gh0strat | 16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50

General

Target

16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe
Size

611KB
MD5

7764290cdba013b7b0b67cabdc6b0c65
SHA1

f394fb2d24715883b989441bdf790790918f7b5b
SHA256

16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50
SHA512

69ed66ffe1138c44f76e955e73f9b8646a8fad04ba595f84d283adb4a4d673aa6118c2bd4aa755a592e860111566dbf5ef3883e710d1fd11f269422eda1f9239
SSDEEP

12288:1FpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:1FmShDrngEUkDaiJfpSaoNRpMCe8CM8T

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/768-2-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4292-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4292-21-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/768-19-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/1036-37-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/768-2-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4292-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4292-21-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/768-19-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/1036-37-0x0000000000400000-0x0000000000585000-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
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	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

Executes dropped EXE 2 IoCs

pid	Process
4292	Jbrja.exe
1036	Jbrja.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/768-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/files/0x000900000002362a-9.dat	upx
behavioral2/memory/4292-21-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/768-19-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/1036-37-0x0000000000400000-0x0000000000585000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Jbrja.exe	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe
File opened for modification	C:\Windows\SysWOW64\Jbrja.exe	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.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	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.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
3324	cmd.exe
2436	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2436	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1036	Jbrja.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	768	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe
Token: SeLoadDriverPrivilege	1036	Jbrja.exe
Token: 33	1036	Jbrja.exe
Token: SeIncBasePriorityPrivilege	1036	Jbrja.exe
Token: 33	1036	Jbrja.exe
Token: SeIncBasePriorityPrivilege	1036	Jbrja.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 768 wrote to memory of 3324	768	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe	91
PID 768 wrote to memory of 3324	768	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe	91
PID 768 wrote to memory of 3324	768	16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe	91
PID 4292 wrote to memory of 1036	4292	Jbrja.exe	92
PID 4292 wrote to memory of 1036	4292	Jbrja.exe	92
PID 4292 wrote to memory of 1036	4292	Jbrja.exe	92
PID 3324 wrote to memory of 2436	3324	cmd.exe	94
PID 3324 wrote to memory of 2436	3324	cmd.exe	94
PID 3324 wrote to memory of 2436	3324	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe
"C:\Users\Admin\AppData\Local\Temp\16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:768
- 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\16D489~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3324
- - 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:2436

C:\Windows\SysWOW64\Jbrja.exe
C:\Windows\SysWOW64\Jbrja.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4292
- 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:1036

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4400,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8
1⤵
PID:1580

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
7764290cdba013b7b0b67cabdc6b0c65

SHA1
f394fb2d24715883b989441bdf790790918f7b5b

SHA256
16d4891f89ecc141447473580344971ef4ca1f5d47dcb01e19569d7d85abab50

SHA512
69ed66ffe1138c44f76e955e73f9b8646a8fad04ba595f84d283adb4a4d673aa6118c2bd4aa755a592e860111566dbf5ef3883e710d1fd11f269422eda1f9239

Download Submit
memory/768-0-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/768-2-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/768-19-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/1036-37-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/4292-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4292-21-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads