dfb61021b8eb1beecc33226bfc7ffbd40bb6ec769d6402c83592f43305b57884

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/01/2025, 03:02

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General

Target

dfb61021b8eb1beecc33226bfc7ffbd40bb6ec769d6402c83592f43305b57884.dll
Size

76KB
MD5

6c178d0f88a9260321f573963ec0a854
SHA1

cf87385a07bf31fe94a3034d76e9252297d2b8aa
SHA256

dfb61021b8eb1beecc33226bfc7ffbd40bb6ec769d6402c83592f43305b57884
SHA512

ed86d5bd0c532c66eac175634bbe409c81bb50b31b3c2f36c7a9de922b9885909572f8a3ebbb9bba68b99841a462471693aabc37d8795b88aee9520f8668efde
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZTKuG+0S+:c8y93KQjy7G55riF1cMo03xKF5f

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2992-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2992-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2992-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2992-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2380	2992	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	2992	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2984 wrote to memory of 2992	2984	rundll32.exe	30
PID 2992 wrote to memory of 2380	2992	rundll32.exe	31
PID 2992 wrote to memory of 2380	2992	rundll32.exe	31
PID 2992 wrote to memory of 2380	2992	rundll32.exe	31
PID 2992 wrote to memory of 2380	2992	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfb61021b8eb1beecc33226bfc7ffbd40bb6ec769d6402c83592f43305b57884.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfb61021b8eb1beecc33226bfc7ffbd40bb6ec769d6402c83592f43305b57884.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 312
    3⤵
    - Program crash
    PID:2380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/2992-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2992-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2992-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2992-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2992-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download