asyncrat | f95c8ace1331a172303a2f2cea8edc805203156e499012df465a158246495cce

General

Target

JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe
Size

609KB
MD5

2639445988d9173a2f4e1f95d3ab6062
SHA1

5469590c4a341104f6bab13f1b7b484d43b1d34d
SHA256

f95c8ace1331a172303a2f2cea8edc805203156e499012df465a158246495cce
SHA512

88b8d43d8d263ea9700a855606354eae0a496c9ff2f3e96398d607f0d81345b19a19bef0b1728d1828671ebe3563df891cdc62912b2fa9086615947a9f9bf5e1
SSDEEP

12288:sULh08OGQuZLvqJFTP2bvCuJsGx48vpnnuQsHhJfAUyfvq3:GnGQYTqaCCsGx48vJuQq

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

23.95.115.74:1465

23.95.115.74:1560

23.95.115.74:1148

23.95.115.74:1985

216.250.249.156:1465

216.250.249.156:1560

216.250.249.156:1148

216.250.249.156:1985

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31

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 3 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	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2904	schtasks.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2904	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	29
PID 2164 wrote to memory of 2904	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	29
PID 2164 wrote to memory of 2904	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	29
PID 2164 wrote to memory of 2904	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	29
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31
PID 2164 wrote to memory of 2752	2164	JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QzNTNTgUgd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94D0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2904
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2639445988d9173a2f4e1f95d3ab6062.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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

C:\Users\Admin\AppData\Local\Temp\tmp94D0.tmp

Filesize
1KB

MD5
a289c054b1589f0c7d5879558ac560a0

SHA1
36c9eb2dac3625df818413d9bd38421292818733

SHA256
69a3304aa9f3e7818974d8bc26f43d256efbe369b5ce8f68a5d51081431c9930

SHA512
830c26b0edb21b515b6bf94d9cd49665c872df3a160b59b16aa8b377315ffd1ceec778c795d62f9305641e3e500643fbb0e4d12c15549abfa4689859d26c8edb

Download Submit
memory/2164-0-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000000EA0000-0x0000000000F3E000-memory.dmp

Filesize
632KB

Download
memory/2164-2-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-3-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2164-4-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/2164-5-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-6-0x0000000004340000-0x00000000043A6000-memory.dmp

Filesize
408KB

Download
memory/2164-7-0x0000000000450000-0x0000000000462000-memory.dmp

Filesize
72KB

Download
memory/2164-27-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-26-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2752-28-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-29-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-30-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads