asyncrat | 9180b650add0089b72e050e358d7cac79d5e482b605f07692f35b9a6d12d9fd8

General

Target

cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe
Size

744KB
MD5

cf50ae69e12fe9da2b1f5793f517e281
SHA1

3a312594b112050ebb4fc437ad5ca351ab3c1fe5
SHA256

9180b650add0089b72e050e358d7cac79d5e482b605f07692f35b9a6d12d9fd8
SHA512

2ddf75fe9d1cab79de587fd23d5b6de639f27217ac4c50f295d6456f25e53eb95e3da8514978f6eaa5f80cf3462931e804a0454cfaddd82802cd8235189b3571
SSDEEP

12288:gi70uZvt2NjFmzPkK46kb4by7UZGR3p2gex3HWkXvfWnNJKURYeVFZQrT4y:g00uZvMNj5KDk0O7nRPqGk/fnle0T4

Score

10^/10

asyncrat null discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6

Botnet

null

C2

188.215.229.44:7900

Mutex

wucfjfzenbowqnj

Attributes

delay
5
install
false
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2332 set thread context of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33

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 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.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
2688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2660	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2688	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2688	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2688	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2688	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33
PID 2332 wrote to memory of 2660	2332	cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YjvUEUyTAJjLW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8CC5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2688
- C:\Users\Admin\AppData\Local\Temp\cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cf50ae69e12fe9da2b1f5793f517e281_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660

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

System Information Discovery

1

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\Temp\tmp8CC5.tmp

Filesize
1KB

MD5
e2a4956b046e38f7f3165b359abe6085

SHA1
accdb5e30cdf24a68e58dce2d549b6b866cde7b2

SHA256
5387b58f53e7f3fb6fb1daef01bba1ab65880fec009ee7485384bceba0f671bf

SHA512
d8e6055fb8884556ce63f87c8108f292842f5fcd77e8e58cf7e83d3ce44815ee934efeb2b0a9250a5f95cdb25bf56f07573d78084aa420b3ea8ce94861c195a6

Download Submit
memory/2332-0-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/2332-1-0x0000000000F90000-0x0000000001050000-memory.dmp

Filesize
768KB

Download
memory/2332-2-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-3-0x0000000000530000-0x000000000054A000-memory.dmp

Filesize
104KB

Download
memory/2332-4-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/2332-5-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-6-0x0000000005360000-0x00000000053E4000-memory.dmp

Filesize
528KB

Download
memory/2332-7-0x0000000000A70000-0x0000000000A82000-memory.dmp

Filesize
72KB

Download
memory/2332-30-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-28-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-29-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2660-31-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-32-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads