f2d7f0dc2319cc63b4230a394968538002752093b302157d640282c1e4ba98d4

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
19-08-2024 02:50

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General

Target

9b0304af83043446b7b44be3405ec340N.exe
Size

344KB
MD5

9b0304af83043446b7b44be3405ec340
SHA1

e163bcfd03dab1aaecb0b687cc6b3e1ce6921079
SHA256

f2d7f0dc2319cc63b4230a394968538002752093b302157d640282c1e4ba98d4
SHA512

1cd9226dfc0765645e804d7ccf5ed9495e5cd209008b7b94cd24529556f7f9f165ce66ae371ebc4eda996bddcfc1c34d616b60b3bfbff48aed598364d1cfccd2
SSDEEP

6144:JTz+WrPFZvTXb4RyW42vFlOloh2E+7pYUozDBRm1+gmN:JTBPFV0RyWl3h2E+7pYm0

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2060	dwmsys.exe
2452	dwmsys.exe

Loads dropped DLL 4 IoCs

pid	Process
1984	9b0304af83043446b7b44be3405ec340N.exe
1984	9b0304af83043446b7b44be3405ec340N.exe
1984	9b0304af83043446b7b44be3405ec340N.exe
2060	dwmsys.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	9b0304af83043446b7b44be3405ec340N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dwmsys.exe

Modifies registry class 28 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\runas\command\ = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\DefaultIcon\ = "%1"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_x86_64\\dwmsys.exe\" /START \"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\DefaultIcon\ = "%1"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\runas\command	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\open\command\IsolatedCommand = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\runas\command	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\open\command	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\runas	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\runas\command\IsolatedCommand = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\Content-Type = "application/x-msdownload"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\ = "Application"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\open\command	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\open	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\open	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_x86_64\\dwmsys.exe\" /START \"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\Content-Type = "application/x-msdownload"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\DefaultIcon	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\shell\runas	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\systemui\DefaultIcon	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\ = "systemui"	9b0304af83043446b7b44be3405ec340N.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	9b0304af83043446b7b44be3405ec340N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2060	dwmsys.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2060	1984	9b0304af83043446b7b44be3405ec340N.exe	30
PID 1984 wrote to memory of 2060	1984	9b0304af83043446b7b44be3405ec340N.exe	30
PID 1984 wrote to memory of 2060	1984	9b0304af83043446b7b44be3405ec340N.exe	30
PID 1984 wrote to memory of 2060	1984	9b0304af83043446b7b44be3405ec340N.exe	30
PID 2060 wrote to memory of 2452	2060	dwmsys.exe	31
PID 2060 wrote to memory of 2452	2060	dwmsys.exe	31
PID 2060 wrote to memory of 2452	2060	dwmsys.exe	31
PID 2060 wrote to memory of 2452	2060	dwmsys.exe	31

C:\Users\Admin\AppData\Local\Temp\9b0304af83043446b7b44be3405ec340N.exe
"C:\Users\Admin\AppData\Local\Temp\9b0304af83043446b7b44be3405ec340N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe"
    3⤵
    - Executes dropped EXE
    PID:2452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\Microsoft\SysWOW_x86_64\dwmsys.exe

Filesize
344KB

MD5
711498a9983557026bb223ef9437fbad

SHA1
f931eecf722165574f12e84e5bb097cfc29d7a29

SHA256
fd2dbe5252a8306b96ca8cbeb18d8422acd891a4bdb2a10e0575fd77db07a8cc

SHA512
5e9fe350a98f5470d92b5a1c315d5b1282bf2c1173467f22bebaed2dcceda5937e457b3dbc27a6167f36cf5c93b0f34151dd4baf95472ba896ef1d508bf6d223

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