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

2720 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

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

Processes:

timeout.exe

pid process

2004 timeout.exe

pid	process
2720	svchost.exe

pid	process
932	schtasks.exe

pid	process
2004	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exe

pid	process
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
3952	04d0649b4bfa1dfeae3a8c86453397a3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exesvchost.exe

description pid process

Token: SeDebugPrivilege 3952 04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege 2720 svchost.exe

description	pid	process
Token: SeDebugPrivilege	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege	2720	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.execmd.execmd.exe

description	pid	process	target process
PID 3952 wrote to memory of 1236	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 3952 wrote to memory of 1236	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 3952 wrote to memory of 1236	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 3952 wrote to memory of 184	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 3952 wrote to memory of 184	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 3952 wrote to memory of 184	3952	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 184 wrote to memory of 2004	184	cmd.exe	timeout.exe
PID 184 wrote to memory of 2004	184	cmd.exe	timeout.exe
PID 184 wrote to memory of 2004	184	cmd.exe	timeout.exe
PID 1236 wrote to memory of 932	1236	cmd.exe	schtasks.exe
PID 1236 wrote to memory of 932	1236	cmd.exe	schtasks.exe
PID 1236 wrote to memory of 932	1236	cmd.exe	schtasks.exe
PID 184 wrote to memory of 2720	184	cmd.exe	svchost.exe
PID 184 wrote to memory of 2720	184	cmd.exe	svchost.exe
PID 184 wrote to memory of 2720	184	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:3952
- 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:1236
- - 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:932
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3C05.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2004
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2720

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3C05.tmp.bat

MD5
fe9d143e25bb4f93dfa9c385d3c3752f

SHA1
9b84b12950f8505d576b3920ca34e79430563dd8

SHA256
707d9e965ae4212a4409c97fcdfb6a66aeccea768f0129b55d207fb10df9bbf1

SHA512
ec7a4c36b7b4280372510eca364a4e40a4388df4a37d215e5fb64afd2b69bcf77af0d04ea2ca97b0d617913106943fbb95541b5232f1ca72db3981ae3bda7e3b

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/184-119-0x0000000000000000-mapping.dmp

Download
memory/932-122-0x0000000000000000-mapping.dmp

Download
memory/1236-118-0x0000000000000000-mapping.dmp

Download
memory/2004-121-0x0000000000000000-mapping.dmp

Download
memory/2720-123-0x0000000000000000-mapping.dmp

Download
memory/2720-128-0x0000000005301000-0x0000000005302000-memory.dmp

Filesize
4KB

Download
memory/2720-130-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

Filesize
4KB

Download
memory/2720-131-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

Filesize
4KB

Download
memory/3952-114-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/3952-117-0x0000000004A40000-0x0000000004A41000-memory.dmp

Filesize
4KB

Download
memory/3952-116-0x0000000004A30000-0x0000000004A31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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