f5984b88b0c5cf62227d231e897da76306aa0581f1141dcdd05a32a58488e1f3

Analysis

max time kernel
161s
max time network
135s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
03/11/2023, 13:32

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General

Target

NEAS.55c294c47bc2a00b46b401c790d71b50.dll
Size

137KB
MD5

55c294c47bc2a00b46b401c790d71b50
SHA1

470b4f3f5f69fd5275c8cb0b2e9ea9107cf8bd3f
SHA256

f5984b88b0c5cf62227d231e897da76306aa0581f1141dcdd05a32a58488e1f3
SHA512

376e6cbe413cd18a71a5a4880b9113315f3e3bb67e8fe4db660c2f7e261903860effe47e41c356f3b07925810497fdb3ed50c805335f761aa7760d2c6d190dea
SSDEEP

3072:zR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu5:e25GgFny61mraf

Score

8^/10

persistence

Malware Config

Signatures

Registers new Print Monitor 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2276	1216	WerFault.exe	27

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1372 wrote to memory of 1216	1372	rundll32.exe	27
PID 1216 wrote to memory of 2276	1216	rundll32.exe	28
PID 1216 wrote to memory of 2276	1216	rundll32.exe	28
PID 1216 wrote to memory of 2276	1216	rundll32.exe	28
PID 1216 wrote to memory of 2276	1216	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.55c294c47bc2a00b46b401c790d71b50.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.55c294c47bc2a00b46b401c790d71b50.dll,#1
  2⤵
  - Registers new Print Monitor
  - Sets service image path in registry
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1216 -s 232
    3⤵
    - Program crash
    PID:2276

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/1216-1-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads