gh0strat | e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e

General

Target

e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe
Size

611KB
MD5

e6f235414c77bc3b33cebbb295552938
SHA1

22b6fd5d46161a368a334326383fb9cd8c455f70
SHA256

e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e
SHA512

dcae5613689960ed7409179c5f90dab4806189f36f181016c218c4f9211a1b3b4ff39dd4e2526bb506badab33dbf48fdae4e029558958fd256c8a7a12f55c5a1
SSDEEP

12288:jFpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQo:jFmShDrngEUkDaiJfpSaoNRpMCe8CM8Z

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
behavioral1/memory/2364-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2344-20-0x00000000011F0000-0x0000000001375000-memory.dmp	purplefox_rootkit
behavioral1/memory/2344-24-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral1/memory/2364-21-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral1/memory/936-25-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/936-40-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/2364-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2344-20-0x00000000011F0000-0x0000000001375000-memory.dmp	family_gh0strat
behavioral1/memory/2344-24-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral1/memory/2364-21-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral1/memory/936-25-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/936-40-0x0000000000400000-0x0000000000585000-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	Jbrja.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"	Jbrja.exe

Deletes itself 1 IoCs

pid	Process
2416	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2344	Jbrja.exe
936	Jbrja.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	Jbrja.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Jbrja.exe	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe
File opened for modification	C:\Windows\SysWOW64\Jbrja.exe	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2364-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/files/0x000d0000000141df-9.dat	upx
behavioral1/memory/2344-10-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/2344-24-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/2364-21-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/936-40-0x0000000000400000-0x0000000000585000-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	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Jbrja.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Jbrja.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
2416	cmd.exe
2704	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2704	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
936	Jbrja.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2364	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe
Token: SeLoadDriverPrivilege	936	Jbrja.exe
Token: 33	936	Jbrja.exe
Token: SeIncBasePriorityPrivilege	936	Jbrja.exe
Token: 33	936	Jbrja.exe
Token: SeIncBasePriorityPrivilege	936	Jbrja.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2416	2364	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe	33
PID 2364 wrote to memory of 2416	2364	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe	33
PID 2364 wrote to memory of 2416	2364	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe	33
PID 2364 wrote to memory of 2416	2364	e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe	33
PID 2344 wrote to memory of 936	2344	Jbrja.exe	32
PID 2344 wrote to memory of 936	2344	Jbrja.exe	32
PID 2344 wrote to memory of 936	2344	Jbrja.exe	32
PID 2344 wrote to memory of 936	2344	Jbrja.exe	32
PID 2416 wrote to memory of 2704	2416	cmd.exe	35
PID 2416 wrote to memory of 2704	2416	cmd.exe	35
PID 2416 wrote to memory of 2704	2416	cmd.exe	35
PID 2416 wrote to memory of 2704	2416	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe
"C:\Users\Admin\AppData\Local\Temp\e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364
- 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\E2E5B2~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2416
- - 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:2704

C:\Windows\SysWOW64\Jbrja.exe
C:\Windows\SysWOW64\Jbrja.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\SysWOW64\Jbrja.exe
  C:\Windows\SysWOW64\Jbrja.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:936

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\Jbrja.exe

Filesize
611KB

MD5
e6f235414c77bc3b33cebbb295552938

SHA1
22b6fd5d46161a368a334326383fb9cd8c455f70

SHA256
e2e5b20f0f7bc77272d63f525346b335718fc698cc86f296203a13d91867142e

SHA512
dcae5613689960ed7409179c5f90dab4806189f36f181016c218c4f9211a1b3b4ff39dd4e2526bb506badab33dbf48fdae4e029558958fd256c8a7a12f55c5a1

Download Submit
memory/936-25-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/936-40-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2344-10-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2344-20-0x00000000011F0000-0x0000000001375000-memory.dmp

Filesize
1.5MB

Download
memory/2344-24-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2364-0-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2364-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2364-21-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads