asyncrat | 3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd

General

Target

JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
Size

72KB
MD5

83e4f77cae137c7bff6a24007930ea56
SHA1

45139cb5e3d5dfde3a190481623a66cb6716e1af
SHA256

3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd
SHA512

a57d5d62a74a6d948db770f51497985b170c761f8c7ad849c9e6d8de902def26f1e8cc7c56498fb1f9c71cc84cc6b5fca5a12c703a35cb16c0cff48eb90b315c
SSDEEP

1536:EoD1Mth9MRwaeb4hSFqmOoy8grJKmVcl:EoD1MthMwaeb4G4ocNK8Y

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

sdjacffkienmtfsm

Attributes

delay
9
install
true
install_file
firfafox.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/0x0007000000012117-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2716	firfafox.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
2856	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
2584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
Token: SeDebugPrivilege	2716	firfafox.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 2736	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	30
PID 2996 wrote to memory of 2736	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	30
PID 2996 wrote to memory of 2736	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	30
PID 2996 wrote to memory of 2684	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	32
PID 2996 wrote to memory of 2684	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	32
PID 2996 wrote to memory of 2684	2996	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	32
PID 2736 wrote to memory of 2584	2736	cmd.exe	34
PID 2736 wrote to memory of 2584	2736	cmd.exe	34
PID 2736 wrote to memory of 2584	2736	cmd.exe	34
PID 2684 wrote to memory of 2856	2684	cmd.exe	35
PID 2684 wrote to memory of 2856	2684	cmd.exe	35
PID 2684 wrote to memory of 2856	2684	cmd.exe	35
PID 2684 wrote to memory of 2716	2684	cmd.exe	36
PID 2684 wrote to memory of 2716	2684	cmd.exe	36
PID 2684 wrote to memory of 2716	2684	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_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd /tr '"C:\Users\Admin\AppData\Roaming\firfafox.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd /tr '"C:\Users\Admin\AppData\Roaming\firfafox.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2584
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp12E5.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2856
- - C:\Users\Admin\AppData\Roaming\firfafox.exe
    "C:\Users\Admin\AppData\Roaming\firfafox.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2716

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\tmp12E5.tmp.bat

Filesize
152B

MD5
fc3dec551f6d93afdea107412fec0823

SHA1
f3337ae24d683cb20e6195fd8901f0cf0cd7d4b2

SHA256
837b3b7bbd9edb1c694efe7c73038656eb4e321c98901f2e055569b44e4d14a4

SHA512
b5c5633d85ae613439336f93483a688b73e7e195525386885a8b5d83fd9ec4edf2e908bc99d5fbedb92185dafcf167b59cc327ab2af175987a1746d67724ca1f

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

Filesize
72KB

MD5
83e4f77cae137c7bff6a24007930ea56

SHA1
45139cb5e3d5dfde3a190481623a66cb6716e1af

SHA256
3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd

SHA512
a57d5d62a74a6d948db770f51497985b170c761f8c7ad849c9e6d8de902def26f1e8cc7c56498fb1f9c71cc84cc6b5fca5a12c703a35cb16c0cff48eb90b315c

Download Submit
memory/2716-17-0x0000000000D30000-0x0000000000D42000-memory.dmp

Filesize
72KB

Download
memory/2996-0-0x000007FEF5433000-0x000007FEF5434000-memory.dmp

Filesize
4KB

Download
memory/2996-1-0x0000000000190000-0x00000000001A2000-memory.dmp

Filesize
72KB

Download
memory/2996-2-0x000007FEF5433000-0x000007FEF5434000-memory.dmp

Filesize
4KB

Download
memory/2996-3-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

Filesize
9.9MB

Download
memory/2996-12-0x000007FEF5430000-0x000007FEF5E1C000-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