2d3e0906193d98c20d2aa36992e54cd72e97db5c70623ae16e1f6627afbaebc3

Analysis

max time kernel
151s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2024 03:05

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General

Target

7bfa2839513698f7c8a13f6af2a88544.exe
Size

10KB
MD5

7bfa2839513698f7c8a13f6af2a88544
SHA1

c2930a6c5e1f9e2cf15e3df74aa0f0a5eb99c2a1
SHA256

2d3e0906193d98c20d2aa36992e54cd72e97db5c70623ae16e1f6627afbaebc3
SHA512

f53c6be0e392e2d1df4de3eae62a24a9e5850f56a956522f19f53475e7237daf3a79347d2aac6ce8dd4eb5b13bdb384a90aef9d70331840cd39a3879e982a80f
SSDEEP

192:m6kx1OI118VL/Z231VL0FHkGNOMYbaTftTD0sz:mpgI1aN/Z2PL0dECNDb

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
2676	squallek.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4120-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0006000000023134-3.dat	upx
behavioral2/memory/4120-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/2676-7-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\squallek.exe	7bfa2839513698f7c8a13f6af2a88544.exe
File opened for modification	C:\Windows\SysWOW64\squallek.exe	7bfa2839513698f7c8a13f6af2a88544.exe
File created	C:\Windows\SysWOW64\squalle.dll	7bfa2839513698f7c8a13f6af2a88544.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 2676	4120	7bfa2839513698f7c8a13f6af2a88544.exe	86
PID 4120 wrote to memory of 2676	4120	7bfa2839513698f7c8a13f6af2a88544.exe	86
PID 4120 wrote to memory of 2676	4120	7bfa2839513698f7c8a13f6af2a88544.exe	86
PID 4120 wrote to memory of 2596	4120	7bfa2839513698f7c8a13f6af2a88544.exe	98
PID 4120 wrote to memory of 2596	4120	7bfa2839513698f7c8a13f6af2a88544.exe	98
PID 4120 wrote to memory of 2596	4120	7bfa2839513698f7c8a13f6af2a88544.exe	98

C:\Users\Admin\AppData\Local\Temp\7bfa2839513698f7c8a13f6af2a88544.exe
"C:\Users\Admin\AppData\Local\Temp\7bfa2839513698f7c8a13f6af2a88544.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\squallek.exe
  C:\Windows\system32\squallek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2676
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\7bfa2839513698f7c8a13f6af2a88544.exe.bat
  2⤵
  PID:2596

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7bfa2839513698f7c8a13f6af2a88544.exe.bat

Filesize
182B

MD5
bd13140bd81ef55112c8fe6cc101fb89

SHA1
162be329077c384762666c54df99e4c3e4dc1e07

SHA256
3743e72ec7203d5686524912d392f833e657926a52c333c2a245997e42a7867f

SHA512
3ced1369b02b7e1785086100576ab32df4223982e482271fac8d58a841ddb690eb90b2ec8f3d29a7ba4fdb80b2dba403b1a526d39e629c0fb6c2cd7e9872900b

Download Submit
C:\Windows\SysWOW64\squallek.exe

Filesize
10KB

MD5
7bfa2839513698f7c8a13f6af2a88544

SHA1
c2930a6c5e1f9e2cf15e3df74aa0f0a5eb99c2a1

SHA256
2d3e0906193d98c20d2aa36992e54cd72e97db5c70623ae16e1f6627afbaebc3

SHA512
f53c6be0e392e2d1df4de3eae62a24a9e5850f56a956522f19f53475e7237daf3a79347d2aac6ce8dd4eb5b13bdb384a90aef9d70331840cd39a3879e982a80f

Download Submit
memory/2676-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4120-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4120-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download