gh0strat | 8ae38fbde84513a1b6841914a2d124ead1d27301552167daff12197b12fbde71

Analysis

max time kernel
121s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 22:19

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General

Target
20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
Size 4.5MB
Sample240527-18va8acb31
SHA256 8ae38fbde84513a1b6841914a2d124ead1d27301552167daff12197b12fbde71
MD5 b5b7e39b5633b6a1a9f4aa036e8a20cf
SHA1 375e064ac683970e1a3eee54f8a446b3c9d66f5c
SHA512 19b099ec6eb746f4524f81fdedbb1538c97b0c7042b3a50f48ca23a4a5315f0bff17a090dd8d84dfcac561ddbea854921be530d7c0b52c2df75248d260318fd1
SSDEEP 98304:8GdVyVT9nOgmhDILDmn2B0f6ijFUsKeeDihnYPMPZ0Ig:jWT9nO7+vmnM0fzjSLDSYP0Ng
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4788-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4788-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3596-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3980-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3980-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3980-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/4788-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4788-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x0007000000023404-35.dat	family_gh0strat
behavioral2/memory/3596-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3596-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3980-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3980-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3980-17-0x0000000010000000-0x00000000101B6000-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
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 DLL path for service in the 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\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240595890.txt"	svchos.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 6 IoCs

pid	Process
4788	svchost.exe
3980	TXPlatforn.exe
1100	svchos.exe
3596	TXPlatforn.exe
1896	HD_20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
5700	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
1100	svchos.exe
4548	svchost.exe
5700	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4788-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4788-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3596-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3980-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3980-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3980-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3980-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 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\240595890.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2564	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3596	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4788	svchost.exe
Token: SeLoadDriverPrivilege	3596	TXPlatforn.exe
Token: 33	3596	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3596	TXPlatforn.exe
Token: 33	3596	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3596	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 4788	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	81
PID 4496 wrote to memory of 4788	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	81
PID 4496 wrote to memory of 4788	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	81
PID 4788 wrote to memory of 332	4788	svchost.exe	83
PID 4788 wrote to memory of 332	4788	svchost.exe	83
PID 4788 wrote to memory of 332	4788	svchost.exe	83
PID 4496 wrote to memory of 1100	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	84
PID 4496 wrote to memory of 1100	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	84
PID 4496 wrote to memory of 1100	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	84
PID 3980 wrote to memory of 3596	3980	TXPlatforn.exe	85
PID 3980 wrote to memory of 3596	3980	TXPlatforn.exe	85
PID 3980 wrote to memory of 3596	3980	TXPlatforn.exe	85
PID 4496 wrote to memory of 1896	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	88
PID 4496 wrote to memory of 1896	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	88
PID 4496 wrote to memory of 1896	4496	20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe	88
PID 332 wrote to memory of 2564	332	cmd.exe	90
PID 332 wrote to memory of 2564	332	cmd.exe	90
PID 332 wrote to memory of 2564	332	cmd.exe	90
PID 4548 wrote to memory of 5700	4548	svchost.exe	98
PID 4548 wrote to memory of 5700	4548	svchost.exe	98
PID 4548 wrote to memory of 5700	4548	svchost.exe	98

C:\Users\Admin\AppData\Local\Temp\20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
"C:\Users\Admin\AppData\Local\Temp\20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4496
- 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:4788
- - 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:332
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2564
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:1100
- C:\Users\Admin\AppData\Local\Temp\HD_20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
  C:\Users\Admin\AppData\Local\Temp\HD_20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
  2⤵
  - Executes dropped EXE
  PID:1896

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3980
- 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:3596

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:3956

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240595890.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:5700

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_20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_20240527b5b7e39b5633b6a1a9f4aa036e8a20cficedid.exe
Size 2.9MB
SHA256 6ee94c7d0ac2094595f86608a516488585f2ae43d51d7dcdd403facbc65b7a5e
MD5 8fb3955dcb15da141235c4ab17f841e4
SHA1 5e80737396c193161ab0b85d90e98ddeabf424f7
SHA512 ac52c70d38609f319ae2f8e04addbf7f19e39bfa9c7201874689efe5c023ed18119743850439c75f8c109de6006e02ac6125f517173894e9eb5a7944c063f853
SSDEEP 49152:zTdzMNOsx3R+ijGgz4M/3ZDFPUmaeeDRoh2xOfpDyYJNo/hMAMPphx96S7kU0PAg:90f6ijFUsKeeDihnYPMPZ0Ig
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.6MB
SHA256 ae3c2fecbbfbb160ed9bd9f87443c45f6aecce528d7595921c40b0277ac3bc81
MD5 6fe8baf37adedfe598c1f5ae517219bd
SHA1 826a3fb6c24942633e59b67e78c3a8ef6f1c2845
SHA512 9438c023d54f34e90ccd70d4f9f0717bd5c10cdfd3e374eec211035230c820c4a6512528f6682cbd4801fd77e762f5ddf86d8c115372af35c3529031b9be56d7
SSDEEP 24576:rQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVXrk4gV1Dfun2G:rQZAdVyVT9n/Gg0P+Who8rkLDmn2G
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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240595890.txt

Path C:\Windows\SysWOW64\240595890.txt
Size 50KB
SHA256 b62528a424ef2946400c420bf9e333817d215d7931279f789eec6e25d1493e7c
MD5 b5d2d0a9388e86326689ddd75dd437ce
SHA1 2536db98e324f031622384d9516d3b7c1b1191f2
SHA512 80aba4d7544a1ab2f2337ce5e8eed6907aa1903ad683407c45bc2a4700aa1f614bd1ea9108d54fdfe3a9c24c4cf126eabb8c3846b15452664de56566c0bc6608
SSDEEP 1536:WD1N4TeeWMWfPbp2WTrW9L3JPPgJ+o5vJYH:W5ReWjTrW9rNPgYodJYH
MD5 SHA1 SHA512 SSDEEP

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Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Path C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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memory/3596-45-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3596-31-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3596-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3596-44-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3980-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3980-39-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3980-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3980-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4788-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4788-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4788-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4788-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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