asyncrat | 21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 10:07

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General

Target
21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
Size 45KB
Sample260816-l5mpmscf33
SHA256 21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac
MD5 1073e6ce03fea1b1266c8fdbeca46939
SHA1 37dc40b9e33f5d4fd93cb31212b058869b332c2b
SHA512 059400add31621cffe30aa9678a932ee13a408f71f3cdf6fe3d41192a058f0e242c48dc83cdb8984c20e94b48accbff7fc6e98804962779e10294c73c2642c08
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1wpt0CCM+d4CvS8PIkDjbagX3i+ytJ0COZBDZUx:cuR0JTPjY2p/CFWBknbNXS5JTCdUx
TLSH
T132231B003BE9C12BF2BE4F7899F26145867AF6732A03D54D1C8451DB5613FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

zorvec.name:80
zorvec.name:22
zorvec.name:8080
zorvec.name:8880
zorvec.name:2052
zorvec.name:2082
zorvec.name:2086
zorvec.name:2095
zorvec.name:443
zorvec.name:2053
zorvec.name:2083
zorvec.name:2087
zorvec.name:2096
zorvec.name:8443
www.zorvec.name:80
www.zorvec.name:22
www.zorvec.name:8080
www.zorvec.name:8880
www.zorvec.name:2052
www.zorvec.name:2082
www.zorvec.name:2086
www.zorvec.name:2095
www.zorvec.name:443
www.zorvec.name:2053
www.zorvec.name:2083
www.zorvec.name:2087
www.zorvec.name:2096
www.zorvec.name:8443
cl0p.zorvec.name:80
cl0p.zorvec.name:22
cl0p.zorvec.name:8080
cl0p.zorvec.name:8880
cl0p.zorvec.name:2052
cl0p.zorvec.name:2082
cl0p.zorvec.name:2086
cl0p.zorvec.name:2095
cl0p.zorvec.name:443
cl0p.zorvec.name:2053
cl0p.zorvec.name:2083
cl0p.zorvec.name:2087
cl0p.zorvec.name:2096
cl0p.zorvec.name:8443
triton.zorvec.name:80
triton.zorvec.name:22
triton.zorvec.name:8080
triton.zorvec.name:8880
triton.zorvec.name:2052
triton.zorvec.name:2082
triton.zorvec.name:2086
triton.zorvec.name:2095
triton.zorvec.name:443
triton.zorvec.name:2053
triton.zorvec.name:2083
triton.zorvec.name:2087
triton.zorvec.name:2096
triton.zorvec.name:8443
ursnif.zorvec.name:80
ursnif.zorvec.name:22
ursnif.zorvec.name:8080
ursnif.zorvec.name:8880
ursnif.zorvec.name:2052
ursnif.zorvec.name:2082
ursnif.zorvec.name:2086
ursnif.zorvec.name:2095
ursnif.zorvec.name:443
ursnif.zorvec.name:2053
ursnif.zorvec.name:2083
ursnif.zorvec.name:2087
ursnif.zorvec.name:2096
ursnif.zorvec.name:8443

Mutex

9I7v4azJpp8C

Attributes

delay
0
install
true
install_file
nncc.exe
install_folder
%AppData%

aes.plain

Signatures

Family: 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
behavioral2/files/0x000e00000001c40b-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4888	nncc.exe
1120	nncc.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc	pid	Process
SSH destination	7	104.21.28.44:22	4888	nncc.exe
SSH destination	9	172.67.144.58:22		Process not Found

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3464	cmd.exe
4464	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nncc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nncc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4960	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
5496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
Token: SeDebugPrivilege	4888	nncc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 3464	4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe	89
PID 4776 wrote to memory of 4464	4776	21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe	91
PID 3464 wrote to memory of 5496	3464	cmd.exe	93
PID 4464 wrote to memory of 4960	4464	cmd.exe	94
PID 4464 wrote to memory of 1120	4464	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe
"C:\Users\Admin\AppData\Local\Temp\21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nncc" /tr '"C:\Users\Admin\AppData\Roaming\nncc.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "nncc" /tr '"C:\Users\Admin\AppData\Roaming\nncc.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5496
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D2E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4960
- - C:\Users\Admin\AppData\Roaming\nncc.exe
    "C:\Users\Admin\AppData\Roaming\nncc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1120

C:\Users\Admin\AppData\Roaming\nncc.exe
"C:\Users\Admin\AppData\Roaming\nncc.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4888

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp3D2E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3D2E.tmp.bat
Size 148B
SHA256 26d41d4bfb596bbfca4dcf1d306db92c57a51da585f0fe140ceb88e7fff1fbb1
MD5 bf1432345de2acf1c16f049f9ff97027
SHA1 82bb433e5af3947f5938ebafea5e4f1d81c660e8
SHA512 f3a946efa08734d9c4eaf8cc1e7ca31f9c192c68ef3573197833e75e99225b165aac78d1773e32caab05ab414431acb9931dae7e18c6ea6db2808b18aa20022e
TLSH
T17EC02B5255C6FB1F2C05141316FAD99CA1726D293F80BB00D708844D2681888F0D9341
MD5 SHA1 SHA512 TLSH

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nncc.exe

Path C:\Users\Admin\AppData\Roaming\nncc.exe
Size 45KB
SHA256 21565858464d34055555e92b4d8ab9f2151410464e22e604715c97f9d53ba7ac
MD5 1073e6ce03fea1b1266c8fdbeca46939
SHA1 37dc40b9e33f5d4fd93cb31212b058869b332c2b
SHA512 059400add31621cffe30aa9678a932ee13a408f71f3cdf6fe3d41192a058f0e242c48dc83cdb8984c20e94b48accbff7fc6e98804962779e10294c73c2642c08
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1wpt0CCM+d4CvS8PIkDjbagX3i+ytJ0COZBDZUx:cuR0JTPjY2p/CFWBknbNXS5JTCdUx
TLSH
T132231B003BE9C12BF2BE4F7899F26145867AF6732A03D54D1C8451DB5613FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4776-0-0x0000000074D62000-0x0000000074D63000-memory.dmp

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memory/4776-1-0x0000000000D20000-0x0000000000D32000-memory.dmp

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memory/4776-2-0x0000000074D50000-0x000000007550C000-memory.dmp

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memory/4776-3-0x00000000057B0000-0x000000000584C000-memory.dmp

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memory/4776-8-0x0000000074D50000-0x000000007550C000-memory.dmp

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memory/4888-12-0x0000000074B80000-0x000000007533C000-memory.dmp

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memory/4888-14-0x0000000074B80000-0x000000007533C000-memory.dmp

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