9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef

Analysis

max time kernel
151s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 04:35

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General

Target

9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef.dll
Size

30KB
MD5

613bd35c954253f726fe9687d137ca70
SHA1

e3cdd6c6eaf684505223d38c74c635379c0ff031
SHA256

9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef
SHA512

9d96aa7fd77f69c3340a7d7a6d8a409e9d7707655d53f739f699e6b0b84501b014f75de210ab6834aa36034eb7d1f20f048210e2a526898bdf565ab64e48dda2
SSDEEP

768:gogYVYCjnn15hc21l7Ivg+SboVUnbcuyD7Us:gwOgOI9Rnouy8

Score

9^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 3 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000022ddb-134.dat	acprotect
behavioral2/files/0x0007000000022ddb-136.dat	acprotect
behavioral2/files/0x0007000000022ddb-135.dat	acprotect

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\msflxgrd\Parameters\ServiceDll = "C:\\Windows\\system32\\msflxgrd.ocx.dll"	rundll32.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2604-133-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/files/0x0007000000022ddb-134.dat	upx
behavioral2/files/0x0007000000022ddb-136.dat	upx
behavioral2/files/0x0007000000022ddb-135.dat	upx
behavioral2/memory/4208-137-0x0000000000AC0000-0x0000000000ADB000-memory.dmp	upx
behavioral2/memory/2604-138-0x0000000000400000-0x000000000041B000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
4208	svchost.exe
4208	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msflxgrd.ocx.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\msflxgrd.ocx.dll	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2604	2680	rundll32.exe	76
PID 2680 wrote to memory of 2604	2680	rundll32.exe	76
PID 2680 wrote to memory of 2604	2680	rundll32.exe	76

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Drops file in System32 directory
  PID:2604

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:4208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\msflxgrd.ocx.dll

Filesize
30KB

MD5
613bd35c954253f726fe9687d137ca70

SHA1
e3cdd6c6eaf684505223d38c74c635379c0ff031

SHA256
9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef

SHA512
9d96aa7fd77f69c3340a7d7a6d8a409e9d7707655d53f739f699e6b0b84501b014f75de210ab6834aa36034eb7d1f20f048210e2a526898bdf565ab64e48dda2

Download Submit
C:\Windows\SysWOW64\msflxgrd.ocx.dll

Filesize
30KB

MD5
613bd35c954253f726fe9687d137ca70

SHA1
e3cdd6c6eaf684505223d38c74c635379c0ff031

SHA256
9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef

SHA512
9d96aa7fd77f69c3340a7d7a6d8a409e9d7707655d53f739f699e6b0b84501b014f75de210ab6834aa36034eb7d1f20f048210e2a526898bdf565ab64e48dda2

Download Submit
\??\c:\windows\SysWOW64\msflxgrd.ocx.dll

Filesize
30KB

MD5
613bd35c954253f726fe9687d137ca70

SHA1
e3cdd6c6eaf684505223d38c74c635379c0ff031

SHA256
9cb3b37506d5ebcaf53b783c619bfed22bc1129c559477677a9175719ebb77ef

SHA512
9d96aa7fd77f69c3340a7d7a6d8a409e9d7707655d53f739f699e6b0b84501b014f75de210ab6834aa36034eb7d1f20f048210e2a526898bdf565ab64e48dda2

Download Submit
memory/2604-133-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2604-138-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4208-137-0x0000000000AC0000-0x0000000000ADB000-memory.dmp

Filesize
108KB

Download