9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

Analysis

max time kernel
151s
max time network
142s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
15/10/2023, 19:42

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General

Target

a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
Size

144KB
MD5

a4c5b1b00a0f260c2dafa1c753018970
SHA1

4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA256

9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512

e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
SSDEEP

1536:PJg/NVWIHWAmJihqbzWh9GuUKzzcjoNP3ojR6MUAhCLR3Jz4kahylrfR+yIMpmG5:arVSlGh9Gx0zcjoRmR1Ud4kYKkOmHlI

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	zuiriaw.exe

Loads dropped DLL 7 IoCs

pid	Process
2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
2640	WerFault.exe
2640	WerFault.exe
2640	WerFault.exe
2640	WerFault.exe
2640	WerFault.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows\CurrentVersion\Run\zuiriaw = "C:\\Users\\Admin\\zuiriaw.exe /q"	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2144 set thread context of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2640	2780	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
2780	zuiriaw.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2144 wrote to memory of 2420	2144	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	28
PID 2420 wrote to memory of 2780	2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	29
PID 2420 wrote to memory of 2780	2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	29
PID 2420 wrote to memory of 2780	2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	29
PID 2420 wrote to memory of 2780	2420	a4c5b1b00a0f260c2dafa1c753018970_exe32.exe	29
PID 2780 wrote to memory of 2640	2780	zuiriaw.exe	30
PID 2780 wrote to memory of 2640	2780	zuiriaw.exe	30
PID 2780 wrote to memory of 2640	2780	zuiriaw.exe	30
PID 2780 wrote to memory of 2640	2780	zuiriaw.exe	30

C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
"C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
  71
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Loads dropped DLL
  - Adds Run key to start application
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Users\Admin\zuiriaw.exe
    "C:\Users\Admin\zuiriaw.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 188
      4⤵
      Loads dropped DLL
      Program crash
      PID:2640

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
C:\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
C:\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
\Users\Admin\zuiriaw.exe

Filesize
144KB

MD5
a4c5b1b00a0f260c2dafa1c753018970

SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

Download Submit
memory/2420-25-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-30-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-26-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-27-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-28-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-29-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-31-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-32-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-33-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-34-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-35-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-36-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-37-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2420-38-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download