6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85

Resubmissions

05-07-2023 10:55

230705-m1lr8abf72 8

30-01-2022 18:36

220130-w9ceksgdgp 8

Analysis

max time kernel
33s
max time network
37s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
05-07-2023 10:55

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General

Target

6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85.dll
Size

130KB
MD5

59cb505d1636119f2881caa14bf42326
SHA1

b20e69127f2ca0ae4852c379dcd65348f01d1cc7
SHA256

6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85
SHA512

90667a78df7946ac6b9c90175402d699b1d61bb0b6d30d565b0f7fcc326bd2fc50dcb2a8b304fdf44cb33818c82c779caa23814258c312af596947b576cd5fa3
SSDEEP

3072:C3nCOoM+XU9MCgDFulDgWh3SaHsWZndZt9wxdTXV/:0COP+XU9MCgDFuRgWnHsWyX

Score

8^/10

persistence

Malware Config

Signatures

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\helpsvc\Parameters\ServiceDll = "%Systemroot%\\System32\\Msreszrd.ttf"	regsvr32.exe

Sets service image path in 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\helpsvc\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k netsvcs"	regsvr32.exe

Loads dropped DLL 1 IoCs

pid	Process
1472	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\Msreszrd.ttf	regsvr32.exe
File opened for modification	\??\c:\windows\SysWOW64\Msreszrd.ttf	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe
872	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1472	regsvr32.exe
Token: SeLoadDriverPrivilege	1472	regsvr32.exe
Token: SeShutdownPrivilege	1472	regsvr32.exe
Token: SeTcbPrivilege	1472	regsvr32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 1052 wrote to memory of 872	1052	regsvr32.exe	27
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28
PID 872 wrote to memory of 1472	872	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85.dll
  2⤵
  - Sets DLL path for service in the registry
  - Sets service image path in registry
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:872
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s /u "c:\windows\system32\Msreszrd.ttf"
    3⤵
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:1472

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\Msreszrd.ttf

Filesize
130KB

MD5
59cb505d1636119f2881caa14bf42326

SHA1
b20e69127f2ca0ae4852c379dcd65348f01d1cc7

SHA256
6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85

SHA512
90667a78df7946ac6b9c90175402d699b1d61bb0b6d30d565b0f7fcc326bd2fc50dcb2a8b304fdf44cb33818c82c779caa23814258c312af596947b576cd5fa3

Download Submit
\Windows\SysWOW64\Msreszrd.ttf

Filesize
130KB

MD5
59cb505d1636119f2881caa14bf42326

SHA1
b20e69127f2ca0ae4852c379dcd65348f01d1cc7

SHA256
6262b83425e85d203b4708dc629987ffaa4dff8ab03042e1332b8910b5e75a85

SHA512
90667a78df7946ac6b9c90175402d699b1d61bb0b6d30d565b0f7fcc326bd2fc50dcb2a8b304fdf44cb33818c82c779caa23814258c312af596947b576cd5fa3

Download Submit