asyncrat | 9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41

General

Target
9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
Size 45KB
Sample260601-nenv5abz2n
SHA256 9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41
MD5 3febee19f257906987550cccd959bf4a
SHA1 d233649a5a63a59667faca0573bf6fdd2f381821
SHA512 ddf1abe5d7cb35a8d7fe4db44b4f3eb9eafdaf363151b599f3064cfe6e686373063c0e118faeb6305896c97635f401eea5d8b885a7980bdf6a3996611ee04a62
SSDEEP 768:Qul+JTEs+EgWUKJTGmo2q9u/NYssPJZOPIczzjbpgXciDvor/TnBDZTx:Qul+JTE9X2BHIf3cz3bmXZQFdTx
TLSH
T100232B0037E8822BF2BE4F789DF26145867AE2673603D58E1CC451DB5613FC69A426FD
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

sexvietnew.live:443
sexvietnew.live:80
sexvietnew.live:7797
sexvietnew.live:8707
sexvietnew.live:6620
www.sexvietnew.live:443
www.sexvietnew.live:80
www.sexvietnew.live:7797
www.sexvietnew.live:8707
www.sexvietnew.live:6620
lokibot.sexvietnew.live:443
lokibot.sexvietnew.live:80
lokibot.sexvietnew.live:7797
lokibot.sexvietnew.live:8707
lokibot.sexvietnew.live:6620
remote.sexvietnew.live:443
remote.sexvietnew.live:80
remote.sexvietnew.live:7797
remote.sexvietnew.live:8707
remote.sexvietnew.live:6620
gh0st.sexvietnew.live:443
gh0st.sexvietnew.live:80
gh0st.sexvietnew.live:7797
gh0st.sexvietnew.live:8707
gh0st.sexvietnew.live:6620

Mutex

tmheG13Bov3M

Attributes

delay
0
install
true
install_file
whso9q.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/0x001a00000002b632-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4472	whso9q.exe
3808	whso9q.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	whso9q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	whso9q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4916	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
4260	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
Token: SeDebugPrivilege	4472	whso9q.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 2828	4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe	82
PID 4588 wrote to memory of 3268	4588	9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe	84
PID 3268 wrote to memory of 4916	3268	cmd.exe	86
PID 2828 wrote to memory of 4260	2828	cmd.exe	87
PID 3268 wrote to memory of 3808	3268	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe
"C:\Users\Admin\AppData\Local\Temp\9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "whso9q" /tr '"C:\Users\Admin\AppData\Roaming\whso9q.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "whso9q" /tr '"C:\Users\Admin\AppData\Roaming\whso9q.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4260
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8940.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4916
- - C:\Users\Admin\AppData\Roaming\whso9q.exe
    "C:\Users\Admin\AppData\Roaming\whso9q.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3808

C:\Users\Admin\AppData\Roaming\whso9q.exe
"C:\Users\Admin\AppData\Roaming\whso9q.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4472

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

tmp8940.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp8940.tmp.bat
Size 150B
SHA256 8874751892208cbc94799e296395caafb9194ab00c3cac8eac651b396370ced3
MD5 868b6a0f6a6e344d51d0745fb8e32849
SHA1 2395f697ae255a6ca839fbb0b1d3001591f708ac
SHA512 0517977d228d6864e616a1a75eb857e2c6cc334daf8c2ed9c7c379fede815d0ff16158d077c517edadbfbf384e279e8cc3e4f55207472cb806cc0f51ee6ae50b
TLSH
T15FC02B8266CAEB4E2805643B03FAD5CCA172EC1A3F40BB10D704401E52C0868F0DD383
MD5 SHA1 SHA512 TLSH

Submit Download

whso9q.exe

Path C:\Users\Admin\AppData\Roaming\whso9q.exe
Size 45KB
SHA256 9d82e4c60d544deed5c04f69f73ae90015642e4968944d9987f8f97181492a41
MD5 3febee19f257906987550cccd959bf4a
SHA1 d233649a5a63a59667faca0573bf6fdd2f381821
SHA512 ddf1abe5d7cb35a8d7fe4db44b4f3eb9eafdaf363151b599f3064cfe6e686373063c0e118faeb6305896c97635f401eea5d8b885a7980bdf6a3996611ee04a62
SSDEEP 768:Qul+JTEs+EgWUKJTGmo2q9u/NYssPJZOPIczzjbpgXciDvor/TnBDZTx:Qul+JTE9X2BHIf3cz3bmXZQFdTx
TLSH
T100232B0037E8822BF2BE4F789DF26145867AE2673603D58E1CC451DB5613FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4588-0-0x0000000000910000-0x0000000000922000-memory.dmp

Download

memory/4588-1-0x0000000005400000-0x0000000005410000-memory.dmp

Download

memory/4588-2-0x0000000005410000-0x00000000054AC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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