fatalrat | 10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613

General

Target

10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
Size

1.1MB
MD5

057da95d1934784ceaaa5b0229538497
SHA1

745d0853562bc9cbe964bc100b6cdce18112fdf0
SHA256

10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613
SHA512

505ff79fb6034376de174bb347cc01c2af9bbec9acc270daf41b8945a280dc3d863cb811b3d3f8198bd318d7fbaddf19685cf9a069833c5cdeadaf9ed4ab80ee
SSDEEP

24576:8HojlSSKXUne4vmOmU8tpJKI12CiwGo8YyvmWP61TkP6hEW:8H0lSSKX+XvnG/1EPDBvmWPhP4EW

Score

10^/10

fatalrat discovery infostealer rat

Malware Config

Signatures

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

Fatal Rat payload 3 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/2848-1-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat
behavioral2/memory/2848-19-0x0000000000400000-0x0000000000512000-memory.dmp	fatalrat
behavioral2/memory/3956-25-0x0000000000400000-0x0000000000512000-memory.dmp	fatalrat

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2848	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
3956	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.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 2 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	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
Token: SeDebugPrivilege	3956	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 3956	2848	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe	82
PID 2848 wrote to memory of 3956	2848	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe	82
PID 2848 wrote to memory of 3956	2848	10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe	82

C:\Users\Admin\AppData\Local\Temp\10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
"C:\Users\Admin\AppData\Local\Temp\10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe
  "C:\Users\Admin\AppData\Local\10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

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:\Users\Admin\AppData\Local\10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613.exe

Filesize
1.1MB

MD5
057da95d1934784ceaaa5b0229538497

SHA1
745d0853562bc9cbe964bc100b6cdce18112fdf0

SHA256
10fcac9285f4886bcc99b44ea25dd264ff397e2d488a0e1bc161a950411b9613

SHA512
505ff79fb6034376de174bb347cc01c2af9bbec9acc270daf41b8945a280dc3d863cb811b3d3f8198bd318d7fbaddf19685cf9a069833c5cdeadaf9ed4ab80ee

Download Submit
memory/2848-0-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/2848-1-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2848-19-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/3956-25-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads