8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8

Analysis

max time kernel
145s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 07:43

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General

Target

8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe
Size

208KB
MD5

6b8aa9b897a8f1dff59806389162acaf
SHA1

cfe49742bb39806fcd9c972a9d4e2bd6377d5110
SHA256

8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8
SHA512

d809905d0141e6701d99360c4fe639abe850505b72e660114a616444fa3956451b66c805d7b7fd60a28bedd04d774ea51c5b1ceaf796edd1a4daaad00bb01abe
SSDEEP

6144:FEaItlJ4MQHUp2PcBz5LUykMYGNqURD2PmDYV1jFc:FEaEcUkWz5Yyk10qUZ2PYak

Score

10^/10

persistence upx

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\DCOM Server 37389 = "{2C1CD3D7-86AC-4068-93BC-A02304B37389}"	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000022e14-135.dat	acprotect
behavioral2/files/0x0009000000022e14-136.dat	acprotect

Blocklisted process makes network request 4 IoCs

flow	pid	Process
7	644	rundll32.exe
10	644	rundll32.exe
55	644	rundll32.exe
56	644	rundll32.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000022e14-135.dat	upx
behavioral2/files/0x0009000000022e14-136.dat	upx
behavioral2/memory/644-139-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx
behavioral2/memory/644-140-0x0000000010000000-0x0000000010D2F000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
644	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ogmm.dll	8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B37389}\InProcServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B37389}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B37389}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2C1CD3D7-86AC-4068-93BC-A02304B37389}\InProcServer32\ = "C:\\Windows\\SysWow64\\ogmm.dll"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 644	1692	8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe	80
PID 1692 wrote to memory of 644	1692	8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe	80
PID 1692 wrote to memory of 644	1692	8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe	80

C:\Users\Admin\AppData\Local\Temp\8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe
"C:\Users\Admin\AppData\Local\Temp\8faf3d7287399c8a9dd4155deb2269d00422616757a8faf06c46624719668fa8.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Windows\system32\ogmm.dll",run
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Blocklisted process makes network request
  - Drops file in Drivers directory
  - Loads dropped DLL
  - Modifies registry class
  PID:644

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:5084

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\ogmm.dll

Filesize
166KB

MD5
ae3210f0cce1d015587bc79d550b86e2

SHA1
b59766d2d60711e1a8e0bf729d3ad3fcc2f14add

SHA256
00ee5a7a24089a76cc08ab18f4e372f2652a8f6c830dfceda70104a320eaae0a

SHA512
bf87ee1f5ee32807c248b4072c994f9f5f0daf7f013f9023d2d4a10e30203a2f07d614b45f7d5f18f8d2df99b7fd372ec7f55a53314f559f3368fc4c5b51231f

Download Submit
C:\Windows\SysWOW64\ogmm.dll

Filesize
166KB

MD5
ae3210f0cce1d015587bc79d550b86e2

SHA1
b59766d2d60711e1a8e0bf729d3ad3fcc2f14add

SHA256
00ee5a7a24089a76cc08ab18f4e372f2652a8f6c830dfceda70104a320eaae0a

SHA512
bf87ee1f5ee32807c248b4072c994f9f5f0daf7f013f9023d2d4a10e30203a2f07d614b45f7d5f18f8d2df99b7fd372ec7f55a53314f559f3368fc4c5b51231f

Download Submit
memory/644-139-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/644-140-0x0000000010000000-0x0000000010D2F000-memory.dmp

Filesize
13.2MB

Download
memory/1692-134-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/5084-137-0x00007FFDD0A80000-0x00007FFDD0A82000-memory.dmp

Filesize
8KB

Download