2227d9ea56b3af66b980be46d582547c43acdde9670874bea48c374b7afc4078

Analysis

max time kernel
94s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 17:19

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General

Target

77efbb0ae28325ae8765c2e00f79566f.exe
Size

1.2MB
MD5

77efbb0ae28325ae8765c2e00f79566f
SHA1

9db3f690278e5f1df87314c5e02147e87599f200
SHA256

2227d9ea56b3af66b980be46d582547c43acdde9670874bea48c374b7afc4078
SHA512

4a3363c4e2c0dec0f2eb368386adbe29c4a41b0866bcffd14643342555f4a9bced7e6bc874b5febd4ed4e26a3d62ff29f2cefcf2265cb1c462bbc550314e2233
SSDEEP

24576:pAbMSe0NArZRTldLRxpyg9fKPlU0Lw62uT+x1fWp2vI:pONerTtvLMw62THI

Score

7^/10

discovery

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	77efbb0ae28325ae8765c2e00f79566f.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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	77efbb0ae28325ae8765c2e00f79566f.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	77efbb0ae28325ae8765c2e00f79566f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2288 set thread context of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3508	320	WerFault.exe	85
2720	320	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
320	77efbb0ae28325ae8765c2e00f79566f.exe
320	77efbb0ae28325ae8765c2e00f79566f.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
320	77efbb0ae28325ae8765c2e00f79566f.exe
320	77efbb0ae28325ae8765c2e00f79566f.exe
320	77efbb0ae28325ae8765c2e00f79566f.exe
320	77efbb0ae28325ae8765c2e00f79566f.exe
320	77efbb0ae28325ae8765c2e00f79566f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85
PID 2288 wrote to memory of 320	2288	77efbb0ae28325ae8765c2e00f79566f.exe	85

C:\Users\Admin\AppData\Local\Temp\77efbb0ae28325ae8765c2e00f79566f.exe
"C:\Users\Admin\AppData\Local\Temp\77efbb0ae28325ae8765c2e00f79566f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\77efbb0ae28325ae8765c2e00f79566f.exe
  "C:\Users\Admin\AppData\Local\Temp\77efbb0ae28325ae8765c2e00f79566f.exe" Track=""
  2⤵
  - Checks BIOS information in registry
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 320 -s 2032
    3⤵
    - Program crash
    PID:3508
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 320 -s 1972
    3⤵
    - Program crash
    PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 320 -ip 320
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 320 -ip 320
1⤵
PID:4640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/320-0-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-1-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-2-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-3-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-8-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-18-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-20-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/320-34-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download