27e91e3f6b4b2c5853c59ad4cc8d5d0064bcefcfee10529382d5b6f38eb0977c

Resubmissions

02-08-2024 14:37

240802-rzb9lsxgrm 4

02-08-2024 14:35

240802-rx6qfaxgnr 3

Analysis

max time kernel
90s
max time network
147s
platform
windows11-21h2_x64
resource
win11-20240730-en
resource tags

arch:x64arch:x86image:win11-20240730-enlocale:en-usos:windows11-21h2-x64system
submitted
02-08-2024 14:37

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General

Target

UltimMC/imageformats/qjpeg.dll
Size

246KB
MD5

c228c1486e203d48d9c7d84d0b631e15
SHA1

1ccdd75d6cd473d00aa17686ec98f509b1e8e360
SHA256

a55cb801a07932d263c980b14abdb464acd8150b9258260efdf535634bfe9811
SHA512

a649078738e69572276a37431c495582f933b04701deded8b5f6dd5b3c6d5b9d338ddb242b71659038d324ca74c2a8f2b229c7beba6f16ddea238f2bcbfae870
SSDEEP

6144:jutAUtpjvlyaX8XZ99bkBRSMArBPkfB917Wu:jutAavlqJMArBPkf

Score

3^/10

discovery

Malware Config

Signatures

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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2144 wrote to memory of 2640	2144	rundll32.exe	rundll32.exe
PID 2144 wrote to memory of 2640	2144	rundll32.exe	rundll32.exe
PID 2144 wrote to memory of 2640	2144	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\imageformats\qjpeg.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\imageformats\qjpeg.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2640

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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