asyncrat | d9e41149e26ccf42ca76a9de47760f6b60f945d9a7286e2c3116dde321c2b53c

General

Target

5637387ab7560ab5b55504b75427b020N.exe
Size

51KB
MD5

5637387ab7560ab5b55504b75427b020
SHA1

1d98f29eaa287e6f574a022bd2aee5c7e1db7b32
SHA256

d9e41149e26ccf42ca76a9de47760f6b60f945d9a7286e2c3116dde321c2b53c
SHA512

9f23eeeecadf58e5bba5860a0732c2959a4352f72941569e136a8082d2a500a08542ca44cc3248e06b7749a1fca538d76175aba6c0d8ed20a8cf17b75afbaec2
SSDEEP

1536:Ouqw9T9xt2joXK5oqkX8KPbQ6aQ+kmG1dSq:Ouq8T9xt2MXCo7X8KPbQQ+5Ywq

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:1313

127.0.0.1:11671

education-fragrance.gl.at.ply.gg:6606

education-fragrance.gl.at.ply.gg:7707

education-fragrance.gl.at.ply.gg:8808

education-fragrance.gl.at.ply.gg:1313

education-fragrance.gl.at.ply.gg:11671

Mutex

meRjguwJQzIR

Attributes

delay
3
install
true
install_file
AHK.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/0x000b000000023433-12.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-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	5637387ab7560ab5b55504b75427b020N.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	AHK.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
428	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
4796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe
1620	5637387ab7560ab5b55504b75427b020N.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1620	5637387ab7560ab5b55504b75427b020N.exe
Token: SeDebugPrivilege	2712	AHK.exe
Token: SeDebugPrivilege	2712	AHK.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 1644	1620	5637387ab7560ab5b55504b75427b020N.exe	87
PID 1620 wrote to memory of 1644	1620	5637387ab7560ab5b55504b75427b020N.exe	87
PID 1620 wrote to memory of 1644	1620	5637387ab7560ab5b55504b75427b020N.exe	87
PID 1620 wrote to memory of 4872	1620	5637387ab7560ab5b55504b75427b020N.exe	89
PID 1620 wrote to memory of 4872	1620	5637387ab7560ab5b55504b75427b020N.exe	89
PID 1620 wrote to memory of 4872	1620	5637387ab7560ab5b55504b75427b020N.exe	89
PID 4872 wrote to memory of 428	4872	cmd.exe	91
PID 4872 wrote to memory of 428	4872	cmd.exe	91
PID 4872 wrote to memory of 428	4872	cmd.exe	91
PID 1644 wrote to memory of 4796	1644	cmd.exe	92
PID 1644 wrote to memory of 4796	1644	cmd.exe	92
PID 1644 wrote to memory of 4796	1644	cmd.exe	92
PID 4872 wrote to memory of 2712	4872	cmd.exe	93
PID 4872 wrote to memory of 2712	4872	cmd.exe	93
PID 4872 wrote to memory of 2712	4872	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\5637387ab7560ab5b55504b75427b020N.exe
"C:\Users\Admin\AppData\Local\Temp\5637387ab7560ab5b55504b75427b020N.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AHK" /tr '"C:\Users\Admin\AppData\Roaming\AHK.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "AHK" /tr '"C:\Users\Admin\AppData\Roaming\AHK.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4796
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAE60.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4872
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:428
- - C:\Users\Admin\AppData\Roaming\AHK.exe
    "C:\Users\Admin\AppData\Roaming\AHK.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2712

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\tmpAE60.tmp.bat

Filesize
147B

MD5
139df7965dd61481b2be3c5aa906d096

SHA1
5d14a9ecdb107bc866bc4680d6a0450aeccb7dfb

SHA256
a104b80486633cff816fcfe5b110187868ef3cebb3b722aeb28ae443365df4c7

SHA512
2d3124bdbd1b033500507935694c94a4a17e11919e65cc6801dcc552659e91a4a4f14b5d5adbdcae427c3e63fe031db133c17c541289917aa0e25818636e07fc

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

Filesize
51KB

MD5
5637387ab7560ab5b55504b75427b020

SHA1
1d98f29eaa287e6f574a022bd2aee5c7e1db7b32

SHA256
d9e41149e26ccf42ca76a9de47760f6b60f945d9a7286e2c3116dde321c2b53c

SHA512
9f23eeeecadf58e5bba5860a0732c2959a4352f72941569e136a8082d2a500a08542ca44cc3248e06b7749a1fca538d76175aba6c0d8ed20a8cf17b75afbaec2

Download Submit
memory/1620-0-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/1620-1-0x0000000000B60000-0x0000000000B72000-memory.dmp

Filesize
72KB

Download
memory/1620-2-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/1620-3-0x0000000005540000-0x00000000055A6000-memory.dmp

Filesize
408KB

Download
memory/1620-4-0x0000000005990000-0x0000000005A2C000-memory.dmp

Filesize
624KB

Download
memory/1620-10-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/2712-14-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/2712-15-0x0000000074A30000-0x00000000751E0000-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