asyncrat | 37f7dc1e5403ed4babd766ca88445f0c0fd555af19a5b669123660c262cc3f58

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
3268	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3088	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
4696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe
4852	installutil.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4852	installutil.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4160 wrote to memory of 4852	4160	ABA NEW ORDER No.2400228341.pdf.exe	91
PID 4852 wrote to memory of 1440	4852	installutil.exe	96
PID 4852 wrote to memory of 1440	4852	installutil.exe	96
PID 4852 wrote to memory of 1440	4852	installutil.exe	96
PID 4852 wrote to memory of 1612	4852	installutil.exe	98
PID 4852 wrote to memory of 1612	4852	installutil.exe	98
PID 4852 wrote to memory of 1612	4852	installutil.exe	98
PID 1440 wrote to memory of 4696	1440	cmd.exe	100
PID 1440 wrote to memory of 4696	1440	cmd.exe	100
PID 1440 wrote to memory of 4696	1440	cmd.exe	100
PID 1612 wrote to memory of 3088	1612	cmd.exe	101
PID 1612 wrote to memory of 3088	1612	cmd.exe	101
PID 1612 wrote to memory of 3088	1612	cmd.exe	101
PID 1612 wrote to memory of 3268	1612	cmd.exe	102
PID 1612 wrote to memory of 3268	1612	cmd.exe	102
PID 1612 wrote to memory of 3268	1612	cmd.exe	102

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:4160
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4852
- - 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:1440
  - - 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:4696
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF349.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1612
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3088
  - - 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:3268

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
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF349.tmp.bat

Filesize
154B

MD5
ffd212989fb4da7b67f74260234a5ee4

SHA1
0faad48ec8d4d20c74466a7737635fa32dbad305

SHA256
5f56ef18d134f668013da93fa5bd30343ee491999727083384f725465bebf85d

SHA512
cf144007fdbc3b216dd834948d228eb8bfad74686ebabb416d8b9ffcfcc06022707a5dd1fecbf0f9036e9bd63583955bf687321fb58c7c36a20c9088de22c26c

Download Submit
memory/3268-21-0x0000000005950000-0x000000000596A000-memory.dmp

Filesize
104KB

Download
memory/3268-20-0x0000000000C80000-0x0000000000C8C000-memory.dmp

Filesize
48KB

Download
memory/4160-4-0x0000016D43E90000-0x0000016D43EF6000-memory.dmp

Filesize
408KB

Download
memory/4160-7-0x00007FF8F2950000-0x00007FF8F3411000-memory.dmp

Filesize
10.8MB

Download
memory/4160-1-0x00007FF8F2953000-0x00007FF8F2955000-memory.dmp

Filesize
8KB

Download
memory/4160-3-0x00007FF8F2950000-0x00007FF8F3411000-memory.dmp

Filesize
10.8MB

Download
memory/4160-2-0x0000016D43E40000-0x0000016D43E46000-memory.dmp

Filesize
24KB

Download
memory/4160-0-0x0000016D43A90000-0x0000016D43A9C000-memory.dmp

Filesize
48KB

Download
memory/4852-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4852-6-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/4852-8-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/4852-9-0x0000000005410000-0x0000000005476000-memory.dmp

Filesize
408KB

Download
memory/4852-10-0x0000000005860000-0x00000000058FC000-memory.dmp

Filesize
624KB

Download
memory/4852-15-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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