376b0d8fb80858c81d3e0536b9dc4e7be10948118f1aefe449a1f3d32eadbc9d

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 09:28

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General

Target

8cb12865a71d87d7311228712db74940N.exe
Size

2.3MB
MD5

8cb12865a71d87d7311228712db74940
SHA1

5015be61802f5b83ca32d637f30df892d8aca0e2
SHA256

376b0d8fb80858c81d3e0536b9dc4e7be10948118f1aefe449a1f3d32eadbc9d
SHA512

0ce4b7ec46da883a6485195f7d3b872a9bd3fef8593b595069868f05720c593a17060dd92ffbc7b7c0b91e362a9abd2365a280eed02090ee1e0e4053f4861e68
SSDEEP

49152:ub+yLLwRrB3tRPltBW5LqLM4DtipK6FvMK7m/1OavYc+F:jwLu13B68g+tiptm9Uc+F

Score

10^/10

discovery 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"	8cb12865a71d87d7311228712db74940N.exe

Drops file in System32 directory 64 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xdccPrograms\7zG.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\mip.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\java-rmi.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\javac.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\sIRC4.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\TabTip.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\msinfo32.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\OSE.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\elevation_service.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\initial_prefere.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\initial_prefere.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\ieinstal.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\java-rmi.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\sIRC4.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\InspectorOfficeGadget.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\TabTip.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\ieinstal.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\jabswitch.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\OfficeC2RClient.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\idlj.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\jar.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\Uninstall.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\appvcleaner.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\chrmstp.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\ExtExport.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\iediagcmd.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\RCX901A.tmp	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\jarsigner.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\java.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\javadoc.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\AppVShNotify.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\OfficeC2RClient.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\chrmstp.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\setup.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\notification_helper.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\ielowutil.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\extcheck.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\jar.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\appvcleaner.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\AppVShNotify.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\InputPersonalization.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\elevation_service.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\chrome.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\RCX903B.tmp	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\OfficeClickToRun.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\VSTOInstaller.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\chrome_pwa_launcher.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\appletviewer.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\jarsigner.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7z.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\OfficeClickToRun.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\dotnet.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\createdump.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\chrome_pwa_launcher.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\setup.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\java.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\javadoc.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7zFM.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\createdump.exe	8cb12865a71d87d7311228712db74940N.exe
File opened for modification	C:\Windows\SysWOW64\DC++ Share\notification_helper.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\ExtExport.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\extcheck.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\mip.exe	8cb12865a71d87d7311228712db74940N.exe
File created	C:\Windows\SysWOW64\DC++ Share\msinfo32.exe	8cb12865a71d87d7311228712db74940N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8cb12865a71d87d7311228712db74940N.exe

C:\Users\Admin\AppData\Local\Temp\8cb12865a71d87d7311228712db74940N.exe
"C:\Users\Admin\AppData\Local\Temp\8cb12865a71d87d7311228712db74940N.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2688

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\DC++ Share\RCX903B.tmp

Filesize
62KB

MD5
b126345317624479f78fbf30b3a1fe5a

SHA1
655c966bf7bbf96ee49c83062d30b9dba17d693c

SHA256
8723d2d97d52f6d3b63968594c93bf2c5b5300b306c9670be4616cb134964301

SHA512
d0be6d608b5f4e482287d16e6587e00be1b4390f78efc3ce63008f99be7358e65f0eef9eba330d845462b64fa7a86cc3f1395b863ad0f8d01c0b790fc2f4c02d

Download Submit
C:\Windows\SysWOW64\xdccPrograms\7zG.exe

Filesize
2.3MB

MD5
8cb12865a71d87d7311228712db74940

SHA1
5015be61802f5b83ca32d637f30df892d8aca0e2

SHA256
376b0d8fb80858c81d3e0536b9dc4e7be10948118f1aefe449a1f3d32eadbc9d

SHA512
0ce4b7ec46da883a6485195f7d3b872a9bd3fef8593b595069868f05720c593a17060dd92ffbc7b7c0b91e362a9abd2365a280eed02090ee1e0e4053f4861e68

Download Submit
memory/2688-93-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-94-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-95-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-96-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-97-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-98-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-99-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-100-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-101-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2688-102-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads