asyncrat | e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e

General

Target

e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe
Size

45KB
MD5

d713ae5b9cff7387e5a9363046db5caa
SHA1

70b052a2e2994cb8579e75d97607c2ff7a1095f4
SHA256

e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e
SHA512

b4c9f1b780e39224928f023b80d03a117d6e19670b3615fad4d9d7269d9b1397ed15e54c437a0b203b436869350fa59577482f05bed9274677733aa690463be7
SSDEEP

768:yuETKT0k3qXWUrV6e1mo2qyI3XqJthIf33OPI8zjbugXvipn5Wz8e/zX5iBDZqx:yuETKT0cE2/AXw2v383bRXKpn5WVcdqx

Score

10^/10

asyncrat giampiero discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

giampiero

C2

194.55.186.129:5000

Mutex

NBzTELYY8p2o

Attributes

delay
3
install
true
install_file
$77svchost.exe
install_folder
%AppData%

aes.plain

Signatures

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/0x0009000000012281-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2844	$77svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	cmd.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	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$77svchost.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2948	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
2692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe
3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe
3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe
Token: SeDebugPrivilege	2844	$77svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2672	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	31
PID 3056 wrote to memory of 2672	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	31
PID 3056 wrote to memory of 2672	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	31
PID 3056 wrote to memory of 2672	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	31
PID 3056 wrote to memory of 2136	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	33
PID 3056 wrote to memory of 2136	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	33
PID 3056 wrote to memory of 2136	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	33
PID 3056 wrote to memory of 2136	3056	e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe	33
PID 2672 wrote to memory of 2692	2672	cmd.exe	35
PID 2672 wrote to memory of 2692	2672	cmd.exe	35
PID 2672 wrote to memory of 2692	2672	cmd.exe	35
PID 2672 wrote to memory of 2692	2672	cmd.exe	35
PID 2136 wrote to memory of 2948	2136	cmd.exe	36
PID 2136 wrote to memory of 2948	2136	cmd.exe	36
PID 2136 wrote to memory of 2948	2136	cmd.exe	36
PID 2136 wrote to memory of 2948	2136	cmd.exe	36
PID 2136 wrote to memory of 2844	2136	cmd.exe	37
PID 2136 wrote to memory of 2844	2136	cmd.exe	37
PID 2136 wrote to memory of 2844	2136	cmd.exe	37
PID 2136 wrote to memory of 2844	2136	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe
"C:\Users\Admin\AppData\Local\Temp\e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "$77svchost" /tr '"C:\Users\Admin\AppData\Roaming\$77svchost.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "$77svchost" /tr '"C:\Users\Admin\AppData\Roaming\$77svchost.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2692
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE1D7.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2948
- - C:\Users\Admin\AppData\Roaming\$77svchost.exe
    "C:\Users\Admin\AppData\Roaming\$77svchost.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2844

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

System Information Discovery

1

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\tmpE1D7.tmp.bat

Filesize
154B

MD5
40cea7d2d59015adf712dc3c815e7afd

SHA1
7bfddd883e385ed4b09b7db256db5b29f5f242e0

SHA256
40cec063b4436e481c3ad6952e09de070f2f8a5e77dffad0918f16d4b774e0d7

SHA512
34e65233a19fc400153a4dc892253bb6fa615f3adbb76d9cef83fd34e5fef7eb9a7cc12d103ebf7aa30e108e8bb6e77db6477c12dff9aedac1eb4c4ebd2be0ca

Download Submit
\Users\Admin\AppData\Roaming\$77svchost.exe

Filesize
45KB

MD5
d713ae5b9cff7387e5a9363046db5caa

SHA1
70b052a2e2994cb8579e75d97607c2ff7a1095f4

SHA256
e24dd26925db61391a279370f6ee22e4d35ea0a13ca88ae7dae5a8def177832e

SHA512
b4c9f1b780e39224928f023b80d03a117d6e19670b3615fad4d9d7269d9b1397ed15e54c437a0b203b436869350fa59577482f05bed9274677733aa690463be7

Download Submit
memory/2844-16-0x0000000001010000-0x0000000001022000-memory.dmp

Filesize
72KB

Download
memory/3056-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x0000000001030000-0x0000000001042000-memory.dmp

Filesize
72KB

Download
memory/3056-2-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-11-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads