asyncrat | 4f009430e013267656dca53381d5dbbf0ea5dbb695d87fcf92e8109c836efd58

General

Target

imagelogger.exe
Size

48KB
MD5

505210a90b66dceef47778cafebf7f6d
SHA1

c593d5f8b4aa53c59d2568ba02e935c6a7650a1e
SHA256

4f009430e013267656dca53381d5dbbf0ea5dbb695d87fcf92e8109c836efd58
SHA512

992176faa1c037bdf33dd9686b49d3115f457d7b1de8b9fc36b1e59d85ac1a446ba186941c40e5c6b9da88fd27bd746c026cb028a10004c5d27e6e4419e11c23
SSDEEP

768:TFWgtBBILDmY1+VxiZRkHigH8Ybug0ABsNqT5uvEgK/JfZVc6KN:TFDak8ZRkRzbR0+sNqtunkJfZVclN

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

Mutex

DcRatMutex_qwqdanchun

Attributes

c2_url_file
https://Pastebin.com/raw/fevFJe98
delay
1
install
true
install_file
image logger.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/0x000c000000012263-14.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2856	image logger.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 29 IoCs

Web Service

T1102

flow	ioc
29	pastebin.com
7	pastebin.com
25	pastebin.com
28	pastebin.com
23	pastebin.com
24	pastebin.com
9	pastebin.com
13	pastebin.com
18	pastebin.com
5	pastebin.com
16	pastebin.com
19	pastebin.com
27	pastebin.com
30	pastebin.com
11	pastebin.com
15	pastebin.com
22	pastebin.com
6	pastebin.com
12	pastebin.com
31	pastebin.com
32	pastebin.com
26	pastebin.com
10	pastebin.com
20	pastebin.com
21	pastebin.com
17	pastebin.com
4	pastebin.com
8	pastebin.com
14	pastebin.com

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
2384	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
740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2992	imagelogger.exe
2992	imagelogger.exe
2992	imagelogger.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	imagelogger.exe
Token: SeDebugPrivilege	2856	image logger.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 1660	2992	imagelogger.exe	31
PID 2992 wrote to memory of 1660	2992	imagelogger.exe	31
PID 2992 wrote to memory of 1660	2992	imagelogger.exe	31
PID 2992 wrote to memory of 2796	2992	imagelogger.exe	33
PID 2992 wrote to memory of 2796	2992	imagelogger.exe	33
PID 2992 wrote to memory of 2796	2992	imagelogger.exe	33
PID 2796 wrote to memory of 2384	2796	cmd.exe	35
PID 2796 wrote to memory of 2384	2796	cmd.exe	35
PID 2796 wrote to memory of 2384	2796	cmd.exe	35
PID 1660 wrote to memory of 740	1660	cmd.exe	36
PID 1660 wrote to memory of 740	1660	cmd.exe	36
PID 1660 wrote to memory of 740	1660	cmd.exe	36
PID 2796 wrote to memory of 2856	2796	cmd.exe	37
PID 2796 wrote to memory of 2856	2796	cmd.exe	37
PID 2796 wrote to memory of 2856	2796	cmd.exe	37

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\imagelogger.exe
"C:\Users\Admin\AppData\Local\Temp\imagelogger.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "image logger" /tr '"C:\Users\Admin\AppData\Roaming\image logger.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "image logger" /tr '"C:\Users\Admin\AppData\Roaming\image logger.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:740
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE714.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2384
- - C:\Users\Admin\AppData\Roaming\image logger.exe
    "C:\Users\Admin\AppData\Roaming\image logger.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2856

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE714.tmp.bat

Filesize
156B

MD5
226941bdb575b85284140dca7ce27919

SHA1
0f6a35ebb8071c61ac6f1f734d5eb4bd16b049bc

SHA256
88fdf161d7523fd49c345d4149362040cfdd27aa98803fe2aea6e9606d011312

SHA512
16e6cce2a9e15cbf6aa59965b9376e9bc99b228eda64c7dc82af895eb921742892f908fcc0f555663f01f4a9ab8933ded7e76b4ba482d91cd94d5e2312a95291

Download Submit
C:\Users\Admin\AppData\Roaming\image logger.exe

Filesize
48KB

MD5
505210a90b66dceef47778cafebf7f6d

SHA1
c593d5f8b4aa53c59d2568ba02e935c6a7650a1e

SHA256
4f009430e013267656dca53381d5dbbf0ea5dbb695d87fcf92e8109c836efd58

SHA512
992176faa1c037bdf33dd9686b49d3115f457d7b1de8b9fc36b1e59d85ac1a446ba186941c40e5c6b9da88fd27bd746c026cb028a10004c5d27e6e4419e11c23

Download Submit
memory/2856-16-0x0000000001150000-0x0000000001162000-memory.dmp

Filesize
72KB

Download
memory/2992-0-0x000007FEF51C3000-0x000007FEF51C4000-memory.dmp

Filesize
4KB

Download
memory/2992-1-0x0000000000DA0000-0x0000000000DB2000-memory.dmp

Filesize
72KB

Download
memory/2992-2-0x000007FEF51C0000-0x000007FEF5BAC000-memory.dmp

Filesize
9.9MB

Download
memory/2992-12-0x000007FEF51C0000-0x000007FEF5BAC000-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