asyncrat | 6c7051d2b3a809e748a98a87a0a75270000a94bb0adc035965516c1573c49671

General

Target

AWB#5305323204669,pdf.exe
Size

233KB
MD5

dab03f72d77a672205cc10130d2654c6
SHA1

83241c5520fdfc26aa7fe4d282f7e7de9018616b
SHA256

79125331a3e97dca7542b0f146bcb41429eebf7b790014317463c9239601421a
SHA512

1fad7ea231e95080ceef91d02d972db60a8d9096a7d6b3c7d50243b62eb7b07999d1af919787c11f9d3bae8d0fe257e4b97b6fada39e0cf436ef6d00423b5262

Score

10^/10

asyncrat awkasundaynight rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

AWKASUNDAYNIGHT

Mutex

chizzy25@!7^UPC

Attributes

delay
3
install
false
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/HKYwiN9V

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3260-138-0x0000000000400000-0x0000000000412000-memory.dmp	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

Processes:

AWB#5305323204669,pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	AWB#5305323204669,pdf.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

AWB#5305323204669,pdf.exe

description pid process target process

PID 1292 set thread context of 3260 1292 AWB#5305323204669,pdf.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

4528 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

AWB#5305323204669,pdf.exe

pid process

1292 AWB#5305323204669,pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

AWB#5305323204669,pdf.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1292 AWB#5305323204669,pdf.exe
Token: SeDebugPrivilege 3260 MSBuild.exe

description	pid	process	target process
PID 1292 set thread context of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe

pid	process
4528	schtasks.exe

pid	process
1292	AWB#5305323204669,pdf.exe

description	pid	process
Token: SeDebugPrivilege	1292	AWB#5305323204669,pdf.exe
Token: SeDebugPrivilege	3260	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

AWB#5305323204669,pdf.exe

description	pid	process	target process
PID 1292 wrote to memory of 4528	1292	AWB#5305323204669,pdf.exe	schtasks.exe
PID 1292 wrote to memory of 4528	1292	AWB#5305323204669,pdf.exe	schtasks.exe
PID 1292 wrote to memory of 4528	1292	AWB#5305323204669,pdf.exe	schtasks.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe
PID 1292 wrote to memory of 3260	1292	AWB#5305323204669,pdf.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\AWB#5305323204669,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\AWB#5305323204669,pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pgIKzElqxTk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7B30.tmp"
2⤵
- Creates scheduled task(s)
PID:4528

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3260

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7B30.tmp
Filesize
1KB

MD5
6b7d28cb2499b04059c7f07c81b6c6ab

SHA1
fdb27fa3bf448fbf7f1b59e3f66374f42db7e974

SHA256
7a87e9540930e15bfb765999c1095a0b28fd9999a6fdbfad7a5c6c08afc27ec4

SHA512
0f573c399992d545b7305e2265e8bb9a59c36b669d22649c1143ece14900ad96ef822c6246962d51d04a3124c25733b88a38cd3f459723f8197dc1d925f0db4d

Download Submit
memory/1292-130-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/1292-131-0x0000000007810000-0x0000000007DB4000-memory.dmp

Filesize
5.6MB

Download
memory/1292-132-0x0000000007360000-0x00000000073F2000-memory.dmp

Filesize
584KB

Download
memory/1292-133-0x0000000007410000-0x000000000741A000-memory.dmp

Filesize
40KB

Download
memory/1292-134-0x000000000AD00000-0x000000000AD9C000-memory.dmp

Filesize
624KB

Download
memory/3260-137-0x0000000000000000-mapping.dmp

Download
memory/3260-138-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3260-139-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download
memory/4528-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads