asyncrat | 37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 05:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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

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
2912	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31

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	schtasks.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2860	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
2064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2972	CasPol.exe
2972	CasPol.exe
2972	CasPol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	CasPol.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2972	2752	ABA NEW ORDER No.2400228341.pdf.exe	31
PID 2752 wrote to memory of 2884	2752	ABA NEW ORDER No.2400228341.pdf.exe	32
PID 2752 wrote to memory of 2884	2752	ABA NEW ORDER No.2400228341.pdf.exe	32
PID 2752 wrote to memory of 2884	2752	ABA NEW ORDER No.2400228341.pdf.exe	32
PID 2972 wrote to memory of 2196	2972	CasPol.exe	35
PID 2972 wrote to memory of 2196	2972	CasPol.exe	35
PID 2972 wrote to memory of 2196	2972	CasPol.exe	35
PID 2972 wrote to memory of 2196	2972	CasPol.exe	35
PID 2972 wrote to memory of 2276	2972	CasPol.exe	37
PID 2972 wrote to memory of 2276	2972	CasPol.exe	37
PID 2972 wrote to memory of 2276	2972	CasPol.exe	37
PID 2972 wrote to memory of 2276	2972	CasPol.exe	37
PID 2196 wrote to memory of 2064	2196	cmd.exe	39
PID 2196 wrote to memory of 2064	2196	cmd.exe	39
PID 2196 wrote to memory of 2064	2196	cmd.exe	39
PID 2196 wrote to memory of 2064	2196	cmd.exe	39
PID 2276 wrote to memory of 2860	2276	cmd.exe	40
PID 2276 wrote to memory of 2860	2276	cmd.exe	40
PID 2276 wrote to memory of 2860	2276	cmd.exe	40
PID 2276 wrote to memory of 2860	2276	cmd.exe	40
PID 2276 wrote to memory of 2912	2276	cmd.exe	41
PID 2276 wrote to memory of 2912	2276	cmd.exe	41
PID 2276 wrote to memory of 2912	2276	cmd.exe	41
PID 2276 wrote to memory of 2912	2276	cmd.exe	41

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:2752
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2972
- - 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:2196
  - - 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:2064
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpCBA8.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2276
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2860
  - - 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:2912
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2752 -s 616
  2⤵
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCBA8.tmp.bat

Filesize
154B

MD5
0a35080f580dea2a9326597eba8c95ff

SHA1
38d234f9b53785fd17980a6345b5b6c81ef84d7c

SHA256
5d50d626f321788d6572fd493c6a5f6e321929f710e07afa2f334dbaac3d2f6b

SHA512
f59efe291ac8845b214e1d96ed2c6f06f1c552196128820c17e493de4655b1f19bffd1f176ab1ab29ded29c6a72dcb24add8a1b8dff9d17e490e6fd2cc28ab15

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
105KB

MD5
ac93f60717f1fee8c678e624f54852ee

SHA1
d9c9828396d19a7f2920af68a4692409f16beaa9

SHA256
1fa79bf14d80519f7965a44dcc1f69ec1d24e83eea2927b474c3545e65062f24

SHA512
9ff7dfe9c8bc2ae775a97227990f332d8b799fbb4235eea7c73756a5359841d355805d1b624b40fe8f7e864c997a604d3c10ad1fa1182deb5842ab77aad9b1b7

Download Submit
memory/2752-20-0x000007FEF5433000-0x000007FEF5434000-memory.dmp

Filesize
4KB

Download
memory/2752-1-0x0000000000300000-0x000000000030C000-memory.dmp

Filesize
48KB

Download
memory/2752-2-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/2752-3-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

Filesize
9.9MB

Download
memory/2752-4-0x0000000000310000-0x0000000000376000-memory.dmp

Filesize
408KB

Download
memory/2752-0-0x000007FEF5433000-0x000007FEF5434000-memory.dmp

Filesize
4KB

Download
memory/2752-21-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

Filesize
9.9MB

Download
memory/2912-36-0x0000000001070000-0x000000000108C000-memory.dmp

Filesize
112KB

Download
memory/2972-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-19-0x000000007433E000-0x000000007433F000-memory.dmp

Filesize
4KB

Download
memory/2972-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-22-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2972-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2972-31-0x0000000074330000-0x0000000074A1E000-memory.dmp

Filesize
6.9MB

Download
memory/2972-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download