3659669527d292fb63405f39a519159594c6eb2ffe4acf4107fabec1cdef01a5

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 09:59

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General

Target

b724d7b399d8d582917e3053b67c5683.exe
Size

9KB
MD5

b724d7b399d8d582917e3053b67c5683
SHA1

1ca1ddf1123ddf240a8cb249c676b0d4e8353418
SHA256

3659669527d292fb63405f39a519159594c6eb2ffe4acf4107fabec1cdef01a5
SHA512

8454a2e038016c8e5998ecf61ce0cdaa26281e503c2218391310b148a6d62696cc47c7cac38b8d4864439b7ea46e130f98b4d83129ea4ecb6e7660da0fb7c7a0
SSDEEP

192:d7nr2Y9dupNRG/LfhBHTCdnfTWBNwsBQ3mfAZh60fZS6LsxiR:BnrXDutGTZBzCF7Kwu1fJMZS68iR

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2064	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\weiyuan = "C:\\Windows\\system32\\weiyuan.exe"	b724d7b399d8d582917e3053b67c5683.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\weiyuan.exe	b724d7b399d8d582917e3053b67c5683.exe
File created	C:\Windows\SysWOW64\weiyuan.exe	b724d7b399d8d582917e3053b67c5683.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2164	b724d7b399d8d582917e3053b67c5683.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 1344	2164	b724d7b399d8d582917e3053b67c5683.exe	21
PID 2164 wrote to memory of 2064	2164	b724d7b399d8d582917e3053b67c5683.exe	28
PID 2164 wrote to memory of 2064	2164	b724d7b399d8d582917e3053b67c5683.exe	28
PID 2164 wrote to memory of 2064	2164	b724d7b399d8d582917e3053b67c5683.exe	28
PID 2164 wrote to memory of 2064	2164	b724d7b399d8d582917e3053b67c5683.exe	28

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1344
- C:\Users\Admin\AppData\Local\Temp\b724d7b399d8d582917e3053b67c5683.exe
  "C:\Users\Admin\AppData\Local\Temp\b724d7b399d8d582917e3053b67c5683.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\B724D7~1.EXE > nul
    3⤵
    - Deletes itself
    PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1344-1-0x0000000013150000-0x0000000013AC5000-memory.dmp

Filesize
9.5MB

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memory/2164-3-0x0000000013150000-0x000000001315B000-memory.dmp

Filesize
44KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads