77cb4fb6ff458f32661d0b3a8817e9320e601087a4b9cb69a555287ab5c32a49

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 04:59

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General

Target

77cb4fb6ff458f32661d0b3a8817e9320e601087a4b9cb69a555287ab5c32a49.dll
Size

76KB
MD5

91eb30c9f55ff98cd00bbcd5828fb686
SHA1

7efefd6f4470a818c19640bb21d631c27fb92259
SHA256

77cb4fb6ff458f32661d0b3a8817e9320e601087a4b9cb69a555287ab5c32a49
SHA512

d05b5ec36905841c0c8fc20a78d5b94e366ddcc196cb2b4322ff0e5be1cd0fdafd8cb5e3893f7b29be3880b2a6909aee4e144cd70483bc19d43139768fe49f58
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZKvhmb:c8y93KQjy7G55riF1cMo03s5e

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1148-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1148-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1148-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1148-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2428	1148	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1576 wrote to memory of 1148	1576	rundll32.exe	30
PID 1148 wrote to memory of 2428	1148	rundll32.exe	31
PID 1148 wrote to memory of 2428	1148	rundll32.exe	31
PID 1148 wrote to memory of 2428	1148	rundll32.exe	31
PID 1148 wrote to memory of 2428	1148	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\77cb4fb6ff458f32661d0b3a8817e9320e601087a4b9cb69a555287ab5c32a49.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\77cb4fb6ff458f32661d0b3a8817e9320e601087a4b9cb69a555287ab5c32a49.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1148 -s 328
    3⤵
    - Program crash
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1148-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1148-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1148-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1148-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1148-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download