gh0strat | a3b2e0301aa2339298711bc117e1820c3e52dd8259eb0fbb4c9b2bef69032e6a

General

Target

a3b2e0301aa2339298711bc117e1820c3e52dd8259eb0fbb4c9b2bef69032e6a.dll
Size

430KB
MD5

c7db6d02efd1706edee4bb150185ff53
SHA1

5e51254ba2465ed007c7140b4a10903d45b5d45c
SHA256

a3b2e0301aa2339298711bc117e1820c3e52dd8259eb0fbb4c9b2bef69032e6a
SHA512

860e25d96a9cca5a9f2578f560d94d13e03c0724a19093f34bcc3d4aad4d85cdd8f0327beabd2d07bfbba74efed58066c11e073ab15a0ae9f0f104e2e6e2ef81
SSDEEP

12288:q9j8pWxJdNxnSJwu416c9y0wiL7s1T37AVu68VnogfN7oSC:q9I+dGwu13UVb+n3fNM

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3928-13-0x0000000010000000-0x00000000101A0000-memory.dmp	purplefox_rootkit
behavioral2/memory/3928-14-0x0000000000400000-0x0000000000543000-memory.dmp	purplefox_rootkit
behavioral2/memory/3928-17-0x0000000010000000-0x00000000101A0000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3928-13-0x0000000010000000-0x00000000101A0000-memory.dmp	family_gh0strat
behavioral2/memory/3928-14-0x0000000000400000-0x0000000000543000-memory.dmp	family_gh0strat
behavioral2/memory/3928-17-0x0000000010000000-0x00000000101A0000-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

Executes dropped EXE 1 IoCs

pid	Process
4652	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4916 set thread context of 3928	4916	rundll32.exe	83

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4916-0-0x0000000010000000-0x00000000100FE000-memory.dmp	upx
behavioral2/memory/3928-2-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-1-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-9-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-7-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-6-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-8-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-3-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-10-0x0000000000400000-0x0000000000543000-memory.dmp	upx
behavioral2/memory/3928-14-0x0000000000400000-0x0000000000543000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NetMeeting\svchost.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\NetMeeting\svchost.exe	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
3632	cmd.exe
1516	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1516	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3928	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 4916	944	rundll32.exe	82
PID 944 wrote to memory of 4916	944	rundll32.exe	82
PID 944 wrote to memory of 4916	944	rundll32.exe	82
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 4916 wrote to memory of 3928	4916	rundll32.exe	83
PID 3928 wrote to memory of 3632	3928	svchost.exe	85
PID 3928 wrote to memory of 3632	3928	svchost.exe	85
PID 3928 wrote to memory of 3632	3928	svchost.exe	85
PID 3632 wrote to memory of 1516	3632	cmd.exe	87
PID 3632 wrote to memory of 1516	3632	cmd.exe	87
PID 3632 wrote to memory of 1516	3632	cmd.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3b2e0301aa2339298711bc117e1820c3e52dd8259eb0fbb4c9b2bef69032e6a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3b2e0301aa2339298711bc117e1820c3e52dd8259eb0fbb4c9b2bef69032e6a.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4916
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe fagahawhawhgawccc
    3⤵
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3928
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Windows\SysWOW64\svchost.exe > nul
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Suspicious use of WriteProcessMemory
      PID:3632
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 2 127.0.0.1
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:1516

C:\Program Files (x86)\NetMeeting\svchost.exe
"C:\Program Files (x86)\NetMeeting\svchost.exe" -auto
1⤵
- Executes dropped EXE
PID:4652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

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

Replay Monitor

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Downloads

C:\Program Files (x86)\NetMeeting\svchost.exe

Filesize
45KB

MD5
b7c999040d80e5bf87886d70d992c51e

SHA1
a8ed9a51cc14ccf99b670e60ebbc110756504929

SHA256
5c3257b277f160109071e7e716040e67657341d8c42aa68d9afafe1630fcc53e

SHA512
71ba2fbd705e51b488afe3bb33a67212cf297e97e8b1b20ada33e16956f7ec8f89a79e04a4b256fd61a442fada690aff0c807c2bdcc9165a9c7be3de725de309

Download Submit
memory/3928-8-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-11-0x0000000077383000-0x0000000077384000-memory.dmp

Filesize
4KB

Download
memory/3928-3-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-12-0x0000000077360000-0x0000000077450000-memory.dmp

Filesize
960KB

Download
memory/3928-10-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-7-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-6-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-16-0x0000000077360000-0x0000000077450000-memory.dmp

Filesize
960KB

Download
memory/3928-9-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-1-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-25-0x0000000077360000-0x0000000077450000-memory.dmp

Filesize
960KB

Download
memory/3928-15-0x0000000077360000-0x0000000077450000-memory.dmp

Filesize
960KB

Download
memory/3928-13-0x0000000010000000-0x00000000101A0000-memory.dmp

Filesize
1.6MB

Download
memory/3928-14-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/3928-17-0x0000000010000000-0x00000000101A0000-memory.dmp

Filesize
1.6MB

Download
memory/3928-2-0x0000000000400000-0x0000000000543000-memory.dmp

Filesize
1.3MB

Download
memory/4916-0-0x0000000010000000-0x00000000100FE000-memory.dmp

Filesize
1016KB

Download

Analysis

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