asyncrat | 50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812

General

Target
50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
Size 45KB
Sample260722-s6sqlsvsft
SHA256 50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812
MD5 ff1caef5331afb6205eec8f101fa4858
SHA1 261235606e0eea4d4bb1a4c03f049d3a243251c1
SHA512 075c5df9fbfb45004ab19fc2c9cb8ea49a7ff495e5ff6beb1041d04514fd23a7d48709a6a1251c0bab56b01a55b83309c676a41bee89635aaff34084ade239ca
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q97wz/y3qiPIfzjbWgX3i9MYTkerEUZrk+kFIEt/BDZ+:0uPrpT/qY2Y0hf3bJXS9MYQSEoXELd8x
TLSH
T13D232C003BE9C12BF1BE4F7899F261454A7AF6633A03D6491CC411DB5713FC69A426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

dagatructiep.sh:80
dagatructiep.sh:22
dagatructiep.sh:8080
dagatructiep.sh:8880
dagatructiep.sh:2052
dagatructiep.sh:2082
dagatructiep.sh:2086
dagatructiep.sh:2095
dagatructiep.sh:443
dagatructiep.sh:2053
dagatructiep.sh:2083
dagatructiep.sh:2087
dagatructiep.sh:2096
dagatructiep.sh:8443
www.dagatructiep.sh:80
www.dagatructiep.sh:22
www.dagatructiep.sh:8080
www.dagatructiep.sh:8880
www.dagatructiep.sh:2052
www.dagatructiep.sh:2082
www.dagatructiep.sh:2086
www.dagatructiep.sh:2095
www.dagatructiep.sh:443
www.dagatructiep.sh:2053
www.dagatructiep.sh:2083
www.dagatructiep.sh:2087
www.dagatructiep.sh:2096
www.dagatructiep.sh:8443
invasive.dagatructiep.sh:80
invasive.dagatructiep.sh:22
invasive.dagatructiep.sh:8080
invasive.dagatructiep.sh:8880
invasive.dagatructiep.sh:2052
invasive.dagatructiep.sh:2082
invasive.dagatructiep.sh:2086
invasive.dagatructiep.sh:2095
invasive.dagatructiep.sh:443
invasive.dagatructiep.sh:2053
invasive.dagatructiep.sh:2083
invasive.dagatructiep.sh:2087
invasive.dagatructiep.sh:2096
invasive.dagatructiep.sh:8443
azorult.dagatructiep.sh:80
azorult.dagatructiep.sh:22
azorult.dagatructiep.sh:8080
azorult.dagatructiep.sh:8880
azorult.dagatructiep.sh:2052
azorult.dagatructiep.sh:2082
azorult.dagatructiep.sh:2086
azorult.dagatructiep.sh:2095
azorult.dagatructiep.sh:443
azorult.dagatructiep.sh:2053
azorult.dagatructiep.sh:2083
azorult.dagatructiep.sh:2087
azorult.dagatructiep.sh:2096
azorult.dagatructiep.sh:8443

Mutex

pHN5eTjp4Xx1

Attributes

delay
0
install
true
install_file
va46qt0.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
behavioral1/files/0x0009000000024356-8.dat	family_asyncrat

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-1-5-21-876885714-46325919-1482798410-1000\Control Panel\International\Geo\Nation	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe

Executes dropped EXE 2 IoCs

pid	Process
1820	va46qt0.exe
2792	va46qt0.exe

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
3704	cmd.exe
4380	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	va46qt0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	va46qt0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
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	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3488	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
2488	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
Token: SeDebugPrivilege	1820	va46qt0.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 3704	1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe	88
PID 1064 wrote to memory of 4380	1064	50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe	90
PID 4380 wrote to memory of 3488	4380	cmd.exe	92
PID 3704 wrote to memory of 2488	3704	cmd.exe	93
PID 4380 wrote to memory of 2792	4380	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe
"C:\Users\Admin\AppData\Local\Temp\50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "va46qt0" /tr '"C:\Users\Admin\AppData\Roaming\va46qt0.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3704
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "va46qt0" /tr '"C:\Users\Admin\AppData\Roaming\va46qt0.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2488
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4D50.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4380
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3488
- - C:\Users\Admin\AppData\Roaming\va46qt0.exe
    "C:\Users\Admin\AppData\Roaming\va46qt0.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2792

C:\Users\Admin\AppData\Roaming\va46qt0.exe
"C:\Users\Admin\AppData\Roaming\va46qt0.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1820

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

2

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

tmp4D50.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4D50.tmp.bat
Size 151B
SHA256 09b937aafdf1a898fa6f1fba16bf0566eabdcf1110b65eae60b880adaa9171a0
MD5 751dd91018aa5904d689015137fd73e1
SHA1 8e7e4dfd804cc4c987dee47a7163def7e50fb569
SHA512 c81deda5241b270085a29a7a064c505cfd588b405e3a098825b89ed6cd6ed1719e7f6f8b501e002a6f490519b2398999b2c21091dff84d4ed6eae7f7621de119
TLSH
T1A5C02B42D5C5EA0E3806746302FBE4CF99726D1A3F40BB80C344805D5284448F4D9341
MD5 SHA1 SHA512 TLSH

Submit Download

va46qt0.exe

Path C:\Users\Admin\AppData\Roaming\va46qt0.exe
Size 45KB
SHA256 50180910ec3cde188ab36f55a8e271530f7778e0507c487ab02069ba6076b812
MD5 ff1caef5331afb6205eec8f101fa4858
SHA1 261235606e0eea4d4bb1a4c03f049d3a243251c1
SHA512 075c5df9fbfb45004ab19fc2c9cb8ea49a7ff495e5ff6beb1041d04514fd23a7d48709a6a1251c0bab56b01a55b83309c676a41bee89635aaff34084ade239ca
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q97wz/y3qiPIfzjbWgX3i9MYTkerEUZrk+kFIEt/BDZ+:0uPrpT/qY2Y0hf3bJXS9MYQSEoXELd8x
TLSH
T13D232C003BE9C12BF1BE4F7899F261454A7AF6633A03D6491CC411DB5713FC69A426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1064-0-0x0000000000E90000-0x0000000000EA2000-memory.dmp

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memory/1064-1-0x0000000005800000-0x0000000005810000-memory.dmp

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memory/1064-2-0x00000000058B0000-0x000000000594C000-memory.dmp

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memory/1820-10-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

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memory/1820-13-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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