asyncrat | 8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 22:13

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General

Target

8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
Size

2.7MB
MD5

afc02c49b1e05afe28d9608fca9d9f9f
SHA1

c823a9d175fa7a5c5d78a46c47e932045a61eb4a
SHA256

8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c
SHA512

c4d0dd4139743982c9e0625fcb229716492be5adbbe7afb441dc75c3396618ac31b2cc356298e91d947451104b5482fd2306dc68c6f140822719298ad89158ee
SSDEEP

24576:1CwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHO:1CwsbCANnKXferL7Vwe/Gg0P+WhDxs

Score

10^/10

asyncrat gh0strat purplefox default discovery persistence rat rootkit trojan upx

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

150.158.169.143:4449

Mutex

yjsgmyewwmp

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/5004-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5004-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/5004-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1660-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1660-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1660-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b9a-5.dat	family_gh0strat
behavioral2/memory/5004-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5004-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/5004-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1660-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1660-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1660-47-0x0000000010000000-0x00000000101B6000-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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000a000000023ba0-33.dat	family_asyncrat

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240623015.txt"	R.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"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

pid	Process
3732	R.exe
5004	N.exe
3808	TXPlatfor.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
1660	TXPlatfor.exe
404	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
3732	R.exe
3328	svchost.exe
404	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240623015.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5004-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5004-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5004-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/5004-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1660-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1660-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1660-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.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
3384	cmd.exe
4700	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4700	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1660	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	5004	N.exe
Token: SeLoadDriverPrivilege	1660	TXPlatfor.exe
Token: SeDebugPrivilege	3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
Token: 33	1660	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1660	TXPlatfor.exe
Token: 33	1660	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1660	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
3544	HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 708 wrote to memory of 3732	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	83
PID 708 wrote to memory of 3732	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	83
PID 708 wrote to memory of 3732	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	83
PID 708 wrote to memory of 5004	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	86
PID 708 wrote to memory of 5004	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	86
PID 708 wrote to memory of 5004	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	86
PID 5004 wrote to memory of 3384	5004	N.exe	88
PID 5004 wrote to memory of 3384	5004	N.exe	88
PID 5004 wrote to memory of 3384	5004	N.exe	88
PID 3808 wrote to memory of 1660	3808	TXPlatfor.exe	90
PID 3808 wrote to memory of 1660	3808	TXPlatfor.exe	90
PID 3808 wrote to memory of 1660	3808	TXPlatfor.exe	90
PID 708 wrote to memory of 3544	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	89
PID 708 wrote to memory of 3544	708	8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe	89
PID 3384 wrote to memory of 4700	3384	cmd.exe	92
PID 3384 wrote to memory of 4700	3384	cmd.exe	92
PID 3384 wrote to memory of 4700	3384	cmd.exe	92
PID 3328 wrote to memory of 404	3328	svchost.exe	94
PID 3328 wrote to memory of 404	3328	svchost.exe	94
PID 3328 wrote to memory of 404	3328	svchost.exe	94

C:\Users\Admin\AppData\Local\Temp\8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
"C:\Users\Admin\AppData\Local\Temp\8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:708
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3732
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5004
- - 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\N.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3384
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4700
- C:\Users\Admin\AppData\Local\Temp\HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
  C:\Users\Admin\AppData\Local\Temp\HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3544

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:4600

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240623015.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:404

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_8d52e84237855b5866aa9b5b5daef09c190cbecb33496f7a9e6f3c04a95a347c.exe

Filesize
74KB

MD5
4845bb29c6cd1af8677388607b1b0977

SHA1
93e41924568176087c4d8e15ba0b1347a050d285

SHA256
7599dbcbd9b67d3a1fa1877d1254c724df0c1cab79b5017d8764b21a0129613d

SHA512
9972d0b2cef4d2139ba281346e54968fcf51d64a2871fa20f5c24d7f88b7058e5e8731107fcd3a2a76cdf37d9d552adbf85cea73ee15e70110f7ff73adbd27d2

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
2.7MB

MD5
b0965bce360fc792cc2c41fdc48a2891

SHA1
08bf7783b4db0c10673d48d2548f201e5ea17fd7

SHA256
c1f917576cb8d823499d1a0fb33827a7121ef21ca1765970dd5ecf7bc2c016e2

SHA512
5a1dcbd7bdda67e8bc5f9318def2d8ea559e57cd93b296a419868d035c5d4e5065bd3b6b988b568429f674787acb3db30a7e6bc3371f994ce6044f6c9ca82b58

Download Submit
C:\Users\Admin\AppData\Local\Temp\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\R.exe

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240623015.txt

Filesize
899KB

MD5
2ddb1aa3a0941c3307006aa6891e698c

SHA1
f61475a6c86d988507a37eb4074a9030e64f2e4a

SHA256
f3a9a06acb38a2a3003f29bc7cd1bd700c743817598129de84f8379d5718ac41

SHA512
823a055b012b82c138ba084189c6ee8a8f0948a0d6d57b0f23ca1cbaaf3b9a248fbb795e2f2745e8f39a02c618d782ce05df6e4fd165a751601a784d13e8d92b

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1660-47-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1660-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1660-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3544-40-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3808-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3808-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3808-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5004-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5004-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5004-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/5004-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download