gh0strat | 7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9

General

Target

7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
Size

133KB
MD5

2bc61d0570033a0058c8b491dc636b15
SHA1

33b2fe2b01f7de3919e18a745e25267257b74f3a
SHA256

7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9
SHA512

91f1d9f8df7806a8581997d6f1aa80fc2302c7c3525918f4acfa9e1318b4c10419894f529c596f1f0f796d3f5b2b6be301d25950e0c5d6b50f34f7231cca0652
SSDEEP

3072:kyIpG2/iDbY588txzTCyPCWfzmrOzabq5iul6u6iGkFuMR8iV:pIpos5zxPCWfaazsq5T6u+2ui8iV

Score

10^/10

gh0strat discovery rat upx

Malware Config

Extracted

Family

gh0strat

C2

159.75.71.140

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2388-15-0x0000000000400000-0x000000000046D000-memory.dmp	family_gh0strat
behavioral1/memory/2992-1-0x0000000010000000-0x0000000010015000-memory.dmp	family_gh0strat
behavioral1/memory/1832-19-0x0000000000400000-0x000000000046D000-memory.dmp	family_gh0strat
behavioral1/memory/2992-20-0x0000000000400000-0x000000000046D000-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
2388	Iumuwyo.exe
1832	Iumuwyo.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2388-15-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/1832-13-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/files/0x00090000000120f8-12.dat	upx
behavioral1/memory/2992-0-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/1832-19-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2992-20-0x0000000000400000-0x000000000046D000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Iumuwyo.exe	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
File opened for modification	C:\Program Files (x86)\Iumuwyo.exe	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Iumuwyo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Iumuwyo.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2992	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
2992	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
2992	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
2388	Iumuwyo.exe
2388	Iumuwyo.exe
2388	Iumuwyo.exe
1832	Iumuwyo.exe
1832	Iumuwyo.exe
1832	Iumuwyo.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2992	7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 1832	2388	Iumuwyo.exe	32
PID 2388 wrote to memory of 1832	2388	Iumuwyo.exe	32
PID 2388 wrote to memory of 1832	2388	Iumuwyo.exe	32
PID 2388 wrote to memory of 1832	2388	Iumuwyo.exe	32

C:\Users\Admin\AppData\Local\Temp\7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe
"C:\Users\Admin\AppData\Local\Temp\7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
PID:2992

C:\Program Files (x86)\Iumuwyo.exe
"C:\Program Files (x86)\Iumuwyo.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Program Files (x86)\Iumuwyo.exe
  "C:\Program Files (x86)\Iumuwyo.exe" Win7
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Iumuwyo.exe

Filesize
133KB

MD5
2bc61d0570033a0058c8b491dc636b15

SHA1
33b2fe2b01f7de3919e18a745e25267257b74f3a

SHA256
7516526ef9d70b47cdac5a7d595ca7f98893ee311252ce579f080c7386b821a9

SHA512
91f1d9f8df7806a8581997d6f1aa80fc2302c7c3525918f4acfa9e1318b4c10419894f529c596f1f0f796d3f5b2b6be301d25950e0c5d6b50f34f7231cca0652

Download Submit
memory/1832-13-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1832-19-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2388-15-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2992-1-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2992-0-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2992-20-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

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