asyncrat | 37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58

Reason

Machine shutdown

General

Target

37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe
Size

2.1MB
MD5

d9d0ba1c1cc0dd9243f36fba8b1147ad
SHA1

eae15f17ee26ede826b934733e16762cd61c89fa
SHA256

37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58
SHA512

304503d20998426c25f8f12ff9907831e0184b5ac911a0ce45addec385cac82dc070a56ad8630b404a41023fb56140dda9498d8f1a659a77df2b944ebb6da6b9
SSDEEP

6144:2TrjyPf1/pNLbtbTvspnI5p3YCmMuHrXOrfE8HiTAnnQUoJwS4LY5qhR:2TWBnjspnIb//XT7EAQPn4LJD

Score

10^/10

asyncrat 2money discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

2MONEY

C2

twart.myfirewall.org:14143

Mutex

FEjYSsXzhpZixwA

Attributes

delay
20
install
true
install_file
svchost.exe
install_folder
%Temp%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Executes dropped EXE 1 IoCs

pid	Process
232	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.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

evasion

pid	Process
3624	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
3420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe
4660	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4660	AddInProcess32.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4936 wrote to memory of 4660	4936	37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe	87
PID 4660 wrote to memory of 4460	4660	AddInProcess32.exe	92
PID 4660 wrote to memory of 4460	4660	AddInProcess32.exe	92
PID 4660 wrote to memory of 4460	4660	AddInProcess32.exe	92
PID 4660 wrote to memory of 220	4660	AddInProcess32.exe	94
PID 4660 wrote to memory of 220	4660	AddInProcess32.exe	94
PID 4660 wrote to memory of 220	4660	AddInProcess32.exe	94
PID 4460 wrote to memory of 3420	4460	cmd.exe	96
PID 4460 wrote to memory of 3420	4460	cmd.exe	96
PID 4460 wrote to memory of 3420	4460	cmd.exe	96
PID 220 wrote to memory of 3624	220	cmd.exe	97
PID 220 wrote to memory of 3624	220	cmd.exe	97
PID 220 wrote to memory of 3624	220	cmd.exe	97
PID 220 wrote to memory of 232	220	cmd.exe	98
PID 220 wrote to memory of 232	220	cmd.exe	98
PID 220 wrote to memory of 232	220	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe
"C:\Users\Admin\AppData\Local\Temp\37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4660
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4460
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3420
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDA52.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:220
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3624
  - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:232

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 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\svchost.exe

Filesize
42KB

MD5
9827ff3cdf4b83f9c86354606736ca9c

SHA1
e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

SHA256
c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

SHA512
8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDA52.tmp.bat

Filesize
154B

MD5
02b55776fa288c73e3ef7673d939034a

SHA1
032de46e89b9b65c91aa734cad9885de8ae8bf2c

SHA256
faadb1aeb72db14fc2845d24a80dd44178c698434fafe185d24b31d5956e5c56

SHA512
8d8b166dc8820be20371f14b09e3187efb07182cf01ed9bb2296f32faa7c6f11662edb86d90d8937d7dc012c0c193deb8398d004cf25ee9177e40a50e8ecb7a4

Download Submit
memory/232-22-0x00000000055B0000-0x0000000005606000-memory.dmp

Filesize
344KB

Download
memory/232-21-0x0000000005520000-0x000000000554A000-memory.dmp

Filesize
168KB

Download
memory/232-20-0x0000000000840000-0x000000000084C000-memory.dmp

Filesize
48KB

Download
memory/4660-8-0x00000000752B0000-0x0000000075A60000-memory.dmp

Filesize
7.7MB

Download
memory/4660-6-0x00000000752BE000-0x00000000752BF000-memory.dmp

Filesize
4KB

Download
memory/4660-9-0x0000000005020000-0x0000000005086000-memory.dmp

Filesize
408KB

Download
memory/4660-10-0x0000000005470000-0x000000000550C000-memory.dmp

Filesize
624KB

Download
memory/4660-15-0x00000000752B0000-0x0000000075A60000-memory.dmp

Filesize
7.7MB

Download
memory/4660-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4936-7-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

Filesize
10.8MB

Download
memory/4936-0-0x00007FFABBF33000-0x00007FFABBF35000-memory.dmp

Filesize
8KB

Download
memory/4936-4-0x000001FA46CB0000-0x000001FA46D16000-memory.dmp

Filesize
408KB

Download
memory/4936-3-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

Filesize
10.8MB

Download
memory/4936-2-0x000001FA46C40000-0x000001FA46C46000-memory.dmp

Filesize
24KB

Download
memory/4936-1-0x000001FA46890000-0x000001FA4689C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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