asyncrat | 24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1

General

Target
24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
Size 45KB
Sample260531-th4nmsb18s
SHA256 24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1
MD5 3460d2a772505a03cec6d1668c562ccb
SHA1 c072c4097c55798963b30327df89a6de69f443ba
SHA512 3c6d0504a1fe716ab64da6eae618cac5baece2157cd10739f6fdd1a8548f22128cf5d8ea9ba5095fcc8396b7410e21341f3b3988441d358fff1d7cfd8dedefb0
SSDEEP 768:Qul+JTEs+EgWUKJTGmo2q9qCSwTMSPI5tjbIgX3iNOkUhFBL7W1ztN0nBDZTx:Qul+JTE9X29gG5lbfXSDUhrL7GtNudTx
TLSH
T1A3231A103BD8C12BF2BE4F7898F26146867AF6673603D58E2CC4419B5713BC696426FE
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

javhd.co.uk:443
javhd.co.uk:80
javhd.co.uk:7797
javhd.co.uk:8707
javhd.co.uk:6620
www.javhd.co.uk:443
www.javhd.co.uk:80
www.javhd.co.uk:7797
www.javhd.co.uk:8707
www.javhd.co.uk:6620
conti.javhd.co.uk:443
conti.javhd.co.uk:80
conti.javhd.co.uk:7797
conti.javhd.co.uk:8707
conti.javhd.co.uk:6620
ursnif.javhd.co.uk:443
ursnif.javhd.co.uk:80
ursnif.javhd.co.uk:7797
ursnif.javhd.co.uk:8707
ursnif.javhd.co.uk:6620
connect.javhd.co.uk:443
connect.javhd.co.uk:80
connect.javhd.co.uk:7797
connect.javhd.co.uk:8707
connect.javhd.co.uk:6620
malware.javhd.co.uk:443
malware.javhd.co.uk:80
malware.javhd.co.uk:7797
malware.javhd.co.uk:8707
malware.javhd.co.uk:6620

Mutex

np6q9IftsLVl

Attributes

delay
0
install
true
install_file
1jgyx9.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/0x001800000002b7a1-9.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3248	1jgyx9.exe
4020	1jgyx9.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 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	1jgyx9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.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	1jgyx9.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5720	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
4572	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
Token: SeDebugPrivilege	3248	1jgyx9.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 6140 wrote to memory of 2088	6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe	80
PID 6140 wrote to memory of 1060	6140	24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe	82
PID 2088 wrote to memory of 4572	2088	cmd.exe	84
PID 1060 wrote to memory of 5720	1060	cmd.exe	85
PID 1060 wrote to memory of 4020	1060	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe
"C:\Users\Admin\AppData\Local\Temp\24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "1jgyx9" /tr '"C:\Users\Admin\AppData\Roaming\1jgyx9.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "1jgyx9" /tr '"C:\Users\Admin\AppData\Roaming\1jgyx9.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4572
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5752.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5720
- - C:\Users\Admin\AppData\Roaming\1jgyx9.exe
    "C:\Users\Admin\AppData\Roaming\1jgyx9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4020

C:\Users\Admin\AppData\Roaming\1jgyx9.exe
"C:\Users\Admin\AppData\Roaming\1jgyx9.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3248

Network

MITRE ATT&CK Enterprise v16

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

tmp5752.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5752.tmp.bat
Size 150B
SHA256 ddb9e48ae7b4f3e1d70106ada6db136b173470f7bc256214ca784488e456d1eb
MD5 5cd2747af7c40c41c154e3e602e494f5
SHA1 4431cae321afda5e912aa9669f346962ef3ebd13
SHA512 408994a0fdc32af6370794e5703c2c1b87ca4a4d9980e1bdcf31ec6ceadbea6288f4d9224cc58e40458d57061d8678af640792fa938e5a6a90236f029f30dd99
TLSH
T131C08CC266C6AB0E2806686306BA9A9C92666C5A3E40AB40C748404A2680498E0A9282
MD5 SHA1 SHA512 TLSH

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1jgyx9.exe

Path C:\Users\Admin\AppData\Roaming\1jgyx9.exe
Size 45KB
SHA256 24b77926b4a0d5654d3a7105b65c3ddb2c523ab113185ef607bd16f165c0c5e1
MD5 3460d2a772505a03cec6d1668c562ccb
SHA1 c072c4097c55798963b30327df89a6de69f443ba
SHA512 3c6d0504a1fe716ab64da6eae618cac5baece2157cd10739f6fdd1a8548f22128cf5d8ea9ba5095fcc8396b7410e21341f3b3988441d358fff1d7cfd8dedefb0
SSDEEP 768:Qul+JTEs+EgWUKJTGmo2q9qCSwTMSPI5tjbIgX3iNOkUhFBL7W1ztN0nBDZTx:Qul+JTE9X29gG5lbfXSDUhrL7GtNudTx
TLSH
T1A3231A103BD8C12BF2BE4F7898F26146867AF6673603D58E2CC4419B5713BC696426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/6140-0-0x0000000000AE0000-0x0000000000AF2000-memory.dmp

Download

memory/6140-1-0x0000000005520000-0x0000000005530000-memory.dmp

Download

memory/6140-2-0x00000000055D0000-0x000000000566C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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