asyncrat | d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc

General

Target
d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
Size 45KB
Sample260601-px776aev2k
SHA256 d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc
MD5 95e34f67bce85804cb03841b6c9f360e
SHA1 ff4b1153760a4c2b9890c5c3d371dac7717eac05
SHA512 454c5209c1e30e3cef70996e9851642fa6460b698d9098aa524edcd72f70edc4301181f478f7524bad5049caa88406842b396445f3d6b3b55efce3e2607a92a1
SSDEEP 768:xuntVTRst9nWUbUNlmo2q9liaLMwJAOPIcAzjblgXkiCxvnb8knHfAMDEb3BDZzx:xuntVTR602S5n23cA3biXhCxvnb8knHY
TLSH
T1C3232B0037D8822BF2BE4F789CF26145867EB6673603D68E1CC4519B5613FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

xxxkoche.vip:443
xxxkoche.vip:80
xxxkoche.vip:7797
xxxkoche.vip:8707
xxxkoche.vip:6620
www.xxxkoche.vip:443
www.xxxkoche.vip:80
www.xxxkoche.vip:7797
www.xxxkoche.vip:8707
www.xxxkoche.vip:6620
lokibot.xxxkoche.vip:443
lokibot.xxxkoche.vip:80
lokibot.xxxkoche.vip:7797
lokibot.xxxkoche.vip:8707
lokibot.xxxkoche.vip:6620
conti.xxxkoche.vip:443
conti.xxxkoche.vip:80
conti.xxxkoche.vip:7797
conti.xxxkoche.vip:8707
conti.xxxkoche.vip:6620
downadup.xxxkoche.vip:443
downadup.xxxkoche.vip:80
downadup.xxxkoche.vip:7797
downadup.xxxkoche.vip:8707
downadup.xxxkoche.vip:6620

Mutex

HZ2xlKHQn4kN

Attributes

delay
0
install
true
install_file
cl5utn.exe
install_folder
%AppData%

aes.plain

Signatures

Family: 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/0x001c00000002b39b-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
992	cl5utn.exe
1840	cl5utn.exe

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 7 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	cl5utn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cl5utn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3304	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
3232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
Token: SeDebugPrivilege	992	cl5utn.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 3300	2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe	81
PID 2156 wrote to memory of 2800	2156	d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe	83
PID 3300 wrote to memory of 3232	3300	cmd.exe	85
PID 2800 wrote to memory of 3304	2800	cmd.exe	86
PID 2800 wrote to memory of 1840	2800	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe
"C:\Users\Admin\AppData\Local\Temp\d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cl5utn" /tr '"C:\Users\Admin\AppData\Roaming\cl5utn.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3300
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "cl5utn" /tr '"C:\Users\Admin\AppData\Roaming\cl5utn.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3232
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3ED9.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3304
- - C:\Users\Admin\AppData\Roaming\cl5utn.exe
    "C:\Users\Admin\AppData\Roaming\cl5utn.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1840

C:\Users\Admin\AppData\Roaming\cl5utn.exe
"C:\Users\Admin\AppData\Roaming\cl5utn.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:992

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

tmp3ED9.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3ED9.tmp.bat
Size 150B
SHA256 f3a4ad7259808f10e7cc7360e16f4f1322d9fba7031af3341516265abfce10bb
MD5 688d90c61ec18577f8df5493c3649501
SHA1 f0efb485b31d6e0c749b54cb8c3b6c4ef216403b
SHA512 ed0a2685b08ea028a32f88db15adb688e2c15652b01cd8ea30c742a5a5573e0fe9e3288b5798850e1126167b6e31310b0f0c3a9ecba7d6532e478f60920c0dd8
TLSH
T183C02B4751C7EA1E3C0B242306FAD4CCD1766C193F44BF00E304402E62C0888F4D9381
MD5 SHA1 SHA512 TLSH

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cl5utn.exe

Path C:\Users\Admin\AppData\Roaming\cl5utn.exe
Size 45KB
SHA256 d18d22ae77047302eeb51fd4098276ca536176678a7f896a7321ac3b35a8adbc
MD5 95e34f67bce85804cb03841b6c9f360e
SHA1 ff4b1153760a4c2b9890c5c3d371dac7717eac05
SHA512 454c5209c1e30e3cef70996e9851642fa6460b698d9098aa524edcd72f70edc4301181f478f7524bad5049caa88406842b396445f3d6b3b55efce3e2607a92a1
SSDEEP 768:xuntVTRst9nWUbUNlmo2q9liaLMwJAOPIcAzjblgXkiCxvnb8knHfAMDEb3BDZzx:xuntVTR602S5n23cA3biXhCxvnb8knHY
TLSH
T1C3232B0037D8822BF2BE4F789CF26145867EB6673603D68E1CC4519B5613FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2156-0-0x0000000000F10000-0x0000000000F22000-memory.dmp

Download

memory/2156-1-0x0000000005A80000-0x0000000005A90000-memory.dmp

Download

memory/2156-2-0x0000000005990000-0x0000000005A2C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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