asyncrat | 1ee1af228d0cfcf2beae5a2df53a291d24fb6213c5e453cfb09c155b20a7a965

General

Target

Infected.exe
Size

63KB
MD5

abcbbfd4f4cdcef98962ad976802fb69
SHA1

ecce5776a92707e00b28441975e73a715f9e2185
SHA256

1ee1af228d0cfcf2beae5a2df53a291d24fb6213c5e453cfb09c155b20a7a965
SHA512

e38348d3f6983e02378dd4649630fd0a39ad6428bc82aa6f2738f1ec794b9b48db7457b3009f7f65e49fc5d994dcde6105fdf72bd572086d8017558aab541100
SSDEEP

768:RdGnVhwdjndk78TQC8A+XiuazcBRL5JTk1+T4KSBGHmDbD/ph0oXQxa/qSuAdpqM:mnSdsNdSJYUbdh9QxaFuAdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

mbaper-28496.portmap.host:2420

mbaper-28496.portmap.host:28833

Attributes

delay
1
install
true
install_file
Google.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
behavioral1/files/0x000b000000012029-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2620	Google.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
2700	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
2644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2192	Infected.exe
2192	Infected.exe
2192	Infected.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	Infected.exe
Token: SeDebugPrivilege	2620	Google.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2896	2192	Infected.exe	30
PID 2192 wrote to memory of 2896	2192	Infected.exe	30
PID 2192 wrote to memory of 2896	2192	Infected.exe	30
PID 2192 wrote to memory of 2616	2192	Infected.exe	32
PID 2192 wrote to memory of 2616	2192	Infected.exe	32
PID 2192 wrote to memory of 2616	2192	Infected.exe	32
PID 2616 wrote to memory of 2700	2616	cmd.exe	34
PID 2616 wrote to memory of 2700	2616	cmd.exe	34
PID 2616 wrote to memory of 2700	2616	cmd.exe	34
PID 2896 wrote to memory of 2644	2896	cmd.exe	35
PID 2896 wrote to memory of 2644	2896	cmd.exe	35
PID 2896 wrote to memory of 2644	2896	cmd.exe	35
PID 2616 wrote to memory of 2620	2616	cmd.exe	36
PID 2616 wrote to memory of 2620	2616	cmd.exe	36
PID 2616 wrote to memory of 2620	2616	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\Infected.exe
"C:\Users\Admin\AppData\Local\Temp\Infected.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Google" /tr '"C:\Users\Admin\AppData\Roaming\Google.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Google" /tr '"C:\Users\Admin\AppData\Roaming\Google.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2644
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp6AC4.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2616
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2700
- - C:\Users\Admin\AppData\Roaming\Google.exe
    "C:\Users\Admin\AppData\Roaming\Google.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2620

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\tmp6AC4.tmp.bat

Filesize
150B

MD5
8927ebf245cdddf970a5b765f23f564f

SHA1
ad32a9ec31de971e9bfe1a175b55da55212017a0

SHA256
608114dc282102c1afb6461e920971d11ddd97d0dc9defa07d51c87910c7a6b6

SHA512
25d9e8fa9606a553f1fd1b275e1a701a3a5adcaba765160836c4f0f7f865adb1d93abae02fcf6731ccb4e0401b3fb2fc8dcf239a3eb603232e8838b3360891dd

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

Filesize
63KB

MD5
abcbbfd4f4cdcef98962ad976802fb69

SHA1
ecce5776a92707e00b28441975e73a715f9e2185

SHA256
1ee1af228d0cfcf2beae5a2df53a291d24fb6213c5e453cfb09c155b20a7a965

SHA512
e38348d3f6983e02378dd4649630fd0a39ad6428bc82aa6f2738f1ec794b9b48db7457b3009f7f65e49fc5d994dcde6105fdf72bd572086d8017558aab541100

Download Submit
memory/2192-0-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/2192-2-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2192-3-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2192-13-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2620-17-0x00000000001A0000-0x00000000001B6000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads