fatalrat | 9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144

Analysis

max time kernel
146s
max time network
132s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
16/10/2023, 07:10

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General

Target

9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
Size

2.1MB
MD5

d73d71dc32505c87955f992091210f1a
SHA1

88d5e3fb2462b053b1161c8197168f2dafb63317
SHA256

9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144
SHA512

231d27c1028c62920d67ae48d76b40e2591490b984cb69d706b1ec118cc6a7e367277f1704a84853bbe16ae9a42e1ce2ecd125f0a5e2019e207bcfe1defbe920
SSDEEP

49152:lbZWaaPLan9GY7Pjp8oNivM0iTnDJJZk425V/zaBM3Sbawwtlx:lH8Lan9hp8oNivMba4aBN3SbAx

Score

10^/10

fatalrat evasion infostealer persistence rat

Malware Config

Signatures

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

Fatal Rat payload 20 IoCs

rat infostealer

resource	yara_rule
behavioral1/memory/3056-24-0x00000000024A0000-0x00000000024D6000-memory.dmp	fatalrat
behavioral1/memory/3056-36-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-37-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-38-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-39-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-40-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-41-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-42-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-43-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-44-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-45-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-46-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/3056-54-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-56-0x0000000000890000-0x00000000008C6000-memory.dmp	fatalrat
behavioral1/memory/2792-67-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-68-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-69-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-70-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-71-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat
behavioral1/memory/2792-72-0x0000000010000000-0x0000000010209000-memory.dmp	fatalrat

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Powermonster.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Powermonster.exe

Executes dropped EXE 2 IoCs

pid	Process
3056	Powermonster.exe
2792	Powermonster.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Wine	Powermonster.exe
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Wine	Powermonster.exe

Loads dropped DLL 7 IoCs

pid	Process
2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
3056	Powermonster.exe
3056	Powermonster.exe
2792	Powermonster.exe

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-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows\CurrentVersion\Run\yxfile = "C:\\Users\\Admin\\AppData\\Local\\Powermonster.exe"	Powermonster.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3056	Powermonster.exe
2792	Powermonster.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3056	Powermonster.exe
2792	Powermonster.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	Powermonster.exe
Token: SeDebugPrivilege	2792	Powermonster.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 3056	2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe	28
PID 2372 wrote to memory of 3056	2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe	28
PID 2372 wrote to memory of 3056	2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe	28
PID 2372 wrote to memory of 3056	2372	9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe	28
PID 3056 wrote to memory of 2792	3056	Powermonster.exe	31
PID 3056 wrote to memory of 2792	3056	Powermonster.exe	31
PID 3056 wrote to memory of 2792	3056	Powermonster.exe	31
PID 3056 wrote to memory of 2792	3056	Powermonster.exe	31

C:\Users\Admin\AppData\Local\Temp\9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe
"C:\Users\Admin\AppData\Local\Temp\9c0bc5dceb61efbf72250e8d04003b7b8f7806afba4e6a815b71185d09550144.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Public\Documents\Powermonster.exe
  "C:\Users\Public\Documents\Powermonster.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Users\Admin\AppData\Local\Powermonster.exe
    "C:\Users\Admin\AppData\Local\Powermonster.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
C:\Users\Admin\AppData\Local\libcurl.dll

Filesize
922KB

MD5
22019e31ea6f7134c94358e9eb8516fe

SHA1
51673f72f119b1fc391fcb8b0780c0077aac1e13

SHA256
291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7

SHA512
20d226aec3cc06aa2d62b555d144896fc6f7d575968f02997f96875640ba51801b9fd29925dd1e3ec092870a7696c5d14c1c0303f35607aa979f40a28ccc33d4

Download Submit
C:\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
C:\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
C:\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
C:\Users\Public\Documents\libcurl.dll

Filesize
922KB

MD5
22019e31ea6f7134c94358e9eb8516fe

SHA1
51673f72f119b1fc391fcb8b0780c0077aac1e13

SHA256
291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7

SHA512
20d226aec3cc06aa2d62b555d144896fc6f7d575968f02997f96875640ba51801b9fd29925dd1e3ec092870a7696c5d14c1c0303f35607aa979f40a28ccc33d4

Download Submit
\Users\Admin\AppData\Local\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
\Users\Admin\AppData\Local\libcurl.dll

Filesize
922KB

MD5
22019e31ea6f7134c94358e9eb8516fe

SHA1
51673f72f119b1fc391fcb8b0780c0077aac1e13

SHA256
291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7

SHA512
20d226aec3cc06aa2d62b555d144896fc6f7d575968f02997f96875640ba51801b9fd29925dd1e3ec092870a7696c5d14c1c0303f35607aa979f40a28ccc33d4

Download Submit
\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
\Users\Public\Documents\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

Download Submit
\Users\Public\Documents\libcurl.dll

Filesize
922KB

MD5
22019e31ea6f7134c94358e9eb8516fe

SHA1
51673f72f119b1fc391fcb8b0780c0077aac1e13

SHA256
291e91026dc87e8d85e4a25cdbdce09010c4a7f1b2492e23e3ec875a3370c7d7

SHA512
20d226aec3cc06aa2d62b555d144896fc6f7d575968f02997f96875640ba51801b9fd29925dd1e3ec092870a7696c5d14c1c0303f35607aa979f40a28ccc33d4

Download Submit
memory/2792-67-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-63-0x00000000007D0000-0x00000000007D1000-memory.dmp

Filesize
4KB

Download
memory/2792-66-0x0000000000840000-0x0000000000841000-memory.dmp

Filesize
4KB

Download
memory/2792-61-0x0000000000820000-0x0000000000822000-memory.dmp

Filesize
8KB

Download
memory/2792-62-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2792-69-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-65-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/2792-68-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-56-0x0000000000890000-0x00000000008C6000-memory.dmp

Filesize
216KB

Download
memory/2792-59-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2792-57-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-55-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-70-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-71-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/2792-72-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-24-0x00000000024A0000-0x00000000024D6000-memory.dmp

Filesize
216KB

Download
memory/3056-46-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-45-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-44-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-54-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-43-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-42-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-41-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-40-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-39-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-38-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-37-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-36-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-29-0x0000000002240000-0x0000000002242000-memory.dmp

Filesize
8KB

Download
memory/3056-30-0x0000000000840000-0x0000000000850000-memory.dmp

Filesize
64KB

Download
memory/3056-27-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/3056-25-0x0000000002250000-0x0000000002251000-memory.dmp

Filesize
4KB

Download
memory/3056-23-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/3056-22-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/3056-21-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download
memory/3056-20-0x00000000778B0000-0x00000000778B2000-memory.dmp

Filesize
8KB

Download
memory/3056-19-0x0000000010000000-0x0000000010209000-memory.dmp

Filesize
2.0MB

Download