asyncrat | f079245e344d5949ad5ea9de866853a65460834f7d26980346ceafe8b4e6b5bb

General

Target

tryagainplease.exe
Size

47KB
MD5

be8251a986712feb5dfa8ce58aefd8ba
SHA1

4f6397e432799421ae91000bf01ef16b24e8ccf9
SHA256

f079245e344d5949ad5ea9de866853a65460834f7d26980346ceafe8b4e6b5bb
SHA512

8169b0875ad4813107ccdb75b1fa4facba0c46a426325ee67cf84d32d4ed85d1ab582ee3e3bc5a297208cf076d88ca774c946e3e3c3e23940a01514098f5859f
SSDEEP

768:8uQKNTREhzxrWUXrm5mo2q7+XhN6DuP1DgPIdKol0bdyMt7raUVY4Klp7LBDZkx:8uQKNTR+W24DuPrdKoSbdPpraEYTJdkx

Score

10^/10

asyncrat default 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

127.0.0.1:23198

benefits-required.gl.at.ply.gg:6606

benefits-required.gl.at.ply.gg:7707

benefits-required.gl.at.ply.gg:8808

benefits-required.gl.at.ply.gg:23198

Mutex

GLldzQVwvajy

Attributes

delay
3
install
true
install_file
roar.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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000023cde-12.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	tryagainplease.exe

Executes dropped EXE 1 IoCs

pid	Process
4068	roar.exe

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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	roar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tryagainplease.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4784	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
4780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe
5072	tryagainplease.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	tryagainplease.exe
Token: SeDebugPrivilege	4068	roar.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 1552	5072	tryagainplease.exe	85
PID 5072 wrote to memory of 1552	5072	tryagainplease.exe	85
PID 5072 wrote to memory of 1552	5072	tryagainplease.exe	85
PID 5072 wrote to memory of 4884	5072	tryagainplease.exe	87
PID 5072 wrote to memory of 4884	5072	tryagainplease.exe	87
PID 5072 wrote to memory of 4884	5072	tryagainplease.exe	87
PID 4884 wrote to memory of 4784	4884	cmd.exe	90
PID 4884 wrote to memory of 4784	4884	cmd.exe	90
PID 4884 wrote to memory of 4784	4884	cmd.exe	90
PID 1552 wrote to memory of 4780	1552	cmd.exe	89
PID 1552 wrote to memory of 4780	1552	cmd.exe	89
PID 1552 wrote to memory of 4780	1552	cmd.exe	89
PID 4884 wrote to memory of 4068	4884	cmd.exe	91
PID 4884 wrote to memory of 4068	4884	cmd.exe	91
PID 4884 wrote to memory of 4068	4884	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\tryagainplease.exe
"C:\Users\Admin\AppData\Local\Temp\tryagainplease.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1552
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4780
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBC4B.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4784
- - C:\Users\Admin\AppData\Roaming\roar.exe
    "C:\Users\Admin\AppData\Roaming\roar.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4068

Network

MITRE ATT&CK Enterprise v15

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

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

C:\Users\Admin\AppData\Local\Temp\tmpBC4B.tmp.bat

Filesize
148B

MD5
0625c0e29c38c315e97beb069f7039d5

SHA1
6f1cbc132bad528cc395175d1d254262593c6871

SHA256
c902c05daef8ff4fc41a2c7381506f80e9aa8a6599b95f8252b2d637c278928c

SHA512
f53d2adf702c6fd1d7153ab2a87b370d6c49f1d6e0248853dd6294fda57c1ad28a246d04e27dc84cb02d936a4967c8197a38dbf881f971c17205fd4555ddfe8b

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

Filesize
47KB

MD5
be8251a986712feb5dfa8ce58aefd8ba

SHA1
4f6397e432799421ae91000bf01ef16b24e8ccf9

SHA256
f079245e344d5949ad5ea9de866853a65460834f7d26980346ceafe8b4e6b5bb

SHA512
8169b0875ad4813107ccdb75b1fa4facba0c46a426325ee67cf84d32d4ed85d1ab582ee3e3bc5a297208cf076d88ca774c946e3e3c3e23940a01514098f5859f

Download Submit
memory/4068-14-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/4068-17-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/5072-0-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/5072-1-0x0000000000010000-0x0000000000022000-memory.dmp

Filesize
72KB

Download
memory/5072-2-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-3-0x00000000049D0000-0x0000000004A36000-memory.dmp

Filesize
408KB

Download
memory/5072-4-0x0000000004E90000-0x0000000004F2C000-memory.dmp

Filesize
624KB

Download
memory/5072-9-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads