asyncrat | 3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206

General

Target

3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
Size

47KB
MD5

7f80e0ba8d535a408b950cca1c5653ae
SHA1

33805fe2b1e00a4b065f5960b35aa9f3247b1a0e
SHA256

3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206
SHA512

879fa9218f907f51b01aa488ace41047d51054fc1819aace05d4fd471d01a76281e5ad234644df0a921473b88fe1cf9ee6e8d4be866e683d33993023a6ee401e
SSDEEP

768:9uf09THIzbFGiWUUneomo2qXBjx32JUuHk3PIw8enoP0bnZ4DCzmX/A0v2Iu7k1H:9uf09TH2w24h5wjw8enpbnZS8mvIIuAp

Score

10^/10

asyncrat evet discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Evet

C2

188.240.81.233:3131

Mutex

dlKNZ2MxZjW2

Attributes

delay
3
install
true
install_file
system32.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001a00000002b1eb-12.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
4972	system32.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 6 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	system32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3336	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
5984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
Token: SeDebugPrivilege	4972	system32.exe
Token: SeDebugPrivilege	4972	system32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5420 wrote to memory of 3548	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	80
PID 5420 wrote to memory of 3548	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	80
PID 5420 wrote to memory of 3548	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	80
PID 5420 wrote to memory of 5304	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	82
PID 5420 wrote to memory of 5304	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	82
PID 5420 wrote to memory of 5304	5420	3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe	82
PID 5304 wrote to memory of 3336	5304	cmd.exe	84
PID 5304 wrote to memory of 3336	5304	cmd.exe	84
PID 5304 wrote to memory of 3336	5304	cmd.exe	84
PID 3548 wrote to memory of 5984	3548	cmd.exe	85
PID 3548 wrote to memory of 5984	3548	cmd.exe	85
PID 3548 wrote to memory of 5984	3548	cmd.exe	85
PID 5304 wrote to memory of 4972	5304	cmd.exe	86
PID 5304 wrote to memory of 4972	5304	cmd.exe	86
PID 5304 wrote to memory of 4972	5304	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe
"C:\Users\Admin\AppData\Local\Temp\3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "system32" /tr '"C:\Users\Admin\AppData\Roaming\system32.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "system32" /tr '"C:\Users\Admin\AppData\Roaming\system32.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5984
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8A3E.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5304
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3336
- - C:\Users\Admin\AppData\Roaming\system32.exe
    "C:\Users\Admin\AppData\Roaming\system32.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4972

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

C:\Users\Admin\AppData\Local\Temp\tmp8A3E.tmp.bat

Filesize
152B

MD5
948689d42ed52ee4730051753194fdc1

SHA1
dcb65480edabd3439338536b80e32065f4c24e4f

SHA256
2f14f3edf843a484c2b7543fab213bc8c857de7f7a81f57c7af7531fe9c0963a

SHA512
63ea518ab8d1a34279ab10eba261321e12f0103aacc3270ca4b3fa0cbf0a5996825327b61dc41173d237513b164148ed2fc9ecc62ba2bab67e875cd47c7414ff

Download Submit
C:\Users\Admin\AppData\Roaming\system32.exe

Filesize
47KB

MD5
7f80e0ba8d535a408b950cca1c5653ae

SHA1
33805fe2b1e00a4b065f5960b35aa9f3247b1a0e

SHA256
3ae3b3c0ef49720738acebeaa7ea58d511d28261e98fb95f30706e3be568e206

SHA512
879fa9218f907f51b01aa488ace41047d51054fc1819aace05d4fd471d01a76281e5ad234644df0a921473b88fe1cf9ee6e8d4be866e683d33993023a6ee401e

Download Submit
memory/4972-14-0x0000000074C80000-0x0000000075431000-memory.dmp

Filesize
7.7MB

Download
memory/4972-17-0x0000000005D40000-0x00000000062E6000-memory.dmp

Filesize
5.6MB

Download
memory/4972-18-0x0000000074C80000-0x0000000075431000-memory.dmp

Filesize
7.7MB

Download
memory/5420-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/5420-1-0x0000000000120000-0x0000000000132000-memory.dmp

Filesize
72KB

Download
memory/5420-2-0x0000000074D20000-0x00000000754D1000-memory.dmp

Filesize
7.7MB

Download
memory/5420-3-0x0000000004B90000-0x0000000004BF6000-memory.dmp

Filesize
408KB

Download
memory/5420-4-0x0000000005020000-0x00000000050BC000-memory.dmp

Filesize
624KB

Download
memory/5420-9-0x0000000074D20000-0x00000000754D1000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads