gh0strat | c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4

General

Target

c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe
Size

10.5MB
MD5

938c7f189a203550006d0f6a221554a4
SHA1

758d8ea5b19cd626eaa05f8ed3b326b4f21d4caf
SHA256

c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4
SHA512

9eefe8203ef9971024f7563d79456c374b97eed101a504f0978db2f230c30c7bf058ba5542f455240a3d81717b5af074638731a2f9c05476d3d6a7c03c5e7c91
SSDEEP

12288:KhymnwJFPNdgBAEHApqePJN1AmLM7uVq9sShyEC:KUmwrl2Ao7sJNlM7ymsShQ

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2084-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4356-12-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/428-21-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/4356-29-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2084-20-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/428-39-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/2084-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4356-12-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/428-21-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/4356-29-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2084-20-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/428-39-0x0000000000400000-0x0000000000547000-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	Dtldt.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"	Dtldt.exe

Executes dropped EXE 2 IoCs

pid	Process
4356	Dtldt.exe
428	Dtldt.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2084-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x0007000000023c9e-10.dat	upx
behavioral2/memory/428-21-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/4356-29-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2084-20-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/428-39-0x0000000000400000-0x0000000000547000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AppPatch\Dtldt.exe	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Dtldt.exe	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.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	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.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
1064	cmd.exe
4136	PING.EXE

Modifies data under HKEY_USERS 3 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4136	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
428	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2084	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe
Token: SeLoadDriverPrivilege	428	Dtldt.exe
Token: 33	428	Dtldt.exe
Token: SeIncBasePriorityPrivilege	428	Dtldt.exe
Token: 33	428	Dtldt.exe
Token: SeIncBasePriorityPrivilege	428	Dtldt.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 428	4356	Dtldt.exe	84
PID 4356 wrote to memory of 428	4356	Dtldt.exe	84
PID 4356 wrote to memory of 428	4356	Dtldt.exe	84
PID 2084 wrote to memory of 1064	2084	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe	85
PID 2084 wrote to memory of 1064	2084	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe	85
PID 2084 wrote to memory of 1064	2084	c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe	85
PID 1064 wrote to memory of 4136	1064	cmd.exe	87
PID 1064 wrote to memory of 4136	1064	cmd.exe	87
PID 1064 wrote to memory of 4136	1064	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe
"C:\Users\Admin\AppData\Local\Temp\c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084
- 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\C6081F~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1064
- - 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:4136

C:\Program Files (x86)\AppPatch\Dtldt.exe
"C:\Program Files (x86)\AppPatch\Dtldt.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Program Files (x86)\AppPatch\Dtldt.exe
  "C:\Program Files (x86)\AppPatch\Dtldt.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:428

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:\Program Files (x86)\AppPatch\Dtldt.exe

Filesize
10.5MB

MD5
938c7f189a203550006d0f6a221554a4

SHA1
758d8ea5b19cd626eaa05f8ed3b326b4f21d4caf

SHA256
c6081f972b53eb18857fdcdebd5949b8afb87396f204e9535890e34eaaac8db4

SHA512
9eefe8203ef9971024f7563d79456c374b97eed101a504f0978db2f230c30c7bf058ba5542f455240a3d81717b5af074638731a2f9c05476d3d6a7c03c5e7c91

Download Submit
memory/428-21-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/428-39-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2084-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2084-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2084-20-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/4356-12-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4356-29-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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