gh0strat | e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53

General

Target

e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe
Size

206KB
MD5

0c10ab495d4340cf741b252f3611f80b
SHA1

d15bbf0dd3c46574d2bea324dc03298821ec0c94
SHA256

e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53
SHA512

cb880514061b5f98be294ada73c8898868061d7235b748704a0022ef3f9036ce4ab859f387737c1287e88322ad6505fea1e866c29dad0c80d01e4aee5d8cea3f
SSDEEP

3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTF:X2vnSwjaOcADw9cUeCOf

Score

10^/10

gh0strat bootkit discovery persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

C2

107.163.241.193:6520

http://107.163.241.181:16300/

http://107.163.241.182:12354/login.php

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

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

Deletes itself 1 IoCs

pid	Process
1148	rtlba.exe

Executes dropped EXE 2 IoCs

pid	Process
1148	rtlba.exe
1272	krmmjxox.exe

Loads dropped DLL 7 IoCs

pid	Process
1740	cmd.exe
1740	cmd.exe
1148	rtlba.exe
1272	krmmjxox.exe
1272	krmmjxox.exe
1272	krmmjxox.exe
1272	krmmjxox.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\ldsed\\krmmjxox.exe \"c:\\Program Files\\ldsed\\krmmjxox.dll\",Compliance"	krmmjxox.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\u:	krmmjxox.exe
File opened (read-only)	\??\v:	krmmjxox.exe
File opened (read-only)	\??\h:	krmmjxox.exe
File opened (read-only)	\??\l:	krmmjxox.exe
File opened (read-only)	\??\p:	krmmjxox.exe
File opened (read-only)	\??\q:	krmmjxox.exe
File opened (read-only)	\??\r:	krmmjxox.exe
File opened (read-only)	\??\t:	krmmjxox.exe
File opened (read-only)	\??\x:	krmmjxox.exe
File opened (read-only)	\??\i:	krmmjxox.exe
File opened (read-only)	\??\j:	krmmjxox.exe
File opened (read-only)	\??\w:	krmmjxox.exe
File opened (read-only)	\??\a:	krmmjxox.exe
File opened (read-only)	\??\o:	krmmjxox.exe
File opened (read-only)	\??\s:	krmmjxox.exe
File opened (read-only)	\??\y:	krmmjxox.exe
File opened (read-only)	\??\z:	krmmjxox.exe
File opened (read-only)	\??\b:	krmmjxox.exe
File opened (read-only)	\??\e:	krmmjxox.exe
File opened (read-only)	\??\g:	krmmjxox.exe
File opened (read-only)	\??\k:	krmmjxox.exe
File opened (read-only)	\??\m:	krmmjxox.exe
File opened (read-only)	\??\n:	krmmjxox.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	krmmjxox.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ldsed	rtlba.exe
File created	\??\c:\Program Files\ldsed\krmmjxox.dll	rtlba.exe
File created	\??\c:\Program Files\ldsed\krmmjxox.exe	rtlba.exe
File opened for modification	\??\c:\Program Files\ldsed\krmmjxox.exe	rtlba.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.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	rtlba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	krmmjxox.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
1740	cmd.exe
2380	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	krmmjxox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	krmmjxox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2380	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1272	krmmjxox.exe
1272	krmmjxox.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	krmmjxox.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2628	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe
1148	rtlba.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 1740	2628	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe	30
PID 2628 wrote to memory of 1740	2628	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe	30
PID 2628 wrote to memory of 1740	2628	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe	30
PID 2628 wrote to memory of 1740	2628	e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe	30
PID 1740 wrote to memory of 2380	1740	cmd.exe	32
PID 1740 wrote to memory of 2380	1740	cmd.exe	32
PID 1740 wrote to memory of 2380	1740	cmd.exe	32
PID 1740 wrote to memory of 2380	1740	cmd.exe	32
PID 1740 wrote to memory of 1148	1740	cmd.exe	33
PID 1740 wrote to memory of 1148	1740	cmd.exe	33
PID 1740 wrote to memory of 1148	1740	cmd.exe	33
PID 1740 wrote to memory of 1148	1740	cmd.exe	33
PID 1148 wrote to memory of 1272	1148	rtlba.exe	34
PID 1148 wrote to memory of 1272	1148	rtlba.exe	34
PID 1148 wrote to memory of 1272	1148	rtlba.exe	34
PID 1148 wrote to memory of 1272	1148	rtlba.exe	34

C:\Users\Admin\AppData\Local\Temp\e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe
"C:\Users\Admin\AppData\Local\Temp\e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rtlba.exe "C:\Users\Admin\AppData\Local\Temp\e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2380
- - C:\Users\Admin\AppData\Local\Temp\rtlba.exe
    C:\Users\Admin\AppData\Local\Temp\\rtlba.exe "C:\Users\Admin\AppData\Local\Temp\e2f1a7085280e07fc56b74b4c0ab1daebbb64d8649ad0161e811e9f969f49c53.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1148
  - - \??\c:\Program Files\ldsed\krmmjxox.exe
      "c:\Program Files\ldsed\krmmjxox.exe" "c:\Program Files\ldsed\krmmjxox.dll",Compliance C:\Users\Admin\AppData\Local\Temp\rtlba.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1272

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

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

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

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rtlba.exe

Filesize
207KB

MD5
f41f9e510c39803243fad37ffdf304a7

SHA1
09b1412a23d27e8c429515ecd8c10a30932ceeda

SHA256
6be33ea02e3ecad6dca3f19a088a277f8c8ee6a29d3912287f22cad631e7b2a8

SHA512
89aaf46572fb82dc9addd31efc00d3dfd37711d83884d6be202ac7458f151e6653eb27721bda91ca91a73a69d6b995bf046539bede094e0617bc444313e2be94

Download Submit
\??\c:\Program Files\ldsed\krmmjxox.dll

Filesize
141KB

MD5
483ce9710a44c9188cdfc540120129d3

SHA1
4281da04078d3e5dd42842455a06809f96e3fcb8

SHA256
53624c3426ccd2f738e5faddf595cfa39b9e8aa84c1e47536b8153ca33b20dfb

SHA512
ea8271f24a92fc1e6c1dbf360e89f6b05bf19d2169b185763ea8903713006d59da7e324e148a0fb8118831374d2f0b59a51e62077977e6a61fde6fe5fbe58430

Download Submit
\Program Files\ldsed\krmmjxox.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1148-11-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1148-19-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1148-10-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1272-26-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1272-27-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1272-28-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1272-29-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1272-32-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1740-7-0x00000000001A0000-0x00000000001EA000-memory.dmp

Filesize
296KB

Download
memory/2628-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2628-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2628-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2628-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads