asyncrat | 3dd4c0a246882a35140b2476292a4070038e90755d0f9d9da65daa06a99880f8

General

Target

Order confirmation 06022784.pdf.exe
Size

817KB
MD5

ebf8d48b57fd020ab580207bc3b0a77d
SHA1

ba9edcfaef488765bf017697887f35e351fa0224
SHA256

3dd4c0a246882a35140b2476292a4070038e90755d0f9d9da65daa06a99880f8
SHA512

a9705cb87c475eb76a8e5fd27708acfbb438e57939cfee9ae5631035b3d7a04b5cec2f302348045f1535ee8e37fb4cd0f524d1e36cc93252f6254db8d0740cd9

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

79.134.225.23:30493

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
fAuR6N9PDMVk4kTOwMECuVUvSQaoRRKq
anti_detection
false
autorun
false
bdos
false
delay
Default
host
79.134.225.23
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
30493
version
0.5.7B

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1176-14-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/1176-15-0x000000000040C70E-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

Order confirmation 06022784.pdf.exe

description pid process target process

PID 3884 set thread context of 1176 3884 Order confirmation 06022784.pdf.exe MSBuild.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2484 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Order confirmation 06022784.pdf.exe

pid process

3884 Order confirmation 06022784.pdf.exe
3884 Order confirmation 06022784.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Order confirmation 06022784.pdf.exe

description pid process

Token: SeDebugPrivilege 3884 Order confirmation 06022784.pdf.exe

description	pid	process	target process
PID 3884 set thread context of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe

pid	process
2484	schtasks.exe

pid	process
3884	Order confirmation 06022784.pdf.exe
3884	Order confirmation 06022784.pdf.exe

description	pid	process
Token: SeDebugPrivilege	3884	Order confirmation 06022784.pdf.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Order confirmation 06022784.pdf.exe

description	pid	process	target process
PID 3884 wrote to memory of 2484	3884	Order confirmation 06022784.pdf.exe	schtasks.exe
PID 3884 wrote to memory of 2484	3884	Order confirmation 06022784.pdf.exe	schtasks.exe
PID 3884 wrote to memory of 2484	3884	Order confirmation 06022784.pdf.exe	schtasks.exe
PID 3884 wrote to memory of 1976	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1976	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1976	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe
PID 3884 wrote to memory of 1176	3884	Order confirmation 06022784.pdf.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Order confirmation 06022784.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Order confirmation 06022784.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\efpeKLFkInvP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB56B.tmp"
2⤵
- Creates scheduled task(s)
PID:2484

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
PID:1976

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
PID:1176

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB56B.tmp
MD5
21c5fc9b67a85ae8fe0a522749ebcbfc

SHA1
0bb40f4dc937405364129ef05739e1b0810284b4

SHA256
a520f046be27120e276e475fecdb39de47e5c0c6b100091b09af446bcdd6fe83

SHA512
9b247b8927aaf5438a1cbfe57cbac9082add42e304026ccdaf502846ed625715a447d710994853c39017d98b4c527a5a46f5785ebc667190104ce3091eb0f5f4

Download Submit
memory/1176-19-0x0000000005280000-0x0000000005281000-memory.dmp

Filesize
4KB

Download
memory/1176-16-0x0000000073A20000-0x000000007410E000-memory.dmp

Filesize
6.9MB

Download
memory/1176-15-0x000000000040C70E-mapping.dmp

Download
memory/1176-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2484-12-0x0000000000000000-mapping.dmp

Download
memory/3884-6-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/3884-10-0x0000000007310000-0x000000000733A000-memory.dmp

Filesize
168KB

Download
memory/3884-11-0x00000000078E0000-0x00000000078E1000-memory.dmp

Filesize
4KB

Download
memory/3884-9-0x0000000005800000-0x000000000580E000-memory.dmp

Filesize
56KB

Download
memory/3884-8-0x00000000054B0000-0x00000000054B1000-memory.dmp

Filesize
4KB

Download
memory/3884-7-0x0000000005580000-0x0000000005581000-memory.dmp

Filesize
4KB

Download
memory/3884-2-0x0000000073A20000-0x000000007410E000-memory.dmp

Filesize
6.9MB

Download
memory/3884-5-0x0000000005AB0000-0x0000000005AB1000-memory.dmp

Filesize
4KB

Download
memory/3884-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads