asyncrat | cdcc8531c42e3ede33c0ecbcb82f7a6e5445e959eee3796475258df830a18813

General

Target

Halkbank_Ekstre_20210118_162356_389771.exe
Size

1003KB
MD5

84217fc5c07aabf3321ed2c0feed1cba
SHA1

4ba652be61d9185a8ae35f12a951d315f2c5dec5
SHA256

cdcc8531c42e3ede33c0ecbcb82f7a6e5445e959eee3796475258df830a18813
SHA512

923d5fb3e3879837e338d0437a8751074a8114f8e6d7f8c0e4c960109b00bafe9d92be41db9ed46f20249cf6b5d4f90f5b8ed173f7d0a6b1df16c046e7f50f13

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:1604

91.193.75.189:6606

91.193.75.189:7707

91.193.75.189:8808

91.193.75.189:1604

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
mfafeIQA2jA2dXxxjBmJHl3XAeFPQwQb
anti_detection
false
autorun
false
bdos
false
delay
Default
host
127.0.0.1,91.193.75.189
hwid
10
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6606,7707,8808,1604
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/4056-16-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/4056-17-0x000000000040D0AE-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank_Ekstre_20210118_162356_389771.exe

description	pid	process	target process
PID 3888 set thread context of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.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 1 IoCs

Processes:

Halkbank_Ekstre_20210118_162356_389771.exe

pid process

3888 Halkbank_Ekstre_20210118_162356_389771.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Halkbank_Ekstre_20210118_162356_389771.exe

description pid process

Token: SeDebugPrivilege 3888 Halkbank_Ekstre_20210118_162356_389771.exe

pid	process
2484	schtasks.exe

pid	process
3888	Halkbank_Ekstre_20210118_162356_389771.exe

description	pid	process
Token: SeDebugPrivilege	3888	Halkbank_Ekstre_20210118_162356_389771.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Halkbank_Ekstre_20210118_162356_389771.exe

description	pid	process	target process
PID 3888 wrote to memory of 2484	3888	Halkbank_Ekstre_20210118_162356_389771.exe	schtasks.exe
PID 3888 wrote to memory of 2484	3888	Halkbank_Ekstre_20210118_162356_389771.exe	schtasks.exe
PID 3888 wrote to memory of 2484	3888	Halkbank_Ekstre_20210118_162356_389771.exe	schtasks.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe
PID 3888 wrote to memory of 4056	3888	Halkbank_Ekstre_20210118_162356_389771.exe	Halkbank_Ekstre_20210118_162356_389771.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210118_162356_389771.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210118_162356_389771.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3888

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JsghWrfn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA4A.tmp"
2⤵
- Creates scheduled task(s)
PID:2484

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210118_162356_389771.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210118_162356_389771.exe"
2⤵
PID:4056

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank_Ekstre_20210118_162356_389771.exe.log
MD5
65f1f0c7993639f9f9e1d524224a2c93

SHA1
5b51a6a56f3041dbc2d3f510252bbe68ffbbc59c

SHA256
e582e80a644a998d1b2958bdcb0cd1e899076befa7c5e868d033b3fe75a2ca93

SHA512
3e8953968bbc31f3105a0df28b95edfb4cee8af78ec527d47707b82e3d5fc2aa725fca574de3c963da53614e60d282408b21d075eed007be25679e9458bf1c23

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAA4A.tmp
MD5
053e66536e6c95ce23d2cbcfb1da668c

SHA1
d6542da30162113614622d0e759150fd14f33ae4

SHA256
7e66cc02161c50d966a4debdfb63de2ccd70171303122bdcf05de548dbbb1bcc

SHA512
ddeb45ba4cd77fbb70173d11c8600ad265382f15dbf7a01a21d70d09f1693a6219a9af93fd72b1305e9b32ed5981a1e00560969ce8e3e3e3225180967f106ed4

Download Submit
memory/2484-14-0x0000000000000000-mapping.dmp

Download
memory/3888-7-0x0000000004D90000-0x0000000004D91000-memory.dmp

Filesize
4KB

Download
memory/3888-13-0x0000000000BF0000-0x0000000000C7B000-memory.dmp

Filesize
556KB

Download
memory/3888-8-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

Filesize
4KB

Download
memory/3888-9-0x0000000004C70000-0x0000000004C71000-memory.dmp

Filesize
4KB

Download
memory/3888-10-0x0000000004F60000-0x0000000004F61000-memory.dmp

Filesize
4KB

Download
memory/3888-11-0x0000000005790000-0x0000000005791000-memory.dmp

Filesize
4KB

Download
memory/3888-12-0x0000000004F40000-0x0000000004F53000-memory.dmp

Filesize
76KB

Download
memory/3888-2-0x0000000073A20000-0x000000007410E000-memory.dmp

Filesize
6.9MB

Download
memory/3888-6-0x0000000005290000-0x0000000005291000-memory.dmp

Filesize
4KB

Download
memory/3888-5-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

Filesize
4KB

Download
memory/3888-3-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/4056-17-0x000000000040D0AE-mapping.dmp

Download
memory/4056-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4056-19-0x0000000073A20000-0x000000007410E000-memory.dmp

Filesize
6.9MB

Download
memory/4056-22-0x0000000004E00000-0x0000000004E01000-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