gh0strat | e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d

General

Target

e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe
Size

20KB
MD5

9a2d73c4e432f7e5b79ca679dfaea411
SHA1

00531b635ccb5f450aa9e2abaae904094b2576e5
SHA256

e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d
SHA512

d02dc5bf1cc399a3f944cd5cbed47984effc696cf31cf67c5bcae58ff3c7b937e61218cd03727d800776c98509123fead7f875b842d3d8e67758eba682b6f89e
SSDEEP

384:6353Z9WzLE7FCFSHR2yU03QGHc4Je1dJqsNbeVvQkkrIaNJawcudoD7Ukalk:6phCSwmxc4Je1dT0IkQhnbcuyD7Ukal

Score

10^/10

gh0strat purplefox rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/4020-174-0x0000000010000000-0x0000000010191000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4020-174-0x0000000010000000-0x0000000010191000-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
Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe

Executes dropped EXE 2 IoCs

Processes:

2.exetest.exe

pid process

4020 2.exe
3092 test.exe

pid	process
4020	2.exe
3092	test.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2144-133-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/2144-163-0x0000000000400000-0x0000000000415000-memory.dmp	upx

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

Processes:

2.exe

description	ioc	process
File opened (read-only)	\??\R:	2.exe
File opened (read-only)	\??\U:	2.exe
File opened (read-only)	\??\F:	2.exe
File opened (read-only)	\??\G:	2.exe
File opened (read-only)	\??\L:	2.exe
File opened (read-only)	\??\Y:	2.exe
File opened (read-only)	\??\Z:	2.exe
File opened (read-only)	\??\I:	2.exe
File opened (read-only)	\??\J:	2.exe
File opened (read-only)	\??\K:	2.exe
File opened (read-only)	\??\M:	2.exe
File opened (read-only)	\??\N:	2.exe
File opened (read-only)	\??\Q:	2.exe
File opened (read-only)	\??\T:	2.exe
File opened (read-only)	\??\V:	2.exe
File opened (read-only)	\??\W:	2.exe
File opened (read-only)	\??\X:	2.exe
File opened (read-only)	\??\B:	2.exe
File opened (read-only)	\??\E:	2.exe
File opened (read-only)	\??\H:	2.exe
File opened (read-only)	\??\O:	2.exe
File opened (read-only)	\??\P:	2.exe
File opened (read-only)	\??\S:	2.exe

Drops file in System32 directory 3 IoCs

Processes:

mmc.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	mmc.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	mmc.exe
File opened for modification	C:\Windows\System32\gpedit.msc	mmc.exe

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

System Information Discovery
T1082

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

Processes:

2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	2.exe

Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings cmd.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

test.exe

pid	process
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe
3092	test.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

mmc.exe

pid process

3896 mmc.exe

pid	process
3896	mmc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

mmc.exe

description	pid	process
Token: 33	3896	mmc.exe
Token: SeIncBasePriorityPrivilege	3896	mmc.exe
Token: 33	3896	mmc.exe
Token: SeIncBasePriorityPrivilege	3896	mmc.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe2.exemmc.exe

pid process

2144 e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe
4020 2.exe
3896 mmc.exe
3896 mmc.exe
3896 mmc.exe
3896 mmc.exe

pid	process
2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe
4020	2.exe
3896	mmc.exe
3896	mmc.exe
3896	mmc.exe
3896	mmc.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exetest.exe

description	pid	process	target process
PID 2144 wrote to memory of 4020	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	2.exe
PID 2144 wrote to memory of 4020	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	2.exe
PID 2144 wrote to memory of 4020	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	2.exe
PID 2144 wrote to memory of 3092	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	test.exe
PID 2144 wrote to memory of 3092	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	test.exe
PID 2144 wrote to memory of 3092	2144	e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe	test.exe
PID 3092 wrote to memory of 4184	3092	test.exe	cmd.exe
PID 3092 wrote to memory of 4184	3092	test.exe	cmd.exe
PID 3092 wrote to memory of 4184	3092	test.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe
"C:\Users\Admin\AppData\Local\Temp\e2fd0fe39769e6e4cacae7a8c3366e02fe3016cf8d156bda7db2affd8673d38d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144

C:\ProgramData\homo\2.exe
"C:\ProgramData\homo\2.exe"
2⤵
- Executes dropped EXE
- Enumerates connected drives
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
PID:4020

C:\ProgramData\homo\test.exe
"C:\ProgramData\homo\test.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3092

C:\Windows\SysWOW64\cmd.exe
cmd /c start C:\ProgramData\114514
3⤵
- Modifies registry class
PID:4184

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4708

C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\System32\gpedit.msc"
1⤵
- Drops file in System32 directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\homo\2.exe
Filesize
1.2MB

MD5
ddc1266b1d6ae3b9cceec4078b91936e

SHA1
3fb80c7dac6e48f45306ba11fc95c3ad8e6bcd41

SHA256
8cef452d1f95a672b130e64fdb5b71cc1b1cdf4c0533791aa4ce65dffb256a41

SHA512
a0d5e3ceec16f9a75adf453ea4999a79615d4566fb6cb9dd80f94a286d00378407b429d515fa2499756e5b3a24af6f735e4063f5265768215f9b6158f88ed1d4

Download Submit
C:\ProgramData\homo\2.exe
Filesize
1.2MB

MD5
ddc1266b1d6ae3b9cceec4078b91936e

SHA1
3fb80c7dac6e48f45306ba11fc95c3ad8e6bcd41

SHA256
8cef452d1f95a672b130e64fdb5b71cc1b1cdf4c0533791aa4ce65dffb256a41

SHA512
a0d5e3ceec16f9a75adf453ea4999a79615d4566fb6cb9dd80f94a286d00378407b429d515fa2499756e5b3a24af6f735e4063f5265768215f9b6158f88ed1d4

Download Submit
C:\ProgramData\homo\2.exe
Filesize
1.2MB

MD5
ddc1266b1d6ae3b9cceec4078b91936e

SHA1
3fb80c7dac6e48f45306ba11fc95c3ad8e6bcd41

SHA256
8cef452d1f95a672b130e64fdb5b71cc1b1cdf4c0533791aa4ce65dffb256a41

SHA512
a0d5e3ceec16f9a75adf453ea4999a79615d4566fb6cb9dd80f94a286d00378407b429d515fa2499756e5b3a24af6f735e4063f5265768215f9b6158f88ed1d4

Download Submit
C:\ProgramData\homo\test.exe
Filesize
208KB

MD5
918d059d9c6573de0fb710d7c62b39f8

SHA1
56d5754101a542d27bca93c1b008293ddb5b8048

SHA256
73273191ff57825b6a32c776e2ac29800aec5febc70ea64c3d5128abcf7b49df

SHA512
2b9436b060254485b71e7570705009269e03aa8e78b7cb6020986d781cf718fba89457944fce7d32a71df8b24a795e3bcfb4ed097078b732a5748c1f8238ba57

Download Submit
C:\ProgramData\homo\test.exe
Filesize
208KB

MD5
918d059d9c6573de0fb710d7c62b39f8

SHA1
56d5754101a542d27bca93c1b008293ddb5b8048

SHA256
73273191ff57825b6a32c776e2ac29800aec5febc70ea64c3d5128abcf7b49df

SHA512
2b9436b060254485b71e7570705009269e03aa8e78b7cb6020986d781cf718fba89457944fce7d32a71df8b24a795e3bcfb4ed097078b732a5748c1f8238ba57

Download Submit
C:\ProgramData\homo\test.exe
Filesize
208KB

MD5
918d059d9c6573de0fb710d7c62b39f8

SHA1
56d5754101a542d27bca93c1b008293ddb5b8048

SHA256
73273191ff57825b6a32c776e2ac29800aec5febc70ea64c3d5128abcf7b49df

SHA512
2b9436b060254485b71e7570705009269e03aa8e78b7cb6020986d781cf718fba89457944fce7d32a71df8b24a795e3bcfb4ed097078b732a5748c1f8238ba57

Download Submit
memory/2144-133-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2144-163-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3896-172-0x0000000005970000-0x0000000006431000-memory.dmp

Filesize
10.8MB

Download
memory/4020-174-0x0000000010000000-0x0000000010191000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads