asyncrat | 389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd

General

Target
389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
Size 45KB
Sample260803-ftdppscm31
SHA256 389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd
MD5 159c8ae856772fb53d32ce30269290e5
SHA1 f8865c157493845ee0afc3382d92f94c455d1511
SHA512 b17fba0329a2a6c5f3801772467042f1dbf0ac81958cec78c27ca45f3496248d11391162a5fb40efa80a6a15bf3a63dbc4bdd686871e698b60e82de9d264c647
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q16T2QAm7PI1djbAgX3iOgNWqCEEEhWCdZMPBDZcx:RuxkJTgip2mT11bnXSOKMEEqJZUdcx
TLSH
T176230A003BE8813AF2BE4F78A8F26145867AF2637603D54D6CC451DB5623FC69A426F9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

haysexcdn.net:80
haysexcdn.net:22
haysexcdn.net:8080
haysexcdn.net:8880
haysexcdn.net:2052
haysexcdn.net:2082
haysexcdn.net:2086
haysexcdn.net:2095
haysexcdn.net:443
haysexcdn.net:2053
haysexcdn.net:2083
haysexcdn.net:2087
haysexcdn.net:2096
haysexcdn.net:8443
www.haysexcdn.net:80
www.haysexcdn.net:22
www.haysexcdn.net:8080
www.haysexcdn.net:8880
www.haysexcdn.net:2052
www.haysexcdn.net:2082
www.haysexcdn.net:2086
www.haysexcdn.net:2095
www.haysexcdn.net:443
www.haysexcdn.net:2053
www.haysexcdn.net:2083
www.haysexcdn.net:2087
www.haysexcdn.net:2096
www.haysexcdn.net:8443
stuxnet.haysexcdn.net:80
stuxnet.haysexcdn.net:22
stuxnet.haysexcdn.net:8080
stuxnet.haysexcdn.net:8880
stuxnet.haysexcdn.net:2052
stuxnet.haysexcdn.net:2082
stuxnet.haysexcdn.net:2086
stuxnet.haysexcdn.net:2095
stuxnet.haysexcdn.net:443
stuxnet.haysexcdn.net:2053
stuxnet.haysexcdn.net:2083
stuxnet.haysexcdn.net:2087
stuxnet.haysexcdn.net:2096
stuxnet.haysexcdn.net:8443
qbot.haysexcdn.net:80
qbot.haysexcdn.net:22
qbot.haysexcdn.net:8080
qbot.haysexcdn.net:8880
qbot.haysexcdn.net:2052
qbot.haysexcdn.net:2082
qbot.haysexcdn.net:2086
qbot.haysexcdn.net:2095
qbot.haysexcdn.net:443
qbot.haysexcdn.net:2053
qbot.haysexcdn.net:2083
qbot.haysexcdn.net:2087
qbot.haysexcdn.net:2096
qbot.haysexcdn.net:8443

Mutex

36BElXwi7fav

Attributes

delay
0
install
true
install_file
hwp18gs8.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
behavioral1/files/0x000a000000024126-8.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-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe

Executes dropped EXE 2 IoCs

pid	Process
1112	hwp18gs8.exe
4704	hwp18gs8.exe

Outbound SSH connection to public host 2 TTPs 3 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc	pid	Process
SSH destination	16	104.26.5.211:22	1112	hwp18gs8.exe
SSH destination	32	172.67.73.19:22	1112	hwp18gs8.exe
SSH destination	33	104.26.4.211:22	1112	hwp18gs8.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1204	cmd.exe
3176	cmd.exe

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	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hwp18gs8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hwp18gs8.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4220	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
3456	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
Token: SeDebugPrivilege	1112	hwp18gs8.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 1204	4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe	85
PID 4636 wrote to memory of 3176	4636	389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe	87
PID 3176 wrote to memory of 4220	3176	cmd.exe	89
PID 1204 wrote to memory of 3456	1204	cmd.exe	90
PID 3176 wrote to memory of 4704	3176	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe
"C:\Users\Admin\AppData\Local\Temp\389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hwp18gs8" /tr '"C:\Users\Admin\AppData\Roaming\hwp18gs8.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "hwp18gs8" /tr '"C:\Users\Admin\AppData\Roaming\hwp18gs8.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3456
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4476.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3176
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4220
- - C:\Users\Admin\AppData\Roaming\hwp18gs8.exe
    "C:\Users\Admin\AppData\Roaming\hwp18gs8.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4704

C:\Users\Admin\AppData\Roaming\hwp18gs8.exe
"C:\Users\Admin\AppData\Roaming\hwp18gs8.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1112

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

Network Service Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

1

T1572

Exfiltration

Impact

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Downloads

tmp4476.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4476.tmp.bat
Size 152B
SHA256 9b10b44606df0bd83efa8c2433502632ac61940225cfa316917ba54ef1ce3cc4
MD5 b487d28dee71d980dd495e594f90302b
SHA1 0db453b92b19577025e25299adf8c9ca916eedca
SHA512 a485b6ab0f6f6fb273f1f5c89888eeb428a24f90d5b3f67e00f689012f3c9e809289a967131b95f777b63a85f396dbc2e5ec9db903e5c3e8e6741e4216bea072
TLSH
T1F3C08C42A9C6AE1E680A281312FAA59C9272A8293E88AF008304445D529044CF0AA345
MD5 SHA1 SHA512 TLSH

Submit Download

hwp18gs8.exe

Path C:\Users\Admin\AppData\Roaming\hwp18gs8.exe
Size 45KB
SHA256 389280490b754c6ab0e0b9774c6ad098a9ab1f3e572bb9182bdbcecf17f837fd
MD5 159c8ae856772fb53d32ce30269290e5
SHA1 f8865c157493845ee0afc3382d92f94c455d1511
SHA512 b17fba0329a2a6c5f3801772467042f1dbf0ac81958cec78c27ca45f3496248d11391162a5fb40efa80a6a15bf3a63dbc4bdd686871e698b60e82de9d264c647
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q16T2QAm7PI1djbAgX3iOgNWqCEEEhWCdZMPBDZcx:RuxkJTgip2mT11bnXSOKMEEqJZUdcx
TLSH
T176230A003BE8813AF2BE4F78A8F26145867AF2637603D54D6CC451DB5623FC69A426F9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1112-10-0x0000000004A10000-0x0000000004A20000-memory.dmp

Download

memory/1112-13-0x0000000004A10000-0x0000000004A20000-memory.dmp

Download

memory/4636-0-0x0000000000580000-0x0000000000592000-memory.dmp

Download

memory/4636-1-0x0000000004F10000-0x0000000004F20000-memory.dmp

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memory/4636-2-0x0000000004FC0000-0x000000000505C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads