asyncrat | 0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4

General

Target

0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
Size

74KB
MD5

60a2e12c26687be2c910159d0e324829
SHA1

f4aa9963bb15fd6a56f1da05fb51e80245010bec
SHA256

0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4
SHA512

3dfebdf6bf65fa1d51f942a93362aeb7872f39de34836a2221075d6661ed2322c72fda8562e08e165d875ed19fcfb6c91daced5f820a50608ae5d108d5f13ed4
SSDEEP

1536:2RU98cxpeaC/zPMV2UT7a3I671bI/4ev1QzcR8VclN:8U+cxp7AzPMV8D71bIgetQY+Y

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

147.185.221.20:22308

147.185.221.20:9090

Mutex

vfravbfpvqwqeb

Attributes

delay
1
install
true
install_file
steam.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/3036-1-0x0000000000B00000-0x0000000000B18000-memory.dmp	VenomRAT
behavioral1/files/0x0009000000018d6b-16.dat	VenomRAT
behavioral1/memory/2876-18-0x0000000000120000-0x0000000000138000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x0009000000018d6b-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

steam.exe

pid	Process
2876	steam.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

Processes:

timeout.exe

pid	Process
2732	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
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exesteam.exe

pid	Process
3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
2876	steam.exe
2876	steam.exe
2876	steam.exe
2876	steam.exe
2876	steam.exe
2876	steam.exe
2876	steam.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exesteam.exe

description	pid	Process
Token: SeDebugPrivilege	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
Token: SeDebugPrivilege	2876	steam.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

steam.exe

pid	Process
2876	steam.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.execmd.execmd.exe

description	pid	Process	procid_target
PID 3036 wrote to memory of 2544	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	30
PID 3036 wrote to memory of 2544	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	30
PID 3036 wrote to memory of 2544	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	30
PID 3036 wrote to memory of 2280	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	31
PID 3036 wrote to memory of 2280	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	31
PID 3036 wrote to memory of 2280	3036	0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe	31
PID 2280 wrote to memory of 2732	2280	cmd.exe	34
PID 2280 wrote to memory of 2732	2280	cmd.exe	34
PID 2280 wrote to memory of 2732	2280	cmd.exe	34
PID 2544 wrote to memory of 2752	2544	cmd.exe	35
PID 2544 wrote to memory of 2752	2544	cmd.exe	35
PID 2544 wrote to memory of 2752	2544	cmd.exe	35
PID 2280 wrote to memory of 2876	2280	cmd.exe	36
PID 2280 wrote to memory of 2876	2280	cmd.exe	36
PID 2280 wrote to memory of 2876	2280	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\0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe
"C:\Users\Admin\AppData\Local\Temp\0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "steam" /tr '"C:\Users\Admin\AppData\Roaming\steam.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "steam" /tr '"C:\Users\Admin\AppData\Roaming\steam.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2752
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpA5B1.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2280
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2732
- - C:\Users\Admin\AppData\Roaming\steam.exe
    "C:\Users\Admin\AppData\Roaming\steam.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2876

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA5B1.tmp.bat

Filesize
149B

MD5
3c5536fea9cac31e2c1784780193308e

SHA1
75cd639d847863cf58691d3c1d40fa0d33d6a6cf

SHA256
16b0fe18b2d0fcf54c431a100dd20b20d602e2f50fa541d8446542b85ad884fe

SHA512
e73e302c1595338c184943944ea4639ccbd7b6cbbd825f95579c026ffcb0287faea9d5d975beb720c689190deae62f8132e190b4b38f1526e538e792535bcdd9

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

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

Filesize
74KB

MD5
60a2e12c26687be2c910159d0e324829

SHA1
f4aa9963bb15fd6a56f1da05fb51e80245010bec

SHA256
0bafe977cd4fd7ff27917e0aed453c8af46b52992553c1a975a2b7f6d2823ac4

SHA512
3dfebdf6bf65fa1d51f942a93362aeb7872f39de34836a2221075d6661ed2322c72fda8562e08e165d875ed19fcfb6c91daced5f820a50608ae5d108d5f13ed4

Download Submit
memory/2876-18-0x0000000000120000-0x0000000000138000-memory.dmp

Filesize
96KB

Download
memory/3036-0-0x000007FEF59C3000-0x000007FEF59C4000-memory.dmp

Filesize
4KB

Download
memory/3036-1-0x0000000000B00000-0x0000000000B18000-memory.dmp

Filesize
96KB

Download
memory/3036-3-0x000007FEF59C0000-0x000007FEF63AC000-memory.dmp

Filesize
9.9MB

Download
memory/3036-11-0x000007FEF59C0000-0x000007FEF63AC000-memory.dmp

Filesize
9.9MB

Download
memory/3036-13-0x000007FEF59C0000-0x000007FEF63AC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads