gh0strat | 3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722

General

Target

3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
Size

1.5MB
MD5

26a9bfd0a17ad8afd66c8831e7ef02a4
SHA1

1f2af3a223bdfa2ed68761bc573a19baa177dc0a
SHA256

3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722
SHA512

40256d844b4692fa77a961b14a230fc691b6b74112cd45a28cbae02b98b427bf50ee2054935a3e5d2abf7d5829ecfbb85a015024b37c57640035ceeec6f31e93
SSDEEP

24576:pxZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVFQV1Dfun2B:pxZAdVyVT9n/Gg0P+WhoDDmn2B

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2860-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2860-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2860-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1564-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1564-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1564-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1564-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4516-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4516-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4516-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/2860-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2860-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2860-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1564-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1564-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1564-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/files/0x0006000000016844-27.dat	family_gh0strat
behavioral2/memory/1564-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4516-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4516-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4516-37-0x0000000010000000-0x00000000101B6000-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 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 4 IoCs

pid	Process
2860	svchost.exe
1564	TXPlatforn.exe
668	svchos.exe
4516	TXPlatforn.exe

Loads dropped DLL 1 IoCs

pid	Process
668	svchos.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2860-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2860-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2860-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2860-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1564-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1564-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1564-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1564-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1564-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4516-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4516-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4516-37-0x0000000010000000-0x00000000101B6000-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\241366562.txt	svchos.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
972	668	WerFault.exe	100
3296	668	WerFault.exe	100

System Location Discovery: System Language Discovery 1 TTPs 6 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	TXPlatforn.exe
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	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.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
520	cmd.exe
4920	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4920	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4516	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2860	svchost.exe
Token: SeLoadDriverPrivilege	4516	TXPlatforn.exe
Token: 33	4516	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4516	TXPlatforn.exe
Token: 33	4516	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4516	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2860	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	93
PID 2408 wrote to memory of 2860	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	93
PID 2408 wrote to memory of 2860	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	93
PID 2860 wrote to memory of 520	2860	svchost.exe	98
PID 2860 wrote to memory of 520	2860	svchost.exe	98
PID 2860 wrote to memory of 520	2860	svchost.exe	98
PID 2408 wrote to memory of 668	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	100
PID 2408 wrote to memory of 668	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	100
PID 2408 wrote to memory of 668	2408	3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe	100
PID 1564 wrote to memory of 4516	1564	TXPlatforn.exe	101
PID 1564 wrote to memory of 4516	1564	TXPlatforn.exe	101
PID 1564 wrote to memory of 4516	1564	TXPlatforn.exe	101
PID 520 wrote to memory of 4920	520	cmd.exe	105
PID 520 wrote to memory of 4920	520	cmd.exe	105
PID 520 wrote to memory of 4920	520	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe
"C:\Users\Admin\AppData\Local\Temp\3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2408
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2860
- - 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⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:520
  - - 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:4920
- 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
  - System Location Discovery: System Language Discovery
  PID:668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 444
    3⤵
    - Program crash
    PID:972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 528
    3⤵
    - Program crash
    PID:3296

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1564
- 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:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 668 -ip 668
1⤵
PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 668 -ip 668
1⤵
PID:4540

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=4288,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=1040 /prefetch:8
1⤵
PID:2088

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 Information Discovery

1

T1082

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

Filesize
1.5MB

MD5
26a9bfd0a17ad8afd66c8831e7ef02a4

SHA1
1f2af3a223bdfa2ed68761bc573a19baa177dc0a

SHA256
3338262d85dd8cbc5bb1538715025f57d9df3630285eef95d22a753b5d9e5722

SHA512
40256d844b4692fa77a961b14a230fc691b6b74112cd45a28cbae02b98b427bf50ee2054935a3e5d2abf7d5829ecfbb85a015024b37c57640035ceeec6f31e93

Download Submit
C:\Users\Admin\AppData\Local\Temp\RCX98FF.tmp

Filesize
1.5MB

MD5
c5cc617fcc8c8de962d9a1dc623b59fb

SHA1
52050c6564106ab325b1077ad78a9ea5b776307e

SHA256
d33cde822d2c70ab46d409f803fdf178b6cd524c5f4250fe47bb51fa140173a6

SHA512
e23e3a5cc2ed20ffd0bfe2b5bd51d992066dfbb1636261d5781f8db8b723f8e333c160fbdb84563a62d6a8289504143b793468c874ba180e370ecfc41e7ed8c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\X.ico

Filesize
69KB

MD5
e33fb6d686b1a8b171349572c5a33f67

SHA1
29f24fe536adf799b69b63c83efadc1bce457a54

SHA256
020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450

SHA512
cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
C:\Windows\SysWOW64\241366562.txt

Filesize
50KB

MD5
37ad2e7e113d6018f1d579859b9e6811

SHA1
0ea8ce4e0f9098c8607461e5948fc6656e312755

SHA256
81782734b4cf139e7664b31975bb6ec79d038819f678c510659743190ccb0789

SHA512
39b17fef5c7d6d3b56776d3e953800fae7450030de094273a66eec3bc2be78a44eff7aeb9411d6d056208565971d3e863dd8a2034b5e11bae49a2378daf0b8e1

Download Submit
memory/1564-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1564-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1564-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1564-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1564-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-4-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4516-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4516-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4516-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads