asyncrat | e678e5f9e6e6985393a0813fd0ee9f89a6892faa40b89df8f9681160a71b5f2d

General

Target
hoiquantv.online.exe
Size 72KB
Sample261001-ssb6psfa94
SHA256 e678e5f9e6e6985393a0813fd0ee9f89a6892faa40b89df8f9681160a71b5f2d
MD5 462a9802d4ecffb5509aeab7a4e53190
SHA1 f85dcfc29af7ec928e2ebb4963e3940ec87d375c
SHA512 f0924de121a9a3f74f65b1857a6eb860c7a9eaf3acbdf4811346d3ecb431ead235a53da148efa67bd9b48d851f308074f0ed8514560ba7b5f48b3cbc160cbe0e
SSDEEP 1536:suuA1TFcJ2c1vx3b/XS31FIdueZ5/EAH5hJ:suusTFcJ2ovx3b/+IMoltHjJ
TLSH
T1017318302FE8829EF1B9CE7474A23175CE76AD772D0EFD19DC8034471A32A859642DE9
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

hoiquantv.online:6606
hoiquantv.online:7707
hoiquantv.online:8808
hoiquantv.online:443
hoiquantv.online:80

Mutex

RzjYAKZgDqJf

Attributes

delay
10
install
true
install_file
hoiquantv.online.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/0x0007000000024481-9.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-1-5-21-1846164713-4096795028-774071693-1000\Control Panel\International\Geo\Nation	hoiquantv.online.exe

Executes dropped EXE 2 IoCs

pid	Process
1132	hoiquantv.online.exe
3472	hoiquantv.online.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
4972	cmd.exe
416	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	hoiquantv.online.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	hoiquantv.online.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	hoiquantv.online.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	hoiquantv.online.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	hoiquantv.online.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hoiquantv.online.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hoiquantv.online.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2876	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
1532	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe
2460	hoiquantv.online.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	hoiquantv.online.exe
Token: SeDebugPrivilege	1132	hoiquantv.online.exe
Token: SeDebugPrivilege	1132	hoiquantv.online.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 4972	2460	hoiquantv.online.exe	97
PID 2460 wrote to memory of 416	2460	hoiquantv.online.exe	99
PID 416 wrote to memory of 2876	416	cmd.exe	101
PID 4972 wrote to memory of 1532	4972	cmd.exe	102
PID 416 wrote to memory of 3472	416	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\hoiquantv.online.exe
"C:\Users\Admin\AppData\Local\Temp\hoiquantv.online.exe"
1⤵
- Checks computer location settings
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv.online" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv.online" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1532
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEFAA.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:416
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2876
- - C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe
    "C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3472

C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe
"C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe"
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1132

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

hoiquantv.online.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\hoiquantv.online.exe.log
Size 614B
SHA256 9ed5449a36700939987209c7a2974b9cc669b8b22c7c4e7936f35dda0a4dc359
MD5 54920f388010333559bdff225040761d
SHA1 040972bf1fc83014f10c45832322c094f883ce30
SHA512 e17aa5d1328b3bfd3754d15b3c2eded98653d90c7b326f941522e0b3bd6f557880246a6bc69047facb42eb97d2e0ed6c46148dfe95a98669fc4e1d07c21a285c
TLSH
T109F08B303722E1D88D522F521C2C7A9953EF078AB7A0DF2C7958536EDC26557AB211E3
MD5 SHA1 SHA512 TLSH

Submit Download

tmpEFAA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpEFAA.tmp.bat
Size 160B
SHA256 209d89351cfe272a4b72a930efc8e309b447f9e421a5252a6fab7ea433933029
MD5 1d3256200d4d7712ba92687f4d7de17f
SHA1 d25dbdfdb564832deb54e48cdbdb696b554314c8
SHA512 0d4d766a08ee52d7296103e98e2b7f106bdcfaab8ecf98018921acbb9dbf52db5b558b242e2d0d0e71f9178d1e8c3b99771393c94449d4f667435afa493f0474
TLSH
T13FC08C9255CEAA4EA805641302BAD99CB1B76D1A3E84BB04C7445089A6C054CF4DA24A
MD5 SHA1 SHA512 TLSH

Submit Download

hoiquantv.online.exe

Path C:\Users\Admin\AppData\Roaming\hoiquantv.online.exe
Size 72KB
SHA256 e678e5f9e6e6985393a0813fd0ee9f89a6892faa40b89df8f9681160a71b5f2d
MD5 462a9802d4ecffb5509aeab7a4e53190
SHA1 f85dcfc29af7ec928e2ebb4963e3940ec87d375c
SHA512 f0924de121a9a3f74f65b1857a6eb860c7a9eaf3acbdf4811346d3ecb431ead235a53da148efa67bd9b48d851f308074f0ed8514560ba7b5f48b3cbc160cbe0e
SSDEEP 1536:suuA1TFcJ2c1vx3b/XS31FIdueZ5/EAH5hJ:suusTFcJ2ovx3b/+IMoltHjJ
TLSH
T1017318302FE8829EF1B9CE7474A23175CE76AD772D0EFD19DC8034471A32A859642DE9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2460-0-0x0000000000A30000-0x0000000000A48000-memory.dmp

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memory/2460-1-0x0000000005280000-0x0000000005290000-memory.dmp

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memory/2460-2-0x0000000005290000-0x00000000052F6000-memory.dmp

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memory/2460-3-0x00000000056E0000-0x000000000577C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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