asyncrat | 419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 21:46

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General

Target

419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
Size

556KB
MD5

632fcbfdd3e602712905071c5a178e6d
SHA1

350fd5a29c11bf2244f94465ed2e82ce71a72ca4
SHA256

419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f
SHA512

b0ea0cba1a9e6e5398e363d2558f0105288b48af2fa40678ce416bd07b2a021427c85af487734288f9e5a9185a1faeb3f2e67ae1a199e9686069333a07458ab4
SSDEEP

12288:ndBhrOiY7fNzGxb2w0T1Qhg8HM+M71ao7DVxZNywjzS:ndulzGow0ihhM71aYj3TS

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

ronymahmoud.casacam.net:6606

ronymahmoud.casacam.net:7707

ronymahmoud.casacam.net:8808

sk.servemp3.com:6606

sk.servemp3.com:7707

sk.servemp3.com:8808

Mutex

fpfvkdzpfziibqk

Attributes

delay
1
install
false
install_file
miccrosofte.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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4520	powershell.exe
3744	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5072 set thread context of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.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
1892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4520	powershell.exe
3744	powershell.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4520	powershell.exe
3744	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	3744	powershell.exe
Token: SeDebugPrivilege	2648	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 4520	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	91
PID 5072 wrote to memory of 4520	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	91
PID 5072 wrote to memory of 4520	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	91
PID 5072 wrote to memory of 3744	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	93
PID 5072 wrote to memory of 3744	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	93
PID 5072 wrote to memory of 3744	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	93
PID 5072 wrote to memory of 1892	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	95
PID 5072 wrote to memory of 1892	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	95
PID 5072 wrote to memory of 1892	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	95
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97
PID 5072 wrote to memory of 2648	5072	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	97

C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
"C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4520
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KkjEJBLkYcb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3744
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KkjEJBLkYcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9CB8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1892
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
ed98bfc6a38db60a8f22062b8537b175

SHA1
98e0993f183e6aeb76a584f43a507ee3f6a4981c

SHA256
3e5fa8f2293295ac48557a7da367dd0660a800dccefbc5bd771f7777502655b7

SHA512
e3679e2ba553882db846f1ccc4643e7073ef05585f8bc7013523939a2460cfdf5cbb9483e5c638ce5917ffc471a42a374c73025455f921db80ccf7e573da1185

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zdhmjv5u.fh5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9CB8.tmp

Filesize
1KB

MD5
9180a13435406f2c8ab48761af4b8d4f

SHA1
65527ddfd72edc6e4bff2a0c7916b01484d73d99

SHA256
55d71b2805eb506538049e29f4b0ed1e1a970afde86ff41971b902881503fb34

SHA512
9c43fdd860364346488a9782492c4a48dab55aa081120fb0e6cf8e1177c2cec24e3d2af607ccf7ef3340519eba32a2e1fc5e023462bfefa2c463079f4bc10178

Download Submit
memory/2648-47-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3744-72-0x0000000006E30000-0x0000000006E4E000-memory.dmp

Filesize
120KB

Download
memory/3744-81-0x0000000007D80000-0x0000000007D94000-memory.dmp

Filesize
80KB

Download
memory/3744-77-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

Filesize
40KB

Download
memory/3744-82-0x0000000007E80000-0x0000000007E9A000-memory.dmp

Filesize
104KB

Download
memory/3744-52-0x0000000006DF0000-0x0000000006E22000-memory.dmp

Filesize
200KB

Download
memory/3744-53-0x00000000755F0000-0x000000007563C000-memory.dmp

Filesize
304KB

Download
memory/3744-83-0x0000000007E60000-0x0000000007E68000-memory.dmp

Filesize
32KB

Download
memory/3744-36-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/3744-34-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/3744-90-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/3744-20-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/4520-74-0x0000000006FD0000-0x0000000007073000-memory.dmp

Filesize
652KB

Download
memory/4520-63-0x00000000755F0000-0x000000007563C000-memory.dmp

Filesize
304KB

Download
memory/4520-19-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/4520-18-0x00000000051C0000-0x00000000057E8000-memory.dmp

Filesize
6.2MB

Download
memory/4520-28-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/4520-17-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/4520-35-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/4520-16-0x0000000002690000-0x00000000026C6000-memory.dmp

Filesize
216KB

Download
memory/4520-27-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/4520-89-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/4520-80-0x00000000074F0000-0x00000000074FE000-memory.dmp

Filesize
56KB

Download
memory/4520-50-0x0000000005F90000-0x0000000005FAE000-memory.dmp

Filesize
120KB

Download
memory/4520-51-0x0000000005FE0000-0x000000000602C000-memory.dmp

Filesize
304KB

Download
memory/4520-79-0x00000000074C0000-0x00000000074D1000-memory.dmp

Filesize
68KB

Download
memory/4520-78-0x0000000007540000-0x00000000075D6000-memory.dmp

Filesize
600KB

Download
memory/4520-26-0x00000000050F0000-0x0000000005112000-memory.dmp

Filesize
136KB

Download
memory/4520-75-0x0000000007900000-0x0000000007F7A000-memory.dmp

Filesize
6.5MB

Download
memory/4520-76-0x00000000072C0000-0x00000000072DA000-memory.dmp

Filesize
104KB

Download
memory/5072-6-0x0000000005E60000-0x0000000005E70000-memory.dmp

Filesize
64KB

Download
memory/5072-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/5072-7-0x0000000007090000-0x00000000073E4000-memory.dmp

Filesize
3.3MB

Download
memory/5072-9-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-10-0x00000000078C0000-0x0000000007914000-memory.dmp

Filesize
336KB

Download
memory/5072-49-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/5072-5-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/5072-4-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-3-0x00000000058C0000-0x0000000005952000-memory.dmp

Filesize
584KB

Download
memory/5072-2-0x0000000005E70000-0x0000000006414000-memory.dmp

Filesize
5.6MB

Download
memory/5072-11-0x0000000007780000-0x000000000781C000-memory.dmp

Filesize
624KB

Download
memory/5072-1-0x0000000000DC0000-0x0000000000E50000-memory.dmp

Filesize
576KB

Download