asyncrat | 0dc0afcacc62e67589ff14452f5e1fc749c36f70ecedbed56b39c0e0081c2e3d

General

Target

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
Size

375KB
MD5

fe6df2be242b8f051d1031ac17f97788
SHA1

836da0ac005c03940cc3401d83528326a2148a56
SHA256

0dc0afcacc62e67589ff14452f5e1fc749c36f70ecedbed56b39c0e0081c2e3d
SHA512

bb930da5561f33315f480b2c0347e49de208d4fcf178f4dcb94e4b24a347ef6ec1dededc5ff4cd0867f35d6e36f7bfb5f8560756dabc9f09c611863058993ae0
SSDEEP

6144:GKmHRfq8+gw9tiUhrMQqAnlxBqOJ2+/GdAkV10Uv5ERZX:GKmxfqNP9/MtAvMS2Dyc0UviRZ

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

laboratoriogenfarp.linkpc.net:3490

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
windefendllinici.exe
install_folder
%Temp%

aes.plain

Signatures

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

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

windefendllinici.exe

pid process

2680 windefendllinici.exe

pid	process
2680	windefendllinici.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

description	pid	process	target process
PID 5116 set thread context of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

schtasks.exetimeout.exewindefendllinici.exefe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exefe6df2be242b8f051d1031ac17f97788_JaffaCakes118.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windefendllinici.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2960 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

Processes:

schtasks.exe

pid process

3244 schtasks.exe

pid	process
2960	timeout.exe

pid	process
3244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exefe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

pid	process
5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exefe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
Token: SeDebugPrivilege	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exefe6df2be242b8f051d1031ac17f97788_JaffaCakes118.execmd.execmd.exe

description	pid	process	target process
PID 5116 wrote to memory of 1300	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 1300	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 1300	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 5116 wrote to memory of 4516	5116	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
PID 4516 wrote to memory of 516	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 516	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 516	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 4040	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 4040	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 4040	4516	fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe	cmd.exe
PID 4040 wrote to memory of 2960	4040	cmd.exe	timeout.exe
PID 4040 wrote to memory of 2960	4040	cmd.exe	timeout.exe
PID 4040 wrote to memory of 2960	4040	cmd.exe	timeout.exe
PID 516 wrote to memory of 3244	516	cmd.exe	schtasks.exe
PID 516 wrote to memory of 3244	516	cmd.exe	schtasks.exe
PID 516 wrote to memory of 3244	516	cmd.exe	schtasks.exe
PID 4040 wrote to memory of 2680	4040	cmd.exe	windefendllinici.exe
PID 4040 wrote to memory of 2680	4040	cmd.exe	windefendllinici.exe
PID 4040 wrote to memory of 2680	4040	cmd.exe	windefendllinici.exe

C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5116

C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe"
2⤵
PID:1300

C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windefendllinici" /tr '"C:\Users\Admin\AppData\Local\Temp\windefendllinici.exe"' & exit
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:516

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "windefendllinici" /tr '"C:\Users\Admin\AppData\Local\Temp\windefendllinici.exe"'
4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3244

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC435.tmp.bat""
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4040

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2960

C:\Users\Admin\AppData\Local\Temp\windefendllinici.exe
"C:\Users\Admin\AppData\Local\Temp\windefendllinici.exe"
4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2680

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

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fe6df2be242b8f051d1031ac17f97788_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC435.tmp.bat

Filesize
163B

MD5
7e6e90a2330a954bd2e7edeb2db29514

SHA1
5659d66015f1edc5333df08c847ecc5d09745b3a

SHA256
65b28cf86a40d036bb3099dd3948d60f79fd88137b059a7c385eef3be9e8701a

SHA512
de51115f0b927c63e3787221aac5d53fa6e8ff729667c1c2b03156b696058aafbf2fae0d3f9fa487cbcb21d5f783d8fecdcd4c63a62daeb4a9f4884a2c6860b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\windefendllinici.exe

Filesize
375KB

MD5
fe6df2be242b8f051d1031ac17f97788

SHA1
836da0ac005c03940cc3401d83528326a2148a56

SHA256
0dc0afcacc62e67589ff14452f5e1fc749c36f70ecedbed56b39c0e0081c2e3d

SHA512
bb930da5561f33315f480b2c0347e49de208d4fcf178f4dcb94e4b24a347ef6ec1dededc5ff4cd0867f35d6e36f7bfb5f8560756dabc9f09c611863058993ae0

Download Submit
memory/4516-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4516-21-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4516-17-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4516-15-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/5116-10-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/5116-8-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

Filesize
40KB

Download
memory/5116-9-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/5116-0-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/5116-11-0x00000000005D0000-0x0000000000610000-memory.dmp

Filesize
256KB

Download
memory/5116-7-0x0000000004D50000-0x0000000004DA6000-memory.dmp

Filesize
344KB

Download
memory/5116-6-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/5116-5-0x0000000004A20000-0x0000000004A2A000-memory.dmp

Filesize
40KB

Download
memory/5116-16-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/5116-4-0x0000000004B20000-0x0000000004BB2000-memory.dmp

Filesize
584KB

Download
memory/5116-3-0x00000000050D0000-0x0000000005674000-memory.dmp

Filesize
5.6MB

Download
memory/5116-2-0x0000000004A80000-0x0000000004B1C000-memory.dmp

Filesize
624KB

Download
memory/5116-1-0x0000000000010000-0x0000000000074000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads