asyncrat | e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b

General

Target
e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
Size 45KB
Sample260530-yfec7act5x
SHA256 e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b
MD5 42a583ce9595fef0ece89d50f691c24f
SHA1 8f8c3139e947923a7bfa080c98735c92c00c0926
SHA512 c6a03dfa802d6c17dd88c27b44488d9513f041b3911eb6872029c2275764a68beacafba1f93b778c59796d9c9ef325cfcf81cc40ba9ee1c9ef4ba75a2f1c4e75
SSDEEP 768:JuxJNT5UR5rWUX8N5mo2qAb0e3+Kv18iZPIezjbdgU3iCmFaDS1p3OBDZbx:JuxJNT5OU2D3T6iWe3bKUSKDSjwdbx
TLSH
T1F1232B003BE9812BF2BE4F789CF26241867AF6672603D5491CC451DB5713FC69A43AEE
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

sexxtrungquoc.vip:443
sexxtrungquoc.vip:80
sexxtrungquoc.vip:7797
sexxtrungquoc.vip:8707
sexxtrungquoc.vip:6620
www.sexxtrungquoc.vip:443
www.sexxtrungquoc.vip:80
www.sexxtrungquoc.vip:7797
www.sexxtrungquoc.vip:8707
www.sexxtrungquoc.vip:6620
hack.sexxtrungquoc.vip:443
hack.sexxtrungquoc.vip:80
hack.sexxtrungquoc.vip:7797
hack.sexxtrungquoc.vip:8707
hack.sexxtrungquoc.vip:6620
zbot.sexxtrungquoc.vip:443
zbot.sexxtrungquoc.vip:80
zbot.sexxtrungquoc.vip:7797
zbot.sexxtrungquoc.vip:8707
zbot.sexxtrungquoc.vip:6620

Mutex

XOQKseOTxf7l

Attributes

delay
0
install
true
install_file
aiql.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 2 IoCs

rat

resource	yara_rule
behavioral1/files/0x00080000000228e0-8.dat	family_asyncrat
behavioral1/memory/1536-10-0x0000000002CD0000-0x0000000002CE0000-memory.dmp	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	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe

Executes dropped EXE 2 IoCs

pid	Process
1536	aiql.exe
792	aiql.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aiql.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aiql.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4716	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
1240	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
Token: SeDebugPrivilege	1536	aiql.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2612	2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe	88
PID 2520 wrote to memory of 3464	2520	e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe	90
PID 2612 wrote to memory of 1240	2612	cmd.exe	92
PID 3464 wrote to memory of 4716	3464	cmd.exe	93
PID 3464 wrote to memory of 792	3464	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe
"C:\Users\Admin\AppData\Local\Temp\e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "aiql" /tr '"C:\Users\Admin\AppData\Roaming\aiql.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "aiql" /tr '"C:\Users\Admin\AppData\Roaming\aiql.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1240
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5649.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4716
- - C:\Users\Admin\AppData\Roaming\aiql.exe
    "C:\Users\Admin\AppData\Roaming\aiql.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:792

C:\Users\Admin\AppData\Roaming\aiql.exe
"C:\Users\Admin\AppData\Roaming\aiql.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1536

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

Query Registry

1

T1012

System Information Discovery

2

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

tmp5649.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5649.tmp.bat
Size 148B
SHA256 60b5dfea738820e1fecb72c3506aa40af158ded3c4529efe65a8903f8d914d65
MD5 3aafff12227c9ab0df2535ef1772218e
SHA1 28faf6360b86c363b2e69680a4c76a6d6f86b280
SHA512 65b926cbc0b4f7aa786b9a36e8deb10c5ee7a85815ea1c7f99d26037db40eb7919b209c71c0e31d693550b3a8b65cbd2321998896013d6a329950f0b6ff6bbeb
TLSH
T1FBC02B4275C6EA1E3906142313FADD8D91766D1B3F40BB00C308462E1280448F0D9382
MD5 SHA1 SHA512 TLSH

Submit Download

aiql.exe

Path C:\Users\Admin\AppData\Roaming\aiql.exe
Size 45KB
SHA256 e1bde16b49c908c8fe510df025a7baf312f99203c032901f09476131de3ac62b
MD5 42a583ce9595fef0ece89d50f691c24f
SHA1 8f8c3139e947923a7bfa080c98735c92c00c0926
SHA512 c6a03dfa802d6c17dd88c27b44488d9513f041b3911eb6872029c2275764a68beacafba1f93b778c59796d9c9ef325cfcf81cc40ba9ee1c9ef4ba75a2f1c4e75
SSDEEP 768:JuxJNT5UR5rWUX8N5mo2qAb0e3+Kv18iZPIezjbdgU3iCmFaDS1p3OBDZbx:JuxJNT5OU2D3T6iWe3bKUSKDSjwdbx
TLSH
T1F1232B003BE9812BF2BE4F789CF26241867AF6672603D5491CC451DB5713FC69A43AEE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1536-10-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

Download

memory/1536-13-0x0000000002CD0000-0x0000000002CE0000-memory.dmp

Download

memory/2520-0-0x0000000000690000-0x00000000006A2000-memory.dmp

Download

memory/2520-1-0x0000000004FA0000-0x0000000004FB0000-memory.dmp

Download

memory/2520-2-0x0000000005060000-0x00000000050FC000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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