gh0strat | b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859

Analysis

max time kernel
150s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
04/06/2024, 08:30

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General

Target
b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
Size 2.0MB
Sample240604-ked45sbd47
SHA256 b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859
MD5 f08e8fffed2e2962e157a97931066df3
SHA1 fa45154403c093d3d7024e2290dd8488b56554ae
SHA512 d99b83aa5ec9fad5c5059a9a763a2d3b44cfed21c061ef499f1fef8ae4fb251b0f13ecc6a236a94d307ed46ecc79b4fa1e6394059eb55663563e3bbdee36776f
SSDEEP 49152:zQZAdVyVT9n/Gg0P+WhovpeSyn2kZPItx2apeapelI:0GdVyVT9nOgmhPSyn2FtUvlI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4744-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4744-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4744-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4304-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4304-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4304-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4304-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3380-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral2/memory/4744-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4744-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4744-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4304-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4304-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4304-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4304-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3380-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x00070000000233f2-36.dat	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	TXPlatforn.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"	TXPlatforn.exe

Executes dropped EXE 5 IoCs

pid	Process
4744	svchost.exe
4304	TXPlatforn.exe
3380	TXPlatforn.exe
4652	svchos.exe
2924	HD_b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe

Loads dropped DLL 1 IoCs

pid	Process
4652	svchos.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4744-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4744-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4744-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4744-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4304-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4304-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4304-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4304-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4304-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3380-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240592968.txt	svchos.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2132	4652	WerFault.exe	85

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3988	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3380	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4744	svchost.exe
Token: SeLoadDriverPrivilege	3380	TXPlatforn.exe
Token: 33	3380	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3380	TXPlatforn.exe
Token: 33	3380	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3380	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 4744	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	81
PID 3208 wrote to memory of 4744	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	81
PID 3208 wrote to memory of 4744	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	81
PID 4744 wrote to memory of 708	4744	svchost.exe	83
PID 4744 wrote to memory of 708	4744	svchost.exe	83
PID 4744 wrote to memory of 708	4744	svchost.exe	83
PID 4304 wrote to memory of 3380	4304	TXPlatforn.exe	84
PID 4304 wrote to memory of 3380	4304	TXPlatforn.exe	84
PID 4304 wrote to memory of 3380	4304	TXPlatforn.exe	84
PID 3208 wrote to memory of 4652	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	85
PID 3208 wrote to memory of 4652	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	85
PID 3208 wrote to memory of 4652	3208	b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe	85
PID 708 wrote to memory of 3988	708	cmd.exe	88
PID 708 wrote to memory of 3988	708	cmd.exe	88
PID 708 wrote to memory of 3988	708	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
"C:\Users\Admin\AppData\Local\Temp\b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3208
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4744
- - 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\svchost.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:708
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3988
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4652
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 528
    3⤵
    - Program crash
    PID:2132
- C:\Users\Admin\AppData\Local\Temp\HD_b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
  2⤵
  - Executes dropped EXE
  PID:2924

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.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:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4652 -ip 4652
1⤵
PID:2744

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.3MB
SHA256 91c04f37d24780b6037e88d4e9054624be21986e6db45c962d71ab9895894cbb
MD5 ba7504453bf5f4e9bc55d2043bfe6222
SHA1 83adc317bebbe52443a9b51400fc5939cd2d49c9
SHA512 b2e9fbcc41b2231e82ca2d3dcc790f9ce3ed47b2b13d5e580895cb8b25d50ddeb434af752b53167cf40fc622d2a6cf22d658ef5067f4c8aeb69426b9e4045900
SSDEEP 24576:zQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVVwpe0EARyn29:zQZAdVyVT9n/Gg0P+WhovpeSyn29
MD5 SHA1 SHA512 SSDEEP

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HD_b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_b5efaa44355f40b8b81c331b476f8cf8ed3f715c04d36d9eb7be788fd4964859.exe
Size 645KB
SHA256 7addb2269266ac471a690802cab54539b40c2ae5b31e2120fdcf8dfb0ed15dc7
MD5 00eae789b0aab1b0fbd23b830fbf1064
SHA1 e4e5fd089f6ae17c83f073cf91edc9db8189980d
SHA512 23a0e06b39f8b5a932ae5b8f60704ba265332b341ac8bab5b74b2f31f04ce8c7fe6f77278d70c7685cfa894ab0e25a70d89990f5f643b54c07337f90fa5943fb
SSDEEP 12288:HNpZY93s7p1R0Ys/tx2tzwHJem7OzwHJe0Ihf7M:HNpZY67zRfItx2hwpemIwpelDM
MD5 SHA1 SHA512 SSDEEP

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svchos.exe

Path C:\Users\Admin\AppData\Local\Temp\svchos.exe
Size 93KB
SHA256 62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84
MD5 3b377ad877a942ec9f60ea285f7119a2
SHA1 60b23987b20d913982f723ab375eef50fafa6c70
SHA512 af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f
SSDEEP 1536:ktbE7m8nNEQ2O6ReWMWfPbp2WTrW9L3JPPgJ+o5FJYHvh/P6:Bm+2LReWjTrW9rNPgYoTJYHvh
MD5 SHA1 SHA512 SSDEEP

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svchost.exe

Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
Size 377KB
SHA256 6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd
MD5 a4329177954d4104005bce3020e5ef59
SHA1 23c29e295e2dbb8454012d619ca3f81e4c16e85a
SHA512 81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YgL7:HclcceBKlKwAg0Mja/UafOVwbhF
MD5 SHA1 SHA512 SSDEEP

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240592968.txt

Path C:\Windows\SysWOW64\240592968.txt
Size 50KB
SHA256 88770eefd93efb54b3d9a6dcfe2943c09c9c5ab7a83c36e9f9f8bb637b821304
MD5 b238ff86383362f2aad29a8415cbfb16
SHA1 872e5e14028ba92534dd89ace818995e6d453584
SHA512 a2ac23bde91fa2dbeec10765333774e85ef5d790dce79535632f5b2576f6d26543a9ec2be2adca10934416fcada230b634d18a72e4b3930980d6c35def63a695
SSDEEP 1536:WD1N4TeeWMWfPbp2WTrW9L3JPPgJ+o5oJYH:W5ReWjTrW9rNPgYo2JYH
MD5 SHA1 SHA512 SSDEEP

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memory/3380-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-24-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-31-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3380-35-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4304-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4304-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4304-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4304-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4304-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4744-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4744-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4744-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4744-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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