asyncrat | 614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370

General

Target
614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
Size 45KB
Sample260531-tkc9gaev4k
SHA256 614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370
MD5 c2a2ba8ca7a6702346412c5492df7c5a
SHA1 1db498848c98517c090c7a66e56cabc454636fd8
SHA512 1cc43fbbad5504d7b6a53997d123cdbb6acd366ca60721894e4b42a85b27608d139e90e5a0b39ddae582a006120d27d2e39e01360760875c18282fb2dec679cb
SSDEEP 768:puTO9TgQsFcZWURDOjmo2qwrzjHynaKPIssjbXgX3iO6lrvFlxkxthBDZ7x:puTO9TgQCv2bnZscbwXSxlLFfgtfd7x
TLSH
T196232B003BE9C12BF2BE4F789DF26205467AF5632603D58E1CC452DB5613BC68A52AFD
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

sexhiihi.blog:443
sexhiihi.blog:80
sexhiihi.blog:7797
sexhiihi.blog:8707
sexhiihi.blog:6620
www.sexhiihi.blog:443
www.sexhiihi.blog:80
www.sexhiihi.blog:7797
www.sexhiihi.blog:8707
www.sexhiihi.blog:6620
conficker.sexhiihi.blog:443
conficker.sexhiihi.blog:80
conficker.sexhiihi.blog:7797
conficker.sexhiihi.blog:8707
conficker.sexhiihi.blog:6620
invasive.sexhiihi.blog:443
invasive.sexhiihi.blog:80
invasive.sexhiihi.blog:7797
invasive.sexhiihi.blog:8707
invasive.sexhiihi.blog:6620

Mutex

2PTwkD70Gw7l

Attributes

delay
0
install
true
install_file
8il6mn9.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/0x001b00000002b422-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5596	8il6mn9.exe
5788	8il6mn9.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	8il6mn9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8il6mn9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3696	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
4984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
Token: SeDebugPrivilege	5596	8il6mn9.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 3584	2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe	80
PID 2144 wrote to memory of 2892	2144	614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe	82
PID 3584 wrote to memory of 4984	3584	cmd.exe	84
PID 2892 wrote to memory of 3696	2892	cmd.exe	85
PID 2892 wrote to memory of 5788	2892	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe
"C:\Users\Admin\AppData\Local\Temp\614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8il6mn9" /tr '"C:\Users\Admin\AppData\Roaming\8il6mn9.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3584
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "8il6mn9" /tr '"C:\Users\Admin\AppData\Roaming\8il6mn9.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4984
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5DBB.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3696
- - C:\Users\Admin\AppData\Roaming\8il6mn9.exe
    "C:\Users\Admin\AppData\Roaming\8il6mn9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5788

C:\Users\Admin\AppData\Roaming\8il6mn9.exe
"C:\Users\Admin\AppData\Roaming\8il6mn9.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5596

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

tmp5DBB.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5DBB.tmp.bat
Size 151B
SHA256 825161fae10217d72f6bd85aea4f90c93c435b38139e0fa091ae6804b6bfc3b2
MD5 cfd673fa528fc4b34f90a31143701b3d
SHA1 d4dd7ba88de40ac5af6f7311fbba6fdbb7f48cc0
SHA512 a43c6f2b654a6900517c31a81f7740edfdadd8c9c80bf9ff8edd1ca1d227f209eca63f0b8e4fab7ceca743a52a2778419b22bdaed2fbdc0a4016725e6f3dcf45
TLSH
T1F8C02B4252C5EA1F3905542302FED99C91776C1E3F40BF00C748416E97C048CF0ED345
MD5 SHA1 SHA512 TLSH

Submit Download

8il6mn9.exe

Path C:\Users\Admin\AppData\Roaming\8il6mn9.exe
Size 45KB
SHA256 614eeaa1e28e3423655f08fa951d2fd626ceb734e34f225d1fceac1022a18370
MD5 c2a2ba8ca7a6702346412c5492df7c5a
SHA1 1db498848c98517c090c7a66e56cabc454636fd8
SHA512 1cc43fbbad5504d7b6a53997d123cdbb6acd366ca60721894e4b42a85b27608d139e90e5a0b39ddae582a006120d27d2e39e01360760875c18282fb2dec679cb
SSDEEP 768:puTO9TgQsFcZWURDOjmo2qwrzjHynaKPIssjbXgX3iO6lrvFlxkxthBDZ7x:puTO9TgQCv2bnZscbwXSxlLFfgtfd7x
TLSH
T196232B003BE9C12BF2BE4F789DF26205467AF5632603D58E1CC452DB5613BC68A52AFD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2144-0-0x0000000000240000-0x0000000000252000-memory.dmp

Download

memory/2144-1-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Download

memory/2144-2-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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