asyncrat | e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71

General

Target

JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
Size

72KB
MD5

36d24132150e820598e182d2f51b35b6
SHA1

a1773014c2f0ac1dafc87f3e8d6cd2f697417eae
SHA256

e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71
SHA512

f6da08a584e74bdc2f9f7ea611fc49cfacc8bea3e301c86b53d8c0354028e245b6d9f0149a98207023fcbb9b5561f177e6835e16dfbb2f3d6a343569c0440350
SSDEEP

768:YoBLMxx0Fs4G7WHNw13wRCn1OCDyjb5gr3ir/u2lj4/aJClZl2tYcFmVc6Ka:YoBLMxmcAUVebWrSrGsgPrlKmVcla

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

milla.publicvm.com:6606

milla.publicvm.com:7707

milla.publicvm.com:8808

Mutex

tytfuzulyxhydjlicv

Attributes

delay
8
install
true
install_file
expanda.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x00090000000120f9-14.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2696	expanda.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2848	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
2792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
Token: SeDebugPrivilege	2696	expanda.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2956	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	30
PID 2884 wrote to memory of 2956	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	30
PID 2884 wrote to memory of 2956	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	30
PID 2884 wrote to memory of 3040	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	32
PID 2884 wrote to memory of 3040	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	32
PID 2884 wrote to memory of 3040	2884	JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe	32
PID 3040 wrote to memory of 2848	3040	cmd.exe	34
PID 3040 wrote to memory of 2848	3040	cmd.exe	34
PID 3040 wrote to memory of 2848	3040	cmd.exe	34
PID 2956 wrote to memory of 2792	2956	cmd.exe	35
PID 2956 wrote to memory of 2792	2956	cmd.exe	35
PID 2956 wrote to memory of 2792	2956	cmd.exe	35
PID 3040 wrote to memory of 2696	3040	cmd.exe	36
PID 3040 wrote to memory of 2696	3040	cmd.exe	36
PID 3040 wrote to memory of 2696	3040	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71 /tr '"C:\Users\Admin\AppData\Roaming\expanda.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71 /tr '"C:\Users\Admin\AppData\Roaming\expanda.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2792
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp82D6.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3040
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2848
- - C:\Users\Admin\AppData\Roaming\expanda.exe
    "C:\Users\Admin\AppData\Roaming\expanda.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2696

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

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp82D6.tmp.bat

Filesize
151B

MD5
dcda45b749a5ed8926a371bf099059c9

SHA1
e91b0a27a62a230fe1a869237e11f7d693e65455

SHA256
671ff93434cb38a40d695c1bca638635e181e85521fa8a0becded37656acc063

SHA512
5c5e54b6234ca9557ec5c0b5d9702bc946cfe315620eb46534b14267f27f817542f714c9ae5658af478f99a8c57820c078a8a61c6ba4c914db0c1b9151cdf756

Download Submit
C:\Users\Admin\AppData\Roaming\expanda.exe

Filesize
72KB

MD5
36d24132150e820598e182d2f51b35b6

SHA1
a1773014c2f0ac1dafc87f3e8d6cd2f697417eae

SHA256
e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71

SHA512
f6da08a584e74bdc2f9f7ea611fc49cfacc8bea3e301c86b53d8c0354028e245b6d9f0149a98207023fcbb9b5561f177e6835e16dfbb2f3d6a343569c0440350

Download Submit
memory/2696-16-0x0000000001330000-0x0000000001342000-memory.dmp

Filesize
72KB

Download
memory/2884-0-0x000007FEF5E33000-0x000007FEF5E34000-memory.dmp

Filesize
4KB

Download
memory/2884-1-0x0000000001130000-0x0000000001142000-memory.dmp

Filesize
72KB

Download
memory/2884-2-0x000007FEF5E30000-0x000007FEF681C000-memory.dmp

Filesize
9.9MB

Download
memory/2884-12-0x000007FEF5E30000-0x000007FEF681C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads