gh0strat | d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1

Analysis

max time kernel
53s
max time network
79s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 22:36

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General

Target

d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
Size

272KB
MD5

05437358eb50cd058f40e99d18f56ccd
SHA1

3cb9e3edf8d3f44edb93975f6f05b424ffd2aa2d
SHA256

d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1
SHA512

c62a275aafe841aebef4e4f602539850217c19979c8dc16aac0dce28741daac598379c806cdf1c568660d549144787b38a942acddbccf85205c555d6dcf4f751
SSDEEP

6144:eugeknopsZL02vIMQIp0+TTyYKAKMsHleE8wUVsBJ:eugeknoyOA9VYHHCwasz

Score

10^/10

gh0strat bootkit persistence rat

Malware Config

Signatures

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/1664-55-0x0000000000400000-0x0000000000481000-memory.dmp	family_gh0strat
behavioral1/files/0x00070000000133d3-62.dat	family_gh0strat
behavioral1/files/0x00070000000133d3-63.dat	family_gh0strat
behavioral1/memory/1400-64-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/1664-80-0x0000000000400000-0x0000000000481000-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

Executes dropped EXE 2 IoCs

pid	Process
1400	ctfn0m.ini
1868	ctfn0m.exe

Deletes itself 1 IoCs

pid	Process
1456	cmd.exe

Loads dropped DLL 6 IoCs

pid	Process
1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
1400	ctfn0m.ini
1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
1868	ctfn0m.exe
1868	ctfn0m.exe
1868	ctfn0m.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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	ctfn0m.ini

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\ctfn0m.bat	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
File created	C:\Program Files\Common Files\zidong.bat	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
File created	C:\Program Files\1804\18049999ctfn0n.1804lm	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
File created	C:\Program Files\Common Files\ctfn0m.dll	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
File created	C:\Program Files\Common Files\ctfn0m.ini	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
File opened for modification	C:\Program Files\Common Files\ctfn0m.ini	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1872	sc.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	ctfn0m.ini
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	ctfn0m.ini

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1400	ctfn0m.ini
1400	ctfn0m.ini

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1400	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	28
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1664 wrote to memory of 1868	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	29
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1868 wrote to memory of 600	1868	ctfn0m.exe	30
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1756	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	32
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1664 wrote to memory of 1456	1664	d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe	33
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36
PID 1756 wrote to memory of 1872	1756	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe
"C:\Users\Admin\AppData\Local\Temp\d31027f3a64e38e4d86638909749e334fdabd28b687b3b28cc9c1a25449df9f1.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Program Files\Common Files\ctfn0m.ini
  "C:\Program Files\Common Files\ctfn0m.ini" "C:\Program Files\1804\18049999ctfn0n.1804lm" ServiceMain
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1400
- C:\Documents and Settings\ctfn0m.exe
  "C:\Documents and Settings\ctfn0m.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del C:\DOCUME~1\ctfn0m.exe
    3⤵
    PID:600
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Program Files\Common Files\zidong.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Windows\SysWOW64\sc.exe
    sc config RasAuto start= auto
    3⤵
    - Launches sc.exe
    PID:1872
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del C:\Users\Admin\AppData\Local\Temp\D31027~1.EXE
  2⤵
  - Deletes itself
  PID:1456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Documents and Settings\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
C:\Program Files\1804\18049999ctfn0n.1804lm

Filesize
24.1MB

MD5
02f0396206e2a35a8cb3ee454c6a8a85

SHA1
0b232c415c37369448bd9d5833f96fef63394075

SHA256
d9b4d906df0a084bd382704a25889048e0fd81cf3fbae21cbdb0a00269361659

SHA512
483537e97dad8717b1e727522307f5e397cceef3a94a0c054641864ebec32fbf648988ad0c1d29ff0d1fff132eb7ee604c124e9a33ff3d78e1fea9760332049d

Download Submit
C:\Program Files\Common Files\ctfn0m.ini

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
C:\Program Files\Common Files\ctfn0m.ini

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
C:\Program Files\Common Files\zidong.bat

Filesize
44B

MD5
ea72733acebe9b418fb30d68b5a8c3df

SHA1
4bb0c9592895e902c95a190e9987ba82087060c0

SHA256
e4f714f6333f7f7e3f427072329471a22760d65c92311f3bd4c1d3cf6503a6ee

SHA512
4be94a98d79b54836765d724be21b91ff3a448fe8c921e30f3c929e87f6d0cce7be74005b7f5b2958f1404de601bbad658929a8aa7efbdfa95c6dd93cc15bff6

Download Submit
C:\Users\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
\Program Files\1804\18049999ctfn0n.1804lm

Filesize
24.1MB

MD5
02f0396206e2a35a8cb3ee454c6a8a85

SHA1
0b232c415c37369448bd9d5833f96fef63394075

SHA256
d9b4d906df0a084bd382704a25889048e0fd81cf3fbae21cbdb0a00269361659

SHA512
483537e97dad8717b1e727522307f5e397cceef3a94a0c054641864ebec32fbf648988ad0c1d29ff0d1fff132eb7ee604c124e9a33ff3d78e1fea9760332049d

Download Submit
\Program Files\Common Files\ctfn0m.ini

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
\Users\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
\Users\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
\Users\ctfn0m.exe

Filesize
24.0MB

MD5
178b1ec6535bf33af36f20f5dafeefbd

SHA1
cbde6d0c697fb9fb770da8289f457179ef9faaf2

SHA256
43deae0e5511d47efcdba10c53bd5fefaad2331f90557724e3a7b022b5cb3095

SHA512
176161e44fefe6868aa0d5cd71fb4b1899a575dcb0991cc2d9d1f5344f24293c1bc1b3ca0b0b63ed2ba32e598630de25485a28c7dff752751284f770a55418ec

Download Submit
memory/1400-64-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/1664-83-0x0000000000240000-0x000000000024D000-memory.dmp

Filesize
52KB

Download
memory/1664-72-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/1664-56-0x0000000000240000-0x00000000002C1000-memory.dmp

Filesize
516KB

Download
memory/1664-55-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1664-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1664-80-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1868-77-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1868-75-0x0000000000020000-0x0000000000028000-memory.dmp

Filesize
32KB

Download
memory/1868-74-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download