241e0215c481acb436f6d88e7cbc6eb7b509a6fb63bff993e39f0b64291fddff8867fd81a1115ac9b7ffe402cf45d4092de34435a997a4ccd3431fefdccc
SSDEEP

12288:nFpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:nFmShDrngEUkDaiJfpSaoNRpMCe8CM8T

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/432-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3060-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/432-19-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/3060-28-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/4084-38-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/432-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3060-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/432-19-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/3060-28-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/4084-38-0x0000000000400000-0x0000000000585000-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
Gh0strat family
gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Drops file in Drivers directory 1 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
3060	Gwogw.exe
4084	Gwogw.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Gwogw.exe	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe
File created	C:\Windows\SysWOW64\Gwogw.exe	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/432-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/files/0x000b000000023ba3-9.dat	upx
behavioral2/memory/432-19-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/3060-28-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/4084-20-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/4084-38-0x0000000000400000-0x0000000000585000-memory.dmp	upx

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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gwogw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gwogw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2764	cmd.exe
4872	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4872	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4084	Gwogw.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	432	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe
Token: SeLoadDriverPrivilege	4084	Gwogw.exe
Token: 33	4084	Gwogw.exe
Token: SeIncBasePriorityPrivilege	4084	Gwogw.exe
Token: 33	4084	Gwogw.exe
Token: SeIncBasePriorityPrivilege	4084	Gwogw.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 4084	3060	Gwogw.exe	83
PID 3060 wrote to memory of 4084	3060	Gwogw.exe	83
PID 3060 wrote to memory of 4084	3060	Gwogw.exe	83
PID 432 wrote to memory of 2764	432	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe	84
PID 432 wrote to memory of 2764	432	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe	84
PID 432 wrote to memory of 2764	432	fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe	84
PID 2764 wrote to memory of 4872	2764	cmd.exe	86
PID 2764 wrote to memory of 4872	2764	cmd.exe	86
PID 2764 wrote to memory of 4872	2764	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe
"C:\Users\Admin\AppData\Local\Temp\fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432
- 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\FDA844~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2764
- - 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:4872

C:\Windows\SysWOW64\Gwogw.exe
C:\Windows\SysWOW64\Gwogw.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\Gwogw.exe
  C:\Windows\SysWOW64\Gwogw.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4084

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\Gwogw.exe

Filesize
611KB

MD5
75cdc74befd8c953ee2c022bd8366633

SHA1
141be71c0beb41ad6e955c0721429bd978f2332b

SHA256
fda844b16b91a38417af25d13bd0992c3344de12ebcd0283732a3e0a6e91811d

SHA512
057f241e0215c481acb436f6d88e7cbc6eb7b509a6fb63bff993e39f0b64291fddff8867fd81a1115ac9b7ffe402cf45d4092de34435a997a4ccd3431fefdccc

Download Submit
memory/432-0-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/432-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/432-19-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/3060-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3060-28-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/4084-20-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/4084-38-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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