fatalrat | fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-11-2024 15:27

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General

Target

fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
Size

140KB
MD5

d3501cba07547fc6b1ed36233fd4a5de
SHA1

3a0576dee70677db92a1de6b09f29d04e1e743cf
SHA256

fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a
SHA512

b878d6ec1ad3679306db10b52895eb7de31ad22a44208c97b327c535987c0a0de221c6aef79f94b45e718c80d840182c3fe6af9ae755429bddb456048ccf9ba0
SSDEEP

1536:Vua+BTv3tIO8MtM+/6jRVGIk1MgHjsPGYYwOda2CqqZOIgQJb0lfjtO+vbWL8xJb:Vn+htWMtf+7GZYGVA2QJgi8xJLDoU

Score

10^/10

fatalrat gh0strat defense_evasion discovery infostealer rat upx

Malware Config

Signatures

FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
infostealer rat fatalrat
Fatalrat family
fatalrat

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2452-23-0x00000000023B0000-0x00000000023C2000-memory.dmp	family_gh0strat
behavioral1/memory/2452-25-0x00000000023B0000-0x00000000023C2000-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

Fatal Rat payload 2 IoCs

rat infostealer

resource	yara_rule
behavioral1/memory/1608-0-0x0000000010000000-0x000000001001C000-memory.dmp	fatalrat
behavioral1/memory/1608-19-0x0000000000400000-0x0000000000424000-memory.dmp	fatalrat

Executes dropped EXE 2 IoCs

pid	Process
2328	Defghi.exe
2452	Defghi.exe

Enumerates connected drives 3 TTPs 1 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)	\??\D:	Defghi.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2452-20-0x00000000023B0000-0x00000000023C2000-memory.dmp	upx
behavioral1/memory/2452-23-0x00000000023B0000-0x00000000023C2000-memory.dmp	upx
behavioral1/memory/2452-25-0x00000000023B0000-0x00000000023C2000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Defghi.exe	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
File opened for modification	C:\Windows\Defghi.exe	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
File opened for modification	C:\Windows\Defghi.exe	Defghi.exe
File created	C:\Windows\Defghi.exe	Defghi.exe

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

System Information Discovery
T1082

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	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Defghi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Defghi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	Defghi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Defghi.exe

Modifies data under HKEY_USERS 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet	Defghi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Defghi Klmnopqr\InstallTime = "2024-11-14 15:28"	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Defghi.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Defghi Klmnopqr	Defghi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services	Defghi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Defghi Klmnopqr\Group = "1114ÉÏ‚÷shell"	Defghi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Defghi Klmnopqr	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Defghi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Defghi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Defghi.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

pid	Process
1608	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
2328	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe
2452	Defghi.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1608	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
Token: SeDebugPrivilege	2328	Defghi.exe
Token: SeDebugPrivilege	2452	Defghi.exe
Token: SeIncBasePriorityPrivilege	2452	Defghi.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2452	2328	Defghi.exe	31
PID 2328 wrote to memory of 2452	2328	Defghi.exe	31
PID 2328 wrote to memory of 2452	2328	Defghi.exe	31
PID 2328 wrote to memory of 2452	2328	Defghi.exe	31
PID 2452 wrote to memory of 1664	2452	Defghi.exe	32
PID 2452 wrote to memory of 1664	2452	Defghi.exe	32
PID 2452 wrote to memory of 1664	2452	Defghi.exe	32
PID 2452 wrote to memory of 1664	2452	Defghi.exe	32

C:\Users\Admin\AppData\Local\Temp\fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe
"C:\Users\Admin\AppData\Local\Temp\fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1608

C:\Windows\Defghi.exe
C:\Windows\Defghi.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\Defghi.exe
  C:\Windows\Defghi.exe Win7
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2452
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c del /q C:\Windows\Defghi.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Defghi.exe

Filesize
140KB

MD5
d3501cba07547fc6b1ed36233fd4a5de

SHA1
3a0576dee70677db92a1de6b09f29d04e1e743cf

SHA256
fb758ef334a36a8ec5a334cfce883b56849cb1ab7e92493074e2adabefcd9b0a

SHA512
b878d6ec1ad3679306db10b52895eb7de31ad22a44208c97b327c535987c0a0de221c6aef79f94b45e718c80d840182c3fe6af9ae755429bddb456048ccf9ba0

Download Submit
memory/1608-0-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1608-19-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2452-20-0x00000000023B0000-0x00000000023C2000-memory.dmp

Filesize
72KB

Download
memory/2452-23-0x00000000023B0000-0x00000000023C2000-memory.dmp

Filesize
72KB

Download
memory/2452-25-0x00000000023B0000-0x00000000023C2000-memory.dmp

Filesize
72KB

Download