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
behavioral2/files/0x000a000000023256-11.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2480455240-981575606-1030659066-1000\Control Panel\International\Geo\Nation	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe

Executes dropped EXE 1 IoCs

pid	Process
4956	System.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
2940	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
3580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
Token: SeDebugPrivilege	4956	System.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3660 wrote to memory of 4444	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	85
PID 3660 wrote to memory of 4444	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	85
PID 3660 wrote to memory of 4444	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	85
PID 3660 wrote to memory of 2008	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	87
PID 3660 wrote to memory of 2008	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	87
PID 3660 wrote to memory of 2008	3660	e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe	87
PID 2008 wrote to memory of 2940	2008	cmd.exe	89
PID 2008 wrote to memory of 2940	2008	cmd.exe	89
PID 2008 wrote to memory of 2940	2008	cmd.exe	89
PID 4444 wrote to memory of 3580	4444	cmd.exe	90
PID 4444 wrote to memory of 3580	4444	cmd.exe	90
PID 4444 wrote to memory of 3580	4444	cmd.exe	90
PID 2008 wrote to memory of 4956	2008	cmd.exe	91
PID 2008 wrote to memory of 4956	2008	cmd.exe	91
PID 2008 wrote to memory of 4956	2008	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe
"C:\Users\Admin\AppData\Local\Temp\e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3660
- 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:4444
- - 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:3580
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp97CB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2940
- - C:\Users\Admin\AppData\Roaming\System.exe
    "C:\Users\Admin\AppData\Roaming\System.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4956

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp97CB.tmp.bat

Filesize
150B

MD5
2e2a747a928df4d5b0d3ca902be89bf2

SHA1
ec8f7e013a8bb762a9b708e3ca8c42b07b492b4d

SHA256
46b485b32b0d3793fc4d2750030a5576f88447ceda10c4dcf98eca636f405106

SHA512
c43fd7d8930b0f5d1ea03f56d43eaba01e741626c2290d39630880a57e1eaeb745c98b526ad960dd98e4aa76c52478f607a2ae1924acfe62ada59306bd7f1c2e

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

Filesize
47KB

MD5
b54a96fc6a2c782fe559ab2a5a6c926f

SHA1
48ba8ab74fe7e669ef28304852728466b92998c3

SHA256
e6d47f48a0ce335565ab3f98b7fcea9b3078e0c8a100f9b85f5c1dd8e5c61647

SHA512
67a3c71c9ddb6eab42086f5881a2473832762f742cfe5f465a719d4cf69334629ff81797a5a438e74f12abbfd7850c15621919ac7babf3d7b3a357ca86c7531f

Download Submit
memory/3660-0-0x000000007544E000-0x000000007544F000-memory.dmp

Filesize
4KB

Download
memory/3660-1-0x0000000000B00000-0x0000000000B12000-memory.dmp

Filesize
72KB

Download
memory/3660-2-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-3-0x00000000054D0000-0x000000000556C000-memory.dmp

Filesize
624KB

Download
memory/3660-9-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4956-13-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4956-14-0x0000000005690000-0x0000000005C34000-memory.dmp

Filesize
5.6MB

Download
memory/4956-15-0x00000000050E0000-0x0000000005146000-memory.dmp

Filesize
408KB

Download
memory/4956-16-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads