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
behavioral2/files/0x0007000000023ca7-11.dat	family_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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe

Executes dropped EXE 1 IoCs

pid	Process
4984	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
3984	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
4028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe
Token: SeDebugPrivilege	4984	firfafox.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 3916	1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	86
PID 1088 wrote to memory of 3916	1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	86
PID 1088 wrote to memory of 2636	1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	88
PID 1088 wrote to memory of 2636	1088	JaffaCakes118_3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd.exe	88
PID 3916 wrote to memory of 4028	3916	cmd.exe	90
PID 3916 wrote to memory of 4028	3916	cmd.exe	90
PID 2636 wrote to memory of 3984	2636	cmd.exe	91
PID 2636 wrote to memory of 3984	2636	cmd.exe	91
PID 2636 wrote to memory of 4984	2636	cmd.exe	93
PID 2636 wrote to memory of 4984	2636	cmd.exe	93

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⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1088
- 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:3916
- - 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:4028
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3984
- - C:\Users\Admin\AppData\Roaming\firfafox.exe
    "C:\Users\Admin\AppData\Roaming\firfafox.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4984

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp.bat

Filesize
152B

MD5
c840622691cda33e922479805aa76b6a

SHA1
54a1f4640df08d54afcf94eb3b307b9de8f0f2cf

SHA256
3a2beac66d13ebc6e02451109b43358a1906f41b26effbf3e029e13e3a7c4442

SHA512
75091bcf6e1b79709e31bf9ab4e3ff9ff2b495f9cdc780145f514485625c422c4343aa61892c610e8c63c3ff81b901f37fa8e52d87e971bc325b4e6ef4231726

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

Filesize
72KB

MD5
83e4f77cae137c7bff6a24007930ea56

SHA1
45139cb5e3d5dfde3a190481623a66cb6716e1af

SHA256
3aa48400e3e1c4445de1af0ad00e98a503e6606eb979e0e546278f22bf0fb2cd

SHA512
a57d5d62a74a6d948db770f51497985b170c761f8c7ad849c9e6d8de902def26f1e8cc7c56498fb1f9c71cc84cc6b5fca5a12c703a35cb16c0cff48eb90b315c

Download Submit
memory/1088-0-0x00007FFC0D293000-0x00007FFC0D295000-memory.dmp

Filesize
8KB

Download
memory/1088-1-0x0000000000CC0000-0x0000000000CD2000-memory.dmp

Filesize
72KB

Download
memory/1088-2-0x00007FFC0D293000-0x00007FFC0D295000-memory.dmp

Filesize
8KB

Download
memory/1088-3-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/1088-8-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads