asyncrat | 192fa183bca99cd364f6f65f7f93f18d2c350168be7d66458048af5b232e4223

Analysis

max time kernel
136s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 14:24

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General

Target

QUOTATION No.2400228341.pdf.exe
Size

608KB
MD5

690c1b65a6267d6d0b201ba46089aabc
SHA1

9eb6859bae82bcf8b9df7cf4fc061cd9155fdc39
SHA256

244f3a2fad1afa232909355901f33cca18ea95444c5d142c7aa308170db5294f
SHA512

cc540851386a3b98227822b2c952a57caf15db4563f9c246b8be5bca0989aaff70e64191d010738db86598d76dd8ad4e59a50965224db9f623edb64f2f8b3e2a
SSDEEP

12288:foQyRAt8qF72zz4a5wbpkTPVNI8mQdd1lzRB6nC8OziDjmRkR:qm8qF7Gzp5waTPVNuIdnYC8OyCM

Score

10^/10

asyncrat 2 money discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

2 MONEY

twart.myfirewall.org:14143

Mutex

udn3BZ1Fqt3jtiZx

Attributes

delay
30
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	QUOTATION No.2400228341.pdf.exe

Executes dropped EXE 4 IoCs

pid	Process
3152	svchost.exe
4084	svchost.exe
2208	svchost.exe
2864	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3708 set thread context of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3152 set thread context of 2864	3152	svchost.exe	110

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 8 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	QUOTATION No.2400228341.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	QUOTATION No.2400228341.pdf.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
2780	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
4640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
3708	QUOTATION No.2400228341.pdf.exe
3708	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
4112	QUOTATION No.2400228341.pdf.exe
3152	svchost.exe
3152	svchost.exe
3152	svchost.exe
3152	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3708	QUOTATION No.2400228341.pdf.exe
Token: SeDebugPrivilege	4112	QUOTATION No.2400228341.pdf.exe
Token: SeDebugPrivilege	3152	svchost.exe
Token: SeDebugPrivilege	2864	svchost.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 3708 wrote to memory of 1956	3708	QUOTATION No.2400228341.pdf.exe	96
PID 3708 wrote to memory of 1956	3708	QUOTATION No.2400228341.pdf.exe	96
PID 3708 wrote to memory of 1956	3708	QUOTATION No.2400228341.pdf.exe	96
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 3708 wrote to memory of 4112	3708	QUOTATION No.2400228341.pdf.exe	97
PID 4112 wrote to memory of 2724	4112	QUOTATION No.2400228341.pdf.exe	101
PID 4112 wrote to memory of 2724	4112	QUOTATION No.2400228341.pdf.exe	101
PID 4112 wrote to memory of 2724	4112	QUOTATION No.2400228341.pdf.exe	101
PID 4112 wrote to memory of 388	4112	QUOTATION No.2400228341.pdf.exe	103
PID 4112 wrote to memory of 388	4112	QUOTATION No.2400228341.pdf.exe	103
PID 4112 wrote to memory of 388	4112	QUOTATION No.2400228341.pdf.exe	103
PID 2724 wrote to memory of 4640	2724	cmd.exe	105
PID 2724 wrote to memory of 4640	2724	cmd.exe	105
PID 2724 wrote to memory of 4640	2724	cmd.exe	105
PID 388 wrote to memory of 2780	388	cmd.exe	106
PID 388 wrote to memory of 2780	388	cmd.exe	106
PID 388 wrote to memory of 2780	388	cmd.exe	106
PID 388 wrote to memory of 3152	388	cmd.exe	107
PID 388 wrote to memory of 3152	388	cmd.exe	107
PID 388 wrote to memory of 3152	388	cmd.exe	107
PID 3152 wrote to memory of 4084	3152	svchost.exe	108
PID 3152 wrote to memory of 4084	3152	svchost.exe	108
PID 3152 wrote to memory of 4084	3152	svchost.exe	108
PID 3152 wrote to memory of 2208	3152	svchost.exe	109
PID 3152 wrote to memory of 2208	3152	svchost.exe	109
PID 3152 wrote to memory of 2208	3152	svchost.exe	109
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110
PID 3152 wrote to memory of 2864	3152	svchost.exe	110

C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3708
- C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe"
  2⤵
  PID:1956
- C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4112
- - 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:2724
  - - 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:4640
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5E09.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:388
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2780
  - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3152
    - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
        
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        5⤵
        Executes dropped EXE
        
        PID:4084
    - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
        
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        5⤵
        Executes dropped EXE
        
        PID:2208
    - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
        
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2864

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\QUOTATION No.2400228341.pdf.exe.log

Filesize
1KB

MD5
7cad59aef5a93f093b6ba494f13f796f

SHA1
3cef97b77939bfc06dfd3946fc1a8cd159f67100

SHA256
1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55

SHA512
8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

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

Filesize
608KB

MD5
690c1b65a6267d6d0b201ba46089aabc

SHA1
9eb6859bae82bcf8b9df7cf4fc061cd9155fdc39

SHA256
244f3a2fad1afa232909355901f33cca18ea95444c5d142c7aa308170db5294f

SHA512
cc540851386a3b98227822b2c952a57caf15db4563f9c246b8be5bca0989aaff70e64191d010738db86598d76dd8ad4e59a50965224db9f623edb64f2f8b3e2a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5E09.tmp.bat

Filesize
154B

MD5
f1e2992ea0e20a0d856301476b433e4f

SHA1
63a7fe4fae152eb202dd80ef87c58e160a761e95

SHA256
27e90618fcd49153c29e46d700fc105fada91ca5c57d566332b257a525404f3c

SHA512
aaa10e7e37451c811386e234a9ff20c5efd6adc9ad74d4b60a7c64847a313433484631f49e39e930a0d1c9e9ce0cd6917e78b0de30ca1e668ac2d477b0f91eaa

Download Submit
memory/3152-29-0x00000000060A0000-0x00000000063F4000-memory.dmp

Filesize
3.3MB

Download
memory/3708-12-0x0000000008E00000-0x0000000008E54000-memory.dmp

Filesize
336KB

Download
memory/3708-11-0x0000000006240000-0x0000000006256000-memory.dmp

Filesize
88KB

Download
memory/3708-6-0x0000000005770000-0x000000000580C000-memory.dmp

Filesize
624KB

Download
memory/3708-7-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3708-8-0x0000000005910000-0x000000000592E000-memory.dmp

Filesize
120KB

Download
memory/3708-9-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3708-10-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3708-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

Filesize
584KB

Download
memory/3708-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3708-5-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/3708-4-0x0000000004C50000-0x0000000004FA4000-memory.dmp

Filesize
3.3MB

Download
memory/3708-1-0x0000000000120000-0x00000000001BA000-memory.dmp

Filesize
616KB

Download
memory/3708-17-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3708-2-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/4112-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4112-20-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/4112-24-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4112-19-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4112-18-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/4112-16-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download