asyncrat | 26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

General

Target

04d0649b4bfa1dfeae3a8c86453397a3.exe
Size

45KB
MD5

04d0649b4bfa1dfeae3a8c86453397a3
SHA1

f47a6585df4bbb264017cacbb11a2d0e88fcea84
SHA256

26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870
SHA512

e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

8.tcp.ngrok.io:18318

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
v4WrWlQmMr9Nbg46PqpYZ1ZQie6iSq6f
anti_detection
false
autorun
true
bdos
false
delay
Default
host
8.tcp.ngrok.io
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
18318
version
0.5.7B

aes.plain

Signatures

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

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3888 svchost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1264 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3592 timeout.exe

pid	process
3888	svchost.exe

pid	process
1264	schtasks.exe

pid	process
3592	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exe

pid	process
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe
584	04d0649b4bfa1dfeae3a8c86453397a3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exesvchost.exe

description pid process

Token: SeDebugPrivilege 584 04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege 3888 svchost.exe

description	pid	process
Token: SeDebugPrivilege	584	04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege	3888	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.execmd.execmd.exe

description	pid	process	target process
PID 584 wrote to memory of 960	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 584 wrote to memory of 960	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 584 wrote to memory of 960	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 584 wrote to memory of 1252	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 584 wrote to memory of 1252	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 584 wrote to memory of 1252	584	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 960 wrote to memory of 1264	960	cmd.exe	schtasks.exe
PID 960 wrote to memory of 1264	960	cmd.exe	schtasks.exe
PID 960 wrote to memory of 1264	960	cmd.exe	schtasks.exe
PID 1252 wrote to memory of 3592	1252	cmd.exe	timeout.exe
PID 1252 wrote to memory of 3592	1252	cmd.exe	timeout.exe
PID 1252 wrote to memory of 3592	1252	cmd.exe	timeout.exe
PID 1252 wrote to memory of 3888	1252	cmd.exe	svchost.exe
PID 1252 wrote to memory of 3888	1252	cmd.exe	svchost.exe
PID 1252 wrote to memory of 3888	1252	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe
"C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:1264

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9197.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3592

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3888

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9197.tmp.bat
MD5
f1e81d3cadd3e4ce743de22fe8d21b9d

SHA1
7b9d05ab788e0ead99343c4a183244fc75f5a012

SHA256
c938c5da7e9a941f266cc4265d0e1550344bf03f2e4cafe15f61f36b0cea19b8

SHA512
03c62721614fb92b5469d0f1c66a34ce50334e3fd5a302b8daa61801c99178086ace56229479a004aad0eb4d4e0211c442b08b86535ebb5328a92dc94f1cced3

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
04d0649b4bfa1dfeae3a8c86453397a3

SHA1
f47a6585df4bbb264017cacbb11a2d0e88fcea84

SHA256
26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

SHA512
e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
04d0649b4bfa1dfeae3a8c86453397a3

SHA1
f47a6585df4bbb264017cacbb11a2d0e88fcea84

SHA256
26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

SHA512
e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Download Submit
memory/584-116-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/584-117-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

Filesize
4KB

Download
memory/584-114-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/960-118-0x0000000000000000-mapping.dmp

Download
memory/1252-119-0x0000000000000000-mapping.dmp

Download
memory/1264-121-0x0000000000000000-mapping.dmp

Download
memory/3592-122-0x0000000000000000-mapping.dmp

Download
memory/3888-123-0x0000000000000000-mapping.dmp

Download
memory/3888-128-0x0000000005701000-0x0000000005702000-memory.dmp

Filesize
4KB

Download
memory/3888-130-0x00000000064F0000-0x00000000064F1000-memory.dmp

Filesize
4KB

Download
memory/3888-131-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads