asyncrat | 82d0600bcebe2f55971be96182fc9c164c15308c214560a8c90d979aa03426e4

General

Target

086789aa35a788528d13e3601d24f888.exe
Size

1.1MB
MD5

086789aa35a788528d13e3601d24f888
SHA1

e7f740dd7a89334a7e5c358bda8bfcf492b9c1fc
SHA256

82d0600bcebe2f55971be96182fc9c164c15308c214560a8c90d979aa03426e4
SHA512

e40d0c1b3b3a05ec93cb19aa2f2f2bafa24ab14e9c0bd8b9029a2c487cdb3ccb4bc12001ccdcf2baa6cef280c1638d23848306f2b9254c9fb022b609047ce5ee

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

45.15.143.199:6606

45.15.143.199:7707

45.15.143.199:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
OoiQ3awN02CPVF1J0BXVxr90eBdh9zc6
anti_detection
false
autorun
false
bdos
false
delay
Default
host
45.15.143.199
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6606,7707,8808
version
0.5.7B

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/612-66-0x000000000040C70E-mapping.dmp	asyncrat
behavioral1/memory/612-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/612-67-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs

Processes:

086789aa35a788528d13e3601d24f888.exe

pid	process
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

086789aa35a788528d13e3601d24f888.exe

description pid process target process

PID 1104 set thread context of 612 1104 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

332 1104 WerFault.exe 086789aa35a788528d13e3601d24f888.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1636 timeout.exe

description	pid	process	target process
PID 1104 set thread context of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe

pid	pid_target	process	target process
332	1104	WerFault.exe	086789aa35a788528d13e3601d24f888.exe

pid	process
1636	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

086789aa35a788528d13e3601d24f888.exeWerFault.exe

pid	process
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
1104	086789aa35a788528d13e3601d24f888.exe
332	WerFault.exe
332	WerFault.exe
332	WerFault.exe
332	WerFault.exe
332	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

332 WerFault.exe

pid	process
332	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

086789aa35a788528d13e3601d24f888.exeWerFault.exe086789aa35a788528d13e3601d24f888.exe

description	pid	process
Token: SeDebugPrivilege	1104	086789aa35a788528d13e3601d24f888.exe
Token: SeDebugPrivilege	332	WerFault.exe
Token: SeDebugPrivilege	612	086789aa35a788528d13e3601d24f888.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

086789aa35a788528d13e3601d24f888.execmd.exe

description	pid	process	target process
PID 1104 wrote to memory of 840	1104	086789aa35a788528d13e3601d24f888.exe	cmd.exe
PID 1104 wrote to memory of 840	1104	086789aa35a788528d13e3601d24f888.exe	cmd.exe
PID 1104 wrote to memory of 840	1104	086789aa35a788528d13e3601d24f888.exe	cmd.exe
PID 1104 wrote to memory of 840	1104	086789aa35a788528d13e3601d24f888.exe	cmd.exe
PID 840 wrote to memory of 1636	840	cmd.exe	timeout.exe
PID 840 wrote to memory of 1636	840	cmd.exe	timeout.exe
PID 840 wrote to memory of 1636	840	cmd.exe	timeout.exe
PID 840 wrote to memory of 1636	840	cmd.exe	timeout.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 612	1104	086789aa35a788528d13e3601d24f888.exe	086789aa35a788528d13e3601d24f888.exe
PID 1104 wrote to memory of 332	1104	086789aa35a788528d13e3601d24f888.exe	WerFault.exe
PID 1104 wrote to memory of 332	1104	086789aa35a788528d13e3601d24f888.exe	WerFault.exe
PID 1104 wrote to memory of 332	1104	086789aa35a788528d13e3601d24f888.exe	WerFault.exe
PID 1104 wrote to memory of 332	1104	086789aa35a788528d13e3601d24f888.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe
"C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:840

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1636

C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe
"C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 884
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/332-69-0x0000000000000000-mapping.dmp

Download
memory/332-70-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/612-66-0x000000000040C70E-mapping.dmp

Download
memory/612-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/612-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/612-71-0x0000000076E11000-0x0000000076E13000-memory.dmp

Filesize
8KB

Download
memory/612-72-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/840-62-0x0000000000000000-mapping.dmp

Download
memory/1104-59-0x00000000011F0000-0x00000000011F1000-memory.dmp

Filesize
4KB

Download
memory/1104-61-0x0000000000A20000-0x0000000000A48000-memory.dmp

Filesize
160KB

Download
memory/1104-64-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/1636-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads