6da57a9782179f5f4b5e201ae6ff003b0079e23daa1a1d8a69c2d8cb608c838e

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 12:38

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General

Target

4b756be9e903baef104e049d4c49f6e9.exe
Size

184KB
MD5

4b756be9e903baef104e049d4c49f6e9
SHA1

d8f4ad1b91725d03cd438789ca611a4d0f1f49b3
SHA256

6da57a9782179f5f4b5e201ae6ff003b0079e23daa1a1d8a69c2d8cb608c838e
SHA512

76b2df275e9c41fa49ac33a0bf83afb0b8c82c174a7034a6b44e7fa3e53f7338d3eb6462c3a01565ef123102912c952943628970744b1a6c49649fdf155fd8dd
SSDEEP

3072:OSqAAKl3evu9YedcKspTigA9BT6ecfxiCSeWQBikbPfqmDfgmwGRVFGFbU:Hq9MWoDydpRGdY6QBikjqmDJVRW

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies Shared Task Scheduler registry keys 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{AF0BE91A-D92D-44F5-9581-64F629762E5A}	regsvr32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000700000002321f-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1028	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000002321f-1.dat	upx
behavioral2/memory/1028-3-0x0000000000400000-0x000000000043A000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ccc.dll	4b756be9e903baef104e049d4c49f6e9.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}\ = "C:\\Windows\\SysWow64\\ccc.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}\InprocServer32\ = "C:\\Windows\\SysWow64\\ccc.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF0BE91A-D92D-44F5-9581-64F629762E5A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 1028	3028	4b756be9e903baef104e049d4c49f6e9.exe	88
PID 3028 wrote to memory of 1028	3028	4b756be9e903baef104e049d4c49f6e9.exe	88
PID 3028 wrote to memory of 1028	3028	4b756be9e903baef104e049d4c49f6e9.exe	88

C:\Users\Admin\AppData\Local\Temp\4b756be9e903baef104e049d4c49f6e9.exe
"C:\Users\Admin\AppData\Local\Temp\4b756be9e903baef104e049d4c49f6e9.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\system32\regsvr32.exe /s C:\Windows\system32\ccc.dll
  2⤵
  - Modifies Shared Task Scheduler registry keys
  - Loads dropped DLL
  - Modifies registry class
  PID:1028

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

C:\Windows\SysWOW64\ccc.dll

Filesize
137KB

MD5
4153bf9b607acb9fc311dc2dd29dd122

SHA1
bacc1cd9788c1f427e44000d9132294a1bd11ddc

SHA256
0ffceae6ce1f3be79fcd69c8a30deaa10eb151399e556ab6351eb836fcce8ead

SHA512
e312af8df6fc1474dd79143e0895bf2bd5989871b52a874d487e50bf3f9e62978c480d1ad9cafc5f87912ff65d46da21efed1f65b1ec99cfbdf0d858bf25179c

Download Submit
memory/1028-3-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads