fatalrat | 39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 23:14

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General

Target

39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
Size

2.1MB
MD5

08c7b4532ef227cfa186f591572769da
SHA1

7481a96a7756aff20a893ebc1a037d3ab91356dd
SHA256

39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74
SHA512

c1cfa72cf16d2574ab7bc9c5318e64acc2434922363092aff19468ff251a149d737d0249a404716227be9fe6133d39aa110fcb7833b6232bcd3bf4889a3dd331
SSDEEP

49152:+bCsqGs57WcQgDO+Ivam8M0iTnDJJZk425V/zaBM3Sbawwtl:+3e57UgSZ8Mba4aBN3SbA

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 21 IoCs

rat infostealer

resource	yara_rule
behavioral1/memory/2032-26-0x0000000000130000-0x0000000000166000-memory.dmp	fatalrat
behavioral1/memory/2032-35-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-36-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-37-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-38-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-39-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-40-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-41-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-42-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-43-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-44-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-45-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/2032-53-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-55-0x00000000020C0000-0x00000000020F6000-memory.dmp	fatalrat
behavioral1/memory/1656-65-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-66-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-67-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-68-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-69-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-70-0x0000000010000000-0x0000000010207000-memory.dmp	fatalrat
behavioral1/memory/1656-71-0x0000000010000000-0x0000000010207000-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
2032	Powermonster.exe
1656	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-1-5-21-3185155662-718608226-894467740-1000\Software\Wine	Powermonster.exe
Key opened	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Wine	Powermonster.exe

Loads dropped DLL 7 IoCs

pid	Process
2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
2032	Powermonster.exe
2032	Powermonster.exe
1656	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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\yxfile = "C:\\Users\\Admin\\AppData\\Local\\Powermonster.exe"	Powermonster.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2032	Powermonster.exe
1656	Powermonster.exe

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

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

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

Suspicious behavior: EnumeratesProcesses 55 IoCs

pid	Process
2032	Powermonster.exe
2032	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe
1656	Powermonster.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	Powermonster.exe
Token: SeDebugPrivilege	1656	Powermonster.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2032	2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe	28
PID 2212 wrote to memory of 2032	2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe	28
PID 2212 wrote to memory of 2032	2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe	28
PID 2212 wrote to memory of 2032	2212	39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe	28
PID 2032 wrote to memory of 1656	2032	Powermonster.exe	31
PID 2032 wrote to memory of 1656	2032	Powermonster.exe	31
PID 2032 wrote to memory of 1656	2032	Powermonster.exe	31
PID 2032 wrote to memory of 1656	2032	Powermonster.exe	31

C:\Users\Admin\AppData\Local\Temp\39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe
"C:\Users\Admin\AppData\Local\Temp\39fbaf33223cf1420da5ee4badd313d2fbd0b087714dd09b09132ebf8101de74.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Public\Pictures\Powermonster.exe
  "C:\Users\Public\Pictures\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:2032
- - 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
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1656

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\Powermonster.exe

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
918KB

MD5
4106c995b5693909f85c782ee75dd49d

SHA1
6eca500e40d80c3a9fbf50ad70a4328b607293b9

SHA256
d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

SHA512
2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
918KB

MD5
4106c995b5693909f85c782ee75dd49d

SHA1
6eca500e40d80c3a9fbf50ad70a4328b607293b9

SHA256
d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

SHA512
2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

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
918KB

MD5
4106c995b5693909f85c782ee75dd49d

SHA1
6eca500e40d80c3a9fbf50ad70a4328b607293b9

SHA256
d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

SHA512
2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
2.5MB

MD5
842af33f5702fa99efd8f7b235f28fcc

SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9

SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209

SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82

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

Filesize
918KB

MD5
4106c995b5693909f85c782ee75dd49d

SHA1
6eca500e40d80c3a9fbf50ad70a4328b607293b9

SHA256
d52d0320a4e66c4cbece5963723f822b4b4809a0ca9d9ea6e310a170e604398c

SHA512
2f59d3be9dd83bb84fc2a22dd7edcbd6f999af2c873f551563e5a2049b2cf7e582edaeeaeb0acaca25422910edd01322a16e60643df6ba89f376c67c25787ebb

Download Submit
memory/1656-66-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-65-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-67-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-68-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-60-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download
memory/1656-62-0x0000000002000000-0x0000000002002000-memory.dmp

Filesize
8KB

Download
memory/1656-61-0x00000000000A0000-0x00000000000B0000-memory.dmp

Filesize
64KB

Download
memory/1656-58-0x0000000001FF0000-0x0000000001FF1000-memory.dmp

Filesize
4KB

Download
memory/1656-54-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-56-0x0000000001EE0000-0x0000000001EE1000-memory.dmp

Filesize
4KB

Download
memory/1656-55-0x00000000020C0000-0x00000000020F6000-memory.dmp

Filesize
216KB

Download
memory/1656-69-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-70-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/1656-71-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-24-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/2032-45-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-44-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-43-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-42-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-53-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-41-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-40-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-39-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-38-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-37-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-36-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-35-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-26-0x0000000000130000-0x0000000000166000-memory.dmp

Filesize
216KB

Download
memory/2032-29-0x0000000000860000-0x0000000000870000-memory.dmp

Filesize
64KB

Download
memory/2032-21-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download
memory/2032-23-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2032-25-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download
memory/2032-22-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2032-20-0x0000000077820000-0x0000000077822000-memory.dmp

Filesize
8KB

Download
memory/2032-19-0x0000000010000000-0x0000000010207000-memory.dmp

Filesize
2.0MB

Download