asyncrat | e8c8239e1c24546bdc63585199795cd83c07a7a4f00a9cf1bc705035198d2934

General

Target

ABA NEW ORDER No.2400228341.pdf.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
4616	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1584 set thread context of 5012	1584	ABA NEW ORDER No.2400228341.pdf.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	regsvcs.exe
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1904	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
896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe
5012	regsvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	regsvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 1584 wrote to memory of 5012	1584	ABA NEW ORDER No.2400228341.pdf.exe	87
PID 5012 wrote to memory of 4920	5012	regsvcs.exe	92
PID 5012 wrote to memory of 4920	5012	regsvcs.exe	92
PID 5012 wrote to memory of 4920	5012	regsvcs.exe	92
PID 5012 wrote to memory of 2284	5012	regsvcs.exe	94
PID 5012 wrote to memory of 2284	5012	regsvcs.exe	94
PID 5012 wrote to memory of 2284	5012	regsvcs.exe	94
PID 2284 wrote to memory of 1904	2284	cmd.exe	96
PID 2284 wrote to memory of 1904	2284	cmd.exe	96
PID 2284 wrote to memory of 1904	2284	cmd.exe	96
PID 4920 wrote to memory of 896	4920	cmd.exe	97
PID 4920 wrote to memory of 896	4920	cmd.exe	97
PID 4920 wrote to memory of 896	4920	cmd.exe	97
PID 2284 wrote to memory of 4616	2284	cmd.exe	98
PID 2284 wrote to memory of 4616	2284	cmd.exe	98
PID 2284 wrote to memory of 4616	2284	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\ABA NEW ORDER No.2400228341.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\ABA NEW ORDER No.2400228341.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5012
- - 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:4920
  - - 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:896
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBE9D.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2284
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1904
  - - 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:4616

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
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBE9D.tmp.bat

Filesize
154B

MD5
6a6277f1945e5975d7b3aec95030e7b8

SHA1
b317d45853aa525047288cbc891cc57ff7f983d4

SHA256
21ff8850ca079d128c93dc44833a792c5aba33dea9f45d4adfd92c538b7ea6d7

SHA512
6c5a707da67282aca04c96cba419f5e26349d71b937732dd69a1b4ed9fb07af7e9a611dcb66378840a08ddb8fa4470091800fef18688f1321b5c720545ea1db8

Download Submit
memory/1584-4-0x000001F543D70000-0x000001F543DD6000-memory.dmp

Filesize
408KB

Download
memory/1584-2-0x000001F543D20000-0x000001F543D26000-memory.dmp

Filesize
24KB

Download
memory/1584-0-0x000001F543980000-0x000001F54398C000-memory.dmp

Filesize
48KB

Download
memory/1584-3-0x00007FF9837D0000-0x00007FF984291000-memory.dmp

Filesize
10.8MB

Download
memory/1584-7-0x00007FF9837D0000-0x00007FF984291000-memory.dmp

Filesize
10.8MB

Download
memory/1584-1-0x00007FF9837D3000-0x00007FF9837D5000-memory.dmp

Filesize
8KB

Download
memory/4616-22-0x0000000005340000-0x0000000005361000-memory.dmp

Filesize
132KB

Download
memory/4616-20-0x0000000000680000-0x000000000068E000-memory.dmp

Filesize
56KB

Download
memory/4616-21-0x0000000005370000-0x00000000053AC000-memory.dmp

Filesize
240KB

Download
memory/5012-6-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/5012-16-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/5012-10-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/5012-9-0x0000000005370000-0x00000000053D6000-memory.dmp

Filesize
408KB

Download
memory/5012-8-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/5012-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads