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/0x001c00000002aa77-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
3620	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
4016	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
3460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe
3012	Infected.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	Infected.exe
Token: SeDebugPrivilege	3620	Google.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 3540	3012	Infected.exe	77
PID 3012 wrote to memory of 3540	3012	Infected.exe	77
PID 3012 wrote to memory of 5052	3012	Infected.exe	78
PID 3012 wrote to memory of 5052	3012	Infected.exe	78
PID 5052 wrote to memory of 4016	5052	cmd.exe	81
PID 5052 wrote to memory of 4016	5052	cmd.exe	81
PID 3540 wrote to memory of 3460	3540	cmd.exe	82
PID 3540 wrote to memory of 3460	3540	cmd.exe	82
PID 5052 wrote to memory of 3620	5052	cmd.exe	83
PID 5052 wrote to memory of 3620	5052	cmd.exe	83

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:3012
- 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:3540
- - 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:3460
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9829.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4016
- - C:\Users\Admin\AppData\Roaming\Google.exe
    "C:\Users\Admin\AppData\Roaming\Google.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3620

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\tmp9829.tmp.bat

Filesize
150B

MD5
12068447029cf537ed25d663c22f59ca

SHA1
7e20670a12297514191c21ee4e4e62bb2c795b91

SHA256
9cd3388811ad9a48eb6d8a78edafb4f40ce7af69047dd9046cd51475c3482c84

SHA512
14af3d19e12ac156199a4be2ac7e3af421c1be8af526110f8df5d1e788ef6cb985053a6b45a4824e16d852a0f2ccd3ebf1a1f1db81c3109354e631580eb44d3e

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

Filesize
63KB

MD5
abcbbfd4f4cdcef98962ad976802fb69

SHA1
ecce5776a92707e00b28441975e73a715f9e2185

SHA256
1ee1af228d0cfcf2beae5a2df53a291d24fb6213c5e453cfb09c155b20a7a965

SHA512
e38348d3f6983e02378dd4649630fd0a39ad6428bc82aa6f2738f1ec794b9b48db7457b3009f7f65e49fc5d994dcde6105fdf72bd572086d8017558aab541100

Download Submit
memory/3012-0-0x00007FFDF3333000-0x00007FFDF3335000-memory.dmp

Filesize
8KB

Download
memory/3012-1-0x0000000000AF0000-0x0000000000B06000-memory.dmp

Filesize
88KB

Download
memory/3012-2-0x00007FFDF3330000-0x00007FFDF3DF2000-memory.dmp

Filesize
10.8MB

Download
memory/3012-3-0x00007FFDF3330000-0x00007FFDF3DF2000-memory.dmp

Filesize
10.8MB

Download
memory/3012-8-0x00007FFDF3330000-0x00007FFDF3DF2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads