asyncrat | bccd9bf98be271d65f16e5c30c7a886157386717856857a1089f0abfc04aa5a1

General

Target

registrator.exe
Size

10.2MB
MD5

e90adc914ffed2f7601beb33403e3a1a
SHA1

54343f9d673ba8a041a9d90ef706ab37c43a2aa9
SHA256

bccd9bf98be271d65f16e5c30c7a886157386717856857a1089f0abfc04aa5a1
SHA512

d5b369ecacf603fbf143ec6262f237a19969ff0785de403369d8fb707641c09295dc1a40b47f2b399559b9f19dfc06ef4fba6b925abff85e64ba2f758201fc6b

Score

10^/10

asyncrat evasion rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/740-5-0x00000235419C0000-0x0000023542FBE000-memory.dmp	asyncrat

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
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 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

registrator.exe

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

Identifies Wine through registry keys 2 TTPs 1 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

Processes:

registrator.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wine registrator.exe
Loads dropped DLL 1 IoCs

Processes:

registrator.exe

pid process

740 registrator.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

registrator.exe

pid process

740 registrator.exe
740 registrator.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

registrator.exe

description pid process

Token: SeDebugPrivilege 740 registrator.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wine	registrator.exe

pid	process
740	registrator.exe

pid	process
740	registrator.exe
740	registrator.exe

description	pid	process
Token: SeDebugPrivilege	740	registrator.exe

C:\Users\Admin\AppData\Local\Temp\registrator.exe
"C:\Users\Admin\AppData\Local\Temp\registrator.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:740

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

5

T1012

Virtualization/Sandbox Evasion

4

T1497

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
MD5
7bc084895c61622dfc86e9b9904db093

SHA1
f421313979ddfaeb951bc8f7d6a0d89c63d2bb3c

SHA256
75d6bdc2ce9e0e718f99897910bfadeaac3d8d7cf2f08ddc4129f7441a525079

SHA512
6e4cfdae9e4d1f88e5b6d82c8e658cdfdcefdde47d6834c9dc18b7ba9499aca1a868c58ec4e36efb1856ba65f0fd8cc1ace1662d235cec6dfa7c0e0b5251de67

Download Submit
memory/740-9-0x0000023527720000-0x0000023527721000-memory.dmp

Filesize
4KB

Download
memory/740-5-0x00000235419C0000-0x0000023542FBE000-memory.dmp

Filesize
22.0MB

Download
memory/740-6-0x0000023529070000-0x0000023529071000-memory.dmp

Filesize
4KB

Download
memory/740-7-0x0000023544350000-0x000002354446D000-memory.dmp

Filesize
1.1MB

Download
memory/740-8-0x0000023544470000-0x00000235445B5000-memory.dmp

Filesize
1.3MB

Download
memory/740-2-0x00007FFD72180000-0x00007FFD72B6C000-memory.dmp

Filesize
9.9MB

Download
memory/740-10-0x00000235417E0000-0x00000235417E1000-memory.dmp

Filesize
4KB

Download
memory/740-11-0x0000023541940000-0x0000023541996000-memory.dmp

Filesize
344KB

Download
memory/740-12-0x00000235448C0000-0x00000235448C1000-memory.dmp

Filesize
4KB

Download
memory/740-13-0x00000235448E0000-0x0000023544953000-memory.dmp

Filesize
460KB

Download
memory/740-3-0x00000235269A0000-0x00000235269A1000-memory.dmp

Filesize
4KB

Download
memory/740-15-0x000002354A720000-0x000002354A721000-memory.dmp

Filesize
4KB

Download

Analysis

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