asyncrat | e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647

General

Target

e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
Size

47KB
MD5

b54a96fc6a2c782fe559ab2a5a6c926f
SHA1

48ba8ab74fe7e669ef28304852728466b92998c3
SHA256

e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647
SHA512

67a3c71c9ddb6eab42086f5881a2473832762f742cfe5f465a719d4cf69334629ff81797a5a438e74f12abbfd7850c15621919ac7babf3d7b3a357ca86c7531f
SSDEEP

768:8uMBi+TDlxOZvWUjwF8ONmo2qztSZ716XtFOtmY8/LQfPImB1sgV0b66OMUEjKK+:8uMB1TDlssF72B71SO8K4mBGVb66ujak

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

newstartagain.servequake.com:6606

newstartagain.servequake.com:7707

newstartagain.servequake.com:8808

newstartagain50.duckdns.org:6606

newstartagain50.duckdns.org:7707

newstartagain50.duckdns.org:8808

Mutex

Fm255Mv55doc

Attributes

delay
3
install
true
install_file
System.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0029000000016d81-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2944	System.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	cmd.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2436	timeout.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
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
Token: SeDebugPrivilege	2944	System.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 2264	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	30
PID 1896 wrote to memory of 2264	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	30
PID 1896 wrote to memory of 2264	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	30
PID 1896 wrote to memory of 2264	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	30
PID 1896 wrote to memory of 2868	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	32
PID 1896 wrote to memory of 2868	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	32
PID 1896 wrote to memory of 2868	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	32
PID 1896 wrote to memory of 2868	1896	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	32
PID 2264 wrote to memory of 2768	2264	cmd.exe	34
PID 2264 wrote to memory of 2768	2264	cmd.exe	34
PID 2264 wrote to memory of 2768	2264	cmd.exe	34
PID 2264 wrote to memory of 2768	2264	cmd.exe	34
PID 2868 wrote to memory of 2436	2868	cmd.exe	35
PID 2868 wrote to memory of 2436	2868	cmd.exe	35
PID 2868 wrote to memory of 2436	2868	cmd.exe	35
PID 2868 wrote to memory of 2436	2868	cmd.exe	35
PID 2868 wrote to memory of 2944	2868	cmd.exe	36
PID 2868 wrote to memory of 2944	2868	cmd.exe	36
PID 2868 wrote to memory of 2944	2868	cmd.exe	36
PID 2868 wrote to memory of 2944	2868	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
"C:\Users\Admin\AppData\Local\Temp\e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2768
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2CE.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2436
- - C:\Users\Admin\AppData\Roaming\System.exe
    "C:\Users\Admin\AppData\Roaming\System.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2944

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab2290.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2CE.tmp.bat

Filesize
149B

MD5
f435dc1815f293126b1d3fc17a13de79

SHA1
aa63584eb154037fe44f723aa7645bad06327530

SHA256
04600cde86270aa244dc26d9afea0b1b4cfa83f5bc504be1d5712b25d5cdc2e9

SHA512
773e8e1bbd560c698e877bbf0fc80d69ca8eab0294c792fd8b65436ae25e470b5dc016a3125db2392810ee4b8823ca4d761d65be616fe9220fbcdf54bd9aaaa2

Download Submit
\Users\Admin\AppData\Roaming\System.exe

Filesize
47KB

MD5
b54a96fc6a2c782fe559ab2a5a6c926f

SHA1
48ba8ab74fe7e669ef28304852728466b92998c3

SHA256
e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647

SHA512
67a3c71c9ddb6eab42086f5881a2473832762f742cfe5f465a719d4cf69334629ff81797a5a438e74f12abbfd7850c15621919ac7babf3d7b3a357ca86c7531f

Download Submit
memory/1896-0-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/1896-1-0x0000000000DC0000-0x0000000000DD2000-memory.dmp

Filesize
72KB

Download
memory/1896-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/1896-11-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-16-0x0000000000E60000-0x0000000000E72000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads