b92754e110f9d78b567dc86943da18102c8714bd1de82cd5e6ab273f79333543

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 18:28

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General

Target

b92754e110f9d78b567dc86943da18102c8714bd1de82cd5e6ab273f79333543N.dll
Size

76KB
MD5

5f4f6e95e91dacf4fbfd6111ee3d73d0
SHA1

532034ff212a1fc69700ab2aa9b1f421b298e732
SHA256

b92754e110f9d78b567dc86943da18102c8714bd1de82cd5e6ab273f79333543
SHA512

fcac39b7df1d27cc7c14885f9130df6e6095491989ad7d4c85d4143ef5ea80b93a224c4f9c2361b16973a7921f20cfc0edcd9e0b6283ffbeb8a060515298d3b7
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZzUG5JZAOC0G:c8y93KQjy7G55riF1cMo03G40OCt

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/1600-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1600-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1600-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1600-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2588	1600	WerFault.exe	28

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	1600	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 2192 wrote to memory of 1600	2192	rundll32.exe	28
PID 1600 wrote to memory of 2588	1600	rundll32.exe	29
PID 1600 wrote to memory of 2588	1600	rundll32.exe	29
PID 1600 wrote to memory of 2588	1600	rundll32.exe	29
PID 1600 wrote to memory of 2588	1600	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b92754e110f9d78b567dc86943da18102c8714bd1de82cd5e6ab273f79333543N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b92754e110f9d78b567dc86943da18102c8714bd1de82cd5e6ab273f79333543N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 328
    3⤵
    - Program crash
    PID:2588

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/1600-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1600-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1600-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1600-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download