gh0strat | b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-06-2024 23:10

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General

Target

b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
Size

2.4MB
MD5

5b077a5bdd739d0cf420999cc31d9410
SHA1

a41aa0f5c60a0d972e802d83333a7d7250791df8
SHA256

b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db
SHA512

5a5d19e8d60be2540d6262e2ab70922b8d5ae21a42261d88d034ef4b54c4c35f617e5c46ac17da58eb104552cb71103d2ab1f94a404c22a253ea3beead56cc5d
SSDEEP

49152:8QZAdVyVT9n/Gg0P+WhopanZHHjdPXZLHS+HHAtFHHTHh2HHRHHQ4eHGfbG2zXXy:9GdVyVT9nOgmhYabbGwXXu0atbG

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1620-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1620-12-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1620-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1696-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1696-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1324-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1324-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1324-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/1620-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1620-12-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1620-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1696-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0007000000016c04-33.dat	family_gh0strat
behavioral1/memory/1696-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1324-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1324-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1324-44-0x0000000010000000-0x00000000101B6000-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

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\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\259398368.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
1620	svchost.exe
1696	TXPlatforn.exe
1732	svchos.exe
1324	TXPlatforn.exe
2932	HD_b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
2008	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 8 IoCs

pid	Process
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
1696	TXPlatforn.exe
1732	svchos.exe
2252	svchost.exe
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
2252	svchost.exe
2008	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1620-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1620-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1620-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1620-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1696-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1696-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1324-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1324-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1324-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
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\259398368.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.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
2636	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1324	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1620	svchost.exe
Token: SeLoadDriverPrivilege	1324	TXPlatforn.exe
Token: 33	1324	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1324	TXPlatforn.exe
Token: 33	1324	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1324	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 2368 wrote to memory of 1620	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	28
PID 1620 wrote to memory of 3028	1620	svchost.exe	30
PID 1620 wrote to memory of 3028	1620	svchost.exe	30
PID 1620 wrote to memory of 3028	1620	svchost.exe	30
PID 1620 wrote to memory of 3028	1620	svchost.exe	30
PID 2368 wrote to memory of 1732	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	31
PID 2368 wrote to memory of 1732	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	31
PID 2368 wrote to memory of 1732	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	31
PID 2368 wrote to memory of 1732	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	31
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 1696 wrote to memory of 1324	1696	TXPlatforn.exe	33
PID 3028 wrote to memory of 2636	3028	cmd.exe	34
PID 3028 wrote to memory of 2636	3028	cmd.exe	34
PID 3028 wrote to memory of 2636	3028	cmd.exe	34
PID 3028 wrote to memory of 2636	3028	cmd.exe	34
PID 2368 wrote to memory of 2932	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	37
PID 2368 wrote to memory of 2932	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	37
PID 2368 wrote to memory of 2932	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	37
PID 2368 wrote to memory of 2932	2368	b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe	37
PID 2252 wrote to memory of 2008	2252	svchost.exe	38
PID 2252 wrote to memory of 2008	2252	svchost.exe	38
PID 2252 wrote to memory of 2008	2252	svchost.exe	38
PID 2252 wrote to memory of 2008	2252	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
"C:\Users\Admin\AppData\Local\Temp\b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2368
- 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:1620
- - 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:3028
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2636
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:1732
- C:\Users\Admin\AppData\Local\Temp\HD_b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe
  2⤵
  - Executes dropped EXE
  PID:2932

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1696
- 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:1324

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2572

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:2252
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259398368.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2008

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.7MB

MD5
cb70619250bea133dc8616e2c1d125c7

SHA1
6a217333663a4cc1243ea3a2e50631cfed65d71d

SHA256
4a5f969dda4afa16744b9f13ef4a5a5d521d82e97c6b27407e3b7404c43c15a5

SHA512
e68165574bea1e3c0a7ce01063a3bd8d4d2006ca56c478d1ad0851ef314316cd42aa50c58958997b3a4ad185d02074bb88a53e0ec6ff5e631ed141ce9f244ab7

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

Filesize
1.8MB

MD5
cfa63097e8aaa2cb57dd97cb723c680a

SHA1
69fcbfce250d82667a25689ab9295cb1847dadc6

SHA256
e7c0bed0fe2edc8ca710396fc11af791634332afc6542b80f74f533cf34b5992

SHA512
4b05961dec70507b5b9c8f9e8cdabd5ba027d9e6129f0570cf4be17fbcdbad52dccdb7ae603a051a33f543031e77dc57b26a09afa0a77352815fe8b2097e845d

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b7f3bd40129ec1b3f6e203cc1271645d8cb6546a506a3fc9a4c1f0164251c2db.exe

Filesize
635KB

MD5
c3597fe7f137d74680d6379837c7feb6

SHA1
3bfbbd3530994f5ad6631fcf5dac187c9b1886c1

SHA256
fb167aae750f8552729ccb97c470a8ff20a2ba4ab53cb503e3fdbd28d11088f1

SHA512
d9f3f485eaf4f78b74e4d03eef18c8930c86a7c91464ea832c1ffc2805a0d6d01a5b5a19819919806dec7a3e1a1c909051531f139beb4c69803a1b73a5bbc4a9

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259398368.txt

Filesize
50KB

MD5
53adbed1596c02805822ef5febbb7c9f

SHA1
b85f1d054e3484182d2296ef52fbbe7809cef3af

SHA256
23945af86c9f9606fee66a44bead3849ff11e192cfe341a3af461b864ef00a3d

SHA512
2158d57c57d81c6445ec145438f737394d667f83f1297d836f28234eb97b848900a74262a341a525bacf1fe280cce34ddd8516ad0f73fe2d6f54dd54f1b3a931

Download Submit
\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1324-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1324-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1324-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1620-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1620-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1620-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1620-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1696-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1696-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download