bc96dba560fa777ba55e1033f4b93f7ad0a5153a6916ecfcc6e7bfcda31db7b9

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2023 02:19

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General

Target

NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
Size

63KB
MD5

beffc8f71e67a6ac4d26067349337270
SHA1

e5a9c98a8564c1f4f32204d0b621a9972e9a0b50
SHA256

bc96dba560fa777ba55e1033f4b93f7ad0a5153a6916ecfcc6e7bfcda31db7b9
SHA512

6eb1af92eb5f7a4788c6bd304f1d45d048fcc8ebe16e68afceff0733d945bddb9751ebc42b2349c417668132fc7e9b49a532c57df3bf3fcc62173163754a6d9d
SSDEEP

768:V+aiqH1sziGJLL6iiaGNZ7KmA2UMSwBfNrGxnT0BrjqstFiwADKakU1erbQ1JaGz:IaiqH1s+kCtrA2UMT0mTFibDKa1Xohi

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe sIRC4.exe"	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe

Drops file in System32 directory 20 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xdccPrograms\appvcleaner.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\sIRC4.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7zG.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\MavInject32.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7z.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\AppVShNotify.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7zFM.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\7zG.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\AppVShNotify.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\InspectorOfficeGadget.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\IntegratedOffice.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\DC++ Share\MavInject32.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\office2016setup.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\7z.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\Uninstall.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\IntegratedOffice.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\DC++ Share\OfficeC2RClient.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\OfficeC2RClient.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File opened for modification	C:\Windows\SysWOW64\sIRC4.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
File created	C:\Windows\SysWOW64\xdccPrograms\office2016setup.exe	NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.beffc8f71e67a6ac4d26067349337270_JC.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
PID:4644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\xdccPrograms\7z.exe

Filesize
458KB

MD5
2a5aee5a27d6729e0a2f7fa64516c6db

SHA1
dab0aad3646999b7fc0c437009ab8eb0c255ddd5

SHA256
c3b7fb841f3c5f706cb652db8f2c0073052701198845510a1960245d0e7669ab

SHA512
7e28e8f2cf465aa43d9c0b64e9be8a8825ab75c4dbb638e3f2bb0bf0611067c6b44e1c7babd11eded6f49c3b378fd3b2e809d1eb28ba4617cb31eb10ab029be4

Download Submit
memory/4644-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-22-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-23-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-24-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-25-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-26-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-27-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-28-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-29-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-30-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-31-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-34-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4644-35-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads