gh0strat | 13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734

General

Target
13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe
Size 1.3MB
Sample260804-nl85msad29
SHA256 13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734
MD5 5593206bffa3dc7f7d922a07d0a02dee
SHA1 e9e3e1ad77b3094e2843f14349adfb088aa2a425
SHA512 9e9cf4661819c0a3092ba6cb7ef7edc440f458ad5c69b9ecc285d8c4463672ab12ff184c3b1c3e930528e20a6a7b7aeb06695059d6ad0c133aad44dcfeced428
SSDEEP 24576:QOyHutimZ9VSly2hVvHW6qMnSbTBBhBMND:ZHPkVOBTK
TLSH
T142557A591BAB4256DB5837B9C8A6A69409090F432F58C4B15E311E1EBD2734FFC23EBC
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Family: 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
Family: PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4160-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4160-19-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/files/0x000e00000001c518-26.dat	family_gh0strat
behavioral2/memory/4816-43-0x0000000000400000-0x000000000042B000-memory.dmp	family_gh0strat

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	4160	sainbox.exe

Drops file in Drivers directory 1 IoCs

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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\windowsÏµÍ³Ö÷¶¯·ÀÓù\Parameters\ServiceDll = "C:\\Windows\\system32\\240723328.jpg"	1.exe

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	sainbox.exe

Executes dropped EXE 3 IoCs

pid	Process
4160	sainbox.exe
4816	1.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe

Loads dropped DLL 3 IoCs

pid	Process
4816	1.exe
1100	svchost.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240723328.jpg	1.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	1.exe
File created	C:\Windows\SysWOW64\windowsÏµÍ³Ö÷¶¯·ÀÓù.exe	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\1.exe	sainbox.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3516	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
3516	cmd.exe
4592	PING.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4592	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
2920	windowsÏµÍ³Ö÷¶¯·ÀÓù.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4160	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1848	13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe
Token: SeLoadDriverPrivilege	4160	sainbox.exe
Token: 33	4160	sainbox.exe
Token: SeIncBasePriorityPrivilege	4160	sainbox.exe
Token: 33	4160	sainbox.exe
Token: SeIncBasePriorityPrivilege	4160	sainbox.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 4160	1848	13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe	89
PID 1848 wrote to memory of 3516	1848	13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe	90
PID 3516 wrote to memory of 4592	3516	cmd.exe	92
PID 4160 wrote to memory of 4816	4160	sainbox.exe	93
PID 1100 wrote to memory of 2920	1100	svchost.exe	98

C:\Users\Admin\AppData\Local\Temp\13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe
"C:\Users\Admin\AppData\Local\Temp\13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe"
  2⤵
  - Downloads MZ/PE file
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Windows\1.exe
    "C:\Windows\1.exe"
    3⤵
    - Server Software Component: Terminal Services DLL
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    PID:4816
- 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\13D9D5~1.EXE > nul
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3516
- - 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:4592

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "windowsÏµÍ³Ö÷¶¯·ÀÓù"
1⤵
PID:2756

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "windowsÏµÍ³Ö÷¶¯·ÀÓù"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Windows\SysWOW64\windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
  C:\Windows\system32\windowsÏµÍ³Ö÷¶¯·ÀÓù.exe "c:\windows\system32\240723328.jpg",MainInstall
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2920

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "windows╧╡═│╓≈╢»╖└╙∙"
1⤵
PID:3960

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

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

Replay Monitor

Loading Replay Monitor...

Downloads

sainbox.exe

Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
Size 1.3MB
SHA256 13d9d50bacb18bd9066e2ababc03f3619873d33df5171c8023a3ebad3b690734
MD5 5593206bffa3dc7f7d922a07d0a02dee
SHA1 e9e3e1ad77b3094e2843f14349adfb088aa2a425
SHA512 9e9cf4661819c0a3092ba6cb7ef7edc440f458ad5c69b9ecc285d8c4463672ab12ff184c3b1c3e930528e20a6a7b7aeb06695059d6ad0c133aad44dcfeced428
SSDEEP 24576:QOyHutimZ9VSly2hVvHW6qMnSbTBBhBMND:ZHPkVOBTK
TLSH
T142557A591BAB4256DB5837B9C8A6A69409090F432F58C4B15E311E1EBD2734FFC23EBC
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

1.exe

Path C:\Windows\1.exe
Size 156KB
SHA256 55866f0c5b53419c79d7be9b565e338091f4aa755a278eaca887f03ece544c7a
MD5 e8f5f7ca247b5b70ee3f80df6cadf8bf
SHA1 8fbf3e3262fa5066c5d21548805ddc11be5acf47
SHA512 ec40055a365aa522c1d9167cc1f700fed82015a197fad951562c229d5bd55291f2bac551a036c137b6132d001e94d3b73777b8d183f65fb8b433123fe5c551b5
SSDEEP 3072:edlKPwx3EuRHSBtL7/u+YuzkTESlTmkYe:edlnx+7/u+YuIbI
TLSH
T1A0F36A1774F0BBB6C34382751F658A3BB2E9E13CDD124993634B6B091F34BD28E6A251
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

240723328.jpg

Path C:\Windows\SysWOW64\240723328.jpg
Size 56KB
SHA256 3e68e10b801b293c273ac42889464e036dc98a6ed7711d0ac8a3cc3773e46dda
MD5 5a4a2ddb80a50b05b765c3c9ed7ccb50
SHA1 887607937d2f00e134ffa6623c117664224712c2
SHA512 ba67330dccbe8c4af51142bb1ad2754d2aaaac490b9af8e24fe4ea2ace951c6870f0477eda421fc5f6347ea063a4d5b6d592f08787646fe207cca61961e2ece1
SSDEEP 768:jDFDcEAmYze1xehXKss+K/jJ3o1rlHOb8O9lQf4gontQyBdm77u8I5:ROxq+KseVo1FObntnfdmHuB5
TLSH
T1FE433A02958480F3F18A023438BA2B7789FFA9F512D565035FA7FDA95C73265F51E213
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ini.ini

Path C:\Windows\SysWOW64\ini.ini
Size 44B
SHA256 709d0b8328cc114e652d69a4926a2404e32f4d39b4193109f46a5f3d6136450a
MD5 0fc79b89f9def1df65cd1cdfdeccc393
SHA1 4728a183028f7fd561abd550a0e158f7c0215bc2
SHA512 6ab5eb132fa34e2632617d845857aaaa1bdcc8120a651c17e0c84a88ea8fa8f02b0bf09478a5b7a306ef63f110300c10fe7a33afbc3f7fd84a859d01acaa9971
MD5 SHA1 SHA512

Submit Download

windowsÏµÍ³Ö÷¶¯·ÀÓù.exe

Path C:\Windows\SysWOW64\windowsÏµÍ³Ö÷¶¯·ÀÓù.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4160-19-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/4816-43-0x0000000000400000-0x000000000042B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads