asyncrat | 4c98df72409a06e5fdbd1555a4a35fa4c7a7aef2ea783615f9aa4286eaf2c84b

General

Target

a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
Size

278KB
MD5

a57a5e6e564cc7272bdc28d882aa1bdb
SHA1

3aa22d02c9929dcd4497e0b7580708386bdb8531
SHA256

4c98df72409a06e5fdbd1555a4a35fa4c7a7aef2ea783615f9aa4286eaf2c84b
SHA512

da505b90a3feefa8d8648ef71c08b8bd391f50023ceff21c4f58aa3a693dea23e975c43e78a8ce9550d97623357f694b734bfb1c23e21449b68af3138938f9fa
SSDEEP

6144:q/r+ijAGk8RT+mZe1DUR1WQVpS6lvuKS0/X6gCOd58:SyUAQe1DsA6Q+/mO

Score

10^/10

asyncrat discovery rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Beds Protector Packer 1 IoCs

Detects Beds Protector packer used to load .NET malware.

resource	yara_rule
behavioral1/memory/2296-2-0x00000000003F0000-0x0000000000430000-memory.dmp	beds_protector

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft_.exe	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft_.exe	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2296 set thread context of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30

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	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2792	2296	a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a57a5e6e564cc7272bdc28d882aa1bdb_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2296-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/2296-1-0x0000000001170000-0x00000000011BA000-memory.dmp

Filesize
296KB

Download
memory/2296-2-0x00000000003F0000-0x0000000000430000-memory.dmp

Filesize
256KB

Download
memory/2296-3-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-4-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/2296-5-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-7-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2296-25-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-21-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-19-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-15-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-13-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-24-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-9-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2792-26-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-27-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-28-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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