limerat | ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0

General

Target

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Size

845KB
MD5

c29b3a45fa82325fc62f03f2da1e2975
SHA1

2655cc45ccabc43db6791cd57080b1be3a84a775
SHA256

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0
SHA512

5baaaef6460890762441cbad946031809f2754b8fea363ed0a90267cb0a026ffdb9d686d51cd96010c6d7d82b8f9e2755eff9903c61cb0bc79d04fdb90bbf6ae

Score

10^/10

limerat evasion rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
NYANCAT
antivm
false
c2_url
https://pastebin.com/raw/RScXPXsx
delay
3
download_payload
false
install
false
install_name
Server.exe
main_folder
AppData
pin_spread
false
sub_folder
\Mail-Server\
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	pid	process	target process
PID 1516 set thread context of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1656 schtasks.exe

pid	process
1656	schtasks.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

pid process

1516 ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

pid	process
1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exeab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	pid	process
Token: SeDebugPrivilege	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Token: SeDebugPrivilege	1204	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
Token: SeDebugPrivilege	1204	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe

description	pid	process	target process
PID 1516 wrote to memory of 1656	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	schtasks.exe
PID 1516 wrote to memory of 1656	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	schtasks.exe
PID 1516 wrote to memory of 1656	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	schtasks.exe
PID 1516 wrote to memory of 1656	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	schtasks.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 1204	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
PID 1516 wrote to memory of 388	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	dw20.exe
PID 1516 wrote to memory of 388	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	dw20.exe
PID 1516 wrote to memory of 388	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	dw20.exe
PID 1516 wrote to memory of 388	1516	ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
"C:\Users\Admin\AppData\Local\Temp\ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KuDIkpeai" /XML "C:\Users\Admin\AppData\Local\Temp\tmp276F.tmp"
2⤵
- Creates scheduled task(s)
PID:1656

C:\Users\Admin\AppData\Local\Temp\ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe
"C:\Users\Admin\AppData\Local\Temp\ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0.exe"
2⤵
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
PID:1204

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 1028
2⤵
PID:388

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp276F.tmp
Filesize
1KB

MD5
9e689074c506a3f06ae10fcf135d0d33

SHA1
26ed44676fe53a6b7523df6ebe9e2fc9d57b8eab

SHA256
ee03c0ce8e1525ccf3d23cbf4dc0a6e440df509b47aa7609a54e2162fab44041

SHA512
224d1633f9e408ef16842487ac10c4d7617bfd5addf6724ecfde90ee45f9b6ba70cb805dc2f2f2a1c7d29fbe5aec4de5fa0f755d76ade26824e083460ee03844

Download Submit
memory/388-72-0x0000000000000000-mapping.dmp

Download
memory/1204-58-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-61-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-59-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-63-0x0000000000408BEE-mapping.dmp

Download
memory/1204-64-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-65-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-68-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-70-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1204-74-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download
memory/1516-55-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/1656-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads