asyncrat | 2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7

General

Target

2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
Size

63KB
MD5

a07981dacdc37e2dcee6555cf89f504b
SHA1

f3f2804e66b02e50e1cd402c7a534d886ea708b1
SHA256

2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7
SHA512

ddd3e5d010b8694569705b77455bfb524445d4e376ba01fe6cac3e9d7d79075e367c21c81a4fdb97413836cb1f60b54bca10e6fee478cee12c3c6610c39c0141
SSDEEP

1536:0ZaJIKsnhKfMZ4JGbbpwlHhGPkpqKmY7:0nKOhfgGbbpaavz

Score

10^/10

asyncrat chuwawa rat

Malware Config

Extracted

Family

asyncrat

Version

ChuWaWa 5.2

Botnet

ChuWaWa

C2

stores-less.gl.at.ply.gg:7777

stores-less.gl.at.ply.gg:45080

31.173.170.243:7777

31.173.170.243:45080

Mutex

ChuWaWaRatMutex_penka

Attributes

delay
1
install
true
install_file
RuntimeBroker.exe
install_folder
%AppData%

aes.plain

Signatures

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
behavioral1/files/0x0007000000012117-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2800	RuntimeBroker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2804	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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
Token: SeDebugPrivilege	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
Token: SeDebugPrivilege	2800	RuntimeBroker.exe
Token: SeDebugPrivilege	2800	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2116	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	30
PID 2112 wrote to memory of 2116	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	30
PID 2112 wrote to memory of 2116	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	30
PID 2112 wrote to memory of 3040	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	31
PID 2112 wrote to memory of 3040	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	31
PID 2112 wrote to memory of 3040	2112	2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe	31
PID 3040 wrote to memory of 2804	3040	cmd.exe	34
PID 3040 wrote to memory of 2804	3040	cmd.exe	34
PID 3040 wrote to memory of 2804	3040	cmd.exe	34
PID 2116 wrote to memory of 2808	2116	cmd.exe	35
PID 2116 wrote to memory of 2808	2116	cmd.exe	35
PID 2116 wrote to memory of 2808	2116	cmd.exe	35
PID 3040 wrote to memory of 2800	3040	cmd.exe	36
PID 3040 wrote to memory of 2800	3040	cmd.exe	36
PID 3040 wrote to memory of 2800	3040	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe
"C:\Users\Admin\AppData\Local\Temp\2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2808
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpA4E7.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3040
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2804
- - C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
    "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2800

Network

MITRE ATT&CK Enterprise v15

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

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA4E7.tmp.bat

Filesize
157B

MD5
6b79a48027d410321dbb3ffee086be4b

SHA1
92bb1eec79f173ff4e20a95bfe09b38e90fc5b84

SHA256
b047eb2772fa8f46ae5b3be6fa7530971472aa43bad2570f3890333133464636

SHA512
3039b1f5ec204303325287e6ee94b82b9a00ae715e708b13692e7e8ad9e42aeb78a366f1044a495fd055cd7e760041c7b31756c626c8035d4e0ed555fb0cd044

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

Filesize
63KB

MD5
a07981dacdc37e2dcee6555cf89f504b

SHA1
f3f2804e66b02e50e1cd402c7a534d886ea708b1

SHA256
2d2b207af1b1ad9dccb96a6c77c1be6994e69a4a1272db05b9b8239f1f9b68f7

SHA512
ddd3e5d010b8694569705b77455bfb524445d4e376ba01fe6cac3e9d7d79075e367c21c81a4fdb97413836cb1f60b54bca10e6fee478cee12c3c6610c39c0141

Download Submit
memory/2112-0-0x000007FEF5F13000-0x000007FEF5F14000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x0000000000070000-0x0000000000086000-memory.dmp

Filesize
88KB

Download
memory/2112-2-0x000007FEF5F10000-0x000007FEF68FC000-memory.dmp

Filesize
9.9MB

Download
memory/2112-3-0x000007FEF5F10000-0x000007FEF68FC000-memory.dmp

Filesize
9.9MB

Download
memory/2112-12-0x000007FEF5F10000-0x000007FEF68FC000-memory.dmp

Filesize
9.9MB

Download
memory/2800-17-0x0000000000940000-0x0000000000956000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads