asyncrat | 121c28f14f52d3bee83a8486993278f678c42b2ab023b739d597e27f77e50b1f

General

Target
alo789rachgia.exe
Size 79KB
Sample260910-xw2yraed28
SHA256 121c28f14f52d3bee83a8486993278f678c42b2ab023b739d597e27f77e50b1f
MD5 e707121ad7637b7fcb223dad76980221
SHA1 7ea1c1ae947de41b1f300119f6526b85e4ca9e51
SHA512 81631e4219aabee52ea41e013a512e1883e0a56612d1a8de31a846397c8d5fe07627f4130be1825822d3e19ee1f91163ed651040d6433ded19cd31fd7e099cb9
SSDEEP 1536:iuk6VThSV2Iuv1n1OmbBpSL6//R+odzFwevI9C0:iukeThSV2V1OmbBMEUoleJC0
TLSH
T187836C003BECC12BE27E1F785DF19645067BF5632A02D94A2DC45A8F1622FC999436FE
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

alo789rachgia.com:6606
alo789rachgia.com:7707
alo789rachgia.com:8808
alo789rachgia.com:80
alo789rachgia.com:443

Mutex

0yX01TBGUyjB

Attributes

delay
10
install
true
install_file
alo789rachgia.com.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/0x00090000000244b5-9.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-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation	alo789rachgia.exe

Executes dropped EXE 2 IoCs

pid	Process
1272	alo789rachgia.com.exe
2980	alo789rachgia.com.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
3104	cmd.exe
4440	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	alo789rachgia.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alo789rachgia.com.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alo789rachgia.com.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
452	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
2036	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe
2104	alo789rachgia.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	alo789rachgia.exe
Token: SeDebugPrivilege	1272	alo789rachgia.com.exe
Token: SeDebugPrivilege	1272	alo789rachgia.com.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 3104	2104	alo789rachgia.exe	88
PID 2104 wrote to memory of 4440	2104	alo789rachgia.exe	90
PID 4440 wrote to memory of 452	4440	cmd.exe	92
PID 3104 wrote to memory of 2036	3104	cmd.exe	93
PID 4440 wrote to memory of 2980	4440	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\alo789rachgia.exe
"C:\Users\Admin\AppData\Local\Temp\alo789rachgia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "alo789rachgia.com" /tr '"C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3104
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "alo789rachgia.com" /tr '"C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2036
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4438.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4440
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:452
- - C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe
    "C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2980

C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe
"C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1272

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

tmp4438.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4438.tmp.bat
Size 161B
SHA256 b91a99637b586733d71a2cdabb9665fa81411055938c8119baf7e771efe31c05
MD5 4042cd27282371163db7fb5072247f53
SHA1 22306474aaca1c02b79be80a3479802f78581d80
SHA512 49c4e34c49680241a67d9be2d1cb1717b4f4882c7ff76656ab11c92dd24b22b80f6198618893b427390f34cead45e7d7681a462a1a5f30294d6f80d06a11c4a8
TLSH
T1F7C08C82A1C9AA2E290528272ABB958C957279AA3E48AF74870485991680448E099389
MD5 SHA1 SHA512 TLSH

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alo789rachgia.com.exe

Path C:\Users\Admin\AppData\Roaming\alo789rachgia.com.exe
Size 79KB
SHA256 121c28f14f52d3bee83a8486993278f678c42b2ab023b739d597e27f77e50b1f
MD5 e707121ad7637b7fcb223dad76980221
SHA1 7ea1c1ae947de41b1f300119f6526b85e4ca9e51
SHA512 81631e4219aabee52ea41e013a512e1883e0a56612d1a8de31a846397c8d5fe07627f4130be1825822d3e19ee1f91163ed651040d6433ded19cd31fd7e099cb9
SSDEEP 1536:iuk6VThSV2Iuv1n1OmbBpSL6//R+odzFwevI9C0:iukeThSV2V1OmbBMEUoleJC0
TLSH
T187836C003BECC12BE27E1F785DF19645067BF5632A02D94A2DC45A8F1622FC999436FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2104-0-0x0000000000250000-0x000000000026A000-memory.dmp

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memory/2104-1-0x0000000004D50000-0x0000000004D60000-memory.dmp

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memory/2104-2-0x0000000004BE0000-0x0000000004C46000-memory.dmp

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memory/2104-3-0x0000000005080000-0x000000000511C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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