asyncrat | ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e

General

Target
ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
Size 45KB
Sample260530-xesnrabs8v
SHA256 ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e
MD5 4f7b1b252bcd3638bc43f8b7aa668f56
SHA1 4be9b555791a700abf5efa38d9fe600bd2b89aa7
SHA512 cdc34885f5f2b9469742b9bf41952395d5ca9d4c08b953ba00f6816b992ca3d04d6e7dd04a9909cf7b7e6de421bec7abeae39aa5d0e86675f83bf1176bc5b9c1
SSDEEP 768:5udNpTNctooWUS7C+mo2qt+CHyTtTPIOzjbpgX3i1yQpFYKl6PvtBDZ0x:5udNpTNmU2JnKO3bmXS1y7kajd0x
TLSH
T102231B0037E88127F2BE4F78A8F26145867AF6673603D68D2CC441DB5623FC696426FE
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

hoatuoinuithanh.com:443
hoatuoinuithanh.com:80
hoatuoinuithanh.com:7797
hoatuoinuithanh.com:8707
hoatuoinuithanh.com:6620
www.hoatuoinuithanh.com:443
www.hoatuoinuithanh.com:80
www.hoatuoinuithanh.com:7797
www.hoatuoinuithanh.com:8707
www.hoatuoinuithanh.com:6620
remote.hoatuoinuithanh.com:443
remote.hoatuoinuithanh.com:80
remote.hoatuoinuithanh.com:7797
remote.hoatuoinuithanh.com:8707
remote.hoatuoinuithanh.com:6620
mirai.hoatuoinuithanh.com:443
mirai.hoatuoinuithanh.com:80
mirai.hoatuoinuithanh.com:7797
mirai.hoatuoinuithanh.com:8707
mirai.hoatuoinuithanh.com:6620
gh0st.hoatuoinuithanh.com:443
gh0st.hoatuoinuithanh.com:80
gh0st.hoatuoinuithanh.com:7797
gh0st.hoatuoinuithanh.com:8707
gh0st.hoatuoinuithanh.com:6620

Mutex

l27e5102uQwL

Attributes

delay
0
install
true
install_file
xxwzw3.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/0x001a00000002b501-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3256	xxwzw3.exe
4016	xxwzw3.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xxwzw3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xxwzw3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4292	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
5048	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
Token: SeDebugPrivilege	3256	xxwzw3.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4144	1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe	83
PID 1936 wrote to memory of 2060	1936	ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe	85
PID 4144 wrote to memory of 5048	4144	cmd.exe	87
PID 2060 wrote to memory of 4292	2060	cmd.exe	88
PID 2060 wrote to memory of 4016	2060	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe
"C:\Users\Admin\AppData\Local\Temp\ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xxwzw3" /tr '"C:\Users\Admin\AppData\Roaming\xxwzw3.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4144
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "xxwzw3" /tr '"C:\Users\Admin\AppData\Roaming\xxwzw3.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5048
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5DDA.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4292
- - C:\Users\Admin\AppData\Roaming\xxwzw3.exe
    "C:\Users\Admin\AppData\Roaming\xxwzw3.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4016

C:\Users\Admin\AppData\Roaming\xxwzw3.exe
"C:\Users\Admin\AppData\Roaming\xxwzw3.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3256

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

tmp5DDA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5DDA.tmp.bat
Size 150B
SHA256 2938f483c59b0d212b3cd2a71c89405e831fc4da645b6c65fae8716b796cb00e
MD5 f70173eb24f241f3cc9362d1900b4ff9
SHA1 ccae18dcdc6289b80607e61f960cfdb00af11841
SHA512 453187a3ca81799d820ef96820531b767dc816acdd7b1791baea5b622f91bd458023acfec6aaf6766f623327c4ce15e200aba764585b63af43a3fb95b49c308c
TLSH
T1B2C08C6295CAAA0E280A142302BA998C9162A81E3F40AB00C304409A628085CE499241
MD5 SHA1 SHA512 TLSH

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xxwzw3.exe

Path C:\Users\Admin\AppData\Roaming\xxwzw3.exe
Size 45KB
SHA256 ffd72d6dbfbe3cbfe03b0f04e6b186c7adc32182ff06181d2f35e0eeea29118e
MD5 4f7b1b252bcd3638bc43f8b7aa668f56
SHA1 4be9b555791a700abf5efa38d9fe600bd2b89aa7
SHA512 cdc34885f5f2b9469742b9bf41952395d5ca9d4c08b953ba00f6816b992ca3d04d6e7dd04a9909cf7b7e6de421bec7abeae39aa5d0e86675f83bf1176bc5b9c1
SSDEEP 768:5udNpTNctooWUS7C+mo2qt+CHyTtTPIOzjbpgX3i1yQpFYKl6PvtBDZ0x:5udNpTNmU2JnKO3bmXS1y7kajd0x
TLSH
T102231B0037E88127F2BE4F78A8F26145867AF6673603D68D2CC441DB5623FC696426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1936-0-0x0000000000D00000-0x0000000000D12000-memory.dmp

Download

memory/1936-1-0x00000000056C0000-0x00000000056D0000-memory.dmp

Download

memory/1936-2-0x0000000005790000-0x000000000582C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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